DELMARVA — Federal agriculture officials have confirmed New World screwworm has been detected inside the United States, marking a serious development for livestock producers across the region.
The first case was identified in a calf in Texas on June 3. Since then, additional cases have been found in both livestock and pets in other parts of the country. The USDA has responded with quarantines and movement restrictions in affected areas.
New World screwworm larvae feed on the living tissue of warm-blooded animals, posing a serious threat to any livestock operation. Farmers and pet owners are urged to stay vigilant and report any suspected cases to authorities immediately.
Markets
With calf prices at historic highs, proper weaning management has never carried higher stakes. Over the past 3 years, the market value of a 550-pound steer has doubled. Producers are being urged to reduce stress during weaning, as a mishandled transition now carries a much steeper financial penalty than it once did.
At Laurel Grain Company in Laurel, Delaware, corn is bringing $4.50/bu on the December contract. November soybeans are trading at $11.00/bu.
Forecast
The National Weather Service has issued an Extreme Heat Watch today, running through July 4 at 8 p.m. Monday’s high reaches 84°F with patchy morning fog clearing to mostly sunny skies. Tuesday climbs to 88°F and sunny. Temperatures will continue rising through the holiday weekend, with dangerous heat developing by midweek.
Livestock producers are advised to keep animals watered and limit their movement during peak afternoon hours.
This article is based on the Delmarva Farm Report Update Morning Edition, June 29, 2026. Hosted by Tom Bradley.
