Abstract
Field experiments were conducted in 1997–1999 in Washington Co., NC, to examine how cotton, Gossypium hirsutum, is affected by thrips species composition and abundance, environmental factors, and insecticide applications. Populations of adult and juvenile thrips were monitored in seedling cotton treated with insecticide applications of either imidacloprid as a seed treatment, acephate as a foliar spray, or aldicarb applied in-furrow. The number of plants per 3.05 row-m, location of the first fruiting branch, number of open bolls per 1.52 row-m, yields, accumulated degree-d 60′s (DD60′s), and accumulated rainfall were recorded each year the studies were conducted. Aldicarb and acephate provided better thrips control than did imidacloprid in all 3 yrs. Thrips species ratios differed among years. In 1997, the aldicarb treatment resulted in a better “earliness profile” (lower fruit set and more early opening bolls) than either acephate or imidacloprid, while in 1998 and 1999 there were few differences in these plant parameters. In 1997, all insecticide treatments resulted in statistically higher yields compared with the untreated check. Accumulated DD60′s were consistently higher in 1998 and 1999 than in 1997 after the first thrips sampling date. Cumulative rainfall appeared to be inversely associated with juvenile thrips populations.
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Claims 8
Claim · model-written summary
Aldicarb controlled thrips better than imidacloprid in all three years.
- Taxon
- Cotton
Gossypium hirsutumt0 - Treatment
- Aldicarbe0
- Outcome
- thrips controle0
- Direction
- bettere0
- Comparator
- imidaclopride0
ThripsOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Aldicarb and acephate provided better thrips control than did imidacloprid in all 3 yrs.”
t0“Cotton”
Claim · model-written summary
Acephate controlled thrips better than imidacloprid in all three years.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- acephatee0
- Outcome
- thrips controle0
- Direction
- bettere0
- Comparator
- imidaclopride0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Aldicarb and acephate provided better thrips control than did imidacloprid in all 3 yrs.”
t0“Cotton”
Claim · model-written summary
Thrips species ratios differed among years.
- Taxon
- cottonGossypium hirsutume1
- Outcome
- Thrips species ratiose0
- Direction
- differede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Thrips species ratios differed among years.”
e1“cotton, Gossypium hirsutum, is affected by thrips species composition”
Claim · model-written summary
In 1997, aldicarb gave cotton a better earliness profile than acephate.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- aldicarb treatmente0
- Outcome
- earliness profilee0
- Direction
- bettere0
- Qualifier
- lower fruit set and more early opening bollse0
- Comparator
- acephatee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In 1997, the aldicarb treatment resulted in a better “earliness profile” (lower fruit set and more early opening bolls) than either acephate or imidacloprid”
t0“Cotton”
Claim · model-written summary
In 1997, aldicarb gave cotton a better earliness profile than imidacloprid.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- aldicarb treatmente0
- Outcome
- earliness profilee0
- Direction
- bettere0
- Comparator
- imidaclopride0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In 1997, the aldicarb treatment resulted in a better “earliness profile” (lower fruit set and more early opening bolls) than either acephate or imidacloprid”
t0“Cotton”
Claim · model-written summary
In 1998 and 1999, the insecticide treatments showed few differences in cotton earliness parameters.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- aldicarb treatmente1
- Outcome
- plant parameterse0
- Direction
- few differencese0
- Qualifier
- 1998 and 1999e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“while in 1998 and 1999 there were few differences in these plant parameters.”
e1“aldicarb treatment resulted in a better “earliness profile””
t0“Cotton”
Claim · model-written summary
In 1997, insecticide treatments produced statistically higher cotton yields than untreated plants.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- all insecticide treatmentse0
- Outcome
- yieldse0
- Direction
- highere0
- Comparator
- untreated checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In 1997, all insecticide treatments resulted in statistically higher yields compared with the untreated check.”
t0“Cotton”
Claim · model-written summary
Cumulative rainfall appeared inversely associated with juvenile thrips populations in cotton fields.
- Taxon
- CottonGossypium hirsutumt0
- Outcome
- juvenile thrips populationse0
- Direction
- inversely associatede0
Not reportedSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cumulative rainfall appeared to be inversely associated with juvenile thrips populations.”
t0“Cotton”
The same questions in other papers
aldicarb · phenology · Gossypium hirsutum (cotton)Results agree
1 paper in the same direction as this paper
- positive
aldicarb · Thrips · Gossypium hirsutum (cotton)Results agree
9 papers in the same direction as this paper
- positive
- positive
- positive
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See all 10 papers →acephate · Thrips · Gossypium hirsutum (cotton)Results agree
10 papers in the same direction as this paper
- positive
- positive
- positive
7 papers more in this group
See all 11 papers →insecticide · yield · Gossypium hirsutum (cotton)Results differ
58 papers in the same direction as this paper · 16 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- no effect
- negative
72 papers more in this group
See all 76 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.