Pg. 68-70 Litchi dieback: In vitro pathogenicity tests to establish the most prominent predisposing organisms

Fungal isolates obtained after a survey of litchi trees with dieback were inoculated into litchi trees to determine pathogenicity. Root rot symptoms were obtained after inoculation with Pythium groups HS, G and P, Pythium vexans and Phytophthora drechsleri/cryptogea complex. These pathogens could, however, not be re-isolated from infected tissue. Isolates of the genera FusariumRhizoctonia, Pesttlotia and Botryosphaeria were able to infect plant tissue and they were re-isolated from infected tissue.

Powered by BetterDocs