No wild flies caught could mean the outbreak is contained. It could also mean, as scientists have said, that current trapping methods are outdated.
Category: Flies
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Screwworm Flies Steer Clear of Agriculture Dept. Traps
The New York Times – Business: -
Screwworm Case Detected Less Than 70 Miles from U.S.-Mexico Border
The flesh-eating parasite was detected in northern Mexico. It is the northernmost case of the livestock infection, which was eradicated from the United States in the 1960s.