Polydrusus sericeus, also known as the green immigrant leaf weevil, is sometimes found in large numbers in nurseries in the late spring / early summer. This weevil is European in origin and first found in New York in 1906. They are reported to feed on leaves of trees such as apple, birch, oak, pear, poplar, strawberry and willow. They are rarely considered a pest. Their feeding can be more of a problem on smaller, liner-sized plant material. Their larvae feed on roots.