New Moth and Worm Guide Available

Jun 16, 2011

A new guide focused on moths and worms found in vineyards is available to grape growers. The guide focuses on moth species that may be confused with European grapevine moth, a recent introduction to San Joaquin Valley viticulture. Growers can follow the guide to distintuish one or more life stages of lepidopteran pests associated with damage to grapevine clusters.

WormGuide-2011 (2)


The following is a list of moths that the guide focuses on:

European grapevine moth
Orange tortrix
Light brown apple moth
Omnivorous leafroller
Western avocado leafroller
Raisin moth

Growers can obtain a guide from there local University of California Cooperative Extension office.

Additional information on vineyard worm pests can be found here.


By Stephen J. Vasquez
Author - Viticulture Farm Advisor