Sinopsis
Excerpt from The Codling Moth and How to Control It by Spraying
Introduction. Bulletin 131 of this Station issued in April, 1907, discussed Spraying the Apple Orchard both as regards insects and diseases, and was based upon our investigations in 1905 and 1906. Investigations of the codling moth were con tinned in 1907 and 1908 and have been described in detail in the Nineteenth and Twentieth Reports. The present bulletin will give the practical results of these studies in popular form.
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Reseña del editor
Excerpt from The Codling Moth and How to Control It by Spraying
Introduction. Bulletin 131 of this Station issued in April, 1907, discussed Spraying the Apple Orchard both as regards insects and diseases, and was based upon our investigations in 1905 and 1906. Investigations of the codling moth were con tinned in 1907 and 1908 and have been described in detail in the Nineteenth and Twentieth Reports. The present bulletin will give the practical results of these studies in popular form.
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.
Reseña del editor
Excerpt from The Codling Moth and How to Control It by Spraying
Only from 5 to 20 per cent. Of the larvae survive the winter. An examination of seven trees, which averaged 38 cocoons per tree in the fall, showed but 5 per cent. Alive in the spring, 87 per cent. Having been killed by birds, 4 per cent. By disease and 3 per cent. By cold. In another orchard cocoons were exam ined in May, 1907, with 19 per cent. Alive, 66 per cent. Having been killed by birds, 6 per cent. By disease and 9 per cent. By cold. It is quite evident that the birds, particularly the downy woodpeckers and the nuthatches are the most important enemies of the codling moth in New England and that they should be given every protection and be attracted to the orchard in every way possible.
The Transformation. During May or early June, the cater pillar opens the end of the cocoon and spins a silken tube from it to the surface. Then retiring to the cocoon, with its head towards the opening, it sheds its winter clothes, transforming into a pupa. The pupa is a dormant stage in which the insect has almost no power of motion, and shows but little sign of life, but during which wonderful changes in its structure are going on, so that from the old tissues of the worm-like larva are formed the organs of the active, winged moth. In 1906 pupation com menced May 7, the last larva did not pupate until early in June, but the average date was May 25. In June, 1907, the average date of pupation was June 16 or three weeks later, while in 1908 the average date was June 1, the first pupa being on May 20 and the last June 9. The time of pupation is therefore seen to vary greatly with the season, but with average weather condi tions to occur about June 1.
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.
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The Codling Moth and How to Control It by Spraying (Classic Reprint)
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Paperback. Condición: New. Print on Demand. This book delves into the intricate biology and behavior of the codling moth, a persistent pest in apple orchards. The author, a renowned entomologist, draws on extensive research and observations to provide an in-depth understanding of the moth's life cycle, feeding habits, and methods of dispersal. The book contextualizes the codling moth within the broader realm of entomology and agricultural practices, shedding light on its significance as an economic threat to apple production. The author goes beyond mere description, offering insights into the complexities of insect-plant interactions and the ecological dynamics that shape the codling moth's behavior. Through a combination of scientific rigor and accessible language, this book serves as a valuable resource for entomologists, orchardists, and anyone seeking to deepen their knowledge of this fascinating pest. It concludes by emphasizing the importance of understanding the codling moth's biology to develop effective management strategies and preserve the health of apple crops. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Nº de ref. del artículo: 9781333768195_0
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