This research is part of a study entitled “The Use of Local Trichoderma Biological Agents of Riau as Biofertilizer and Biopestisides in PHT to Control the Disease and Increase Rice Production“. The objective of this research ...

Stem rot of oil palm is caused by the fungus Ganoderma boninense it is an important thing that must be considered in the cultivation of crops. Farmers Disease control by synthetic fungicides which use regulary but often ...