Download or read book Aquatic Plant Control Research Program Chemical Control of Hydrilla in Flowing Water Herbicide Uptake Characteristics and Concentrations Versus Exposure written by Thai K. Van and published by . This book was released on 1988 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most alternative techniques for management of hydrilla (Hydrilla verticillata (L.f.) Royle) have been developed for lentic systems, and thus their use in flowing water is usually limited. Control of hydrilla in flowing water is difficult because the herbicide may be in contact with the plant for a matter of hours or minutes before being swept away by the current. This study was conducted to develop strategies for hydrilla control in flowing water. Specific objectives were: (a) to determine the susceptibility of the monoecious hydrilla to registered aquatic herbicides, (b) to provide information on the minimum contact time required for control of monoecious and dioecious hydrilla with diquat, endothall, and fluridone, and (c) to examine time-course uptake characteristics of these herbicides by hydrilla. All results presented in this report were from laboratory studies and should be verified and field trials in natural environments. Keywords: Aquatic plants; Weed control; Marine biology; Herbicides; Diquat; Endothall; Fluridone.

Download or read book Chemical Control of Hydrilla in Flowing Water written by Thai K. Van and published by . This book was released on 1988 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Improving Technology for Chemical Control of Aquatic Plants written by Kerry K. Steward and published by . This book was released on 1982 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings 21st Annual Meeting Aquatic Plant Control Research Program written by Aquatic Plant Control Research Program (U.S. Army Engineer Waterways Experiment Station). Meeting and published by . This book was released on 1987 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book US Department of Agriculture Corps of Engineers Cooperative Aquatic Plant Control Research Annual Report for FY 1983 written by Thai K. Van and published by . This book was released on 1985 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings 28th Annual Meeting Aquatic Plant Control Research Program written by Aquatic Plant Control Research Program (U.S. Army Engineer Waterways Experiment Station). Meeting and published by . This book was released on 1994 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hydrilla written by Stratford H. Kay and published by . This book was released on 1992 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S Department of Agriculture Corps of Engineers Cooperative Aquatic Plant Control Research Annual Report for FY 1981 written by Aquatic Plant Management Laboratory (U.S.). and published by . This book was released on 1983 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hydrilla in the Potomac River and Tributaries MD VA DC written by and published by . This book was released on 1986 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings 27th Annual Meeting Aquatic Plant Control Research Program written by Aquatic Plant Control Research Program (U.S. Army Engineer Waterways Experiment Station). Meeting and published by . This book was released on 1993 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S Department of Agriculture Corps of Engineers Cooperative Aquatic Plant Control Research Annual Report for FY 1982 written by United States. Agricultural Research Service. Southern Region and published by . This book was released on 1984 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Catalog of Research in Aquatic Pest Control and Pesticide Residues in Aquatic Environments written by Smithsonian Science Information Exchange and published by . This book was released on 1972 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book US Department of Agriculture Corps of Engineers Cooperative Aquatic Plant Control Research Annual Report for FY 1983 Chemical Control Technology written by Thai K. Van and published by . This book was released on 1985 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: Of the several controlled release herbicide formulations evaluated in FY83, two monolithic polycaprolactone fibers containing fluridone have been found to have significant potential. These fibers, designed to maintain herbicide-plant contact over a period of four to six weeks, were proven effective in controlling hydrilla (Hydrilla verticillata Royle) at 2.2 kg a.i./ha (active ingredient per hectare) in flowing water in large outdoor aquaria. Under the same conditions, the commercial formulation Sonar 4AS provided no hydrilla control. Two silicate capsules of dichlobenil showed promising results in the laboratory and were selected for evaluations in large outdoor aquaria in which long-term control of hydrilla regrowth was assessed. Research concerning application of glyphosate indicated that decreasing carrier volume increased phytotoxicity of glyphosate to waterhyacinth, mainly by enhancing herbicide retention and penetration. A treatment of 1.7 kg a.e./ha (acid equivalent per hectare) glyphosate in 438 L/ha water carrier resulted in faster and longer lasting control than did 2.8 kg a.e./ha in 935 L/ha. Long-term effects from glyphosate on torpedograss in standing water were significantly reduced compared to activity achieved on ditchbanks. Studies with 14C-glyphosate indicated that herbicide translocation was impeded in standing water. Sulfumeturon at 0.02 kg a.i./ha completely eradicated waterhyacinth in a 0.07-ha pond in Fort Lauderdale. Residue analyses indicated that levels of 1.3 to 1.6 microgram/L sulfumeturon were present in water 24 hr after application; then decreased rapidly.

Download or read book List of Publications of the U S Army Engineer Waterways Experiment Station written by U.S. Army Engineer Waterways Experiment Station and published by . This book was released on 1993 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Aquatic Pest Control written by Patrick J. Marer and published by UCANR Publications. This book was released on 2001 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: If you oversee a lake, pond, or other aquatic environment—natural or man-made—this guide is for you! This easy-to-use reference manual and study guide covers diverse aquatic environments including natural marshes, wetlands, and deltas; irrigation canals and levees; ornamental ponds in parks and golf courses; hatcheries and recreational waters; and municipal water supplies and drinking water reservoirs. Chapters include information on: • Identifying weeds in the aquatic environment • Methods of controlling aquatic weeds • Identifying and controlling other pests in the aquatic environment • Laws regulating aquatic environments, pesticide use, and protected species • Reading and understanding pesticide labels • Mixing and applying pesticides safely • Selecting and calibrating aquatic herbicide application equipment • How to recognize and prevent pesticide poisoning • How to handle pesticide emergencies Profusely illustrated with 54 illustrations and over 100 photographs, this reference manual also has 8 tables and 31 sidebars that expand on important points and provide calculation formulas. A helpful glossary and thorough index round out this study tool. This is the recommended study guide for the California Department of Pesticide Regulation (DPR) exams in the Aquatic Pest Control category.

Download or read book Environmental Impact of the Cross Florida Barge Canal with Special Emphasis on the Oklawaha Regional Ecosystem written by Florida Defenders of the Environment and published by . This book was released on 1970 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1991 with total page 962 pages. Available in PDF, EPUB and Kindle. Book excerpt: