NATURAL BIOPESTICIDE FROM LIQUID SMOKE TO CONTROL BROWN PLANTHOPPER Hernani, Sri Yuliani and Rahmini
Indonesian Center for Agricultural Postharvest Research Development (ICAPRD)
Indonesian Center for Rice Research
Abstract
Liquid smoke from rice husk has the potential to be developed as a natural pesticide. The purpose of this research was to find out of formula from liquid smoke to control brown planthopper. The methodology used through several stages of activities, purification of liquid smoke, formulation of natural pesticide made emulsification concentrate, and using liquid smoke as active compound, synergistic, adjuvant, and also solvent; toxicity of formula and bioassay tested of formula to brown planthopper in the laboratory. The result showed that 7 formulas of natural pesticide have been produced based on smoke liquid. From the toxicity test on 7 formulas, it has a toxicity (LD50) ranging from 128 to 725 ppm. All these formulas are still categorized as toxic and can use as a pesticide. Mortality test results with 3 variations of concentration showed that the best results were at a concentration of 10%. In this case, observations on day 7 can kill 90%.
Keywords: Pesticide, liquid smoke, brown planthopper
