Optimalisasi Fungsi Bunga Refugia Sebagai Pengendali Hama Tanaman Padi (Oryza sativa L.)

Abstract

The objectives of this study were to assess the insect population and highest population status on paddy refugia field, and to increase production by improving the quality of maintenance. The benefits of this research is to provide information on the agricultural world on integrated pest control applications. This research was conducted from August to October 2017 in Suren Village, Ledokombo Subdistrict, Jember District and refufia which is used is refugia seeds, namely kenikir (Cosmos caudatus) and paper flowers (Zinnia elegans) and ciherang rice seeds. Refugia is planted simultaneously with rice. Random sampling is systematic (zigzag pattern). The variables observed in this research are investment and classification of insect population. The data collection procedure uses primary data collection method. Population of insect pest, predator and parasitoid highest on observation of rice plant age at age 3, 4 and 5 weeks after planting. While the population of insect pest, predator and parasitoid lowest on observation of age of rice plant and plant refugia age 1 and 2 weeks after planting. Pests identified in rice plants and refugia are green leafhoppers, brown planthopper, broodstock, leaf borer and green grasshopper. Total natural enemies in rice plants without refugia plants as many as 305 heads, rice plants with Refugia plant as many as 438 heads, it can be seen that in rice plants with plants Refugia larger population of natural enemy insects Keywords— Cosmos caudatus, integrated pest management, Zinnia elegan, Refugia