BugwoodWiki Article

silver Y moth
Autographa gamma (Linnaeus)

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.

Resources

Selected Images


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5393136

silver Y moth
Autographa gamma
Adult(s)
Julieta Brambila
1265128
1265128

silver Y moth
Autographa gamma
Adult(s)
Paolo Mazzei
5383313
5383313

silver Y moth
Autographa gamma
Larva(e)
Charles Olsen
1265129
1265129

silver Y moth
Autographa gamma
Larva(e)
Paolo Mazzei
5383300
5383300

silver Y moth
Autographa gamma
Larva(e)
Charles Olsen
5383311
5383311

silver Y moth
Autographa gamma
Larva(e)
Charles Olsen
5383312
5383312

silver Y moth
Autographa gamma
Larva(e)
Charles Olsen
5383314
5383314

silver Y moth
Autographa gamma
Larva(e)
Charles Olsen

Taxonomic Rank

Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Atelocerata
Class: Hexapoda (including Insecta)
Infraclass: Neoptera
Subclass: Pterygota
Order: Lepidoptera
Superfamily: Noctuoidea
Family: Noctuidae
Subfamily: Plusiinae
Tribe: Plusini
Genus: Autographa

Other System Links

NPDN Pest: ITBCFCA