Sprays of standard lead arsenate for first brood grape leaf folder control and parathion dusts for second and third brood controls have generally given the best results in trials carried out during the last three years.

D. F. Barnes, Marketing Research Division, Biological Sciences Branch, USDA, Fresno, established the dates of the grape leaf folder broods.

Hiroshi Kido, Senior Laboratory Technician, University of California, Davis, and Jack Fleming, Farm Advisor, Fresno County, assisted in the studies reported here.