Composition of pests and predators in the early generative phase of rice cultivation in two different conditions

Abstract

The early phase of growth is the most vulnerable for the survival of rice plants. However, this is influenced by many factors, such as the presence of pests and predators as natural enemies. This study aimed to determine the composition of pests and predators in the vegetative phase of rice plants in rice fields close to forests, and rice fields close to urban areas. The research location was determined by purposive random sampling method. Arthropod species and populations were observed directly from 8 am to 11 am. Data on safety results were processed and calculated. Based on the results of the observations in initial generative phase, there were 687 Arthropods. At the species level, the most abundant main pest was Nilaparvata lugens (11.76%) and Gesonula mundata (10.07%). The most abundant predator was Lycosa pseudoannulata (25.89%). Based on the overall calculation, predatory Arthropods have largest composition (72.36%), while pests were 27.04%. Based on the type of rice field conditions, Arthropods in the rice fields bordering the mountains have higher composition in both pests (15.99%) and predators (41.18%) compared to rice fields that are near settlement/urban areas, namely 11.25% pests and predators 31.18%.