Population and damage intensity of the yellow rice stem borer and its natural enemies in the jajar legowo rice planting system

Abstract Jajar legowo (Jarwo) is a rice planting system that widely practiced by farmers, but information regarding its effects on pests and natural enemies limited. This study aimed to identify how the Jarwo affects population damage intensity of yellow stem borer ( Scirpophaga incertulas ) predators. The research was conducted in Wonosari-Klaten, Central Java, during dry season 2020. 2:1 used this study. variables were S. , intensity, enemies. Observations field inspection carried out every week from 14 94 days after transplanting (DAT). results showed egg clusters lower than conventional (control plot). However, did not affect kinds predators parasitoids. found generalists, which dominated spiders, namely Atypena sp. (Araneae), Araneus Lycosa Plexippus Oxyopes Paederus (Coleoptera) recorded as predatory insects. Meanwhile, main parasitoid Telenomus (Hymenoptera) with 31.2% parasitization.