Canadian Forest Service Publications
Détermination du stade larvaire sensible à la lumière chez Neodiprion swainei Midd. (Hyménoptère : Diprionide) 1971. Philogène, B.J.R. Can. J. Zool. 49(4) : 449-450.
Issued by: Laurentian Forestry Centre
Catalog ID: 15725
Availability: PDF (request by e-mail)
The proportion of Neodiprion swainei Midd. eonymphs escaping diapause is related to the larval instar at which the insect was exposed to a long photoperiod. Early instars are far less sensitive to a long daily exposure to light than the last two instars of the sawfly.