Uji Efektivitas Tiga Isolat Cendawan Entomopatogen Paecilomyces sp. terhadap Berbagai Instar Larva Ulat Kantong Pteroma pendula (Lepidoptera: Psychidae) di Perkebunan PT. Nusa Pusaka Kencana

Abstract

Bagworm Pteroma pendula has become endemic and difficult to control in several oil palm plantation areas. The entomopathogenic fungi Paecilomyces sp. is one of the biological agents reported to have been successful in controlling bagworm P. pendula. This study aims to test the effectiveness of three isolates of the entomopathogenic fungi Paecilomyces sp. against various larval instars of P. pendula in oil palm plants. This research was conducted from October 2023 to February 2024. This study used a factorial Randomized Block Design (RBD) with two factor, the first factor was the origin of entomopathogenic fungal isolates (Bahilang Plantation, Madina Plantation, and Tanah Datar Plantation) and the second factor was the instar larvae of P. pendula (1st instar, 2nd instar, and 3rd instar) with three replications. The results showed that 1st instar larvae of P. pendula had the highest mortality percentage (68.33%) and the fungal isolate Paecilomyces sp. from Madina plantation against 1st instar larvae was the best treatment seen from the highest mortality percentage (100%) and the fastest LT50 test larvae, namely 4 days.