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 Poisonous Plant Research: Logan, UT
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ARS Home Pacific West Area Logan, Utah Poisonous Plant Research People







Michael Ralphsheadline bar    **** **** **** **** **** **** **** **** **** **** Poisonous Plants Research Lab 1150 E 1400 N N Logan, UT 84341 (435)752-2941         **** ****     **Education**PhD 1983 Range Science (Grazing Management); Texas A&M UniversityMS 1977 Range Economics; Utah State UniversityBS 1973 Range Science; Utah State University Sheep grazing cattle before larkspurSampling locoweed for population studiesCrooked calf grazing lupineCattle grazing broom snakeweed as a biological control**** ****  Research Projects Evaluate grazing behavior of cattle with respect to poisonous plants: larkspur, locoweed, lupine, broom snakeweedTarget livestock grazing to control poisonous and noxious weedsEvaluate herbicide and biological controls of poisonous plantsAssess ecology and population cycles of poisonous plantsDetermine environmental influences on toxin concentrations in plantsProvide management recommendation to reduce risk of poisoning and enhance sufficient use of rangelands  Significant Accomplishments Developed herbicide control recommendations for larkspur, locoweed, and lupineDeveloped management recommendations to reduce risk of locoweed poisoningDeveloped biological tools to reduce risk of poisoning:Larkspur mired to deter grazing of larkspurSheep grazing larkspur before cattleConditioned food aversionSeed cool-season grasses to prevent reinvasion of loco and snakeweed and provide alternative feedDescribed snakeweed seedling ecology that drives its population outbreaks


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