DESCRIPTIONS OF NORTH AMER CHA


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Descriptions of North American Chalcididæ


Book Description

Excerpt from Descriptions of North American Chalcididae From the Collections of the U. S. Department of Agriculture and of Dr. C. V. Riley, With Biological Notes (First Paper); Together With a List of the Described North American Species of the Family Female - Length, 5mm. Posterior femora with four widely separated teeth. Color, bright scarlet, marked with black as follows: Flagellum of antennae, with the excep tion of club at tip clypeus and occiput a large circular spot on the mesonotum; a. Transverse band on the metanotum; an irregular spot on each side near tip of abdomen; 3. Large spot on each side of the thorax just below tegulae a dorsal spot near the tip of the posterior coxae a minute circular spot on the dorsum of each hind femur, and two large round spots latero-ventrally, one in the middle and one at tip; spines of femur; a spot at the base of the hind tibiae. The wings are slightly dusky, with a pronounced fuscous spot around club of stigmal vein stigmal club securiform. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.



















Parasitoids in Pest Management


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Pests cause economic damage to crops and stored products, while vectors are responsible for the transmission of disease-causing agents in human beings and livestock. Although the application of synthetic pesticides in agriculture has given immediate relief, it has also caused well-known side effects, leading to a general consensus among entomologists and agriculturists to shift towards other ecofriendly pest management. Insect natural enemies consisting of predators, parasitoids, and pathogens have attracted the attention of scientists across the globe. These natural enemies exist in agroecosystems and suppress the populations of pests. Parasitoids are farmers’ friends and the most successful group of natural enemies. Highly specialised in their host choice, the female parasitoid searches for a suitable host to lay eggs and larvae in, on or near the hosts. Exploiting this potency of parasitoids may yield successful results in controlling notorious pests in an ecofriendly way. This book covers information on the important biocontrol agents effective in pest suppression. It starts with insect parasitic groups followed by specific groups of parasitoids. It is hoped that the book presents a comprehensive account of beneficial parasitoirds, and will be useful to undergraduate and postgraduate students of Entomology, Biological Control, Plant Protection, Agricultural Zoology, and Zoology, besides those involved in competitive examinations and policy planning. Features: Each chapter has been written by very experienced specialists Every chapter includes Learning Objectives and Points to Remember This book offers comprehensive knowledge of parasitoids and their application in pest management in a rational way