Effects of Trichoderma longibrachiatum on Seed Germination and Physiological Effects of Six Forage Varieties Lethal effects of Trichoderma longibrachiatum on Heterodera avenae. Parasitic and lethal effects of Trichoderma longibrachiatum on Heterodera avenae: Microscopic observation and bioassay. The mechanism, parasitic and toxic effects of Trichoderma longibrachiatum on the eggs of Heterodera avenae Cloning of a novel chitinase gene TlChi46 from Trichoderma longibrachiatum parasitizing on Meloidogyne incognita eggs Determining antifungal spectrum and mechanism of Trichoderma longibrachiatum in vitro