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Inhaltsangabe
Excerpt from Elm Leaf Curl and Woolly Apple Aphid
Infestation from the woolly aphid was rendered impossible. Leaf curl from elm with pupae and alate forms were secured from the south some time before material at the same stage would. Be available here, and migration tests were made. The winged forms from the elm iwere caged over seedling apples, and their progeny, growing along creases where the thin bark is scaling back, in the axils Of the leaves and on exposed roots Of the apple seedlings, covered by typical fl-occulent white secretion, are unmistakably the woolly aphid of the apple. (fig. The colony in the figure just cited was started May 12 - 13, by migrants from elm leaf curl. Their progeny thrived from the first and the photograph was taken May 29, the day on which the first apter-ous generation on the apple began to give birth to young.
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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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Excerpt from Elm Leaf Curl and Woolly Apple Aphid
Infestation from the woolly aphid was rendered impossible. Leaf curl from elm with pupae and alate forms were secured from the south some time before material at the same stage would. Be available here, and migration tests were made. The winged forms from the elm iwere caged over seedling apples, and their progeny, growing along creases where the thin bark is scaling back, in the axils Of the leaves and on exposed roots Of the apple seedlings, covered by typical fl-occulent white secretion, are unmistakably the woolly aphid of the apple. (fig. The colony in the figure just cited was started May 12 - 13, by migrants from elm leaf curl. Their progeny thrived from the first and the photograph was taken May 29, the day on which the first apter-ous generation on the apple began to give birth to young.
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 Elm Leaf Curl and Woolly Apple Aphid
The economic application of the case in hand is apparently as direct and simple as the two just cited and since we are here concerned with one of the most serious of the apple tree pests, Papers from the Maine Agricultural Experiment Station: Entomol ogy no. 58.
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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- VerlagForgotten Books
- Erscheinungsdatum2018
- ISBN 10 1334002010
- ISBN 13 9781334002014
- EinbandTapa blanda
- SpracheEnglisch
- Anzahl der Seiten38
- Kontakt zum HerstellerNicht verfügbar
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Elm Leaf Curl and Woolly Apple Aphid Classic Reprint
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Elm Leaf Curl and Woolly Apple Aphid Classic Reprint
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PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000. Bestandsnummer des Verkäufers LX-9781334002014
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Paperback. Zustand: New. Print on Demand. This book is an in-depth analysis of elm leaf curl and the woolly apple aphid. It brings together a historical and literary context of Schizoneura americana and Schizoneura lanigera, with a particular focus on their dual personalities as pests on elms and apple trees. The author traces the discovery of the migration of woolly aphids from elm leaf curl to apple bark, revealing the vulnerability of young apple trees to infestations. The book delves into the economic significance of this discovery and its implications for nursery stock and young orchards. Throughout, the author provides a detailed account of the habits, characteristics, and life cycle of the aphids, examining the preventative and remedial measures that can be employed against them. With its comprehensive research and practical insights, this book is an essential resource for entomologists, nurserymen, and apple growers alike. 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 9781334002014_0
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