LA PRYOR, Tex.

(KGNS) - The total number of New World screwworm cases in the state of Texas is now at seven, according to the USDA's website.U.S. Secretary of Agriculture Brooke Rollins visited the Chaparrosa Ranch June 11 in Zavala County to release a batch of 80,000 sterile flies that were shipped in from Panama and came in through the Del Rio Airport.

In total, the agency is releasing about 4 million sterile flies on the ground a week.