Abstract
Abstract Thrips (Thysanoptera: Thripidae) are consistent pests in cotton ( Gossypium hirsutum ) production during the early season. In addition to cultural and chemical practices for thrips management, a new Bt ( Bacillus thuringiensis ) trait called ThryvOn is available for thrips management. However, research investigating crop development and yield response to this new technology is limited. Therefore, a field trial was implemented in Tifton, GA, USA, to evaluate thrips prevalence, plant injury, crop development, and lint yield in response to cultivar (with or without ThryvOn) and insecticide treatment under high thrips pressure. ThryvOn cotton exhibited lower thrips densities and plant injury due to thrips than non‐ThryvOn cotton, regardless of insecticide treatment. When interactions between cultivar and insecticide were observed, insecticide treatment reduced pest pressure and positively impacted plant growth to a larger extent in non‐ThryvOn cotton compared to ThryvOn cotton. Similar observations were made for radiation capture by the crop canopy, although significant effects were only observed on one sample date in a single growing season. Lint yields were not affected by cultivar or insecticide treatment in either year, despite significant plant injury in the early season. The data from this study further highlight that newly available ThryvOn varieties offer significant thrips injury protection relative to non‐ThryvOn varieties, decreasing the need for insecticide application. Thrips injury and reductions in plant growth in the early season may not necessarily translate to yield loss if radiation capture by the crop canopy is eventually maximized and there is sufficient growing season length available to mature the crop.
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Claims 9
Claim · model-written summary
ThryvOn cotton had lower thrips densities than non-ThryvOn cotton regardless of insecticide.
- Taxon
- cotton
Gossypium hirsutume0 - Material
- ThryvOn cottone0
- Treatment
- ThryvOne0
- Outcome
- thrips densitiese0
- Direction
- lowere0
- Qualifier
- regardless of insecticide treatmente0
- Comparator
- non‐ThryvOn cottone0
ThripsOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ThryvOn cotton exhibited lower thrips densities and plant injury due to thrips than non‐ThryvOn cotton, regardless of insecticide treatment.”
Claim · model-written summary
ThryvOn cotton had lower thrips injury than non-ThryvOn cotton regardless of insecticide.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- ThryvOne0
- Outcome
- plant injury due to thripse0
- Direction
- lowere0
- Qualifier
- regardless of insecticide treatmente0
- Comparator
- non‐ThryvOn cottone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ThryvOn cotton exhibited lower thrips densities and plant injury due to thrips than non‐ThryvOn cotton, regardless of insecticide treatment.”
Claim · model-written summary
Insecticide reduced pest pressure more in non-ThryvOn than ThryvOn cotton.
- Taxon
- cottonGossypium hirsutume0
- Material
- non‐ThryvOn cottone0
- Treatment
- insecticide treatmente0
- Outcome
- pest pressuree0
- Direction
- reducede0
- Comparator
- ThryvOn cottone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“insecticide treatment reduced pest pressure and positively impacted plant growth to a larger extent in non‐ThryvOn cotton compared to ThryvOn cotton”
e1“practices for thrips management”
Claim · model-written summary
Insecticide improved plant growth more in non-ThryvOn than ThryvOn cotton.
- Taxon
- cottonGossypium hirsutume0
- Material
- non‐ThryvOn cottone0
- Treatment
- insecticide treatmente0
- Outcome
- plant growthe0
- Direction
- positively impactede0
- Comparator
- ThryvOn cottone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“insecticide treatment reduced pest pressure and positively impacted plant growth to a larger extent in non‐ThryvOn cotton compared to ThryvOn cotton”
Claim · model-written summary
Radiation capture showed similar interactions but significant effects occurred on only one sample date in one season.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- insecticide treatmente1
- Outcome
- radiation capture by the crop canopye0
- Qualifier
- only observed on one sample date in a single growing seasone0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Similar observations were made for radiation capture by the crop canopy, although significant effects were only observed on one sample date in a single growing season.”
t0“cotton”
e1“cultivar (with or without ThryvOn) and insecticide treatment”
Claim · model-written summary
Cultivar did not affect lint yield in either year.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- cultivare0
- Outcome
- Lint yieldse0
- Direction
- not affectede0
- Qualifier
- in either yeare0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lint yields were not affected by cultivar or insecticide treatment in either year”
t0“cotton”
Claim · model-written summary
Insecticide did not affect lint yield in either year.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- insecticide treatmente0
- Outcome
- Lint yieldse0
- Direction
- not affectede0
- Qualifier
- in either yeare0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lint yields were not affected by cultivar or insecticide treatment in either year”
t0“cotton”
Claim · model-written summary
ThryvOn varieties reduce the need for insecticide application against thrips.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ThryvOn varieties offer significant thrips injury protection relative to non‐ThryvOn varieties, decreasing the need for insecticide application.”
Claim · model-written summary
Early thrips injury and growth reduction may not cause yield loss if canopy radiation capture and growing season length suffice.
- Taxon
- cottonGossypium hirsutumt0
- Outcome
- yield losse0
- Qualifier
- if radiation capture by the crop canopy is eventually maximized and there is sufficient growing season length available to mature the crope0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Thrips injury and reductions in plant growth in the early season may not necessarily translate to yield loss if radiation capture by the crop canopy is eventually maximized and there is sufficient growing season length available to mature the crop.”
t0“cotton”
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See all 25 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.