Pengamatan Pradewasa Capung (Odonata) di Sawah Organik, Semi-Organik, dan Konvensional

Abstract

Dragonflies is one of the important aquatic insects on the environmental. Dragonflies play a role as significant natural enemies in the paddy fields. This study aimed to determine the diversity and population of dragonfly nymphs in organic, semi-organic, and conventional paddy fields in Bogor area, West Java. Sampling was conducted from February to June 2019. Sampling was carried out at the edge of the paddy fields on the vegetative phase until close to the generative phase, using water nets. During the study, 2 families and 4 genera were found, i.e. Agriocnemis (Coenagrionidae), Orthetrum, Pantala, and Libellula (Libellulidae). Orthetrum was the most abundant in all sampling areas. Agriocnemis and Libellula on organic paddy fields were more abundant rather than on semi organic and conventional paddy fields. Naiad on the organic paddy field was the most abundant, two to three times than semi-organic and conventional paddy fields.