Utah Pest News Spring 2010

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CAPS Update

The Cooperative Agricultural Pest Survey (CAPS) is a pest-surveillance program managed by USDA–APHIS, in conjunction with the Utah Department of Agriculture and Food. This summer we will survey three moth species (Figures 1-3) that could potentially enter Utah and cause damage to a broad range of crops.  The larvae of all three species feed on over 180 different plants, both wild and cultivated.  All three species have been detected in the U. S. many times, but so far they have failed to become established.

Because these moths are well suited to Utah’s climate, and because the consequences of establishment would be dire, surveying for these pests every 2-3 years is considered a high priority.  The survey will target sites throughout the state where corn and hay are grown or processed.  If you have suggestions of trapping sites, or if you believe that you’ve seen one of these pests, contact Cory Vorel, USU CAPS Coordinator (cory.vorel@usu.edu).


Figure 1. Adult and larval stages of silver Y moth, Autographa gamma.
Figure 2.  Adult and larval stages of old world bollworm, Helicoverpa armigera.
Figure 3.  Adult and larval stages of Egyptian cottonworm, Spodoptera littoralis.