Trump Administration Addresses New World Screwworm Threat
The Trump administration is taking steps to tackle the spread of New World Screwworms (NWS), which are parasitic larvae that damage livestock, particularly cattle. These parasites pose a significant threat to agriculture and could potentially drive up beef prices if they migrate to the U.S.
Brooke Rollins, Director General of the USDA, recently announced a comprehensive strategy aimed at countering this threat. This includes plans to establish a major national laboratory focused on producing sterilized flies to combat the NWS. These pests are primarily found in southern states and U.S. officials have previously collaborated with Mexico and Panama to manage the situation, including halting live cattle imports and producing sterile flies to help mitigate the spread of these pests.
“The U.S. has successfully dealt with NWS before, and we can do it again,” Rollins said. She emphasized the seriousness of the threat to the livestock sector, the economy, and the food supply chain. The announcement of this strategy is considered just the beginning of their efforts.
According to the USDA, the announced “Five Plans” focus on investing in controlling these pests in Mexico, enhancing vigilance at the southern border, collaborating with local partners, and pursuing new technological solutions to combat the NWS.
Colin Woodall, head of the National Beef Cattle Association, commented on the earlier successes in pest control, noting that releasing infertile flies has effectively eradicated screwworms in certain areas. “This pest is dangerous, and we need to ensure we protect ourselves and eradicate it as soon as it reaches the U.S.,” he said.
Panama’s US Committee for the Eradication and Prevention of Cow Insect Worms, known as Copeg, has been producing sterilized flies, but there are concerns about whether they can produce enough quickly enough for effective control. A USDA spokesperson noted that Mexico must remain a key partner in this effort, as their facilities can also contribute significantly to the production of sterile flies.
Reflecting on historical precedents, the USDA pointed out that the screwworm outbreak in the 1960s caused significant financial losses for the cattle industry. However, the strategy of using sterile flies eventually helped eradicate the pests.
