Armillaria - Trichoderma interaction and management of armillaria root of tea (Camellia Sinensis (L) O. Kuntze)
1998
Otieno, W.
In an experiment to test if in vitro antagonism of three isolates of Trichoderma SPP to Armillaria was reproducible in vivo their introduction into the soil with or without concomitant application of coffee pulp, resulted in sustenance of high population densities of the anatagonists for a long time. Addition of coffee pulp to the planting holes as an organic amendment on its own also resulted in high population densities of indigious Trichoderma SPPHowever, the high population densities of the Trichoderma did not have deleterious effects on the pathogen assessable as loss in viability or infectivity of its soil-borne inoculum. The pathogen was still recovered in a viable state from infested pieces of roots in which its inoculum was originally introduced into the soil after 3 yeaaars and infections from the inoculum were recorded in potted plants even after 4 years. Over the same duration, infections from the inoculum were still resutling in death of experimental plants grown in the field under all treatments
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