Record Display for the EPA National Library Catalog


Main Title Biological Control of Water Weeds with Plant Pathogens.
Author Freema, T. E. ; Charudtta, R. ; Zettle, F. W. ;
CORP Author Florida Univ., Gainesville. Water Resources Research Center.
Year Published 1973
Report Number WRRC-Pub-23; DI-14-31-0001-3268; OWRR-B-011-FLA; 01653,; B-011-FLA(10)
Stock Number PB-225 473
Additional Subjects ( Aquatic plants ; Pest control) ; ( Aquatic weeds ; Plant diseases) ; Florida ; Water pollution control ; Water hyacinths ; Alligator weed ; Hydrilla ; Eurasian watermilfoil ; Eichhornia crassipes ; Alternathera philoxeroides ; Hydrilla verticillata ; Myriophyllum spicatum
Library Call Number Additional Info Location Last
NTIS  PB-225 473 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 69p
A search was made for diseases of water weeds to use as biocontrol. Emphasis was placed on finding diseases of waterhyacinth (Eichhornia crassipes), ALLIGATORWEED (Alternathera philoxeroides), hydrilla (Hydrilla verticillata), and Eurasian watermilfoil (Myriophyllum spicatum). Foremost discoveries were: (1) A blight of waterhyacinth incited by Rhizoctonia solani in India, Panama, and Puerto Rico, (2) A zonate leaf spot of waterhyacinth incited by Cephalosporium zonatum, found in Florida and Louisiana and also in El Salvador, Puerto Rico and India, (3) A virus-induced stunting disease of alligatorweed from Florida, (4) A Pythium and Sclerotium incited blight of hydrilla and a Penicillium sp. that produces matabolites lysogenic to hydrilla, first ever recorded on hydrilla and (5) A root and crown disease of waterhyacinth of unknown cause in Florida. (Modified author abstract)