Introduction of indigenous Trichoderma spp. as an induced systemic resistance for Dieback disease control on the Nutmeg seedlings

Dieback disease caused by L. theobromae has destroyed nutmeg plantations in Aceh Selatan. Until now, effective control not been found, while farmer continue to use pesticides that have a negative impact on the environment. Therefore, biological is an alternative environmentally friendly being promoted. The purpose of this researth was dieback inducing resistance using three spesies Trichoderma (local isolates) from Nutmeg. isolates were plant origin and seeds used are one year old. This randomized blok design with species (T. virens, T. asperellum, harzianum), doses (5, 10, 15 g), replicates.The variables observed incubation period, incidence, length stem discoloration, height plant, wet weight. Thr result showed all tested able induce systemic promoted growth, inhibiting increasing weight plant. treatment virens 10 g best compared others.