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Title: Field and laboratory studies of the fungus Mycoleptodiscus terrestris as a potential agent for management of the submersed aquatic macrophyte Hydrilla verticillata
Authors: Aquatic Plant Control Research Program (U.S.)
Shearer, Judy F. (Judy Fredrickson)
Keywords: Biological control
Fungal pathogen
Hydrilla verticillara
Mycoleptodiscus terrestris
Publisher: Environmental Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Description: Technical Report
Abstract: Laboratory and field studies were undertaken to assess the potential of a fungal pathogen as a biocontrol agent for the management of hydrilla verticillata (L. fil.) Royle. The pathogen previously reported to be Macrophomina phaseolina (Tassi) Goid was positively identified as a strain of Mycoleptodiscus terrestris (Gerd.) Ostazeski. Laboratory tests reconfirmed that M. terrestris produced characteristic disease symptoms on hydrilla tissues followed by a significant reduction in aboveground biomass. Assessment of M. terrestris in a field situation was conducted on hydrilla-planted ponds at the Lewisville Aquatic Ecosystem Research Facility. Aboveground biomass of the host plant was significantly reduced 4 weeks postinoculation with a mycelial matrix of the fungus.
Rights: Approved for public release; distribution is unlimited.
Appears in Collections:Technical Report

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