Download or read book Investigations of Caterpillars Attacking Tomatoes in Northern California During 1939 written by Abe Ezra Michelbacher and published by . This book was released on 1940 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigations of Caterpillars Attacking Tomatoes in Northern California During 1939 Vol 644 Classic Reprint written by Abe Ezra Michelbacher and published by Forgotten Books. This book was released on 2017-11-10 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Investigations of Caterpillars Attacking Tomatoes in Northern California During 1939, Vol. 644 Amount and Persistence of Insecticide on Foliage - The frequency with which an insecticide must be used is influenced by the amount of toxic substance applied, its persistence upon the treated plants, and plant growth. In order to determine the persistence of the calcium arse nate and the cryolite used in the present experiments, samples of tomato leaves were taken from treated vines at six different times during the harvest season. Five leaves were removed at random from each of the four replications of a given treatment, placed in a paper bag, and brought to the laboratory with minimum disturbance. 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 Investigations of Caterpillars Attacking Tomatoes in Northern California During 1939 written by and published by . This book was released on 1940 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigations of Caterpillars Attacking Tomatoes in Northern California During 1939 A E Michelbacher G F MacLeod and W M Hoskins written by A. E.. Michelbacher and published by . This book was released on 1940 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigations of the Tomato Fruitworm written by Joseph Wilcox and published by . This book was released on 1956 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: The tomato fruitworm (Heliothis zea (Boddie) is the most serious pest of tomatoes in the United States, particularly in the southern half of the country where it does some damage every season. This insect is also injurious to beans, cabbage, lettuce, pepper, tobacco, and other cultivated crops, and is one of the most, if not the most, destructive pest to agricultural crops in the country. Interest in improvement of methods for the control of this insect on tomatoes was accelerated in 1935 by the finding of worm fragments in canned products, which were subsequently seized and destroyed as contaminated foods by the United States Food and Drug Administration. Studies on the seasonal history and control of the tomato fruitworm on tomatoes were conducted in southern California, Utah, and Ohio beginning in 1936. This bulletin reports some of the major findings. Most of the data are from the California experiments; results from Utah and Ohio are so indicated.
Download or read book List of Bulletins of the Agricultural Experiment Stations for the Calendar Years 1939 and 1940 written by Catherine Emma Pennington and published by . This book was released on 1941 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book List of Bulletins of the Agricultural Experiment Stations in the United States from Their Establishment to the End of written by and published by . This book was released on 1937 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book List of Bulletins of the Agricultural Experiment Stations written by United States. Department of Agriculture. Library and published by . This book was released on 1927 with total page 770 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Caterpillars Attacking Tomatoes Classic Reprint written by Abe Ezra Michelbacher and published by Forgotten Books. This book was released on 2018-04-05 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Caterpillars Attacking Tomatoes This investigation has been limited to the northern tomato-growing sections of the state and the results and conclusions are based upon these findings. The problems of the tomato growers in southern California are undoubtedly different from those encountered in this area; these prob lems are being investigated by the United States Department of Agri culture Bureau oi Entomology and Plant Quarantine at Alhambra. 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 Miscellaneous Publication written by and published by . This book was released on 1941 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigations in Erosion Control and Reclamation of Eroded Land at the Red Plains Conservation Experiment Station Guthrie Okla 1930 40 written by F. W. Poos and published by . This book was released on 1944 with total page 1152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report of the Agricultural Experiment Station of the University of California written by and published by . This book was released on 1948 with total page 724 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report of the Agricultural Experiment Station of the University of California written by California Agricultural Experiment Station and published by . This book was released on 1948 with total page 718 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigations in the Sulfuring of Fruits for Drying written by James Dewey Long and published by . This book was released on 1940 with total page 1574 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Experiment Station Record written by United States. Office of Experiment Stations and published by . This book was released on 1940 with total page 1074 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Some Studies on the Life History of the Tomato Pinworm Keiferia Lycopersicella Busck written by Arthur Joseph Walz and published by . This book was released on 1948 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Experiment Station Record written by U.S. Office of Experiment Stations and published by . This book was released on 1941 with total page 1046 pages. Available in PDF, EPUB and Kindle. Book excerpt:
