Download or read book The Diseases and Pests of the Rubber Tree written by Thomas Petch and published by . This book was released on 1921 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: General sanitation. Root diseases. Leaf diseases. Phytophthora diseases. Stem diseases. Non-parasitic diseases, abnormalites, etc. Prepared rubber. Pests of Hevea. Miscellanea. Fungi on Hevea.

Download or read book The Diseases and Pests of the Rubber Tree Classic Reprint written by T. Petch and published by . This book was released on 2015-09-27 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Diseases and Pests of the Rubber Tree In 1911 the diseases which were known to attack the rubber tree were described in The Physiology and Diseases of Hevea brasiliensis. The number of recorded diseases was then comparatively small, and it was possible to include with them a general account of the structure and physiology of the tree, and a summary of those tapping experiments which promised to afford a foundation for a theory of rubber tapping. That book has now been out of print for some time, and several inquirers have suggested the issue of a second edition. But the number of known diseases of Hevea has, unfortunately, been considerably extended during the last eight years, while the work of numerous investigators in this field has added largely to our knowledge of both old and new ones. Consequently, rubber diseases now demand a volume to themselves; and it has therefore been decided to divide the subject-matter of the former book, and to publish a separate account, revised and brought up to date, of the diseases and pests only. It is hoped that it will be possible, at some future date, to deal similarly with the other half of the original volume. As the book is intended primarily for the rubber planter, technical botanical details have been avoided as much as possible. It is not practicable to exclude them altogether, nor, indeed, is that necessary, for rubber cultivation has made the planter familiar with technical botanical terms to a degree hitherto unknown in tropical agriculture. 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 Diseases and Pests of the Rubber Tree written by Arnold Sharples and published by . This book was released on 1936 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: General remarks on plant diseases, structure, reproduction, and physiology of Fungi. Diseases and pests. Tapping panel affections. Stem diseases. Leaf diseases. Scorching and after-effects, and miscellaneous.

Download or read book DISEASES PESTS OF THE RUBBER written by Thomas 1870?-1948 Petch and published by Wentworth Press. This book was released on 2016-08-25 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Download or read book The Diseases and Pests of the Rubber Tree written by Thomas Petch and published by . This book was released on 2017-08-22 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Diseases and Pests of the Rubber Tree c written by Tom Petch and published by . This book was released on 1921 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Diseases and Pests of the Rubber Tree Primary Source Edition written by Thomas Petch and published by Nabu Press. This book was released on 2014-02 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book.

Download or read book Injurious Insects and Plant Diseases Classic Reprint written by A. D. Hopkins and published by Forgotten Books. This book was released on 2016-12-06 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Injurious Insects and Plant Diseases Therefore, if a strange insect makes its appearance threatening the destruction of some plant or crop, before selecting a method to repel or destroy it, it is first necessary to ascertain how it feeds. If it belongs to the first division, and like the potato beetle, eat the leaves, it may be easily destroyed by Paris green applied to its food substance, either in a powder or liquid, as the poison will be eaten by them with their 'food. 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 Text Book of the Diseases of Trees Classic Reprint written by Robert Hartig and published by Forgotten Books. This book was released on 2018-01-18 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Text-Book of the Diseases of Trees Some fifty years ago a number of able investigators, of whom only Saxesen, Th. Hartig, and Ratzeburg need be named here, applied themselves to the study of insects. The life-history of forest insects, their harmfulness or usefulness, soon became the favourite study of many practical foresters, and in a few decades the joint efforts of numerous workers were rewarded by the elevation of Forest Entomology to the position of a much appreciated subject of scientific instruction, which has become the common property of all educated foresters. The case was otherwise with those plant-diseases which cannot be ascribed to the injuries of animals. Their investi gation was delayed until quite recently; for it was only after botanical science, by the aid of its chief instrument, the microscope, had obtained a clear insight into the normal strue ture and vital phenomena of plants, and especially after the study of fungi had been prosecuted in the last few decades by a series of distinguished investigators, that the examination of the phenomena of disease in the life of plants could be undertaken with a prospect of success. 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 Plant Disease and Pest Control Classic Reprint written by William Titus Horne and published by Forgotten Books. This book was released on 2017-10-28 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Plant Disease and Pest Control Unfruitfulness. - Usually due to frost or to rain at blooming time, or to lack of a suitable mixture of varieties for cross pollination (most varieties are self-sterile), or to the lack of bees for carrying pollen, or to weakness from red spider or other injury the previous year. The selection of suitable soils and thermal belt situations offer some difficult problems for the almond. See Frost under General Subjects, p. 55. 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 Manual of Tree Diseases Classic Reprint written by William Howard Rankin and published by Forgotten Books. This book was released on 2018-03-08 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Manual of Tree Diseases Tm: steadily accumulating knowledge of the diseases of trees in the United States has never been brought together and made available to the general public. The intention of this Manual is to describe and suggest means of control for the tree diseases that have been most studied. Much remains to be learned about many of these diseases, and still many more have never been investigated. Therefore, in the treatment of this subject there are many unavoidable limitations which the trained reader will perceive. The diseases of fruit-trees, and of field and vegetable crops, have received the attention of plant pathologists in most parts of the country for many years. The results of these investigations have been made available to the growers of these crops in various ways. On the other hand, the diseases of forest, shade, and ornamental trees have been largely neglected until very recently. 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 South American Leaf Disease of Para Rubber Classic Reprint written by Robert Delafield Rands and published by Forgotten Books. This book was released on 2018-09-12 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from South American Leaf Disease of Para Rubber The literature contains no further reference to this disease until 1910, when A. W. Drost (6) briefly described a leaf trouble on nursery plants at Paramaribo, Dutch Guiana. Drost observed, in addition to pycnidia, a Ramularia-like conidial stage, but made no further effort toward its identification. His description of the symptoms, however, leaves little doubt that he was dealing with the disease in question. It was considered indigenous, having been found on the related Heuea guyanensis in its native habitat in the forests. In addition to the leaves, it was observed to attack young stems and twigs, causing warty swellings. The trouble was not considered serious. 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 Collected Leaflets on Fungus Pests and Allied Diseases of Fruit Trees Classic Reprint written by Ministry Of Agriculture And Fisheries and published by Forgotten Books. This book was released on 2018-02-08 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Collected Leaflets on Fungus Pests and Allied Diseases of Fruit Trees Unlike insect pests, which are for the most part more or less clearly understood, there is often a certain mystery in the public mind connected with fungi. Their strange form, sudden appear ance and devastating habits are not readily explainable. To the practical fruit grower painful familiarity with their presence soon robs fungus parasites of any mysterious charm, and, by force of circumstances, he is compelled to study them, if it be only their mode of attacking plants and the best methods of keeping them at bay. Whether, however, the origin and} habits are understood or not, it may not be inadvisable to point out at the commencement of this volume the main outlines of the life of any ordinary fungus. 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 Handbook of Plant Disease and Pest Control Classic Reprint written by Ralph E. Smith and published by Forgotten Books. This book was released on 2017-10-28 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Handbook of Plant Disease and Pest Control Blight - See Pear. Remove all worthless apple trees near orchards of pear or apple. Scab - Spray with Bordeaux mixture (formula or lime-sulfur 1 - 20, just before blossoms open. Again with lime-sulfur 1 - 35 when petals are falling. Mildew - Cut out mildewed twigs as thoroughly as possible. Use lime-sulfur for scab spraying or if scab is not serious use sulfur paste, 16 pounds to 200 gallons of water (or home-made wettable sulfur Spray, Formula 13 or 14) when petals are falling. Later spraying for mildew may be made with the same material. Sulfur Sprays cause injury to apple trees in some sections. 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 Diseases and Pests of Cultivated Plants Vol 6 written by J. W. Eastham and published by Forgotten Books. This book was released on 2017-12-21 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Diseases and Pests of Cultivated Plants, Vol. 6: Sprays and Spraying Collect and burn diseased parts of plants, crop refuse, prunings, etc. Many parasitic or partially parasitic fungi can exist for an indefinite time as saprophytes on such material, only waiting the opportunity to once more attack living plants. Such refuse also harbours all manner of insect pests. 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 Insect Pests and Plant Diseases written by British Columbia Agriculture Department and published by Forgotten Books. This book was released on 2017-10-31 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Insect Pests and Plant Diseases: Containing Remedies and Suggestions Recommended for Adoption by Farmers, Fruit-Growers, and Gardeners of the Province There is probably no one general method by which the farmer or fruit-grower can do more to protect his crops from insect injury than by clean culture. A large proportion of injurious insects pass the winter under rubbish of many sorts, and the burning of this will destroy them. It is a safe rule, whenever a crop is gathered, to clear off the remnant-s and destroy them as completely as possible. In orchards this recommendation is Of special value. In dead wood on the trees, or on the ground, many species hide or complete their development during the winter. Every dead branch or twig should be cut, and with other rubbish taken out and burned. Loose' bark is of little or no value to a tree, while it affords shelter to many hibernating species. Never leave an Old wood-pile near an orchard. Many insects breed preferably in dead wood, but when it becomes too dry or rotten, they have a sharp instinct that enables them to discover a weak or sickly tree, and this they may attack and ruin, where otherwise it might recover. Fallen or diseased fruit should always be destroyed or fed to hogs. Field and orchard should contain, as nearly as possible, nothing save the crop, and certainly neither rubbish nor remnants. For field crops, a thorough system of crop rotation prevents the multiplication of many insect pests and plant diseases. It is a well established general rule that plants or trees are better able to resist insect attack when in a thrifty growing condition than when weak in vitality; consequently, such fertilisation as will bring about the healthiest growth is desirable. It has long been Observed that some varieties of fruits, vegetables and grains are more subject to insect attacks than others. Consequently, other things being equal, it is advisable to select such varieties for planting. Of mechanical methods, the simplest way of dealing with many insects, is to pick them off by hand; in the garden and home grounds, caterpillars of most kinds may be easily dealt with so, or their nests destroyed, in the case of those having such. 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 Insect Enemies and Diseases of the Tomato Classic Reprint written by Ola Powell and published by Forgotten Books. This book was released on 2017-10-21 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Insect Enemies and Diseases of the Tomato Club members need and have asked for sim ple, reliable instructions for controlling the insect pests and diseases which come to the plants in their club gardens. These instructions are writ ten to aid the club girls of the Southern States in preventing or controlling the damage done by these enemies of their gardens. 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.