Efektivitas Konsentrasi Ekstrak Organik Daun Sirih Hutan (Piper aduncum L.) t…

Corn (Zea mays L.) is the one of main food commodity after rice which has a strategic role in agricultural development and the national economy. One of the main pests that attack corn plants is the corn cob borer caterpillar (Helicoverpa armigera Hubner). Alternative control that can be done to reduce the negative impact of synthetic insecticides is using botanical insecticides. Pest control ca…