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U S Department Of Agriculture Bureau Of Entomology
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Book Synopsis Agricultural Statistics by : United States. Department of Agriculture
Download or read book Agricultural Statistics written by United States. Department of Agriculture and published by . This book was released on 1991 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Insect and Mite Pests in Food written by and published by . This book was released on 1991 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Letter of the Bureau of Entomology, United States Department of Agriculture by : United States. Bureau of Entomology
Download or read book Monthly Letter of the Bureau of Entomology, United States Department of Agriculture written by United States. Bureau of Entomology and published by . This book was released on 1926 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Screw-worm written by Mark Francis and published by . This book was released on 1890 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis On Entomological Publications of the United States Government by : Joseph Sanford Wade
Download or read book On Entomological Publications of the United States Government written by Joseph Sanford Wade and published by . This book was released on 1923 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis List of Available Publications of the United States Department of Agriculture by :
Download or read book List of Available Publications of the United States Department of Agriculture written by and published by . This book was released on 1951 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Official Record of the United States Department of Agriculture by : United States. Department of Agriculture
Download or read book The Official Record of the United States Department of Agriculture written by United States. Department of Agriculture and published by . This book was released on 1929 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Status of Pollinators in North America by : National Research Council
Download or read book Status of Pollinators in North America written by National Research Council and published by National Academies Press. This book was released on 2007-05-13 with total page 327 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pollinators-insects, birds, bats, and other animals that carry pollen from the male to the female parts of flowers for plant reproduction-are an essential part of natural and agricultural ecosystems throughout North America. For example, most fruit, vegetable, and seed crops and some crops that provide fiber, drugs, and fuel depend on animals for pollination. This report provides evidence for the decline of some pollinator species in North America, including America's most important managed pollinator, the honey bee, as well as some butterflies, bats, and hummingbirds. For most managed and wild pollinator species, however, population trends have not been assessed because populations have not been monitored over time. In addition, for wild species with demonstrated declines, it is often difficult to determine the causes or consequences of their decline. This report outlines priorities for research and monitoring that are needed to improve information on the status of pollinators and establishes a framework for conservation and restoration of pollinator species and communities.
Book Synopsis Circular - United States Department of Agriculture by : United States. Department of Agriculture
Download or read book Circular - United States Department of Agriculture written by United States. Department of Agriculture and published by . This book was released on 1936 with total page 1052 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Pesticide Use in U.S. Agriculture by : Jorge Fernandez-Cornejo
Download or read book Pesticide Use in U.S. Agriculture written by Jorge Fernandez-Cornejo and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pesticide use has changed considerably over the past five decades. Rapid growth characterized the first 20 years, ending in 1981. The total quantity of pesticides applied to the 21 crops analyzed grew from 196 million pounds of pesticide active ingredients in 1960 to 632 million pounds in 1981. Improvements in the types and modes of action of active ingredients applied along with small annual fluctuations resulted in a slight downward trend in pesticide use to 516 million pounds in 2008. These changes were driven by economic factors that determined crop and input prices and were influenced by pest pressures, environmental and weather conditions, crop acreages, agricultural practices (including adoption of genetically engineered crops), access to land-grant extension personnel and crop consultants, the cost-effectiveness of pesticides and other practices in protecting crop yields and quality, technological innovations in pest management systems/practices, and environmental and health regulations. Emerging pest management policy issues include the development of glyphosate-resistant weed populations associated with the large increase in glyphosate use since the late 1990s, the development of Bt-resistant western corn rootworm in some areas, and the arrival of invasive or exotic pest species, such as soybean aphid and soybean rust, which can influence pesticide use patterns and the development of Integrated Pest Management programs.
Book Synopsis Bulletin of the U.S. Department of Agriculture by :
Download or read book Bulletin of the U.S. Department of Agriculture written by and published by . This book was released on 1926 with total page 854 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Oregon Blue Book by : Oregon. Office of the Secretary of State
Download or read book Oregon Blue Book written by Oregon. Office of the Secretary of State and published by . This book was released on 1917 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Some Miscellaneous Results of the Work of the Division of Entomology by :
Download or read book Some Miscellaneous Results of the Work of the Division of Entomology written by and published by . This book was released on 1907 with total page 1018 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Silken Thread by : Robert N. Wiedenmann
Download or read book The Silken Thread written by Robert N. Wiedenmann and published by Oxford University Press. This book was released on 2021 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Insects are seldom mentioned in history texts, yet they significantly shaped human history. The Silken Thread: Five Insects and Their Impacts on History tells the stories of just five insects, tied together by a thread originating in the Silk Roads of Asia, and how they have impacted our world. Silkworms have been farmed to produce silk for millennia, creating a history of empires and cultural exchanges; Silk Roads connected East to West, generating trade centers and transferring ideas, philosophies, and religions. The western honey bee feeds countless people, and their crop pollination is worth billions of dollars. Fleas and lice carried bacteria that caused three major plague pandemics, moved along the Silk Roads from Central Asia. Bacteria carried by insects left their ancient clues as DNA embedded in victims' teeth. Lice caused outbreaks of typhus, especially in crowded conditions such as prisons and concentration camps. Typhus aggravated the effects of the Irish potato famine, and Irish refugees took typhus to North America. Yellow fever was transported to the Americas via the trans-Atlantic slave trade, taking and devaluing the lives of millions of Africans. Slaves were brought to the Americas to reduce labor costs in the cultivation of sugarcane, which was itself transported from south Asia along the Silk Roads. Yellow fever caused panic in the United States in the 1700s and 1800s as the virus and its mosquito vector migrated from the Caribbean. Constructing the Panama Canal required defeating mosquitoes that transmitted yellow fever. The silken thread runs through and ties together these five insects and their impacts on history"--
Book Synopsis Blue Book and Official Directory by :
Download or read book Blue Book and Official Directory written by and published by . This book was released on 1913 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Journal of the Washington Academy of Sciences by : Washington Academy of Sciences (Washington, D.C.)
Download or read book Journal of the Washington Academy of Sciences written by Washington Academy of Sciences (Washington, D.C.) and published by . This book was released on 1919 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt: Its Directory issued as the Sept. no., 1926-67.
Book Synopsis List of manuscript bibliographies and indexes in the U. S. Department of by : Elise Lucy Ogden
Download or read book List of manuscript bibliographies and indexes in the U. S. Department of written by Elise Lucy Ogden and published by . This book was released on 1926 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: