THE LIGHT REACTIONS OF THE SPRUCE BUDWORM, CHORISTONEURA FUMIFERANA CLEMENS (LEPIDOPTERA TORTRICIDAE)

Abstract

This paper deals with the orientation reactions exhibited by larvae and adults of the spruce budworm, Choristoneura fumiferana (Clemens), (12) in response to stimulation by light. The insect is an important pest of the coniferous trees, Abies balsamea Mill, and Picea spp., which compromise the pulpwood stands of the forests of northeastern North America. Hence, at present, it is the subject of many investigations. The work reported here is part of an investigation designed to provide data for the development of studies of the effects of weather and climate upon the spruce budworm.