Studies of the Bronze Birch Borer, <i>Agrilus anxius</i> Gory, in New Brunswick

Abstract

Agrilus anxius was described by Gory (1841), and later given the name “bronze birch borer” by Chittenden (1898). It was recently separated from a closely allied species attacking poplar, A. liragus (Barter and Brown, 1949; Smith, 1949). The borer is native to North America and occurs apparently throughout most of the range olf birch from Newfoundland to British Columbia, and south to New Jersey, Ohio, and Colorado (Barter and Brown, 1949; Fisher, 1928).