etc., M. Effects of some naturally occuring chemicals and extracts of non-host plants on feeding by spruce budworm larvae, Choristoneura fumiferana. Orono, Maine: 1982 23 p. : ill.
etc., M. Effects of some naturally occuring chemicals and extracts of non-host plants on feeding by spruce budworm larvae, Choristoneura fumiferana. Orono, Maine: 1982 23 p. : ill.
etc., M. (1982) Effects of some naturally occuring chemicals and extracts of non-host plants on feeding by spruce budworm larvae, Choristoneura fumiferana, Orono, Maine: 23 p. : ill.
etc., M. (1982). Effects of some naturally occuring chemicals and extracts of non-host plants on feeding by spruce budworm larvae, Choristoneura fumiferana. Orono, Maine: 23 p. : ill.
etc. M. Effects of some naturally occuring chemicals and extracts of non-host plants on feeding by spruce budworm larvae, Choristoneura fumiferana. Orono, Maine: 1982. p. 23 p. : ill.