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 University
MS 1977 Range Economics; Utah State University
BS 1973 Range Science; Utah State University
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Sheep grazing cattle before larkspur |
Sampling locoweed for population studies |
Crooked calf grazing lupine |
Cattle grazing broom snakeweed as a biological control |
Research Projects:
- Evaluate grazing behavior of cattle with respect to poisonous plants: larkspur, locoweed, lupine, broom snakeweed
- Target livestock grazing to control poisonous and noxious weeds
- Evaluate herbicide and biological controls of poisonous plants
- Assess ecology and population cycles of poisonous plants
- Determine environmental influences on toxin concentrations in plants
- Provide management recommendation to reduce risk of poisoning and enhance sufficient use of rangelands.
Significant Accomplishments:
· Developed herbicide control recommendations for larkspur, locoweed, and lupine.
· Developed management recommendations to reduce risk of locoweed poisoning.
· Developed biological tools to reduce risk of poisoning:
· Larkspur mired to deter grazing of larkspur
· Sheep grazing larkspur before cattle
· Conditioned food aversion
· Seed cool-season grasses to prevent reinvasion of loco and snakeweed and provide alternative feed.
· Described snakeweed seedling ecology that drives its population outbreaks.
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