Paper · 1998 · UA Campus Repository (The University of Arizona)

Systemic Insecticide Applications at Planting and First Square in Bt Cotton for Early Season Insect Control - La Paz and Mohave Counties

Tim Knowles; Mike Keavy; Victor Wakimoto

5
claims
9
verbatim quotes
0
citations
2
research areas
—
Not open access

Abstract

Temik 15G (6 lbs/acre) and Thimet 20G (7.5 lbs/acre) granular insecticides were applied in furrow at planting and compared to an untreated check in two experiments in Parker Valley and Mohave Valley, AZ. At first square each of these main plots was split in half and either Temik 15G or DiSyston 8L was sidedressed to each subplot and compared to an untreated strip. Thrips and lygus counts were taken at weekly or biweekly intervals and plant response measured from the 2 or 3 leaf stage through layby. Under the thrips pressure experienced in these two experiments (0.5-1.5/plant), Temik and Thimet at planting provided similar and adequate protection from thrips for up to 7 weeks following application. Temik 15G sidressed at 14 lbs/acre at first square provided lygus bug control for up to 42 days following application under light lygus bug pressure (5-15/100 sweeps). Di- Syston 8L sidedressed at 1 qt/acre at first square provided lygus bug control for 35 days following application under moderate lygus bug pressure (15-20/100 sweeps). Under the conditions of this study, systemic insecticide applications at planting and first square did not increase cotton lint yields of insecticide treated Bt cotton plots, compared to the untreated control plots.

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Claims 5

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Temik at planting protected Bt cotton from thrips for up to 7 weeks.

Taxon
Bt Cottont0
Treatment
Temike0
Interactor
thripsThripse0pest
Outcome
protection from thripse0
Direction
adequatee0
Value
up to 7 weekse0
Qualifier
0.5-1.5/plante0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Thrips
Thrips · Interactor · picture of the genus (one of its species)Alton N. Sparks, Jr., University of Georgia, Bugwood.org · CC BY 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Under the thrips pressure experienced in these two experiments (0.5-1.5/plant), Temik and Thimet at planting provided similar and adequate protection from thrips for up to 7 weeks following application”

✓ located verbatim in the source · abstract, characters 504–705 · show in text ↑
t0

“Bt Cotton”

✓ located verbatim in the source · title, characters 66–75 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Thimet at planting protected Bt cotton from thrips for up to 7 weeks.

Taxon
Bt Cottont0
Treatment
Thimete0
Interactor
thripsThripse0pest
Outcome
protection from thripse0
Direction
adequatee0
Value
up to 7 weekse0
Qualifier
0.5-1.5/plante0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Thrips
Thrips · Interactor · picture of the genus (one of its species)Alton N. Sparks, Jr., University of Georgia, Bugwood.org · CC BY 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Under the thrips pressure experienced in these two experiments (0.5-1.5/plant), Temik and Thimet at planting provided similar and adequate protection from thrips for up to 7 weeks following application”

✓ located verbatim in the source · abstract, characters 504–705 · show in text ↑
t0

“Bt Cotton”

✓ located verbatim in the source · title, characters 66–75 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

First-square Temik controlled lygus bug for up to 42 days under light pressure.

Taxon
Bt Cottont0
Treatment
Temik 15G sidressed at 14 lbs/acre at first squaree0
Interactor
lygus bugLygus hesperuse0pest
Outcome
lygus bug controle0
Direction
controle0
Value
up to 42 dayse0
Qualifier
light lygus bug pressure (5-15/100 sweeps)e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lygus hesperus
Lygus hesperus · Interactorno rights reserved · CC0 · Wikimedia Commons ↗

Verbatim

e0

“Temik 15G sidressed at 14 lbs/acre at first square provided lygus bug control for up to 42 days following application under light lygus bug pressure (5-15/100 sweeps)”

✓ located verbatim in the source · abstract, characters 707–873 · show in text ↑
t0

“Bt Cotton”

✓ located verbatim in the source · title, characters 66–75 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

First-square Di-Syston controlled lygus bug for 35 days under moderate pressure.

Taxon
Bt Cottont0
Treatment
Di- Syston 8L sidedressed at 1 qt/acre at first squaree0
Interactor
lygus bugLygus hesperuse0pest
Outcome
lygus bug controle0
Direction
controle0
Value
35 dayse0
Qualifier
moderate lygus bug pressure (15-20/100 sweeps)e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lygus hesperus
Lygus hesperus · Interactorno rights reserved · CC0 · Wikimedia Commons ↗

Verbatim

e0

“Di- Syston 8L sidedressed at 1 qt/acre at first square provided lygus bug control for 35 days following application under moderate lygus bug pressure (15-20/100 sweeps)”

✓ located verbatim in the source · abstract, characters 875–1043 · show in text ↑
t0

“Bt Cotton”

✓ located verbatim in the source · title, characters 66–75 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Systemic insecticides at planting and first square did not increase Bt cotton lint yield versus untreated plots.

Taxon
Bt cottone0
Treatment
systemic insecticide applications at planting and first squaree0
Outcome
cotton lint yieldse0
Direction
did not increasee0
Comparator
untreated control plotse0

Verbatim

e0

“systemic insecticide applications at planting and first square did not increase cotton lint yields of insecticide treated Bt cotton plots, compared to the untreated control plots”

✓ located verbatim in the source · abstract, characters 1081–1259 · show in text ↑

phorate · Thrips · Gossypium hirsutum (cotton)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

insecticide · yield · Gossypium hirsutum (cotton)Results differ

76 papers: 59 positive, 17 negative or no effect

16 papers in the same direction as this paper · 59 in the opposite direction

  1. positive
  2. positive
    Combined applications increased for yield

    Influence of Flower Thrips on Fusarium Hardlock Severity · 2007 · compared with using insecticides alone

    Opposite direction

  3. positive

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.