Author : Donald Sewall LaCroix
Publisher : Forgotten Books
ISBN 13 : 9781528024297
Total Pages : 52 pages
Book Rating : 4.0/5 (242 download)
Book Synopsis Insect Pests of Growing Tobacco in Connecticut (Classic Reprint) by : Donald Sewall LaCroix
Download or read book Insect Pests of Growing Tobacco in Connecticut (Classic Reprint) written by Donald Sewall LaCroix and published by Forgotten Books. This book was released on 2017-10-28 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Insect Pests of Growing Tobacco in Connecticut Insects are characterized as small animals having six legs in some period of their existence. Many of them go through four stages before their development is complete. The usual life cycle includes the egg, the larva, (caterpillar, maggot, worm grub) the pupa, and finally, the adult. In some forms of insect life the pupa stage is omitted. From the standpoint of the economic entomologist, insects may be divided into two groups: (1) Those that chew the tissues and (2) those that pierce the plant and suck the sap. The members of the first group have biting mouth parts and injure foliage by actually cutting Off small pieces of plant tissue and swallowing them. Obviously this class may be controlled by placing a stomach poison on the leaves so that it will be taken into the digestive system. It follows logically that insects of the second group must be held in check through some other kind of agency, since their food comes from within the plant. Hence the development of contact insecticides which kill by actual contact with the body. 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.