In tomato, where pest management plays an important role in harvesting its maximum potential, numbers of insecticide applications though increases the yield, but are economical up to a certain extent. The increased insecticide applications coupled with high cost result in escalation of cost of cultivation which further makes the crop uneconomical due to non-remunerative price of the crop produce. Their massive overuse and frequent misuse has led to the problems of three Rsviz.; resistance of pesticides, resurgence of pest and residues as well as toxicity hazards to non-target animals. The...

Ce livre contient la biologie et la gestion du ver de l'épi, Helicoverpa armigera (Hub.) dans le millet perlé d'été. Ce livre est très utile aux chercheurs ainsi qu'aux scientifiques de la discipline de l'entomologie qui travaillent sur l'helicoverpa armigera dans différentes cultures. Des recherches ont été menées sur la biologie du ver de l'épi, Helicoverpa armigera (Hub.) et sa gestion dans le millet perlé à l'Université agricole de Sardarkrushinagar Dantiwada, Sardarkrushinagar au cours de l'année 2010-2011.

This book is useful for who are going to conduct research related to mutation. The success of mutation breeding lies in creating appropriate genetic variability without many associated deleterious effects in plant type and its performance in terms of productivity and nutritional alternations. Micro mutation are expected to be more effective in inducing higher proportion of desirable mutations and providing future base for selection through induction of enormous polygenic variability.It also depends on effective and need based selection, observing the changes critically at plant level.