Grape Flea Beetle – Altica chalybea

Grape Flea Beetle – Altica chalybea Common Name: Grape Flea Beetle Latin Name: Altica chalybea Appearance:

• The Grape Flea Beetle is a metallic blue or black beetle with a length of about 2-4 mm.
• Eggs:The eggs of Grape Flea Beetles are small and yellowish and are laid in clusters on the undersides of grape leaves.
• Pupae:The pupae are found in the soil beneath grape vines and are light yellowish-brown.
• Larvae:The larvae of Grape Flea Beetles are small and worm-like with a yellowish-white color.
• Adults:The adult Grape Flea Beetle is the stage that causes damage to grape vines. They feed on the leaves, leaving behind small holes and skeletonization of the leaf tissue.

Host plants: Grape Flea Beetles primarily feed on grape vines, but they can also be found on other plants such as apples, cherries, and blackberries. Territory: Grape Flea Beetles are found throughout the eastern and central United States. Damages caused by Grape Flea Beetle: Grape Flea Beetles can cause significant damage to grape vines, especially in large numbers. The damage can reduce vine growth and yield and make the plant susceptible to other pests and diseases. Life history and habitat: Grape Flea Beetles overwinter as adults in leaf litter and other debris on the ground. In the spring, they emerge and feed on the new growth of grape vines. Females lay their eggs on the undersides of grape leaves, and the larvae feed on the leaves before pupating in the soil. The new generation of adults emerges in late summer and feeds on the grape vines before overwintering again.