Pine weevil (Hylobius abietis) antifeedants from lodgepole pine (Pinus contorta).

K Bratt, K Sunnerheim, H Nordenhem, G Nordlander, B Langström

Index: J. Chem. Ecol. 27(11) , 2253-62, (2001)

Full Text: HTML

Abstract

Pine weevils (Hylobius abietis) fed less on bark of lodgepole pine (Pinus contorta) than on bark of Scots pine (P. sylvestris). Two pine weevil antifeedants, ethyl trans-cinnamate and ethyl 2,3-dibromo-3-phenyl-propanoate, were isolated from bark of lodgepole pine. These two compounds significantly reduced pine weevil feeding in a laboratory bioassay. In field assays, the second compound significantly decreased pine weevil damage on planted seedlings. Ethyl 2,3-dibromo-3-phenylpropanoate has not previously been reported as a natural product.