Chemicals losing effect against grape mealybug
California Agriculture 36(5):15-16. DOI: 10.3733/ca.v036n05p15.
Donald L. Flaherty is Entomology Farm Advisor, University of California Cooperative Extension, Tulare County; William L. Peacock is Viticulture Farm Advisor, University of California Cooperative Extension, Tulare County; Larry Bettiga is Staff Research Associate, San Joaquin Valley Agricultural Research & Extension Center, Parlier; George M. Leavitt is Viticulture Farm Advisor, Madera County.
Field tests verified reports of problems in achieving satisfactory control of mealybug with chemicals.
The authors acknowledge the cooperation of Pro-Ag, Inc., Visalia, and Pest Management Associates, Exeter, California.