Newer insecticides for the control of grape insect and spider mite pests
AuthorsE. M. Stafford
Authors AffiliationsE. M. Stafford is Professor of Entomology, University of California, Davis; H. Kido is Laboratory Technician, University of California, Davis.
Hilgardia 23(4):6-8. DOI:10.3733/ca.v023n04p6. April 1969.
THE RESISTANCE of insect and spider mite pests of grapevines in many areas of the San Joaquin Valley to insecticides has led to the use of combinations of insecticides and often to more frequent applications for control. In view of the history of the use of combinations of chemicals for control of insecticide-resistant pests, these insects and spider mites may soon become resistant to the combinations now in use. Although a great many combinations may be tried and some new ones may be found effective, grape growers need additional and more effective acaricides. To this end, many newer chemicals (not registered for use on grapes) have been tested in the field for the past several years. Some of these are nearing registration and general use; however, the University of California does not have sufficient information to recommend any of these new materials for use on grapevines at the present time.
Also in this issue:Agriculture at Berkeley
Gill tract University of California, Berkeley
Parasites for control of grape leaf folder
Microbial insecticides for control of grape leaf folder
Population densities and economic injury levels of grape leafhopper
Effects of road dust on spider mites
Ecology and integrated control of spider mites in San Joaquin vineyards
Protecting young trees from attack by the pacific flatheaded borer
Effects of timing gibberellin sprays for berry sizing on maturity of table Thompson Seedless
RH 315 a new herbicide with potential for weed control in lettuce
Omnivorous leaf roller an important new grape pest in the San Joaquin valley
Seedling survival in a giant sequoia forest
Self-incompatibility in species of Lycopersicon Sect. Eriopersicon and hybrids with L. esculentum