Efektivitas Ekstrak Organik Buah Sirih Hutan (Piper Aduncum L.) Asal Riau Ter…

ABSTRACT Corn (Zea mays L.) is the second important food crop after rice and some areas still use corn as a staple food in Indonesia.One of the problems faced in corn cultivation is the attack of the corn armyworm (Spodoptera frugiperda J. E. Smith). The corn armyworm S. frugiperda is an important pest in corn cultivation, because it can cause a decrease in production of 5-20% when the larvae …