PENGARUH TANAMAN REFUGIA TERHADAP POPULASI MUSUH ALAMI WERENG BATANG COKLAT (NILAPARVATA LUGENS STAL.) PADA BUDIDAYA TANAMAN PADI (ORYZA SATIVA L.)

Abstract

Rice is one of the main commodities used as a staple food for all people in Indonesia and  even the world. Efforts to increase rice production face increasingly formidable challenges. One of the pests that is the biggest factor of damage to rice yields is the brown planthopper (Nilaparvata lugens Stal.) (WBC). One alternative that can be used to control brown planthopper pests that is environmentally friendly is using integrated pest management techniques (IPM) with enviromental engineering using refugia plants.  Refugia plants that can be used are basil plants, flower cabbage plants  and celery plants. The purpose of this study was to determine the effect of refugia on the diversity and abundan ce of WBC natural enemies in rice and yields of 100 grains of grain weight. This research was started from  september to december 2019.  Located in an integrated field laboratory, Kadiri Islamic University , in Rejomulyo Village, Kediri City District, with the topography at an altitude of 67 meters above sea level, with daily average temperature and humidity (35˚C and 50 %), wint speed  3,6 m/s(13,03 km/hour), has a type of sandy clay soil, pH ± 6,2 and rainfall 3,5 mm/month. With the observed variables, namely the diversity and abundance of natural enemies of WBC, and the weight of 100 grains of grain. The results showed that the use of refugia plants had a significant effect on the evenness of the population of WBC natural enemies, namely the formicidae and carabidae families in the cultivation of rice plants with basil as a refugia plant but the grain had no significant effect.

Keywords:  Nilaparvata lugens, Natural Enemies, Refugia Plants, Rice Plants