Download or read book A Field Test of Selected Insects and Pathogens for Control of Waterhyacinths written by Eugene E. Addor and published by . This book was released on 1977 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the 1975 growing season a field experiment was begun on Lake Concordia, La., to test the potential effectiveness of selected organisms as control agents against waterhyacinths, Eichhornia crassipes (Mart.) Solms. Floating frames, each approximately 2 m square, were anchored on the lake in open water and planted with locally growing waterhyacinths. Sixty of these frames (plots) were selected for treatment with various combinations of two insects (Arzama densa Walker and Neochetina eichhorniae Warner) and two fungi (Acremonium zonatum (Sawada) Gams and Cercospora rodmanii Conway) in a random block factorial arrangement with four replications per treatment, and four frames were designated as control (no-treatment) plots. All plots were weighed at 2-week intervals throughout the growing season, flowering stalks were counted, and plant heights were measured at each weighing date. Observations were also made on insect and pathogen populations on the plots during the season. Preliminary indications are that significant reductions in the growth rate or total accumulation of waterhyacinth mass in the test plots were not achieved by any of the treatment combinations during the first season's tests, but the potential for some of the treatments to effect the desired control began to emerge during the second year.
Download or read book A Field Test of Selected Insects and Pathogens for Control of Waterhyacinths written by Eugene E. Addor and published by . This book was released on 1977 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Test Plan for the Large Scale Operations Management Test of Insects and Pathogens for Control of Water Hyacinth in Louisiana written by Dana R Sanders (Sr) and published by . This book was released on 1979 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: The large-scale operations management test is being conducted in the state of Louisiana, using Cercospora rodmanii Conway, Neochetina eichhorniae Warner, and Sameodes albiguttalis (Warren) for the control of water hyacinth. In-house and contractor groups will be collecting data on the project following the rationale set forth in this test plan. The plan includes a pilot study to determine whether Cercospora is capable of becoming epiphytotic on a large scale from the introduction of small quantities of inoculum, efficacy tests of a commercially prepared formulation of Cercospora, tests of effects of combinations of Cercospora - Neochetina and Cerospora - Sameodes, and supportive studies aimed at enhancing the effects of these agents. Provisions are also made for the extrapolation of results to the development of a management strategy for operational use of effective combinations of agents in areas where water hyacinth is a problem. (Author).
Download or read book Biological Control of Water Hyacinth with Insect Enemies written by Edward O. Gangstad and published by . This book was released on 1974 with total page 176 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 898 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pesticides Abstracts written by and published by . This book was released on 1978 with total page 952 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Australian Journal of Agricultural Research written by and published by . This book was released on 1987 with total page 1162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of the Indian Botanical Society written by Indian Botanical Society and published by . This book was released on 1995 with total page 590 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings Research Planning Conference on the Aquatic Plant Control Program 19 22 October 1976 Atlantic Beach Fla written by and published by . This book was released on 1977 with total page 326 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 1354 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1977 with total page 1850 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Weed Science written by and published by . This book was released on 1986 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Water Hyacinth written by Brij Gopal and published by Elsevier Publishing Company. This book was released on 1987 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is almost impossible for an individual to keep pace with the huge bulk of, not always readily accessible, literature on waterhyacinth which has amassed in recent years. This book provides for the first time a comprehensive bibliography of over 2700 references and a critical review of the current knowledge on all aspects of the plant. Important data on all these aspects have been compiled and presented in numerous tables and figures making the book the most important reference work to date on waterhyacinth. Areas requiring the extra attention of researchers are also indicated. In recent years aquatic weeds such as waterhyacinth have received great attention, not only for the magnitude of problems caused by them in the management of water resources, but also for the promise they hold as a new resource for such diverse uses as animal feed, compost, paper, energy (biogas) and above all the control of water pollution (wastewater treatment). Waterhyacinth outclasses all other aquatic weeds in its rate of growth, multiplication and dry matter production, and its potential ability in respect to energy and pollution control.
Download or read book Evaluation of a Formulation of Cercospora Rodmanii for Infectivity and Pathogenicity of Waterhyacinth written by Edwin A. Theriot and published by . This book was released on 1981 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Introduction to the Environmental Literature of the Mississippi Deltaic Plain Region written by and published by . This book was released on 1981 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biological Control written by George E. Heimpel and published by Cambridge University Press. This book was released on 2017-04-03 with total page 393 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book enhances our understanding of biological control, integrating historical analysis, theoretical models and case studies in an ecological framework.
Download or read book Biological Control of Aquatic Plants with Pathogenic Fungi written by and published by . This book was released on 1981 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
