Erwin Irawan

Efficacy of Tithonia diversifolia Leaf Extract Combined with Beauveria bassiana in Increasing Mortality and Reducing the Damage Intensity of Spodoptera exigua on Shallots

Red onion (Allium cepa var. aggregatum) is one of the high value horticultural commodities in Indonesia and widely used in traditional cuisine. However, annual growth in production is limited by adverse climatic conditions, diseases, pest attacks and inconsistent cultivation practices. The red onion caterpillar (Spodop...