Abstract
Thrips, primarily Frankliniella spp., can damage cotton (Gossypium hirsutum L.) seedlings. The objectives of this study were to determine the effect of winter cover crops on thrips populations in cotton and to assess the yield and fiber quality response to cover crops and N fertilizer rate with and without thrips protection. A field experiment was conducted on a Bonneau loamy sand soil (loamy, siliceous, thermic, Arenic Paleudult) from 1996 through 1998. Treatments were cover crops, N fertilizer rate, and aldicarb rate. Cover crops were rye (Secale cereale L.), crimson clover (Trifolium incarnatum L.), a clover + rye mixture, and winter fallow. Nitrogen levels were 0, 78, and 112 kg N ha−1. Aldicarb levels were 0 and 1.18 kg a.i. ha−1. Aldicarb reduced thrips populations. For plots without aldicarb, differences among winter covers occurred at one sampling time in 1998 when fallow had more thrips than the other three winter covers. Aldicarb increased yield by 9% in 1996, 48% in 1997, and 35% in 1998. In 1997 and 1998, yield increases with aldicarb were greater in the winter cover and N treatment combinations that provided higher total N to the crop. The 0 kg N ha−1 rate tended to have lower yield, fiber length, length uniformity, fiber strength, micronaire, and Hunter's +b than the other two N rates. Aldicarb generally increased the value of these fiber properties each year. Including agronomic practices in assessing control measures may improve integrated pest management strategies for thrips in conservation tillage systems.
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Claims 10
Claim · model-written summary
Aldicarb reduced thrips populations.
- Taxon
- cotton (Gossypium hirsutum L.)
Gossypium hirsutumt0 - Treatment
- Aldicarbe0
- Outcome
- thrips populationse0
- Direction
- reducede0
ThripsNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Aldicarb reduced thrips populations”
t0“Thrips, primarily Frankliniella spp., can damage cotton (Gossypium hirsutum L.) seedlings”
Claim · model-written summary
Without aldicarb, fallow plots had more thrips than winter cover plots at one 1998 sampling.
- Taxon
- cotton (Gossypium hirsutum L.)Gossypium hirsutumt0
- Treatment
- fallowe0
- Outcome
- thripse0
- Direction
- moree0
- Qualifier
- one sampling time in 1998e0
- Comparator
- the other three winter coverse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For plots without aldicarb, differences among winter covers occurred at one sampling time in 1998 when fallow had more thrips than the other three winter covers”
t0“Thrips, primarily Frankliniella spp., can damage cotton (Gossypium hirsutum L.) seedlings”
Claim · model-written summary
Aldicarb increased cotton yield by 9% in 1996.
- Taxon
- cotton (Gossypium hirsutum L.)Gossypium hirsutumt0
- Treatment
- Aldicarbe0
- Outcome
- yielde0
- Direction
- increasede0
- Value
- 9%e0
- Qualifier
- 1996e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Aldicarb increased yield by 9% in 1996, 48% in 1997, and 35% in 1998”
t0“Thrips, primarily Frankliniella spp., can damage cotton (Gossypium hirsutum L.) seedlings”
Claim · model-written summary
Aldicarb increased cotton yield by 48% in 1997.
- Taxon
- cotton (Gossypium hirsutum L.)Gossypium hirsutumt0
- Treatment
- Aldicarbe0
- Outcome
- yielde0
- Direction
- increasede0
- Value
- 48%e0
- Qualifier
- 1997e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Aldicarb increased yield by 9% in 1996, 48% in 1997, and 35% in 1998”
t0“Thrips, primarily Frankliniella spp., can damage cotton (Gossypium hirsutum L.) seedlings”
Claim · model-written summary
Aldicarb increased cotton yield by 35% in 1998.
- Taxon
- cotton (Gossypium hirsutum L.)Gossypium hirsutumt0
- Treatment
- Aldicarbe0
- Outcome
- yielde0
- Direction
- increasede0
- Value
- 35%e0
- Qualifier
- 1998e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Aldicarb increased yield by 9% in 1996, 48% in 1997, and 35% in 1998”
t0“Thrips, primarily Frankliniella spp., can damage cotton (Gossypium hirsutum L.) seedlings”
Claim · model-written summary
Aldicarb yield increases were greater where winter cover and nitrogen combinations provided higher total N.
- Taxon
- cotton (Gossypium hirsutum L.)Gossypium hirsutumt0
- Treatment
- aldicarbe0
- Outcome
- yield increasese0
- Direction
- greatere0
- Qualifier
- winter cover and N treatment combinations that provided higher total N to the crope0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In 1997 and 1998, yield increases with aldicarb were greater in the winter cover and N treatment combinations that provided higher total N to the crop”
t0“Thrips, primarily Frankliniella spp., can damage cotton (Gossypium hirsutum L.) seedlings”
Claim · model-written summary
Zero nitrogen tended to lower yield and five fiber properties compared with higher rates.
- Taxon
- cotton (Gossypium hirsutum L.)Gossypium hirsutumt0
- Treatment
- 0 kg N ha−1e0
- Outcome
- yield, fiber length, length uniformitye0
- Direction
- lowere0
- Comparator
- the other two N ratese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 0 kg N ha−1 rate tended to have lower yield, fiber length, length uniformity, fiber strength, micronaire, and Hunter's +b than the other two N rates”
t0“Thrips, primarily Frankliniella spp., can damage cotton (Gossypium hirsutum L.) seedlings”
Claim · model-written summary
Zero nitrogen tended to lower fiber strength, micronaire and Hunter’s +b.
- Taxon
- cotton (Gossypium hirsutum L.)Gossypium hirsutumt0
- Treatment
- 0 kg N ha−1e0
- Outcome
- fiber strength, micronaire, and Hunter's +be0
- Direction
- lowere0
- Comparator
- the other two N ratese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 0 kg N ha−1 rate tended to have lower yield, fiber length, length uniformity, fiber strength, micronaire, and Hunter's +b than the other two N rates”
t0“Thrips, primarily Frankliniella spp., can damage cotton (Gossypium hirsutum L.) seedlings”
Claim · model-written summary
Aldicarb generally increased fiber properties each year.
- Taxon
- cotton (Gossypium hirsutum L.)Gossypium hirsutumt0
- Treatment
- Aldicarbe0
- Outcome
- fiber propertiese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Aldicarb generally increased the value of these fiber properties each year”
t0“Thrips, primarily Frankliniella spp., can damage cotton (Gossypium hirsutum L.) seedlings”
Claim · model-written summary
The authors suggest accounting for agronomic practices when assessing thrips control.
- Taxon
- cotton (Gossypium hirsutum L.)Gossypium hirsutumt0
- Outcome
- Including agronomic practices in assessing control measurese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Including agronomic practices in assessing control measures may improve integrated pest management strategies for thrips in conservation tillage systems”
t0“Thrips, primarily Frankliniella spp., can damage cotton (Gossypium hirsutum L.) seedlings”
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See all 103 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.