Autographa gamma

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5383300
Taxonomy
Kingdom: Animalia
Phylum: Arthropoda
Class: Hexapoda (including Insecta)
Order: Lepidoptera
Family: Noctuidae
Genus: Autographa
Species: gamma
Scientific Name
Autographa gamma
(Linnaeus)
Common Names

silver Y moth

Author: Karan A. Rawlins, Center for Invasive Species and Ecosystem Health, University of Georgia

Overview

Origin
Autographa gamma is a highly polyphagous defoliator of many cultivated plants. Widely distributed in Europe, Asia, Northern Africa and around the world.
Life Cycle
The female moth of Autographa gamma lays eggs on the underside of leaves. After hatching, caterpillars feed mostly on the foliage of host plants. Pupas develop in a silvery cocoon attached to the abaxial leaf surface. One to five generations can develop each year. Fewer generations develop in northern locations with the number of generations per year increasing in southern locations.
Distribution
Autographa gamma is an exotic pest of high invasive risk to the United States (USDA-APHIS 2008). Although there are no records in the United States of establishment by Autographa gamma, this and other Autographa species have been intercepted consistently at U.S. ports of entry on vegetables, cut flowers, ornamentals and other plants being imported.
Control Efforts
Survey methods include visual inspections of host plants for eggs, larvae or pupae (Venette et al 2003). Sex pheromone lures for this moth are available. Historically, the majority of Autographa sp. which has been discovered was associated with cut flowers and vegetables that had been imported from Europe. Autographa gamma is very similar to several related North American species, some of which are attracted to the same lure. Autographa gamma lacks the spine-like tibial setae seen in other similar species.

References

Images from Bugwood.org

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