A field in Ukraine’s southern region of Mykolvaiv in August. Despite a strong growing season, attacks on Black Sea shipping routes have choked off exports.
For the first time in a year, the U.S.-Mexico border partly reopened to cattle imports following a screwworm infestation across the region. The battle against the flesh-eating fly has only just begun deep in Mexico.
New World screwworm flies in a cage at a facility in Metapa, Mexico, that that produces sterile flies, which when released into the wild slowly reduce the population size.
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