Field and Laboratory Techniques for Evaluating Hemlock Sawfly Infestations (Classic Reprint) - Softcover
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Excerpt from Field and Laboratory Techniques for Evaluating Hemlock Sawfly Infestations
Figure 2.-feeding colony of early instar hemlock sawfly larvae. Note-character of needles which have been fed upon.
Figure 3. - ~hemlock sawfly cocoon showing the evenly cut margin of cap resulting from normal sawfly emergence.
Figure 4.-severe defoliation of mature western hemlock caused by hemlock sawfly.
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Field and Laboratory Techniques for Evaluating Hemlock Sawfly Infestations
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Paperback. Zustand: New. Print on Demand. This book is a detailed guide to understanding and managing infestations of the hemlock sawfly, a major defoliator of western hemlock trees in southeastern Alaska. It is a valuable tool for pest management specialists, providing field and laboratory techniques to assess infestation intensity, determine population parameters such as survival, sex ratio, and fecundity, and identify specific sources of mortality. The author presents a comprehensive overview of the hemlock sawfly's biology, including its life cycle, feeding habits, and the factors influencing its population dynamics. By incorporating this information into their management strategies, forest resource managers can make informed decisions to protect valuable hemlock stands and minimize the impact of sawfly infestations. 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 9780260614636_0
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