Source Insects
Mixed-sex adults of S. oryzae and P. truncatus were used in all experiments for this study. These insects were cultured on organic soft wheat (var. Mexa) and maize (var Dias), respectively, and maintained in incubators under constant abiotic conditions at 27 \u00b1 0.1\u00b0C, 55 \u00b1 1 % relative humidity (r.h.), and 14:10 (L:D) h photoperiod. Colonies were maintained at the Laboratory of Entomology and Agricultural Zoology (LEAZ), at the Department of Agriculture, Crop Production and Rural Environment, University of Thessaly, Greece.
Insecticide formulations for concrete surfaces and for grain treatment
We used the formulation Teenox\u00ae EC (Armosa Tech S.A., Engis, Belgium), that contains 10% w/v of azamethiphos. Concrete arenas were prepared for testing by first mixing a slurry of water and cement in a large pitcher (Rockite, Cleveland, OH, US). Briefly, water was added until a thick paste consistency was achieved. The mixture then sat for 1 min before it was stirred vigorously, making sure any remaining clumps of dry Rockite were hydrated. Once the mixture was a loose, batter-like consistency, 8.5 ml of the slurry was poured into plastic Petri dishes (90 mm in diameter and 15 mm in height; area of the bottom: 63.61 cm2; hereafter, arenas). The slurry was poured to create a surface of approximately 0.5 cm thick. The cement dishes were then left at room temperature to cure for 24 h. The insecticide treatments that were sprayed onto the concrete arenas included: control (distilled H2O) and with the corresponding concentrations being 5 x 10-6, 5 x 10-4 and 5 x 10-3 mg a.i./cm\u00b2. We selected these concentrations, as the label concentrations of Teenox\u00ae EC vary, depending of the target species and key application scenario.
Untreated, clean, and uninfested maize and wheat were used in the experiments that had been frozen for 72 h beforehand to ensure no prior infestation. The insecticide treatments were sprayed onto 500 g lots of maize or wheat with an artist\u2019s airbrush sprayer (Badger 100 series, Badger Corporation, Franklin Park, IL, US; designed to spray a line 3.2\u201350.8 mm wide with materials of high viscosity) at a pressure of 0.70 kg/cm2 for each treatment listed above. For both maize and wheat, Teenox\u00ae EC was applied on grain at 0.01, 1, and 10 ppm (mg of active ingredient per kg of grain), in order to cover a wide range of concentrations, given that this is the first time that Teenox\u00ae EC is tested on grains. The insecticide was applied on maize or wheat grain in three separate formulation events on different days, one for each replicate.
Experimental Setup
Cohorts of 10 mixed-sex adult S. oryzae and P. truncatus were exposed for 24, 48, and 168 h periods on concrete and 72 h, 7 and 14 d in grain. Sitophilus oryzae was tested on wheat and P. truncatus was tested on maize. The cohorts were added to separate vials filled with 10 g of grain. After the exposure period, individuals were removed and placed into a clean Petri dish with filter paper and evaluated for condition. Using a stereomicroscope (SMZ-18, Nikon Inc., Tokyo, Japan) under 60\u00d7 magnification, insects were classified as alive (moving normally, is able to right itself when flipped over, no twitching), affected (moving sluggishly or erratically, unable to right itself, twitching of antennae or legs may be present), or dead (completely immobile even after prodding). After evaluating insect mortality on grain on day 14, adults were removed from the vials, and commodity was kept for 65 d to assess progeny production.
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Insecticide formulations for concrete surfaces and for grain treatment
We used the formulation Teenox\u00ae EC (Armosa Tech S.A., Engis, Belgium), that contains 10% w/v of azamethiphos. Concrete arenas were prepared for testing by first mixing a slurry of water and cement in a large pitcher (Rockite, Cleveland, OH, US). Briefly, water was added until a thick paste consistency was achieved. The mixture then sat for 1 min before it was stirred vigorously, making sure any remaining clumps of dry Rockite were hydrated. Once the mixture was a loose, batter-like consistency, 8.5 ml of the slurry was poured into plastic Petri dishes (90 mm in diameter and 15 mm in height; area of the bottom: 63.61 cm2; hereafter, arenas). The slurry was poured to create a surface of approximately 0.5 cm thick. The cement dishes were then left at room temperature to cure for 24 h. The insecticide treatments that were sprayed onto the concrete arenas included: control (distilled H2O) and with the corresponding concentrations being 5 x 10-6, 5 x 10-4 and 5 x 10-3 mg a.i./cm\u00b2. We selected these concentrations, as the label concentrations of Teenox\u00ae EC vary, depending of the target species and key application scenario.
Untreated, clean, and uninfested maize and wheat were used in the experiments that had been frozen for 72 h beforehand to ensure no prior infestation. The insecticide treatments were sprayed onto 500 g lots of maize or wheat with an artist\u2019s airbrush sprayer (Badger 100 series, Badger Corporation, Franklin Park, IL, US; designed to spray a line 3.2\u201350.8 mm wide with materials of high viscosity) at a pressure of 0.70 kg/cm2 for each treatment listed above. For both maize and wheat, Teenox\u00ae EC was applied on grain at 0.01, 1, and 10 ppm (mg of active ingredient per kg of grain), in order to cover a wide range of concentrations, given that this is the first time that Teenox\u00ae EC is tested on grains. The insecticide was applied on maize or wheat grain in three separate formulation events on different days, one for each replicate.
Experimental Setup
Cohorts of 10 mixed-sex adult S. oryzae and P. truncatus were exposed for 24, 48, and 168 h periods on concrete and 72 h, 7 and 14 d in grain. Sitophilus oryzae was tested on wheat and P. truncatus was tested on maize. The cohorts were added to separate vials filled with 10 g of grain. After the exposure period, individuals were removed and placed into a clean Petri dish with filter paper and evaluated for condition. Using a stereomicroscope (SMZ-18, Nikon Inc., Tokyo, Japan) under 60\u00d7 magnification, insects were classified as alive (moving normally, is able to right itself when flipped over, no twitching), affected (moving sluggishly or erratically, unable to right itself, twitching of antennae or legs may be present), or dead (completely immobile even after prodding). After evaluating insect mortality on grain on day 14, adults were removed from the vials, and commodity was kept for 65 d to assess progeny production.
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Trapping in 2023 with a linear set of dosages of (E)-8-dodecenyl acetate
Field trapping was done according to the methodology in Ruiz et al. 2022. The fields were located in North-Central Kansas at the Land Institute near Salina, KS. No pesticides were applied to these fields during the experiment in 2023. Starting the first week of June, six transects were set out, two in each Silphium integrifolium field. Each transect contained seven 30.4 cm x 30.4 cm sticky card traps (Alpha Scents, Canby, OR, USA) affixed to the top of a 1.27 cm diameter, three foot in length PVC pole that was hammered into the ground until sturdy. The cards were affixed using a 271 cm long sticky card ring holder (Olson Products Inc., Medina, OH, USA) that was bent to a 90\u00b0 angle and placed inside the PVC pipe. Two large binder clips were also used to anchor the sticky card to its card holder.
The sticky traps in each transect were spaced 10 meters apart around the perimeter of the field. Within each transect, traps were baited with a linear increase in concentrations in 2023, including either a control (50 \u00b5l of acetone), a low concentration (50 \u00b5l of a solution made by mixing 5.75 \u00b5l of (E)-8-dodecenyl acetate in 5 ml of acetone), or a doubled concentration (11.5 \u00b5l of (E)-8-dodecenyl acetate diluted in 5 ml of acetone) of (E)-8-dodecenyl acetate (Alfa Chemistry, Ronkonkoma, NY, USA). All lures were added to a 3-ml LDPE dropping bottle (Wheaton, DWK Life Sciences, Millville, NJ, USA). The clear sticky card traps were collected and replaced biweekly until the first E. giganteana adult was caught, then traps were changed weekly. The lures and control bottles were replaced once every two weeks (with lure emissions confirmed out to 14 d in Ruiz et al. 2022) and their position in the field rotated at each change. Each lure was in each position twice over the course of the season.
When collected, the sticky cards were held in a 7.6 L (=2 gal) labeled Ziploc\u00a9 bag transported back to USDA-ARS. All collected sticky traps were placed in a freezer for approximately 24 h. The total number of E. giganteana per trap and their distance from the lure in millimeters was recorded. In addition, the number of nontarget lepidoptera was recorded on each trap. Individual E. giganteana and non-target lepidoptera were only counted if more than half of the specimen was remaining on the sticky trap at the time of counting to ensure positive identification.
Trapping in 2024 with an exponential set of concentrations of (E)-8-dodecenyl acetate
Field trapping in 2024 was conducted similarly to that in 2023 with the following modifications. Three different fields located at the Land Institute were used (Table 1). [HS1] Pesticides were applied once to one of the fields and adjacent to one of the others. Three transects were deployed in each of the three fields. Each transect contained four traps for a total of 36 traps. The traps were assembled similarly to those used in 2023, but a hand-made sticky card was used instead of a manufactured one to improve captures. These sticky cards were made of a laminated 21.6 \u00d7 27.9 cm (=8.5 by 11 in) piece of white cardstock paper (Astrobright, Neenah, WI, USA) coated on both sides with TAD\u24c7 all-weather adhesive (Tr\u00e9c\u00e9 Adhesives Division, Adair, OK, USA). The sticky sides were covered with wax paper for ease of travel. Additionally, the sticky cards had a chicken wire cage placed over them in the field to try to prevent the capture of birds and other nontargets on the traps. Traps in 2024 were baited with an exponential set of concentrations of (E)-8-dodecenyl acetate. In each transect, there was a solvent only control (50 \u00b5l of acetone), a low concentration equivalent to the 2023 treatment (50 \u00b5l of a solution made of 5.75 \u00b5l of (E)-8-dodecenyl acetate diluted in 5 ml of acetone), a medium concentration (50 \u00b5l of a solution made of 78.5 \u00b5l of (E)-8-dodecenyl acetate diluted in 5 ml of acetone), and a high concentration (50 \u00b5l of a solution made of 580.4 \u00b5l of (E)-8-dodecenyl acetate diluted in 5 ml of acetone). The traps were replaced weekly, and the lures were replaced biweekly, as well as rotated positions in the transect. Each lure was in each position twice over the course of the season.
Eucosma giganteana and Silphium integrifolium collections from the field
Eucosma giganteana cannot yet be reared successfully in the laboratory, thus we sourced all specimens from the field. Adult E. giganteana individuals were carefully captured by hand in one of the fields planted to Silphium integrifolium at the Land Institute (38.769622, -97.598576) between 22:00 and 24:00 five times a week from June to August 2024. Moths were immediately sexed and individually placed in small deli cups with appropriate labels. They were brought back to the USDA-ARS Center for Grain and Animal Health (39.1955486, -96.5987334) for the experiments described below. Once in the lab but prior to use in experiments, moths were kept in a quiet environment at approximately 23 \u00b1 0.1\u2103 and 16:8 L:D photoperiod. Importantly, no lures were used to capture insects to avoid biasing the results of the experiments below. Silphium integrifolium flower heads were cut 1 cm below the flower and brought back on a weekly basis during the same timeframe and stored at 4\u00b0C until needed for experiments. Flower heads were never more than 4 days old prior to use.
Headspace Characterization
Headspace was collected from the following treatments: 10 E. giganteana male moths only, 10 E. giganteana female moths only, an even mix of male and female moths (5:5), flower cuttings of S. integrifolium, and a blank control. For the E. giganteana treatments, only alive, healthy adult moths that were collected within five days were used. For the S. integrifolium collections, approximately 25 grams of flower heads cut the same week as collections were used.
For each treatment, E. giganteana or S. integrifolium were placed in a clean 100-mL beaker. To prevent moth escapees, a metal mesh top was constructed and affixed to the opening of the beaker. The beaker was then placed in one of eight 500-mL glass headspace collection containers with a PTFE septum and lid. A Pora-Pak Q volatile collection trap (VCT) was inserted in the output end. The VCT consisted of an angled drip-tip collection point borosilicate glass tube with a mesh (Stainless Steel #316 screen), packed with 20 mg of PoraPak-Q\u2122 chemical absorbent held in place with a borosilicate glass wool plug, and followed by a PTFE Teflon\u2122 compression seal. A PTFE tube spanned from the flow meter (CADS-4CPP, Clean Air Delivery System, Sigma Scientific, LLC, Micanopy, FL, USA) to the input end of the headspace container at a flow rate of 1 L/min. Prior to that, the air was scrubbed with an activated carbon filter and was pumped in using the central air pump for the center. Samples ran for 24 h. Each volatile collection trap was collected and eluted with 150 \u00b5l of dichloromethane in a fume hood into a 2-mL GC vial containing a 250 \u00b5l glass insert with polymer feet. The solvent was gently pushed through the volatile collection trap with N2 gas. At the end of collecting all the samples, 1 \u00b5l of an internal standard, tetradecane (190.5 ng), was added to each of the samples. The samples were then all capped with a magnetic screw top lid and secured with PTFE tape before being placed in a freezer at -20 \u2103 until they could be run. All headspace samples were collected within 5 weeks. After each replication, the headspace collection containers were all washed with methanol and then hexane. VCTs were rinsed in triplicate with dichloromethane. A total of at least n = 5 replicates were tested for each treatment.
Gas Chromatography Coupled with Mass Spectrometry
All headspace collection sample extracts were run on an Agilent 7890B gas chromatograph (GC) equipped with an Agilent Durabond HP-5 column (30 m length, 0.250 mm diameter and 0.25 \u03bcm film thickness) with He as the carrier gas at a constant 1.2 mL/min flow and 40 cm/s velocity. The GC was coupled with a single-quadrupole Agilent 5997B mass spectrometer (MS). The compounds were separated by auto-injecting 1 \u03bcl of each sample under splitless into the GC\u2013MS at room temperature (approximately 23 \u00b0C). The flow rate was 18 ml/min. The GC program consisted of 40 \u00b0C for 1 min followed by 10 \u00b0C/min increases to 300 \u00b0C and then held for 26.5 min. After a solvent delay of 3 min, mass ranges between 50 and 550 atomic mass units were scanned. Compounds were tentatively identified by comparison of spectral data with those from the NIST 14 library and by GC retention index. The samples were normalized according to the following formula: (Pksam \u2013 Pkmin)/(Pkmax \u2013 Pkmin), where Pksam is the peak area from the sample, Pkmin is the global minimum peak area, and Pkmax is the global max peak area.
Electroantennography of E. giganteana
All electroantennogram (EAG) recordings of E. giganteana were taken from 19:00 to 23:00 which corresponded to the peak activity period of E. giganteana based on prior literature (Ruiz et al. 2022). Prior to recordings, the machine and software were powered on and given 30 min to warm up. Only field-captured moths within ...","distribution":[{"@type":"dcat:Distribution","downloadURL":"https://ndownloader.figshare.com/files/51279737","format":"csv","mediaType":"text/csv","title":"scribner_headspace_volatiles_eucosma_2024.csv"},{"@type":"dcat:Distribution","downloadURL":"https://ndownloader.figshare.com/files/51279740","format":"csv","mediaType":"text/csv","title":"Eucosma_EAD .csv"},{"@type":"dcat:Distribution","downloadURL":"https://ndownloader.figshare.com/files/51279743","format":"csv","mediaType":"text/csv","title":"Combined flight mill data1.csv"},{"@type":"dcat:Distribution","downloadURL":"https://ndownloader.figshare.com/files/51279749","format":"csv","mediaType":"text/csv","title":"Trapping_combined2024.csv"},{"@type":"dcat:Distribution","downloadURL":"https://ndownloader.figshare.com/files/66814319","format":"csv","mediaType":"text/csv","title":"beta_myrcene_NIST_mass_spectra.csv"},{"@type":"dcat:Distribution","downloadURL":"https://ndownloader.figshare.com/files/66814322","format":"csv","mediaType":"text/csv","title":"beta_myrcene_silphium_sample.csv"},{"@type":"dcat:Distribution","downloadURL":"https://ndownloader.figshare.com/files/66814325","format":"csv","mediaType":"text/csv","title":"beta_myrcene_std_sample.csv"},{"@type":"dcat:Distribution","downloadURL":"https://ndownloader.figshare.com/files/66814328","format":"csv","mediaType":"text/csv","title":"beta_phellandrene_NIST_mass_spectra.csv"},{"@type":"dcat:Distribution","downloadURL":"https://ndownloader.figshare.com/files/66814331","format":"csv","mediaType":"text/csv","title":"beta_phellandrene_sample_silphium.csv"},{"@type":"dcat:Distribution","downloadURL":"https://ndownloader.figshare.com/files/66814334","format":"csv","mediaType":"text/csv","title":"beta_phellandrene_std_sample.csv"},{"@type":"dcat:Distribution","downloadURL":"https://ndownloader.figshare.com/files/66814337","format":"csv","mediaType":"text/csv","title":"beta_pinene_NIST_extracted_mass_spectrum.csv"},{"@type":"dcat:Distribution","downloadURL":"https://ndownloader.figshare.com/files/66814340","format":"csv","mediaType":"text/csv","title":"beta_pinene_sample_silphium.csv"},{"@type":"dcat:Distribution","downloadURL":"https://ndownloader.figshare.com/files/66814343","format":"csv","mediaType":"text/csv","title":"beta_pinene_std_sample.csv"},{"@type":"dcat:Distribution","downloadURL":"https://ndownloader.figshare.com/files/66814346","format":"csv","mediaType":"text/csv","title":"camphene_in_silphium_sample_mass_spectrum.csv"},{"@type":"dcat:Distribution","downloadURL":"https://ndownloader.figshare.com/files/66814349","format":"csv","mediaType":"text/csv","title":"camphene_NIST_mass_spectra.csv"},{"@type":"dcat:Distribution","downloadURL":"https://ndownloader.figshare.com/files/66814352","format":"csv","mediaType":"text/csv","title":"camphene_standard_sample.csv"},{"@type":"dcat:Distribution","downloadURL":"https://ndownloader.figshare.com/files/66814355","format":"csv","mediaType":"text/csv","title":"D_limonene_NIST_mass_spectra.csv"},{"@type":"dcat:Distribution","downloadURL":"https://ndownloader.figshare.com/files/66814358","format":"csv","mediaType":"text/csv","title":"D_limonene_silphium_sample.csv"},{"@type":"dcat:Distribution","downloadURL":"https://ndownloader.figshare.com/files/66814361","format":"csv","mediaType":"text/csv","title":"D_limonene_std_sample.csv"},{"@type":"dcat:Distribution","downloadURL":"https://ndownloader.figshare.com/files/66814364","format":"R","mediaType":"text/plain","title":"Hazel Amalgamated Script.R"},{"@type":"dcat:Distribution","downloadURL":"https://ndownloader.figshare.com/files/66814367","format":"docx","mediaType":"application/vnd.openxmlformats-officedocument.wordprocessingml.document","title":"README Scribner et al.docx"}],"identifier":"10.15482/USDA.ADC/28055111.v2","keyword":["ars","attract-and-kill","behavior","behavioral ecology","behaviorally-based management","cgahr","cup plant","eag","eucosma giganteana","flight mill","giant eucosma moth","insect behavior","insect flight","integrated pest management","kansas","lepidoptera","manhattan, ks","mating disruption","monitoring","pest","physiology","prairie","semiochemicals","silphium","silphium integrifolium","the land institute","tortricidae","trapping","usda"],"license":"https://creativecommons.org/publicdomain/zero/1.0/","modified":"2026-07-31","programCode":["005:040"],"publisher":{"@type":"org:Organization","name":"Agricultural Research Service"},"temporal":"2023-05-01/2024-10-01","title":"Data from: Behavioral and physiological response of Eucosma giganteana to semiochemicals from conspecifics and Silphium integrifolium"},"description":"
[NOTE: 2026-07-31: Data files added, see README file for descriptions]
Trapping in 2023 with a linear set of dosages of (E)-8-dodecenyl acetate
Field trapping was done according to the methodology in Ruiz et al. 2022. The fields were located in North-Central Kansas at the Land Institute near Salina, KS. No pesticides were applied to these fields during the experiment in 2023. Starting the first week of June, six transects were set out, two in each Silphium integrifolium field. Each transect contained seven 30.4 cm x 30.4 cm sticky card traps (Alpha Scents, Canby, OR, USA) affixed to the top of a 1.27 cm diameter, three foot in length PVC pole that was hammered into the ground until sturdy. The cards were affixed using a 271 cm long sticky card ring holder (Olson Products Inc., Medina, OH, USA) that was bent to a 90\u00b0 angle and placed inside the PVC pipe. Two large binder clips were also used to anchor the sticky card to its card holder.
The sticky traps in each transect were spaced 10 meters apart around the perimeter of the field. Within each transect, traps were baited with a linear increase in concentrations in 2023, including either a control (50 \u00b5l of acetone), a low concentration (50 \u00b5l of a solution made by mixing 5.75 \u00b5l of (E)-8-dodecenyl acetate in 5 ml of acetone), or a doubled concentration (11.5 \u00b5l of (E)-8-dodecenyl acetate diluted in 5 ml of acetone) of (E)-8-dodecenyl acetate (Alfa Chemistry, Ronkonkoma, NY, USA). All lures were added to a 3-ml LDPE dropping bottle (Wheaton, DWK Life Sciences, Millville, NJ, USA). The clear sticky card traps were collected and replaced biweekly until the first E. giganteana adult was caught, then traps were changed weekly. The lures and control bottles were replaced once every two weeks (with lure emissions confirmed out to 14 d in Ruiz et al. 2022) and their position in the field rotated at each change. Each lure was in each position twice over the course of the season.
When collected, the sticky cards were held in a 7.6 L (=2 gal) labeled Ziploc\u00a9 bag transported back to USDA-ARS. All collected sticky traps were placed in a freezer for approximately 24 h. The total number of E. giganteana per trap and their distance from the lure in millimeters was recorded. In addition, the number of nontarget lepidoptera was recorded on each trap. Individual E. giganteana and non-target lepidoptera were only counted if more than half of the specimen was remaining on the sticky trap at the time of counting to ensure positive identification.
Trapping in 2024 with an exponential set of concentrations of (E)-8-dodecenyl acetate
Field trapping in 2024 was conducted similarly to that in 2023 with the following modifications. Three different fields located at the Land Institute were used (Table 1). [HS1] Pesticides were applied once to one of the fields and adjacent to one of the others. Three transects were deployed in each of the three fields. Each transect contained four traps for a total of 36 traps. The traps were assembled similarly to those used in 2023, but a hand-made sticky card was used instead of a manufactured one to improve captures. These sticky cards were made of a laminated 21.6 \u00d7 27.9 cm (=8.5 by 11 in) piece of white cardstock paper (Astrobright, Neenah, WI, USA) coated on both sides with TAD\u24c7 all-weather adhesive (Tr\u00e9c\u00e9 Adhesives Division, Adair, OK, USA). The sticky sides were covered with wax paper for ease of travel. Additionally, the sticky cards had a chicken wire cage placed over them in the field to try to prevent the capture of birds and other nontargets on the traps. Traps in 2024 were baited with an exponential set of concentrations of (E)-8-dodecenyl acetate. In each transect, there was a solvent only control (50 \u00b5l of acetone), a low concentration equivalent to the 2023 treatment (50 \u00b5l of a solution made of 5.75 \u00b5l of (E)-8-dodecenyl acetate diluted in 5 ml of acetone), a medium concentration (50 \u00b5l of a solution made of 78.5 \u00b5l of (E)-8-dodecenyl acetate diluted in 5 ml of acetone), and a high concentration (50 \u00b5l of a solution made of 580.4 \u00b5l of (E)-8-dodecenyl acetate diluted in 5 ml of acetone). The traps were replaced weekly, and the lures were replaced biweekly, as well as rotated positions in the transect. Each lure was in each position twice over the course of the season.
Eucosma giganteana and Silphium integrifolium collections from the field
Eucosma giganteana cannot yet be reared successfully in the laboratory, thus we sourced all specimens from the field. Adult E. giganteana individuals were carefully captured by hand in one of the fields planted to Silphium integrifolium at the Land Institute (38.769622, -97.598576) between 22:00 and 24:00 five times a week from June to August 2024. Moths were immediately sexed and individually placed in small deli cups with appropriate labels. They were brought back to the USDA-ARS Center for Grain and Animal Health (39.1955486, -96.5987334) for the experiments described below. Once in the lab but prior to use in experiments, moths were kept in a quiet environment at approximately 23 \u00b1 0.1\u2103 and 16:8 L:D photoperiod. Importantly, no lures were used to capture insects to avoid biasing the results of the experiments below. Silphium integrifolium flower heads were cut 1 cm below the flower and brought back on a weekly basis during the same timeframe and stored at 4\u00b0C until needed for experiments. Flower heads were never more than 4 days old prior to use.
Headspace Characterization
Headspace was collected from the following treatments: 10 E. giganteana male moths only, 10 E. giganteana female moths only, an even mix of male and female moths (5:5), flower cuttings of S. integrifolium, and a blank control. For the E. giganteana treatments, only alive, healthy adult moths that were collected within five days were used. For the S. integrifolium collections, approximately 25 grams of flower heads cut the same week as collections were used.
For each treatment, E. giganteana or S. integrifolium were placed in a clean 100-mL beaker. To prevent moth escapees, a metal mesh top was constructed and affixed to the opening of the beaker. The beaker was then placed in one of eight 500-mL glass headspace collection containers with a PTFE septum and lid. A Pora-Pak Q volatile collection trap (VCT) was inserted in the output end. The VCT consisted of an angled drip-tip collection point borosilicate glass tube with a mesh (Stainless Steel #316 screen), packed with 20 mg of PoraPak-Q\u2122 chemical absorbent held in place with a borosilicate glass wool plug, and followed by a PTFE Teflon\u2122 compression seal. A PTFE tube spanned from the flow meter (CADS-4CPP, Clean Air Delivery System, Sigma Scientific, LLC, Micanopy, FL, USA) to the input end of the headspace container at a flow rate of 1 L/min. Prior to that, the air was scrubbed with an activated carbon filter and was pumped in using the central air pump for the center. Samples ran for 24 h. Each volatile collection trap was collected and eluted with 150 \u00b5l of dichloromethane in a fume hood into a 2-mL GC vial containing a 250 \u00b5l glass insert with polymer feet. The solvent was gently pushed through the volatile collection trap with N2 gas. At the end of collecting all the samples, 1 \u00b5l of an internal standard, tetradecane (190.5 ng), was added to each of the samples. The samples were then all capped with a magnetic screw top lid and secured with PTFE tape before being placed in a freezer at -20 \u2103 until they could be run. All headspace samples were collected within 5 weeks. After each replication, the headspace collection containers were all washed with methanol and then hexane. VCTs were rinsed in triplicate with dichloromethane. A total of at least n = 5 replicates were tested for each treatment.
Gas Chromatography Coupled with Mass Spectrometry
All headspace collection sample extracts were run on an Agilent 7890B gas chromatograph (GC) equipped with an Agilent Durabond HP-5 column (30 m length, 0.250 mm diameter and 0.25 \u03bcm film thickness) with He as the carrier gas at a constant 1.2 mL/min flow and 40 cm/s velocity. The GC was coupled with a single-quadrupole Agilent 5997B mass spectrometer (MS). The compounds were separated by auto-injecting 1 \u03bcl of each sample under splitless into the GC\u2013MS at room temperature (approximately 23 \u00b0C). The flow rate was 18 ml/min. The GC program consisted of 40 \u00b0C for 1 min followed by 10 \u00b0C/min increases to 300 \u00b0C and then held for 26.5 min. After a solvent delay of 3 min, mass ranges between 50 and 550 atomic mass units were scanned. Compounds were tentatively identified by comparison of spectral data with those from the NIST 14 library and by GC retention index. The samples were normalized according to the following formula: (Pksam \u2013 Pkmin)/(Pkmax \u2013 Pkmin), where Pksam is the peak area from the sample, Pkmin is the global minimum peak area, and Pkmax is the global max peak area.
Electroantennography of E. giganteana
All electroantennogram (EAG) recordings of E. giganteana were taken from 19:00 to 23:00 which corresponded to the peak activity period of E. giganteana based on prior literature (Ruiz et al. 2022). Prior to recordings, the machine and software were powered on and given 30 min to warm up. Only field-captured moths within ...","distribution_titles":["scribner_headspace_volatiles_eucosma_2024.csv","Eucosma_EAD .csv","Combined flight mill data1.csv","Trapping_combined2024.csv","beta_myrcene_NIST_mass_spectra.csv","beta_myrcene_silphium_sample.csv","beta_myrcene_std_sample.csv","beta_phellandrene_NIST_mass_spectra.csv","beta_phellandrene_sample_silphium.csv","beta_phellandrene_std_sample.csv","beta_pinene_NIST_extracted_mass_spectrum.csv","beta_pinene_sample_silphium.csv","beta_pinene_std_sample.csv","camphene_in_silphium_sample_mass_spectrum.csv","camphene_NIST_mass_spectra.csv","camphene_standard_sample.csv","D_limonene_NIST_mass_spectra.csv","D_limonene_silphium_sample.csv","D_limonene_std_sample.csv","Hazel Amalgamated Script.R","README Scribner et al.docx"],"harvest_record":"https://catalog.data.gov/harvest_record/4194b55a-32ce-4785-8de6-4ea832ad9600","harvest_record_raw":"https://catalog.data.gov/harvest_record/4194b55a-32ce-4785-8de6-4ea832ad9600/raw","has_download":true,"has_spatial":false,"identifier":"10.15482/USDA.ADC/28055111.v2","keyword":["ars","attract-and-kill","behavior","behavioral ecology","behaviorally-based management","cgahr","cup plant","eag","eucosma giganteana","flight mill","giant eucosma moth","insect behavior","insect flight","integrated pest management","kansas","lepidoptera","manhattan, ks","mating disruption","monitoring","pest","physiology","prairie","semiochemicals","silphium","silphium integrifolium","the land institute","tortricidae","trapping","usda"],"last_harvested_date":"2026-09-30T21:32:30.747498","organization":{"aliases":["dept"],"code_repo_exempt":false,"code_repo_url":null,"description":null,"id":"352b4532-793d-4075-a03f-05b778a3c43a","logo":"https://raw.githubusercontent.com/GSA/logo/refs/heads/master/usda.png","name":"Department of Agriculture","organization_type":"Federal Government","slug":"usda"},"parent_identifier":null,"popularity":2,"publisher":"Agricultural Research Service","slug":"data-from-behavioral-and-physiological-response-of-ieucosma-giganteana-ito-semiochemicals-","spatial_centroid":null,"spatial_shape":null,"theme":[],"title":"Data from: Behavioral and physiological response of Eucosma giganteana to semiochemicals from conspecifics and Silphium integrifolium","type":"dataset"},{"_score":54.310665,"_sort":[1790803890126,54.310665,2,"627746d6-1a5f-43bc-8933-06d33a7bf3b5"],"dcat":{"@type":"dcat:Dataset","accessLevel":"public","bureauCode":["005:18"],"contactPoint":{"fn":"McGranahan, Devan, A.","hasEmail":"mailto:Devan.McGranahan@usda.gov"},"description":"
Overview
Fire increasingly conflicts with the built environment. The Wildland-Urban Interface (WUI) describes areas where vegetation near the built environment increases wildfire hazard. In the United States, attention concentrates on WUI in forested areas, but human populations are extending into rangelands. The combination of WUI expansion and woody plant encroachment might present novel challenges to wildfire management, especially given the rural nature of rangelands in the US, which extends the response time of emergency services. We use publicly available data to describe the abundance, distribution, type, and overall wildfire risk in rural rangelands. Most of the WUI in the US Interior West (54%) occurs in rangeland: The majority of the US Interior West is rangeland and 4.3% of that\u2014over 1 million km2 \u2014is WUI. Most WUI is rural: 59% is further than 10 km from town and Tribal areas are even more remote. Rangeland WUI is approximately twice as likely to be degraded by woody encroachment than non-WUI rangeland, suggesting that conventional fire suppression tactics for rangeland fuels might be insufficient or unsafe. Greater awareness of rural rangeland WUI might help leverage community-level adaptive capacity against the novel challenges of protecting lives and property beyond urban/peri-urban zones.
Files included
These files include summarized data and R script used to create the analysis described above.
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Fire increasingly conflicts with the built environment. The Wildland-Urban Interface (WUI) describes areas where vegetation near the built environment increases wildfire hazard. In the United States, attention concentrates on WUI in forested areas, but human populations are extending into rangelands. The combination of WUI expansion and woody plant encroachment might present novel challenges to wildfire management, especially given the rural nature of rangelands in the US, which extends the response time of emergency services. We use publicly available data to describe the abundance, distribution, type, and overall wildfire risk in rural rangelands. Most of the WUI in the US Interior West (54%) occurs in rangeland: The majority of the US Interior West is rangeland and 4.3% of that\u2014over 1 million km2 \u2014is WUI. Most WUI is rural: 59% is further than 10 km from town and Tribal areas are even more remote. Rangeland WUI is approximately twice as likely to be degraded by woody encroachment than non-WUI rangeland, suggesting that conventional fire suppression tactics for rangeland fuels might be insufficient or unsafe. Greater awareness of rural rangeland WUI might help leverage community-level adaptive capacity against the novel challenges of protecting lives and property beyond urban/peri-urban zones.
Files included
These files include summarized data and R script used to create the analysis described above.
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Data sheets include a column titled \"Rep\" indicating either experimental replication or repeated observation within an experimental unit, \"Week\" for time point (week 1-8), \"Pen\" representing an experimental unit within each replication, or group of birds randomly assigned to a treatment, and \"Trmt\" to indicate one of the four treatments:
This dataset includes all raw data (.csv) and R software code (.Rmd notebook and rendered .html output) needed to reproduce the results presented in the associated manuscript. All exploratory data visualizations and tables of statistical model results are included. The associated manuscript presents the results of a feeding trial with four treatments: layer hens were fed a control diet or diets supplemented with high-oleic peanuts, peanut skin, or oleic acid. Response variables were measured over the course of eight weeks. Generalized linear mixed models include fixed effects of treatment, time, and their interaction, and repeated measures error structure where appropriate. Body weight was significantly greater than the control in the peanut skin and whole peanut treatment. Statistically significant effects of treatment were found for other responses, but overall the results suggest little adverse effects of peanut supplementation on layer performance or egg quality.
Data sheets include a column titled \"Rep\" indicating either experimental replication or repeated observation within an experimental unit, \"Week\" for time point (week 1-8), \"Pen\" representing an experimental unit within each replication, or group of birds randomly assigned to a treatment, and \"Trmt\" to indicate one of the four treatments:
[Note 2026-08-31: File \"README_Tribolium_Density_MS_ADDENDUM.txt\" was added to dataset.]
[Note 2026-08-12: Files \"Supplemental Table 1_adult number g larvae.xlsx\", \"Supplemental Table 2_flour loss glm.xlsx\", \"Supplemental Table 3_reproductive output contrasts.csv\", \"Supplemental Table 4_Pairwise_G-Test_DFU_adults.xlsx\", and \"Supplemental Table 5_VOC peak table.csv\" were added to dataset.]
Tribolium castaneum, the red flour beetle, is a key pest of cereal grains and products that routinely infests food processing facilities. Such facilities represent dynamic environments comprising patches of resources of variable size and quality. To understand the influence of resource availability, insect density, and initial life stage on population regulation in T. castaneum, this study assessed the carrying capacity and population growth rates of T. castaneum populations kept for 20 weeks in a closed environment on four different amounts of diet at four starting population levels, then compared T. castaneum attraction to, reproductive output on, and the volatile profiles of previously-infested (e.g., conditioned) flour. Resource availability (e.g. the amount of flour) interacted with founding population density and life stage to influence T. castaneum population dynamics. In resource-limited patches, carrying capacity estimates were similar across founding densities, but the effect of founding population density on carrying capacity increased with flour availability. The opposite was observed for population growth rate, which tended to be more variable for small patches but stabilized as resource availability increased. Interestingly, both effects were reduced for populations founded as larvae compared to those founded as adults. The volatile profile of conditioned flour was also influenced by the interaction of patch size, density, and life stage. The relative abundance of 1-pentadecene and benzoquinones tended to be reduced in the volatile profiles of large patches, whereas 4,8-dimethyldecanal comprised a higher proportion of the total volatile emissions. Conditioned flour from large patches tended to be more attractive to T. castaneum adults, although this effect decreased as founding density increased. By contrast, when populations were founded as larvae, the volatile profiles of T. castaneum attraction to, and T. castaneum fecundity on conditioned flours were similar. These findings expand our understanding of how resource limitation and density-dependent effects influence T. castaneum population regulation and behavior, with implications for long-term trap monitoring and population thresholds in stored products.
Supplemental Tables are included in the data files and referenced in the published manuscript.
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[Note 2026-08-12: Files \"Supplemental Table 1_adult number g larvae.xlsx\", \"Supplemental Table 2_flour loss glm.xlsx\", \"Supplemental Table 3_reproductive output contrasts.csv\", \"Supplemental Table 4_Pairwise_G-Test_DFU_adults.xlsx\", and \"Supplemental Table 5_VOC peak table.csv\" were added to dataset.]
Tribolium castaneum, the red flour beetle, is a key pest of cereal grains and products that routinely infests food processing facilities. Such facilities represent dynamic environments comprising patches of resources of variable size and quality. To understand the influence of resource availability, insect density, and initial life stage on population regulation in T. castaneum, this study assessed the carrying capacity and population growth rates of T. castaneum populations kept for 20 weeks in a closed environment on four different amounts of diet at four starting population levels, then compared T. castaneum attraction to, reproductive output on, and the volatile profiles of previously-infested (e.g., conditioned) flour. Resource availability (e.g. the amount of flour) interacted with founding population density and life stage to influence T. castaneum population dynamics. In resource-limited patches, carrying capacity estimates were similar across founding densities, but the effect of founding population density on carrying capacity increased with flour availability. The opposite was observed for population growth rate, which tended to be more variable for small patches but stabilized as resource availability increased. Interestingly, both effects were reduced for populations founded as larvae compared to those founded as adults. The volatile profile of conditioned flour was also influenced by the interaction of patch size, density, and life stage. The relative abundance of 1-pentadecene and benzoquinones tended to be reduced in the volatile profiles of large patches, whereas 4,8-dimethyldecanal comprised a higher proportion of the total volatile emissions. Conditioned flour from large patches tended to be more attractive to T. castaneum adults, although this effect decreased as founding density increased. By contrast, when populations were founded as larvae, the volatile profiles of T. castaneum attraction to, and T. castaneum fecundity on conditioned flours were similar. These findings expand our understanding of how resource limitation and density-dependent effects influence T. castaneum population regulation and behavior, with implications for long-term trap monitoring and population thresholds in stored products.
Supplemental Tables are included in the data files and referenced in the published manuscript.
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NOTICE
This data examines the impact of genotype, environment, and crop management practices on oat (Avena sativa L.) grain yield, milling quality, and nutritional content over three growing seasons (2021-2023). Data were collected at the USDA-ARS-managed Eastern South Dakota Soil and Water Research Farm in Brookings, South Dakota. Treatments included three oat varieties with differing plant architectures, planted at three populations, and co-established (or not) with a medium red clover (Trifolium pratense L.) green manure. Data include weather and oat performance - the latter of which includes biomass and grain yield, grain milling quality, and grain nutrient content. Code to analyze the data and produce figures in the peer-reviewed manuscript is also included. Please see the Metadata for column descriptions.
NOTICE
[NOTE 2026-09-04: Data files revised]
Crested wheatgrass is widely, and historically, seeded across sagebrush steppe rangelands to increase perennial cover and compete with invasive annual grasses post-fire, however, outcomes vary, likely due to complex combinations of site environmental variables and weather. This study examines variation in vegetation characteristics in post-fire areas associated with crested wheatgrass seeding, and environmental variables, in the northern Great Basin. We selected 124 treatments on Bureau of Land Management lands seeded post-fire with crested wheatgrass over the past two decades in two ecoregions (Snake River Plain, Northern Basin and Range). We selected target 30 m pixels and matched them to 150 reference pixels based on environmental similarity and burn severity within 0.3-3.5 km radius in unseeded areas. We compared change overtime post-seeding in the target pixels to reference pixels with a synthetic control method, comparing pre-fire differences in vegetation between target and reference pixels to post-seeding outcomes. We extracted effect sizes at 5 and 10 years post-fire. We tested for the effects of fire severity, elevation, sand content, and spring precipitation in two time points on seeding effects for each type of cover.
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Beach seine sampling was employed in all intertidal habitats on both the Admiralty Inlet and Penn Cove shorelines. A total of 31 locations were sampled, resulting in documentation of 28 species. The habitats in both of these regions include sand, gravel, cobble, and boulder beaches. Fish community composition in both regions was dominated by juvenile salmon, particularly chum salmon smolts, however the communities in each region were significantly different from each other. 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The program also encourages the economic and financial health of agriculture, horticulture, and forestry through protection from non-farm development and other negative impacts on properly managed farms.\u00a0All parcels are private, agricultural properties and not open to the public for access.This page provides data for the Tree and Shade Canopy performance measure.
Sustainable growth for the City of Tempe is influenced by many factors, including the development and maintenance of our tree canopy. An adequate canopy provides shade, cooling, reduces water evaporation, and is an indication of a healthy and well-maintained environment. As per the Urban Forestry Master Plan, this data represents tree canopy in parks, street right-of-ways, and municipally owned and managed facilities.
The performance measure dashboard is available at 4.11 Tree Coverage
Additional Information
This page provides data for the Tree and Shade Canopy performance measure.
Sustainable growth for the City of Tempe is influenced by many factors, including the development and maintenance of our tree canopy. An adequate canopy provides shade, cooling, reduces water evaporation, and is an indication of a healthy and well-maintained environment. As per the Urban Forestry Master Plan, this data represents tree canopy in parks, street right-of-ways, and municipally owned and managed facilities.
The performance measure dashboard is available at 4.11 Tree Coverage
Additional Information
This page provides data for the Facilities Conditions Index performance measure.
Regular assessments of the condition of city facilities are important. An outcome of the assessments is the Facilities Condition Index (FCI). This index rates facilities based on their current condition. The FCI indicates the ratio of assets repair costs to the replacement value of the entire building. The lower the FCI ratio, the better the condition of the building.
This dataset provides the current FCI value for each city-owned facility. The FCI is generated quarterly for individual facilities and then calculated for the City overall.
The performance measure dashboard is available at 4.14 Facilities Conditions Index
Additional Information
This page provides data for the Facilities Conditions Index performance measure.
Regular assessments of the condition of city facilities are important. An outcome of the assessments is the Facilities Condition Index (FCI). This index rates facilities based on their current condition. The FCI indicates the ratio of assets repair costs to the replacement value of the entire building. The lower the FCI ratio, the better the condition of the building.
This dataset provides the current FCI value for each city-owned facility. The FCI is generated quarterly for individual facilities and then calculated for the City overall.
The performance measure dashboard is available at 4.14 Facilities Conditions Index
Additional Information
The Community Development Process Survey is an evaluation tool showing the City Council and the community our customer satisfaction levels during the course of processing an application. By collecting the survey responses, we can identify areas of satisfaction as well as steps for improvement. This dataset comes from collecting survey responses at each key step in the planning entitlement, plan review, permitting, and inspection processes.
The performance measure dashboard is available at 4.20 Community Development Process Survey
Additional Information
The Community Development Process Survey is an evaluation tool showing the City Council and the community our customer satisfaction levels during the course of processing an application. By collecting the survey responses, we can identify areas of satisfaction as well as steps for improvement. This dataset comes from collecting survey responses at each key step in the planning entitlement, plan review, permitting, and inspection processes.
The performance measure dashboard is available at 4.20 Community Development Process Survey
Additional Information