Texas lawmakers heard conflicting reports on the state’s readiness to fight the New World Screwworm, which is approaching the southern border.

Concerns over screwworm ramped up this fall after the parasite was detected in the Mexican state of Nuevo Leon. One was detected approximately 70 miles from the Texas border in September and a second was detected about 170 miles from the border in October.

USDA officials told state lawmakers on Tuesday that within 400 miles of the U.S.-Mexico border, they’ve detected 14 cases, but all of them were related to cattle movement. None of the cases suggested the fly population itself was moving farther north.

Efforts to eradicate the screwworm are underway in Panama, where USDA officials are helping produce 100 million sterile flies per week meant to mate with the screwworm in hopes of eradicating their population.