Fungi and Fungicides (Classic Reprint)
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| Partner: | buecher.de |
| Hersteller: | Forgotten Books (Horticulture, California; State Commissi) |
| Stand: | 2015-08-04 03:50:33 |
Produktbeschreibung
Excerpt from Fungi and Fungicides Growing plants are liable to the attacks not only of insects, but also of parasitic fungi. The peculiar maladies known as fungous diseases are produced by the rapid development of the parasitic fungi. It is estimated that in the United States alone the annual loss from these minute vegetable organisms runs into millions of dollars. Fungi belong to the so-called lower plants, among which are the toadstool, mushroom, molds, mildews, rusts, smuts, blights, etc. A fungus may attack only dead tissue or decaying matter, as is the case with mushrooms or toadstools, or it may attack only animal life, as is seen in the fungus which destroys the house fly and the chinch bug. But the most important class of parasitic fungi with which the fruit-grower has to deal are those which attack the live tissue of plant life - those which check the growth of trees, attack and spot fruit, and even cause an early decay or a total loss before the crop is harvested. Fungi are plants, much the same as trees, grass, etc., the only difference being that they do not have the green coloring matter, or chlorophyll, of the latter. The seeds, called spores, are more simple and are exceedingly minute (microscopic). They are produced in numbers which appear almost incredible to those not versed on the subject. Fungi are divided into two groups: the internal and the external. The internal fungi send their germ tubes into the skin of the leaf, fruit, branch, or root, and the branching threads (mycelium) develop entirely within the tissue of the host plant. This group includes some of our worst species, such as peach-leaf curl, anthracnose, brown rot, shothole fungus, and all the grain smuts. The external fungi are surface feeders, their mycelium spreading over the surface of the fruit, leaf, or branch, as the case may be, and are easily controlled by the use of sprays. To this group belong the powdery mildews of the apple, grape, rose, gooseberry, etc. 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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