The New World screwworm fly is threatening the U.S. cattle industry for the first time in more than a half century.
The New World screwworm fly is threatening the $113 billion U.S. cattle industry for the first time in more than a half ...
The New World screwworm fly is threatening the $113 billion US cattle industry for the first time in 60 years, with an ...
The insect, which has been found in America for the first time since 1966, is a growing concern in the southern US.
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