Feeding and Oviposition Habits of the Jack-Pine Budworm1

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Abstract
The jack-pine budworm, Choristoneura pinus Freeman, bored into the main axis of staminate cones, cone-bearing twigs and scored the surface of twigs, On nonstaminate cone-producing trees the budworm scored the surface of twigs, bored into twigs and mined the fascicles of new needles. Larvae occasionally fed on the sides of old needles. The budworm was not observed mining new needles. Larvae in marquisette rages consumed about 50 needles pee larva, but the feeding habits differed from those of uncaged larvae. Seventy-eight per cent of the egg masses of ('aged adults were laid in two rows on the underside of needles.

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