Abstract
The use of preemergence (PRE) herbicides may result in decreased early season cotton ( Gossypium hirsutum L.) growth, which may exacerbate injury from thrips. Studies were conducted in 2013 and 2014 at the Black Belt Branch Experiment Station near Brooksville, MS; at the R.R. Foil Plant Science Research Center near Starkville, MS; and at the Delta Research and Extension Center in Stoneville, MS, to evaluate the impact of PRE herbicides and insecticide seed treatments on thrips infestations in cotton. DP 0912 B2RF was treated with thiamethoxam + fungicide, imidacloprid + fungicide, and fungicide only. All cotton seed, including the fungicide‐only treatment, were base treated with metalaxyl, pyraclostrobin, and fluxapyroxad. Preemergence herbicides included fluometuron at 1.12 kg a.i. ha −1 , diuron at 1.12 kg a.i. ha −1 , fomesafen at 0.28 kg a.i. ha −1 , S ‐metolachlor at 1.07 kg a.i. ha −1 , and S ‐metolachlor at 1.07 kg a.i. ha −1 + fluometuron at 1.12 kg a.i. ha −1 . An untreated check was included for comparison purposes. Cotton injury from thrips was less prevalent on cotton grown from seed treated with imidacloprid. Immature thrips counts at the 4‐leaf cotton growth stage were greatest on cotton grown from seed treated with thiamethoxam, which had 136 thrips per five plants. Preemergence herbicides did not impact thrips infestations at the 2‐ or 4‐leaf cotton growth stage. No significant differences in cotton lint yield were observed due to PRE herbicide application. Seed treatments that included imidacloprid resulted in 80 kg ha −1 more lint than cotton grown from seed treated with thiamethoxam. Core Ideas Cotton seed treated with imidacloprid resulted in greater cotton yields compared with cotton grown from seed treated with thiamethoxam. Preemergence herbicide application had no impact on cotton yield. Based on these data, growers are encouraged to utilize a preemerence herbicide of their choice to manage Palmer amaranth, and imidacloprid‐based seed treatments are recommended.
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Claims 7
Claim · model-written summary
Imidacloprid seed treatment reduced cotton injury from thrips.
- Taxon
- cotton
Gossypium hirsutumt0 - Treatment
- seed treated with imidaclopride0
- Outcome
- Cotton injury from thripse0
- Direction
- less prevalente0
ThripsNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cotton injury from thrips was less prevalent on cotton grown from seed treated with imidacloprid.”
t0“Cotton”
Claim · model-written summary
Thiamethoxam seed treatment had the greatest immature thrips count at the 4-leaf stage, 136 per five plants.
- Taxon
- cottonGossypium hirsutumt0
- Organ / stage
- 4‐leaf cotton growth stagee0
- Treatment
- seed treated with thiamethoxame0
- Outcome
- Immature thrips countse0
- Direction
- greateste0
- Value
- 136 thrips per five plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Immature thrips counts at the 4‐leaf cotton growth stage were greatest on cotton grown from seed treated with thiamethoxam, which had 136 thrips per five plants.”
t0“Cotton”
Claim · model-written summary
Preemergence herbicides did not affect thrips infestation at the 2-leaf cotton stage.
- Taxon
- cottonGossypium hirsutumt0
- Organ / stage
- 2‐ or 4‐leaf cotton growth stagee0
- Treatment
- Preemergence herbicidese0
- Outcome
- thrips infestationse0
- Direction
- did not impacte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Preemergence herbicides did not impact thrips infestations at the 2‐ or 4‐leaf cotton growth stage.”
t0“Cotton”
Claim · model-written summary
Preemergence herbicide application produced no significant difference in cotton lint yield.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- PRE herbicide applicatione0
- Outcome
- cotton lint yielde0
- Direction
- No significant differencese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No significant differences in cotton lint yield were observed due to PRE herbicide application.”
t0“Cotton”
Claim · model-written summary
Imidacloprid seed treatment yielded 80 kg ha −1 more cotton lint than thiamethoxam treatment.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- Seed treatments that included imidaclopride0
- Outcome
- linte0
- Direction
- moree0
- Value
- 80 kg ha −1e0
- Comparator
- seed treated with thiamethoxame0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed treatments that included imidacloprid resulted in 80 kg ha −1 more lint than cotton grown from seed treated with thiamethoxam.”
t0“Cotton”
Claim · model-written summary
The authors recommend choosing a preemergence herbicide to manage Palmer amaranth.
- Taxon
- cottonGossypium hirsutumt0
- Interactor
- Palmer amaranthe0weed
- Outcome
- utilize a preemerence herbicide of their choicee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“growers are encouraged to utilize a preemerence herbicide of their choice to manage Palmer amaranth”
t0“Cotton”
Claim · model-written summary
The authors recommend imidacloprid-based seed treatments.
- Taxon
- cottonGossypium hirsutumt0
- Outcome
- imidacloprid‐based seed treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“imidacloprid‐based seed treatments are recommended.”
t0“Cotton”
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imidacloprid · Thrips · Gossypium hirsutum (cotton)Results agree
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- positive
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1 paper in the same direction as this paper
- no effect
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.