Uji Antagonis Trichoderma harzianum terhadap Botryodiplodia sp. Penyebab Penyakit Mati Pucuk pada Jabon (Anthocephalus cadamba) secara in Vitro

Abstract

Frenquently issues emerge on jabon (A. cadamba) plantations development is Botryodiplodia sp. aggression that cause dieback desease. Biology control is necessary as effort to hamper pathogen growth with lowest environmental contamination risk compared to non biological control. One of biological control configuration is using biological control agent T. harzianum the research supposed to acquire T. harzianum potency as biological control agent against Botryodiplodia sp.. In this research antagonist examination using direct method (dual culture) and indirect method (filtrate T. harzianum). Experiment model is using completely randomize design and in time completely randomize design. This research result shows that T. harzianum disposal in antagonist examination on direct mothode and indirect method against Botryodiplodia sp. growth. This case shows that T. harzianum has potency to against Botryodiplodia sp. growth. So that could be used as biological desease control on jabon (A. cadamba) especially caused by Botryodiplodia sp..