Author: Edith Marion Patch

Publisher: Forgotten Books

Published: 2017-10-18

Total Pages: 36

ISBN-13: 9780266472254

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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.

Download or read book ELM Leaf Curl and Woolly Apple Aphid (Classic Reprint) written by Edith Marion Patch and published by Forgotten Books. This book was released on 2017-10-18 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.