Bassianolide, a new insecticidal cyclodepsipeptide from Beauveria bassiana and Verticillium lecanii.

Abstract

A new insecticidal cyclodepsipeptide, bassianolide (1), was isolated from the mycelia of two entomophagous fungi and its structure was elucidated. Silkworm larvae exhibited an atonic symptom and were killed by administration of 1.