Download or read book Research on the Control of Alligatorweed and Other Aquatic Weeds written by United States. Agricultural Research Service and published by . This book was released on 1965 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research on the Control of Alligatorweed and Other Aquatic Weeds written by United States. Agricultural Research Service and published by . This book was released on 1963 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biological Control of Alligatorweed 1959 1972 written by Jack R. Coulson and published by . This book was released on 1977 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Control of Aquatic Vegetation in Freshwater written by and published by . This book was released on 1972 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aquatic Plant Control Program written by and published by . This book was released on 1973 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: The greatest success with the Agasicles as a biocontrol for alligator weed has been at experimental sites in Florida. The increased effectiveness of the alligator weed beetle in this area is believed to be related to the ability of the insect to overwinter. The Agasicles population usually has two peaks of activity in Florida as compared with one in other states. Alligator weed mats present at the beginning of the study reported herein have decreased in size and thickness. Plant competition has played an important role in controlling the alligator weed at the Goose Creek site by Agasicles and at several other sites in the southeastern states. The feeding of the Agasicles on alligator weed decreases its ability to compete with other aquatic plants. Other insects may be used to extend control over a greater geographic area. (Author).
Download or read book Weed Control Methods for River Basin Management written by E.O. Gangstad and published by CRC Press. This book was released on 2018-05-04 with total page 245 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aquatic plants continue to create problems associated with navigation, flood control, agriculture, irrigation and drainage, values of lands, conservation of wildlife and fisheries, and water resource supply. While much research is being done to find more effective and economic control measures, there is now a great need to apply known facts to achieve a measure of control by the means available. It is the purpose of this volume to provide a scientifically documented treatise of the known facts as they apply to the control of aquatic weeds in river basins and their allied waterways with particular emphasis on alligator weed and water hyacinth.
Download or read book Statewide Aquatic Plant Control and Eradication of Water Hyacinth and Alligator Weed written by and published by . This book was released on 1972 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aquatic Plant Control Program written by and published by . This book was released on 1975 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of herbicides coordinated with insect-feeding damage as a method for alligator weed management is discussed. Detailed studies on the integrated control method include the details of the research program relating to an integrated approach, the effects of water quality on the distribution of alligator weed and water hyacinth, the effects of water hardness on herbicide toxicity, and the evaluation of promising herbicides for the control of alligator weed and water lettuce. Color illustrations reproduced in black and white.
Download or read book Aquatic Plant Control Research Program Alligatorweed Survey of Ten Southern States written by Alfred F Confrancesco (Jr) and published by . This book was released on 1988 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: Alligatorweed (Alternanthera philoxeroides (Mart.) Griseb.) is an exotic South American plant introduced into the United States prior to 1897. It rapidly developed into problem levels throughout most southern states, where it outcompetes native vegetation and interferes with navigation and recreational use of waterways. Three biological control agents Agasicles hygrophila (Selman and Vogt), Amynothrips andersoni (O'Neill) and Vogita malloi (Pastrana) were released in the United States between 1964 and 1970 for the control of alligatorweed. A review of the releases and population development of these insect species was conducted through 1972 by US Department of Agriculture scientists. The objectives of this study were to: (a) determine the current extent of the alligatorweed population in each state and ascertain whether or not it occurred at problem levels, (b) define the current population levels of biocontrol agents at selected original release sites and assess their impacts on the alligatorweed population, (c) describe the current distribution of each species of biocontrol agent in each state, (d) identify environmental factors influencing the effectiveness of each biocontrol agent, and (e) provide recommendations for managers to enhance the effectiveness of each biocontrol agent in areas where control has not been achieved. Keywords: Biological weed control; Aquatic weeds. (kt).
Download or read book Weed Control Methods for Public Health Applications written by E.O. Gangstad and published by CRC Press. This book was released on 2018-05-04 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume includes measures of control of aquatic vegetation that harms human health, since water-related diseases exist in this environment. Although malaria has receded internationally due to the combined chemotherapeutic-insecticidal programs, recently it has resisted both medicines and insecticide control. Active malaria cases in the U.S. were fewer than a dozen before the Vietnam War, but in 1973 the figure was ab out 700, almost all traceable to returning military personnel. The disease could again become prevalent. Other diseases exist whose transmission is indirectly affected by aquatic weed conditions including filariasis, and various trematodiases, especially from the schistosomes, Chinese liver fluke, cattle liver fluke, Guinea worm, giant intestinal fluke, Asiatic lung fluke, and broad tapeworm. Waterweeds also support disease-pest arthropods, i.e., snipe flies, tabanids (horse, gad, deer, and greenheads), Clear Lake gnats, Mayflies, black flies, sandflies, and sewage flies.Ecosystem studies of impounded water research and development of herbivorous fish, and utilization of herbivorous fish in China, are also included in this volume.
Download or read book Biological Control of Aquatic Nuisances written by Gerald S. Schuytema and published by . This book was released on 1977 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Summary Review of Investigations on Alligatorweed and Its Control written by Lyle W. Weldon and published by . This book was released on 1960 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Expanded Project for Aquatic Plant Control written by United States. Army. Corps of Engineers and published by . This book was released on 1965 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aquatic Plant Control Program written by and published by . This book was released on 1974 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: Detailed studies are reported on the practical use of 2,4-D for control of water hyacinth; criteria for registration; toxicology, persistence, and mobility of phenoxy herbicides; herbicide residue; dissipation of 2,4-D in potable water resources; and integrated control of water hyacinth and alligator weed.
Download or read book An Annual Report of the Control of Alligator Weed and Other Aquatic Plants written by Frederick William Zur Burg and published by . This book was released on 1966 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Weed Control Methods For Recreation Facilities Management written by Gangstad and published by CRC Press. This book was released on 2018-01-18 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is the purpose of this volume to survey and assess the management problems of recreation waters and to present case problems from the field in which the technical data, published literature, and the operations mechanics are given in sufficient detail to provide a format for practical analysis and application. Special emphasis has been given to measures of control of Eurasian watermilfoil.The primary and secondary uses of a body of water determine the need, frequency, and kind of aquatic plant control required to meet the needs of a specific situation. That is to say, a given body of water may be used primarily, or even exclusively for such activities as fishing, boating, or swimming, and the water itself may be used for domestic (potable water), industrial production, and/or agriculture. These uses may seem to be incompatible in themselves, but it is incumbent upon management to supply the optimum conditions for total water use.
Download or read book Proceedings Research Planning Conference on the Aquatic Plant Control Program written by and published by . This book was released on 1978 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:
