Tuesday, December 12, 2006
D0337

Comparison of counts of navel orangeworm males and eggs in traps in almonds and pistachios

Charles Burks, cburks@fresno.ars.usda.gov1, Brad Higbee, BradH@paramountfarming.com2, and David Brandl, dbrandl@fresno.ars.usda.gov1. (1) USDA-ARS, 9611 S. Riverbend Ave, Parlier, CA, (2) Paramount Farming, 21707 Lerdo Highway, McKittrick, CA

Preliminary data suggests that pheromone trap counts of the navel orangeworm Amyelois transitella (Walker) crop damage are significantly correlated in almonds but not in pistachios.  Currently there is not a commercially available pheromone lure for navel orangeworm, and egg counts on traps containing an oviposition attractant are used to time insecticide application.  Here we use data from various experiments in 2004, 2005, and 2006 to examine the range and frequency distribution of egg counts found in these two crops and the correlation between trap counts and subsequent damage. 



Species 1: Lepidoptera Pyralidae Amyelois transitella (navel orangeworm)