EVALUASI PENGARUH INSEKTISIDA SINTETIK TERHADAP SERANGAN HAMA THRIPS PADA TANAMAN CABAI

Abstract

Thrips sp. can cause damage to the leaves of chili plants. Using the right concentration of synthetic insecticides that can reduce the intensity of pest attacks must be evaluated. Assessment of pest attack intensity is generally based on visual observation only, while assessment based on a digital image processing approach has not been reported. This study aims to evaluate the intensity of thrips pest attack based on image processing of chili leaves treated with synthetic insecticides. The study was designed following the randomization pattern of a Randomized Group Design (but not continued to the analysis of variance). It consisted of five treatments of Dimethoate 430 g/l insecticide concentration, namely P1 = 0.0% (control), P2 = 0.2%, P3 = 0.3%, P4 = 0.4%, and P5 = 0.5%. The observed variables were the intensity of chili leaf damage and the relative control effectiveness, which were analyzed descriptively. Based on the results of the study, it can be concluded that high concentrations of synthetic insecticides can suppress the attack of thrips pests on chili leaves, while the concentration of synthetic insecticides that are effective in suppressing the intensity of pest attacks is 0.4%. Keywords: Thrips, Chili leaf, Digital Image.