1. UC IPM
Life cycle of the lodgepole sawfly, <i>Neodiprion burkei.</i>.
Life cycle of the lodgepole sawfly, Neodiprion burkei..
Credit: F.P. Keen. Adapted from Insect Enemies of Western Forests. 1938. USDA Miscellaneous Publication 273 Figure 45. Available online: http://archive.org/details/insectenemiesofw273keen.