Firepower Against Fire Ants: Killer Flies
"OFF WITH THEIR HEADS" IS the new battle cry in the war against fire ants. Sanford Porter, a scientist at the Agricultural Research Service Laboratory in Gainesville, Fla., is marshaling South American parasitic flies against them. The female Pseudacteon fly injects an egg into an ant with a needle-like appendage. The egg develops into a maggot and eats through the ant's neck to the head, producing enzymes that decapitate the critter.
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