Record Display for the EPA National Library Catalog


Main Title Biological Control of Aquatic Vegetation.
Author Sturrock., Thomas T. ;
CORP Author Florida Atlantic Univ., Boca Raton. Dept. of Biological Sciences.;Environmental Protection Agency, Washington, D.C. Office of Research and Development.
Year Published 1973
Report Number EPA-R-801036; EPA/660/3-74-007;
Stock Number PB-238 909
Additional Subjects Aquatic weeds ; Weed control ; Florida ; Plant growth ; Fungi ; Plant pathology ; Culture media ; Morphology ; Microorganisms ; Pest control ; Aquatic weed control ; Hydrilla verticillata ; Eichhornia crassipes ; Water hyacinth ; Deuteromycetes(Imperfect fungi) ; Alternaria ; Biological weed control ; Biological pest control
Library Call Number Additional Info Location Last
NTIS  PB-238 909 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 107p
Laboratory studies were conducted to determine optimal growth conditions of Hydrilla verticillata and Eichhornia crassipes on both entire plants and detached leaf cultures. Techniques were then developed for surface sterilization of both the entire and plant parts for both species. Numerous weed infested habitats in Florida were examined for signs of aquatic plant diseases. These studies indicated various environmental factors as well as possible microbial pathogens as a source of plant tissue debilitation. No significant microbial pathogen was observed for H. verticillata, however, a pathogenic species of a Deutromycete was isolated from a leaf spot on E. crassipes. Characterization of this fungus revealed it to be an Alternaria species of the order Moniales. Infection was produced via agar block techniques and aerosol spore suspensions. Experiments are described concerning the virulence and host range for thise fungal pathogen.