Succession of Major Insect Pests of French Bean (Phaselous vulgaris Linn.) in Relation to Crop Stage

The present investigation was carried out during Kharif and Rabi 2014–15 at College of Agriculture, Vishveswaraiah Canal Farm, Mandya, Karnataka. The study revealed that the succession of major insect pests population of different insect pest species appeared on the crop from seedling stage till pod maturation (15–70 days after sowing) and the maximum number of insect pests infested the crop during vegetative and flowering stage and the crop was continuously attacked by one or more pests. Major pests found infesting the crop were Bean leaf webworm (Omiodes indicata), Spotted pod borer (Maruca vitrata), Stem fly (Ophiomyia phaseoli), Flea beetle (Monolepta signata), Aphids (Aphis craccivora), Bean Pod borer (Helicoverpa armigera), Leaf hopper (Empoasca kerri), Brown pod bug (Riptortus sp.), Green bug (Nezara viridula), Leaf miner (Liriomyza trifoli) and Hairy Caterpillar (Spilarctia obliqua).