Common Willow Agrilus – Agrilus politus

Common Willow Agrilus (Agrilus politus) Latin Name: Agrilus politus Common Name: Common Willow Agrilus/ Willow gall limb borer Appearance: Egg:

• Eggs are almost transparent white, shiny, and oval with soft shell

Larva/Nymph:

• Larvae has pale white with greatly elongate

Adult:

• Adults are about 5.0-8.5mm long .they are slightly flattened  bright brassy to coppery, purplish, greenish, or bluish and moderately shiny.
• Adults antennae barely reach middle of pronotum and  pronotum wider than long, and sides curved slightly

Host plants: Willow and maple. Preferred hosts are arroyo willow, Scouter willow, Pacific willow, and weeping willow. Rocky Mountain maple, stripe maple, and dwarf maple are also hosts. Territory: It is found in Central America and North America. Damage caused by Common Willow Agrilus: Branch dieback and tree mortality are symptoms of attack. Larvae mine the inner bark and wood of normal, injured, and dying trees and shrubs. Attacks often result in swollen areas and gall-like growths on the branches and trunk. Trees that are attacked repeatedly and survive often develop bark scars that detract from their aesthetic value.