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Excerpt from Orchard Insects of the Pacific Northwest and Their Control
The larva or worm is the only injurious stage of the codling moth, and the only injury of consequence is to the fruit. The young worms, upon hatching from the eggs, crawl to the nearest fruit and burrow into it, producing the familiar wormy apple or pear. Many worms enter through the calyx end, Where the calyx affords them protection and they can easily obtain a foothold. Many others enter at the pomt Where two fruits touch, or Where a leaf is ih' contact with a fruit. Still others are able to burrow into the exposed side of the fruit. The worm penetrates the skin and excavates a small cavity beneath it in an hour or so. It remains near the surface for a few days and then burrows to the center of the fruit, usually feeding chiefly on the seeds and Core. When full grown the worm makes a large tunnel to the surface through which it leaves the fruit. Wormy fruit is of small commercial value, since it will not keep long, and the laws of some States forbid its being shipped, except to byproducts p ants.
A form of injury other than the tunneling is the sting (fig. Caused by a worm that started to burrow into the fruit and then died, usually as the result of feeding on poison spray On the fruit.
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Orchard Insects of the Pacific Northwest and Their Control (Classic Reprint)
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Paperback. Zustand: New. Print on Demand. This book offers a comprehensive guide to the most common insect pests found in orchards of the Pacific Northwest, providing crucial information for growers to protect their crops. The author, an expert entomologist, shares insights gained from extensive research on the habits, lifecycles, and effective control methods for these pests. By examining the history and significance of insect infestations in the region, the book establishes a context for understanding the challenges faced by orchardists. Delving into the thematic depth of insect control, the book explores various approaches, including the use of sprays, natural predators, and cultural practices. It emphasizes the importance of proper timing and thorough application of treatments to maximize their effectiveness while minimizing environmental impact. The author also highlights the role of integrated pest management in developing sustainable and environmentally sound strategies for long-term orchard health. Overall, this book's practical guidance and in-depth analysis make it an invaluable resource for orchardists seeking to safeguard their crops and ensure the continued productivity of the Pacific Northwest's fruit industry. 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. Bestandsnummer des Verkäufers 9781527831049_0
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