ANALISIS KORELASI DAN REGRESI DINAMIKA POPULASI HAMA DAN MUSUH ALAMI PADA BEBERAPA VARIETAS UNGGUL PADI SETELAH PENERAPAN PHT DI KABUPATEN BONE PROVINSI SULAWESI SELATAN

Abstract

Different types of rice pests, have been reported. The explosions and a potential pests are Rice Stem Borer (Tryporiza sp.), Brown Planthoppers (Nilaparvata lugens), Green Leafhoppers (Nephotettix virescens), and Rats (Rattus sp.), wich an obstacle in creating stability of rice production in Bone. In rice ecosystem, natural enemies of arthropod predators are most instrumental in suppressing the pest population. Fluctuation in population density of natural enemies, affecting pests presence. Efforts to suppress pest proportions through IPM, is a strategy of lowering the level of pests and damage to rice crops. This study aims to identify and measure the relationship strength between pests and natural enemies populations in some rice varieties after IPM, using correlation and regression analysis. Observations conducted in Bone, from May to August 2012, with 2 observed variables, pests and natural enemies populations in Inpari 6, Inpari 10, Inpari 16, Ciherang, Cigelis, and Mekongga. Data analysis were performed using correlation and regression analysis. The results showed a high degree of correlation between pest and natural enemies (predators) populalions, characterized by a positive correlation coefficient (0.957) and significant at the level of 0.01, where each increase in the intensity of pest populations, will be followed by increase in the number of natural enemies captured.