Food
They are reported to feed on leaves of trees such as apple, birch, black locust, blueberry, elm, linden, oak, peach, pear, plum, poplar, rose, strawberry and willow (Beers et al, 2003; Rosetta, personal observation). They are rarely considered a pest but shade tree growers might want to inspect for terminal feeding and loss. Their feeding can be more of a problem on smaller, liner-sized plant material. Their larvae feed on roots.References:
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http://oregonstate.edu/dept/nurspest/Polydrusus_weevil.htm