Pengujian Trichoderma Sp. Sebagai Pengendali Hawar Daun Bibit Kakao Yang Disebabkan Oleh Phythopthora Palmivora

Abstract

Testing of Trichoderma sp. as a biocontrol agent for cocoa seedlings leaf blight caused by Phytophthora palmivora. This study aims to determine the ability of Trichoderma sp. TCN-Klp isolates suppressed P. palmivora inoculated on the leaves of cocoa seedlings with and without wounding the leaves before inoculation. There were two kinds of experiments: inoculation without wounding the leaves (1 st experiment) and inoculation with wounding leaves (2 nd experiment). Both of them were done by inoculation treatment: pathogens, Trichoderma, pathogens and Trichoderma simultaneously, then pathogens and incubated for 2x24 hours then inoculated. The results showed that the isolates TCN-Klp of Trichoderma sp was able to suppress pathogens by inoculation simultaneously, which was preceded and precede the pathogens with a gap of 24 hours on with and without wounding leaves at 10 days after inoculation.