Effectiveness of Bio Fungicide with Active Ingredients Consortium of Trichoderma virens to Control Ganoderma boninense in Palm Oil Nursery

Abstract

Ganoderma boninensa is a main pathogen causes basal stem rot in palm oil plant. This study aimed to determine the effectiveness of bio fungicide plus with active ingredients from the consortium of Trichoderma virens and get the best formula of bio fungicide plus in controlling Ganoderma boninense on oil palm tree nurseries. This research was carried out at the UPT Experimental Garden and Laboratory of Plant Disease Faculty of Agriculture, Riau University also at the researcher’s home garden in Pekanbaru. This study was conducted from October 2020 to February 2021. This study was conducted experimentally using a completely randomized design consisted of five treatments and four replications. Each replication consisted of four oil palm trees seedling. The treatments were a different formula (the nutrition) of the bio fungicide plus from the T. virens consortium (root, stem, midrib) which are with no treatment (B1), palm fronds (B2), dry sago pulp (B3), sago starch (B4), and dry tofu pulp (B5). Data were analyzed by using analysis of variance and continued with Duncan’s New Multiple Range Test (DNMRT) at a 5% level to compare the mean of each treatment. The results showed bio fungicide plus from palm fronds as the formula is the most effective and the best formula for bio fungicide plus with 56,66% effectiveness.