https://catalogue-scientifique.canada.ca/record=3945408~S6*frc
Rechercher Julien, G.R; Rechercher Savard, M.A; Rechercher Ernst, W.R; Rechercher McCall, D; Rechercher Doe, K.G; Rechercher Banoub, J; Rechercher Jackman, P
Environmental Protection Branch, 1999
In an effort to control damage to conifer forests in western Newfoundland by the balsam fir sawfly (Neodiprion abietis) an aerial spray program using Dylox...
Livre