Paralobesia viteana

Paralobesia viteana, commonly known as the Grape Berry Moth, is a species of moth in the family Tortricidae. It is native to North America and is considered a significant pest in vineyards, particularly those growing Vitis vinifera or European grape varieties.

Description

The adult Paralobesia viteana is a small moth with a wingspan of approximately 6-8mm. Its forewings are grayish-brown with a distinctive pattern of lighter and darker bands. The larvae are initially pale green, becoming darker as they mature.

Life Cycle

The Paralobesia viteana has a complex life cycle with three to four generations per year. The female moth lays her eggs on the underside of grape leaves or directly on the grape berries. After hatching, the larvae feed on the grape berries, causing significant damage.

Distribution and Habitat

Paralobesia viteana is found throughout the eastern United States and Canada, from the southern regions of Ontario and Quebec to the Gulf of Mexico. It is particularly prevalent in the grape-growing regions of the northeastern United States. The moth prefers vineyards as its habitat, particularly those growing European grape varieties.

Pest Status and Control

As a pest, Paralobesia viteana can cause significant damage to grape crops. The larvae feed on the grape berries, causing direct damage to the fruit. In addition, the feeding activity can lead to secondary infections by fungi or bacteria. Control measures include the use of insecticides, biological control agents such as parasitic wasps, and cultural practices such as pruning and sanitation.

See Also

• Tortricidae
• Vitis vinifera
• Pest (organism)