Page Banner

United States Department of Agriculture

Agricultural Research Service

Research Project: Sampling for Lepidopteran Infestation in Walnuts

Location: Commodity Protection and Quality

Project Number: 2034-43000-037-39
Project Type: General Cooperative Agreement

Start Date: Dec 01, 2013
End Date: May 01, 2014

Objective:
Compare, between test sites and across successive harvests, the proportion of walnuts infested by codling moth and the proportion navel orangeworm.

Approach:
Obtain samples of walnuts from study sites during harvest, and store at -20C until evaluation. Crack open individual walnuts, and note defect categories, if any. If insect infested, categorize damage based on presence of life stages, webbing, or frass.

Last Modified: 11/23/2014
Footer Content Back to Top of Page