none Biology and life history of Conotrachelus schoofi Papp on pecans is given. Adults appeared in early April and deposited eggs in shoots from early April to the end of May. Instars were found from 18 April to 28 May. Most fifth instars entered the soil from 18 May to 8 June. Pupae were found from 19 May to 23 June. Teneral adults emerged from the last week of May until the last week of June. Females laid ca. 12 eggs each. Feeding and oviposition damage of larvae is described and compared with those of the closely related species C. aratus Germar. The most abundant parasites found in eggs and larvae were Anaphea sp. poss. conotracheli (Girault) and Nealiolus rufus Riley, respectively. Lindane and endosulfan provided good control of C. schoofi for 7 days. Whole animal physiology; Nutrition; Diet; Reproduction; Reproductive behaviour; Reproductive productivity; Life cycle and development; Parasites diseases and disorders; Parasites; Insect parasites; Hosts; Insect hosts; Land and freshwater zones; Nearctic region; North America; USA Conotrachelus schoofi (Curculionidae); Dormancy; Overwintering adults, appearance & longevity on food plant; Food plants; Carya illinoensis (pecan); Sexual dimorphism; Oviposition; Injuries to food plant; Egg number; Life cycle; Hymenopteran parasites; Anaphes conotracheli? & Nealiolus rufus; Eggs & larvae; Georgia; Georgia USA; Central; Biology & life history Nealiolus rufus (Braconidae ); Anaphes conotracheli? (Mymaridae ); Coleopteran hosts; Conotrachelus schoofi; Georgia; Georgia USA; Central