Claim · model-written summary
Organophosphate insecticides were generally ineffective before most eggs hatched.
- Taxon
- winter wheat
Triticum aestivume0t0 - Treatment
- Organophosphate insecticidese0
- Outcome
- not effectivee0
- Direction
- not effectivee0
- Qualifier
- before most eggs had hatchede0
Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleComparatorSettingValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Organophosphate insecticides generally were not effective when applied before most eggs had hatched.”
t0“Damage Loss Assessment and Control of the Cereal Leaf Beetle (Coleoptera: Chrysomelidae) in Winter Wheat”
Title
G. David Buntin; Kathy L. Flanders; Robert W. Slaughter; et al. Journal of Economic Entomology 2004. doi:10.1603/0022-0493-97.2.374
Other claims from this paper (16)
- Intervention effect Malathion controlled cereal leaf beetle larvae when applied after most eggs hatched.
- Intervention effect Methomyl controlled cereal leaf beetle larvae when applied after most eggs hatched.
- Intervention effect Carbaryl controlled cereal leaf beetle larvae when applied after most eggs hatched.
- Intervention effect Spinosad controlled cereal leaf beetle larvae when applied after most eggs hatched.
- Intervention effect Encapsulated Bacillus thuringiensis endotoxin at the lowest labeled rate did not effectively control cereal leaf beetle.
- Intervention effect Methyl parathion at the lowest labeled rate did not effectively control cereal leaf beetle.
- Intervention effect Disulfoton at the lowest labeled rate did not effectively control cereal leaf beetle.
- Intervention effect Low-rate λ cyhalothrin applied during egg laying and before or near 50% egg hatch was most effective.
- Intervention effect Early insecticide applications virtually eliminated cereal leaf beetle injury.
- Intervention effect Defoliation before spike emergence harmed grain yield and yield components more than later defoliation.
- Intervention effect Flag-leaf defoliation caused more damage than injury to lower leaves.
- Association Larval injury did not affect grain test weight in most trials.
- Association Larval injury did not affect kernel weight in most trials.
- Association Each larva per stem was associated with a 12.65% yield loss.
- Association Each larva per stem was associated with a 459 kg/ha yield loss.
- Recommendation The authors proposed an economic treatment threshold of 0.4 larvae per stem from spike emergence to anthesis.