There have been reports of blister beetle attacks on hay in McKenzie County and elsewhere in North Dakota, along with parts of Montana this year, and Devan Leo, McKenzie County Extension agent, says blister beetles are toxic to livestock.
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Toxic blister beetles found in Montana, North Dakota
Blister beetles were found in alfalfa hay this year, as they are many years, but in more numbers. Beetles can be deadly to horses and cause blisters in cattle. NDSU photo.





