Claim · model-written summary
Dosages of 0.75 and 1.0 pound of schradan gave better control than 0.5 pound per acre.
- Taxon
- walnutt0
- Treatment
- dosages of 0.75 and 1.0 pounde2
- Outcome
- controle2
- Direction
- bettere2
- Comparator
- 0.5 pound of schradan per acree1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Verbatim
t0“Walnut Aphid Investigations in Northern California”
e1“Except in a region where the aphid has shown resistance to certain phosphate insecticides, 0.5 pound of schradan per acre has effectively controlled the pest for an entire year”
e2“Better control has been obtained with dosages of 0.75 and 1.0 pound”
Title
Walnut Aphid Investigations in Northern California
A. E. Michelbacher; Stephen Hitchcock Journal of Economic Entomology 1958. doi:10.1093/jee/51.4.527
Other claims from this paper (9)
- Intervention effect Schradan was the most effective insecticide tested against the walnut aphid.
- Intervention effect 0.5 pound of schradan per acre effectively controlled the walnut aphid for an entire year, except where the aphid resists phosphate insecticides.
- Recommendation Treatments must be made before the foliage hardens for satisfactory results.
- Association Vigor and thoroughness of application influence the effectiveness of treatment against walnut pests.
- Intervention effect Schradan exerts a suppressing action on other sucking pests of walnut.
- Intervention effect Schradan tends to increase the population of the calico scale.
- Intervention effect Schradan tends to increase the population of the European red mite.
- Mechanism Vigor of the trees and the fine quality of foliage on schradan-treated trees may partly result from a stimulus beyond aphid and pest control.
- Association Severe infestations reduced the size of developing walnut nuts.