Download or read book Field Evaluation of Cercospora Rodmanii as a Biological Control of Waterhyacinth written by and published by . This book was released on 1979 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Field Evaluation of Cercospora Rodmanii as a Biological Control of Waterhyacinth Inoculum Rate Studies written by and published by . This book was released on 1979 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fungus 'Cercospora rodmanii' Conway has been shown to have good potential as a biological control agent for waterhyacinth in Florida. Previous work has shown what will happen if known quantities of the fungus are placed on an area of waterhyacinth. This current research addresses the study as optimal levels of inoculum necessary to begin an epidemic, various levels of inoculum on small populations of waterhyacinth, morphological changes of the infested plants, the effect of subsequent inoculations on infested plants, and the effect of off-the-shelf fungicides on 'Cercospora rodmanii'. It was shown that the fungus can severely affect waterhyacinth in conditions that favor a reduced growth of the plant. The 'Cercospora rodmanii' can be controlled with available fungicides if necessary. The greatest effect of the fungus on waterhyacinth was in reduction in height of the plants. Secondary infestations can occur with the spread of the disease from inoculated plants. (Author).
Download or read book Evaluation of the Infectivity of a Cercospora Rodmanii Formulation Using Two Application Systems written by and published by . This book was released on 1981 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: As a part of a Large-Scale Operations Management Test (LSOMT) of insects and pathogens for the control of waterhyacinth (Eichhornia crassipes Mort.) in Louisiana, a formulation of Cercospora rodmanii was evaluated to determine the ability of C. rodmanii to infect field populations of waterhyacinth, and to evaluate two equipment systems for suitability in application of the formulation. The formulation was applied with a high-pressure piston pump system at 150 psi and a low-pressure impeller pump at 20 to 25 psi. In the fall study, a C. rodmanii formulation was applied to test plots in a roadside canal in Louisiana at a rate of 5 g (50,000 Colony Forming Units) per square metre. Cercospora rodmanii in the formulation proved to be infectious on the test plants; based upon observed infectivity in field plots 7 weeks after application of the formulation, it was concluded that there was no significant difference in infectivity when using a high-pressure piston pump system at 150 psi or a low-pressure impeller pump system at 25 psi. (Author).
Download or read book Evaluation of a Formulation of Cercospora Rodmanii for Infectivity and Pathogenicity of Waterhyacinth written by and published by . This book was released on 1981 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: As a part of a Large-Scale Operations Management Test (LSOMT) of insects and pathogens for the control of waterhyacinth in Louisiana, a formulation of the fungal pathogen Cercospora rodmanii was preliminarily evaluated to determine application rates required to achieve adequate infection of water-hyacinth under environmental conditions normally found in Louisiana. In a spring study, a C. rodmanii formulation containing one million viable propagules per gram was applied to test tanks at rates of 0, 5, 10, and 20 g/sq m. After 6 weeks, it was concluded that a treatment rate of five million viable propagules per square meter provides adequate infection of waterhyacinth in a spring application. In a fall study, treatment rates of 0, 1, 2.5, and 10 g/sq m of the C. rodmanii formulation containing four million viable propagules per gram were applied to replicated test tanks. After 6 weeks, all tanks that received C. rodmanii were infected by the fungus, but there were no significant differences in the level of infection among C. rodmanii treatments. Based on the results of these studies, rates of five and four million viable propagules per square metre will be used for large-scale applications of C. rodmanii in spring and fall tests, respectively.
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 Pesticides Abstracts written by and published by . This book was released on 1980 with total page 652 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 1990 with total page 710 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 Proceedings of the Workshop on Aquatic Weeds written by Gerald E. Walsh and published by . This book was released on 1981 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the IV International Symposium on Biological Control of Weeds written by Thomas Edward Freeman and published by . This book was released on 1976 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1980 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin written by University of Florida. Agricultural Experiment Station and published by . This book was released on 1983 with total page 822 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin written by and published by . This book was released on 1982 with total page 1184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings 17th 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 1983 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Mycopathological Research written by and published by . This book was released on 1992 with total page 202 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 Test Plan for the Large scale Operations Management Test of Insects and Pathogens for Control of Waterhyacinth in Louisiana written by and published by . This book was released on 1979 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
