Pengaruh Ekstrak Rivina humilis dan Diplazium esculentum terhadap Pengendalian Ganoderma boninense pada Tanaman Kelapa Sawit

Abstract

Ganoderma boninense is the main pathogen that causes basal stem rot in oil palm plants, which can reduce productivity and cause mortality. This study aims to evaluate the effectiveness of Rivina humilis and Diplazium esculentum extracts in suppressing the growth of G. boninense, with Trichoderma harzianum as a comparator. This study used a completely randomized factorial design (CRD) with 16 treatment combinations replicated three times, with Rh (25%, 50%, 100%) and De (25%, 50%, 100%) concentrations. The results showed that the extracts of both plants (Rh and De) significantly suppressed the growth of G. boninense. The 50% extract treatment suppressed G. boninense growth by 100,00%. The higher the extract concentration, the greater the inhibitory effect. The results of the two plant extracts tested were not significantly different compared to T. harziaum.