Antifeedant activity of some sesquiterpenoids of the genus Lactarius (Agaricales: Russulaceae)

Abstract

A test with wafer discs was used to examine the ability of 20 compounds to inhibit feeding in adults of Sitophilus granarius and Tribolium confusum as well as in the larvae of Tribolium confusum and Trogoderma granarium. The compounds tested were sesquiterpenoids of lactarane, isolactarane, marasmane and 13-normarasmane skeletons, either isolated from species of Lactarius or their synthetically prepared derivatives. The obtained results of the antifeedant activity are discussed.