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Please use this identifier to cite or link to this item: https://hdl.handle.net/11681/6394
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dc.contributor.authorJoye, Gary F.en_US
dc.contributor.authorCofrancesco, Alfred F., Jr.en_US
dc.creatorAquatic Plant Control Research Program (U.S.)en_US
dc.creatorEnvironmental Laboratory (U.S.)en_US
dc.date.accessioned2016-03-23T19:55:19Zen_US
dc.date.available2016-03-23T19:55:19Zen_US
dc.date.issued1991-06en_US
dc.identifier.govdocTechnical Report A-91-4en_US
dc.identifier.urihttp://hdl.handle.net/11681/6394en_US
dc.descriptionTechnical Reporten_US
dc.description.abstractA survey was conducted in populations of Hydrilla verticillata (L.f.) Royle growing in lakes and rivers of the southeastern United States for the purpose of identifying plant pathogens with potential biocontrol use. An isolate of the fungus identified as Macrophomina phaseolina (Tassi) Goid. was collected from the foliage of hydrilla growing in Lake Houston, Texas. In repeated laboratory, greenhouse, and field tests, this fungus was pathogenic to hydrilla. Inoculum concentrations of between 1 x 10^4 and 1 x 10^6 colony forming units per milliliter were sufficient to kill hydrilla test plants over a 3- to 4-week period. In a field of 46 spec1es and subspecific taxa within 22 families, this fungus was pathogenic only to hydrilla and duck lettuce (Ottelia alismoides (L.) Pers.). This fungus may be useful as a biocontrol agent of hydrilla.en_US
dc.description.sponsorshipAquatic Plant Control Research Program (U.S.)en_US
dc.description.sponsorshipUnited States. Army. Corps of Engineersen_US
dc.description.tableofcontentsPreface.................................1 Introduction.................................3 Background.................................3 Control of hydrilla.................................3 Materials and Methods.................................5 Microbial isolation and culture.................................5 Test tube bioassays.................................6 Greenhouse bioassays.................................6 Host specificity.................................7 Field tests.................................8 Results and Discussion.................................8 Microbial isolation and culture.................................8 Test tube bioassays.................................9 Greenhouse bioassays.................................9 Host specificity.................................10 Field tests.................................10 Conclusions.................................10 References.................................11 Tables 1-4 Figures 1-9en_US
dc.format.extent25 pages/4.14 MBen_US
dc.format.mediumPDFen_US
dc.language.isoen_USen_US
dc.publisherU.S. Army Engineer Waterways Experiment Stationen_US
dc.relationhttp://acwc.sdp.sirsi.net/client/en_US/search/asset/1043550en_US
dc.relation.ispartofseriesTechnical Report (Aquatic Plant Control Research Program (U.S.)) ; no.Technical Report A-91-4en_US
dc.rightsApproved for public release; distribution is unlimiteden_US
dc.sourceThis Digital Resource was created from scans of the Print Resourceen_US
dc.subjectBiocontrolen_US
dc.subjectBiological controlen_US
dc.subjectPathogenen_US
dc.subjectFungal pathogenen_US
dc.subjectFungien_US
dc.subjectMacrophomina phaseolinaen_US
dc.subjectAquatic plantsen_US
dc.subjectHydrilla verticillataen_US
dc.subjectAquatic Plant Control Research Program (U.S.)en_US
dc.titleStudies on the use of fungal plant pathogens for control of Hydrilla verticillata (L.f.) Royleen_US
dc.typeReporten_US
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