Claim · model-written summary
Delaying action beyond the 15/8 threshold risks economic yield loss in cotton.
- Taxon
- Cotton
Gossypium hirsutumt1 - Treatment
- delaying action beyond the 15/8 action thresholde4
- Outcome
- economic yield losse4
- Direction
- decreaseinferrede4
Not reportedComparator
Verbatim
t1“Cost-Effective Lygus Managment in Arizona Cotton”
e4“delaying action beyond the 15/8 action threshold risks economic yield loss and reductions in quality, especially color grade and micronaire”
Title
Cost-Effective Lygus Managment in Arizona Cotton
Peter C. Ellsworth; Virginia Barkley UA Campus Repository (The University of Arizona) 2001
Other claims from this paper (8)
- Recommendation Sprays for Lygus should be made once at least 15 total Lygus and 4 nymphs per 100 sweeps are detected.
- Recommendation The 15/4 regime should protect cotton yields, moderate spray frequency and costs, and maximize profit.
- Intervention effect Cotton yields plateau under the more aggressive spray regimes, beyond the level that maximizes profit.
- Intervention effect More protective spray approaches reduced cotton yields in all three years of study (1997, 1999, 2000).
- Intervention effect Delaying action beyond the 15/8 threshold reduced cotton quality, especially color grade and micronaire.
- Recommendation Optimizing inputs so that sprays are made only when indicated by sampling and once the 15/4 level is reached is recommended.
- Intervention effect More aggressive spray approaches cost more and have some probability of lowering cotton yields while risking secondary pest outbreaks.
- Observation The relative importance of Lygus nymphs to cotton yield loss and to the need for action was established.