Predation by birds and insects and overwintering mortality of the white pine weevil,PissodesstrobiPeck, were examined in planted and seeded stands of jack pine (PinusbanksianaLamb.) in northern Ontario to develop recommendations for management. No significant difference was found in weevil damage to the stand and in mortality of weevils due to natural enemies between planted and seeded stands. On average, 7.3 ± 0.3 (mean ± 1 SE) weevils emerged as adults from dead terminals. Birds consumed up to 6.4% of late-larval and pupal weevils in planted stands and up to 8.9% in seeded stands. More weevils emerged from screened than from unscreened leaders, indicating a significant mortality of larvae and pupae, presumably owing to insect predators and parasitoids and high density of pupae. Overwintering mortality of adult weevils was 92% in the planted and 76% in the seeded stand. Mammalian predation significantly reduced survival of overwintering weevils. Factors related to other silvicultural treatments, such as the presence of weeds, may be affecting the survival ofPissodesstrobiand the susceptibility ofPinusbanksianastands toPissodesstrobiinfestation. The manipulation of both mammalian predation and overwintering sites should be emphasized in the management ofP.strobiinPinusbanksianaplantations.