Insect Pest Spectrum of French Bean Phaseolus vulgaris (Pole Type) Grown Under Nethouse

Pole bean (Phaseolus vulgaris L.) is an annual herb grown vertically on a support. The present study asseses the insect pests infesting this bean along with their natural enemies under nethouse conditions. The study was done at the Hi-tech Horticulture Unit, UAS, Dharwad. The results revealed five species of insects and one mite species infesting pole bean at various phases of crop growth. These include- the serpentine leaf miner (Liriomyza trifolii), pod fly (Melanagromyza obtusa), seed fly (Anthomyia sp.), leafhopper (Ianagallia bifurcate), tobacco caterpillar (Spodoptera litura), and red spider mite (Tetranychus urticae). The natural enemies include- Brachymeria sp. (Chalcididae), Ichneumon sp. (Ichneumonidae) and Microplitis sp. (Braconidae).