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Excerpt from Tomato Diseases in California Treatment - The control of this disease has been thoroughly worked out in Eastern States for potatoes, and the same methods will no doubt prove effective here. Treatment consists in Spraying with Bordeaux mixture; in climates with frequent rains in summer this is done several times at regular intervals, in order to keep the Vines well covered with Spray at all times; In California this would not be necessary. Spray ing should be regulated entirely by the rainfall. If there is no rain there is no danger whatever of winter blight, and no need of spraying. 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.
Excerpt from The Culture of Tomatoes in California, With Special Reference to Their Diseases As the climatic conditions under which this crop is grown and the methods by which it is marketed are variable, no one type of tomato will be ideal in every tomato growing section of the United States or of this State. 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.
Excerpt from Tomato Production in California Fusarium Wilt - This disease is caused by a fungus living in the soil, which enters the plant through the roots. When the disease once gets into a field, it spreads rapidly in succeeding years. The disease is said to occur in many parts of the state. It usually appears a few weeks after the beginning of hot weather, the lower leaves of aflected plants turn yellow and dry up (fig. The stems, if split open reveal dark brown streaks in the woody portion. The disease advances rapidly and kills the entire plant, or sometimes only one of the main branches. There is no true wilting of the plant, in the ordinary sense of the word, connected with this disease. The control is to grow resistant varieties, of which the Norton seems best at present, though Marvel, an early variety, and Norduke, a late shipping sort, may be desirable under some conditions. These varieties were recently developed by the U. S. Department of Agri culture. Snmmer Blight (western Blight). - This trouble/ occurs very generally in the state and is known by several names. The cause is unknown. The disease usually appears about mid-summer and may gradually involve many plants during the season. Affected plants stop growing, the margins of the leaves roll upward, and the under sides become purplish. The leaves and tips of the stem gradually dry up, and eventually the whole plant dies. No satisfactory control measure can yet be recommended. Root-knot. - This trouble is caused by nematodes - microscopic worms which infest the soil and which enter the roots of tomatoes and many other plants, causing the characteristic swelling of the roots. Affected plants appear stunted and yellowed, and die slowly. The trouble can always be recognized by pulling up the plants and inspecting the roots. Extreme caution should be exercised by growers to prevent the introduction of the disease on vegetable plants or seed potatoes shipped from other sections. When once introduced into the soil, nematodes are very. Difficult to eradicate. Flooding the land for two or three months, thorough drying out of the soil over' summer, summer fallow, and growing resistant crops for two years are prac tices that have been recommended. The small grains, the Iron variety of cowpea, and the velvet bean are some of the crops resistant to nematodes. One Should always be sure that the soil used for plant beds is free from nematodes, for infected beds are often responsible for infecting a field and spreading the trouble. 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.
Excerpt from Tomato Diseases The grower must realize that a good many of the troubles affecting tomatoes, such as leaf spot, leaf mould, mosaic, wilts etc., may be started in, and spread from, the seed-bed. This means that special care should be taken to protect the small seedlings from becoming infected. TO this end the disinfected seed should be sown in clean or sterilized soil, which should be kept free from weeds. The seed should not be sown too densely, as a crowded seed-bed is more subject to damping-off. Also since a continuous damp surface in the seed-bed is favourable to damping-off it is good practice to have the soil Of the seed-bed covered with alight layer Of sand, so as to ensure a more rapid drying Of the surface soil. Preferably, seedlings should be grown under glass so that on successive cloudy, humid days the excess humidity may be more readily driven off by heat and proper ventilation. This is particularly applicable to the seed lings for the fall greenhouse crop, which are so Often severely attacked by the leaf mould fungus. Seedlings should not be grown in close proximity to weeds or Old plantings of tomatoes, or potatoes. As an added precaution tomato plants should be sprayed with Bordeaux while still in the seed-bed, or plant-bed, and before transplanting to the field or greenhouse. If the above simple measures are faithfully carried out the grower will then start with sound, healthy plants and under sanitary conditions in the field or greenhouse, will have gone a long way in avoiding tomato diseases. 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.
Excerpt from California Plant Diseases An important part of the work of every agricultural experiment station consists in the dissemination of useful information, as well as the carrying on of investigations seeking for new knowledge. It is the former phase of station work which is represented in the present bulletin. This publication is intended as a handbook of plant diseases occurring in California, giving a brief description of the nature of the principal troubles, together with directions for their control. Many miscellaneous and less important troubles are also described, the plan being to record all plant diseases of any possible interest which have been observed in California by members of the department. 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.
Excerpt from Important Tomato Insects of California Fig. 2. - The corn earworm. A, Eggs on tomato (courtesy of F. H. Wymore) B, full-grown caterpillars; C, pupae or chrysalids removed from the soil. 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.
Excerpt from The Leaf-Spot Disease of Tomato If the lower surface is the point of entry the spots are large and may involve one-half or the whole of a leaflet. If the upper surface is the point of entry the spots may be no larger than the head of a pin. Usually the upper leaves Show this latter type of infection, evidently from dust as a source. The lower leaves are infected from beneath, doubtless by splashings from the ground or from the older leaves. The fungus lives over winter on the trash from a preced ing tomato crop. It lives over in the greenhouses or cold frame in the trash from seedlings left in the soil. The spores have not been found on tomato seed. Hundreds of plants from all the common varieties have been grown in clean soil without one case of leaf-spot appearing spontaneously. The spores of the fungus are released from the spore case only when the leaf is wet. Heavy dews give conditions which allow an oozing of spores. By far the greatest factor in spreading the fungus is a washing, splashing rain. There fore, the disease is most serious in a rainy season such as that of 1915. Many growers make the mistake in thinking that the tomato disease is caused by the weather, while the truth is that the disease is caused by'a parasite whose spread is favored by the wet conditions. 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.
Excerpt from Market Diseases of Fruits and Vegetables: Tomatoes, Peppers, Eggplants The tomato plant is subject to a great many Of the diseases that attack other members of the nightshade family. In addition the fruit especially is subject to a considerable number Of specific maladies. 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.
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.