Conotrachelus

Probably the most serious enemy of _Juglans_, in Connecticut at least, is the walnut weevil or curculio, _Conotrachelus juglandis_ LeC.

Northern Nut Growers Association, report of the proceedings at the eighth annual meeting Stamford, Connecticut, September 5 and 6, 1917

_Conotrachelus aratus_, feeds abundantly in some localities within the leaf petioles of hickory.

Northern Nut Growers Association Report of the Proceedings at the Eleventh Annual Meeting Washington, D. C. October 7 and 8, 1920

There is one species, _Conotrachelus juglandis_, that confines its attacks to the young fruits and shoots of walnuts of the butternut group, another, _Conotrachelus retentus_, that seems to attack exclusively the black walnut fruits from the time they set until they are half grown, still another, _Conotrachelus affinis_, that appears to attack only half-grown hickory nuts.

Northern Nut Growers Association Report of the Proceedings at the Eleventh Annual Meeting Washington, D. C. October 7 and 8, 1920

Reports of injury by the walnut weevil, Conotrachelus juglandis, and also by codling moth larvae have been received.

Northern Nut Growers Report of the Proceedings at the Twenty-First Annual Meeting Cedar Rapids, Iowa, September 17, 18, and 19, 1930

The Squash beetle (Diabrotica vittata, Fig. 231, and Fig. 230, D. 12-punctata) now attacks the squash plants before they are fairly up; and the Plum weevil (Conotrachelus nenuphar, Fig. 232) will sting the newly formed fruit, late in the month, or early in June.

Our Common Insects A Popular Account of the Insects of Our Fields, Forests, Gardens and Houses 1872