UJI BEBERAPA DOSIS TEPUNG BIJI LADA HITAM (Piper nigrum L.) UNTUK MENGENDALIKAN HAMA Callosobruchus chinensis L. PADA BIJI KACANG HIJAU DI PENYIMPANAN

Abstract

Callosobruchus chinensis L is pest that attack mung beans in storage. The pest control of C. chinensis L. is usually performed using synthetic insecticides, however unwise usage can cause negative impacts to humans and the agricultural environment, so that the alternative insecticides that are safer and environmental friendly was needed, like a pesticide plant such as grains of black pepper (Piper nigrum L.). The research was conducted at the Laboratory of Plant Pests, Faculty of Agriculture, University of Riau from December to February 2016. The aim of this study was to get a dose of black pepper seed flour (Piper nigrum L.) which was effective in controlling pests of Callosobruchus chinensis L. on mung beans in storage. The treatments were doses of black pepper flour (Piper nigrum L.) in 50 g mung beans: 0 g, 0.5 g, 1.0 g, 1.5 g and 2.0 g. The experiment was using a completely randomized design (CRD) with 5 treatments and 4 replications. The results showed that the black pepper (Piper nigrum L.) flour in controlling Callosobruchus chinensis L. can cause total mortality of 85,0% at a dose of 1.5 g / 50 g mung beans.