Comparative analysis of efficacy and longevity of different pheromone baited septa for control of Gram Pod Borer in Chickpea in Uttaranchal, India

Pheromones are species specific chemicals which are biodegradable, eco-friendly, chemically safe, and required in ultra low dosages and used as efficient tool for insect pest management. Efficiency of pheromone traps used for pest control depends on air borne pheromone stimulus, in specific ratio and concentration released from septa. Field longevity of synthetic lures for Helicoverpa armigera (Lepidoptera: Noctudae) and efficacyof different septa were evaluated by mass trapping experiments in Pantnagar, India. The longevity (shelf life) of septa impregnated with pheromone components (Hexadecenol) and 97: 3 blend (Z-11-hexadecenal and Z-9-Hexadecenal) were studied by gas chromatographic estimation of the residual pheromone remaining on the septa at different time interval and temperature conditions. The rubber eraser septum isfound to be mosteffective one. This studyis helpful topopularizethe pheromone technology among the farmers as they can store the already loaded septa and use them for control of H.armigera.