Uji Beberapa Konsentrasi Ekstrak Daun Sirih Hutan (Piper Aduncum L.) Berpelar…

ABSTRACT Soybean (Glycine max L.) is a major food crop after rice and corn according of its high plant-based protein content. Spodoptera litura is a primary pest of soybeans and reported cause yield loss up to 80% by feeding on leaves. Commonly, the farmers use synthetic chemical pesticides for control the pest, but it has negative impact for environment. Botanical pesticides offer an environm…