Potensi Trichoderma harzianum dan Mikoriza untuk Pengendalian Penyakit Jamur Akar Putih (Rigidoporus lignosus (Kloztch) Imazeki) pada Karet.

Abstract

Indonesia is the largest producer of rubber after Thailand. The development of the rubber industry is still on going. However, the presence of rubber diseases become a problem in the rubber industry development. White root fungus disease caused by the fungus Rigidoporus lignosus is a major disease in rubber plantations. The experiment aims to determine the potential of the fungus Trichoderma harzianum and mycorrhizae fungi for controlling white root disease on rubber seedlings in the greenhouse. The experiment has been done in complete randomizeddesign, 8 treatments and 4 replications. The treatments were, applications of T. harzianum, mycorrhizae, and their combinations, with and without R. lignosus. The result have shown that T. harzianum, mycorrhizae, and their combinations have supressed JAP diseases incidence and severity. At the time of seedlings, the treatment of T. harzianum singly has found as the most effective and efficient in supressing diseases severity and in increasing plant vegetative growth.