CORYELL COUNTY, Texas (KXXV) — Texas ranchers are ramping up efforts to protect their herds as a dangerous livestock parasite spreads north from Mexico.

Watch the full story here: ‘An absolute threat’: Deadly parasite creeps toward Texas, ranchers brace for impact

The New World screwworm, which ranchers describe as a “direct attack on Texas agriculture,” is capable of killing animals within days.

“Screwworm is an absolute threat. It is disgusting,” said Blayr Barnard, owner of Barnard Beef Cattle Co.

“You really don't know when it's going to hit here. One female fly can lay 200 to 300 eggs, and within 24 hours those eggs have hatched, turned vertical, and started screwing into the flesh of the animal. Within seven days, that animal will be dead if not caught,” Barnard said.

Barnard

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