agriculture-and-policy1 month ago
USDA Marks Billionth Sterile Fly Release as Texas Screwworm Cases Remain Low
The USDA has released its billionth sterile fly in Texas to combat the New World screwworm, a pest that was previously eradicated in the U.S. but has re-emerged. As of August 16, 2026, federal agencies confirmed 47 cases, with 46 in Texas and one in New Mexico. The sterile insect technique aims to disrupt the pest's breeding cycle by releasing sterile males that mate with wild females, preventing offspring. While fewer than 50 cases have been recorded this year, the Trump administration is ramping up production. CBP is supporting the effort by facilitating the movement of sterile flies from Panama and training personnel. The public is urged to report suspected cases to animal health authorities.