Mountain ash (Sorbus)-Root weevil

Various species

Pest description and damage Identification is important as multiple species differ in susceptibility to pesticides. Adult weevils are dark colored, nocturnal beetles from 0.2 to 0.25 inch in length, with a snout (rostrum) and elbowed antennae. Look for ragged notches on the edges of leaves, or flower petals. Larvae are C-shaped, legless, and white, sometimes reddish, with tan heads, up to 0.5 inch in size. Larvae are rarely a significant problem in established landscapes.

For biology, life history, monitoring and management

See "Root weevil" in:

Management-chemical control

See Table 2 in: