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Development Of A Biological Control Program For Eurasian Watermilfoil Myriophyllum Spicatum
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Book Synopsis Development of a Biological Control Program for Eurasian Watermilfoil (Myriophyllum Spicatum) by : Matthew J. W. Cock
Download or read book Development of a Biological Control Program for Eurasian Watermilfoil (Myriophyllum Spicatum) written by Matthew J. W. Cock and published by . This book was released on 2008 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigation of Two Insect Species for Control of Eurasian Watermilfoil by : Gary R. Buckingham
Download or read book Investigation of Two Insect Species for Control of Eurasian Watermilfoil written by Gary R. Buckingham and published by . This book was released on 1981 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the results of the evaluation of two species of insects for the biological control of Eurasian watermilfoil (Myriophyllum spicatum L.). One of the species is a native weevil, Litodactylus leucogaster (Marsh.), which attacks the flower spikes, and the other is an accidentally introduced European moth, Acentria nivea (Oliver), whose larvae feed on the leaves and stems. The biology of L. leucogaster was studied in detail and host-specificity tests were conducted with adults and larvae. Since it was determined to be specific to watermilfoils, it was released at Crystal River, Florida, on 22 August 1979. Two adults were captured at Crystal River in November indicating possible establishment. The pyralid moth, A. nivea, was difficult to rear in the laboratory. Since the females were active only one night, successful matings were rare in the small colony. Larval production was best in containers that were minimally disturbed. the larvae required water temperatures below 22 C for development though they could survive short periods at higher temperatures. The larvae were not specific to milfoil; however, A. nivea may still be of interest as a member of a complex of species which attack milfoil. (Author).
Book Synopsis Microbiological Control of Eurasian Watermilfoil by : Haim B. Gunner
Download or read book Microbiological Control of Eurasian Watermilfoil written by Haim B. Gunner and published by . This book was released on 1990 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Potential for Biological Control of Eurasian Watermilfoil (Myriophyllum Spicatum) by : Robert P. Creed (Jr)
Download or read book The Potential for Biological Control of Eurasian Watermilfoil (Myriophyllum Spicatum) written by Robert P. Creed (Jr) and published by . This book was released on 1993 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biological Control Technology Development: Microbiological Control of Eurasian Watermilfoil by : Haim B. Gunner
Download or read book Biological Control Technology Development: Microbiological Control of Eurasian Watermilfoil written by Haim B. Gunner and published by . This book was released on 1983 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: Studies reported previously have shown that inoculation of Myriophyllum spicatum and M. heterophyllum with enzyme-enhanced pectinolytic or cellulolytic microorganisms originally isolated from these species significantly accelerated plant necrosis. Subsequent studies, reported herein have attempted to assess plant response to inoculation under a variety of stress conditions, to define infection thresholds, and to enlarge the scale of infection trials.
Book Synopsis The Potential for Biological Control of Eurasian Watermilfoil (Myriophyllum Spicatum) by : Robert P. Creed (Jr)
Download or read book The Potential for Biological Control of Eurasian Watermilfoil (Myriophyllum Spicatum) written by Robert P. Creed (Jr) and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biological Control of Eurasian Watermilfoil (Myriophyllum Spicatum) Using the Native Milfoil Weevil (Euhrychiopsis Lecontei) by : Amy L. Thorstenson
Download or read book Biological Control of Eurasian Watermilfoil (Myriophyllum Spicatum) Using the Native Milfoil Weevil (Euhrychiopsis Lecontei) written by Amy L. Thorstenson and published by . This book was released on 2011 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Exploring the Potential for Control of Eurasian Watermilfoil by the Milfoil Weevil in Christina Lake, British Columbia by : Cara Patricia Frew
Download or read book Exploring the Potential for Control of Eurasian Watermilfoil by the Milfoil Weevil in Christina Lake, British Columbia written by Cara Patricia Frew and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Aquatic invasive plants present a growing risk to the environment and the economy. One of the most problematic invasive plants found in North American waterbodies is Eurasian watermilfoil, Myriophyllum spicatum. Eurasian watermilfoil was inadvertently introduced into Christina Lake, British Columbia, Canada, in the early 1980's. Physical control methods have been utilized since the plant was first identified in the Lake, but regular intensive management is required to meet control objectives. Variable success has been reported in Ontario lakes and waterbodies in the United States using the milfoil weevil, Euhrychiopsis lecontei as a biological control agent. Field sampling in Christina Lake indicated that the milfoil weevil is not currently present, or is present at numbers below detection. As an introductory stage of a potential biological control program, a Christina Lake-specific simulation model was developed to evaluate the expected response of milfoil growth to different weevil augmentation scenarios. Results of the model indicate that control of the sites most impacted by Eurasian watermilfoil could be achieved with a weevil augmentation rate of one weevil per square metre.
Book Synopsis The Biology, Ecology and Management of Eurasian Watermilfoil (Myriophyllum Spicatum L.) in North America by : Ronald N. Neumeyer
Download or read book The Biology, Ecology and Management of Eurasian Watermilfoil (Myriophyllum Spicatum L.) in North America written by Ronald N. Neumeyer and published by . This book was released on 1979 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Insects, Other Plant Feeding Organisms Or Plant Diseases which Attack Eurasian Watermilfoil (Myriophyllum Spicatum). by :
Download or read book Insects, Other Plant Feeding Organisms Or Plant Diseases which Attack Eurasian Watermilfoil (Myriophyllum Spicatum). written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aquatic Plant Control Research Program. A Survey of the Continental United States for Pathogens of Eurasian Watermilfoil by : William C. Zattau
Download or read book Aquatic Plant Control Research Program. A Survey of the Continental United States for Pathogens of Eurasian Watermilfoil written by William C. Zattau and published by . This book was released on 1988 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: A survey of the continental United States for pathogens of Myriophyllum spicatum (Eurasian watermilfoil) was conducted. More than 50 water bodies, located in 10 states, were sampled for diseased plants. Sample sites represented a geographic and climatic cross section of aquatic systems in the continental United States, including ponds, lakes, reservoirs, rivers, and canals. At the conclusion of the survey, 792 isolates had been collected from tissue samples and maintained in pure culture. Of these, 462 were bacteria and 330 were fungi; many isolates were duplicates but were retained because they possibly represented different strains of the same species. Lytic enzyme assays indicated that 14 bacterial and 22 fungal isolates produced pectinase or cellulose. Enzyme assays were used to screen for the more promising isolates for additional study as potential biocontrol agents for the management of Eurasian watermilfoil. The 32 isolates were then assayed healthy sprigs of the target species in test tubes. Results indicated that five fungal isolates should be considered for additional study. Keywords: Biological weed control; Aquatic weeds; Aquatic plants. (kt).
Book Synopsis Response of Eurasian Watermilfoil to Integrated Fluridone-Fungal Pathogen Treatment by :
Download or read book Response of Eurasian Watermilfoil to Integrated Fluridone-Fungal Pathogen Treatment written by and published by . This book was released on 2002 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: This technical note describes laboratory investigations conducted to evaluate the effectiveness of the herbicide fluridone (1-methyl-3-phenyl-5 3-(TRIFLUOROMETHYL)PHENYL-4(1H)-pyridinone) and the fungal pathogen Mt (Mycoleptodiscus terrestris (Gerd.) Ostazeski), applied alone and in combination with one another, against Eurasian watermilfoil (Myriophyllum spicatum L.). Results of this research will demonstrate the potential for integrating chemical and biological control tactics to improve the long-term management of nuisance aquatic weed species.
Book Synopsis Evaluation of a New Biological Control Pathogen for Management of Eurasian Watermilfoil by : Judy Fredrickson Shearer
Download or read book Evaluation of a New Biological Control Pathogen for Management of Eurasian Watermilfoil written by Judy Fredrickson Shearer and published by . This book was released on 2013 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biocontrol of Eurasian Water-milfoil in Central New York State by : Paul H. Lord
Download or read book Biocontrol of Eurasian Water-milfoil in Central New York State written by Paul H. Lord and published by . This book was released on 2004 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Aquatic Plant Control Research Program (U.S. Army Engineer Waterways Experiment Station). Meeting Publisher : ISBN 13 : Total Pages :212 pages Book Rating :4.3/5 (91 download)
Book Synopsis Proceedings by : Aquatic Plant Control Research Program (U.S. Army Engineer Waterways Experiment Station). Meeting
Download or read book Proceedings written by Aquatic Plant Control Research Program (U.S. Army Engineer Waterways Experiment Station). Meeting and published by . This book was released on 1984 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aquatic Plant Control Research Program: 2,4-D Concentration and Exposure Time Relationships for the Control of Eurasian Watermilfoil by : W. R. Green
Download or read book Aquatic Plant Control Research Program: 2,4-D Concentration and Exposure Time Relationships for the Control of Eurasian Watermilfoil written by W. R. Green and published by . This book was released on 1988 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: Herbicide concentration and exposure time relationships were developed for 2,4-D and the control of Eurasian watermilfoil (Myriophyllum spicatum L.), under laboratory conditions using concentrations, exposure times, and biomass similar to field conditions. Fourteen 2,4-D concentrations (0.5,1.0, and 2.0 mg acid equivalent (ae)/l) and exposure time (12, 24, 36, 48, 60, and 72 hr) combinations were tested. Eurasian watermilfoil control was based on plant injury incurred, relative to that of untreated plants, and harvested biomass (4 weeks after treatment). Plant injury increased with increasing concentrations and exposure times to a threshold above which control was achieved. Severe Eurasian watermilfoil injury occurred in the 0.5 mg ae/l for 72-hr, 1.0 mg ae/l for 36-hr, and 2.0 mg ae/l for 24-hr exposures. Eurasian watermilfoil control was established in the 1.0 mg ae/l for 48 hr, and 2.0 mg ae/l for 36-hr, and 48-hr exposures. Control can be predicted for Eurasian watermilfoil treatments in both dynamic and static aquatic environments when plants remain in contact with 2,4-D concentrations greater than the developed threshold levels. Aquatic plant control, Eurasian watermilfoil; Herbicides. (mjm).
Book Synopsis Controlling Hydrilla and Eurasian Watermilfoil With Fungal Pathogens from the People's Republic of China by :
Download or read book Controlling Hydrilla and Eurasian Watermilfoil With Fungal Pathogens from the People's Republic of China written by and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This technical note describes screening of fungal pathogens collected in The People's Republic of China for efficacy on hydrilla (Hydrilla verticillata (L.f.) Royle) and Eurasian watermilfoil or milfoil (Myriophyllum spicatum L.). Results of this research will be used to determine the direction of future efforts in using classical pathogen biological control research for management of these two nuisance aquatic weed species.
