|Michael Ralphs, Rangeland Scientist|
Poisonous Plant Research Lab 1150 E 1400 N
N Logan, UT 84341
PhD 1983 Range Science (Grazing Management); Texas A&M University
MS 1977 Range Economics; Utah State University
BS 1973 Range Science; Utah State University
Sheep grazing cattle before larkspur
Sampling locoweed for population studies
Crooked calf grazing lupine
Cattle grazing broom snakeweed as a biological control
•• 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.