I'm surprised I've read a few articles similar to that one lately. It really isn't that new of a concept. It's even mentioned in Silent Spring by Rachel Carson, published back in 1962. She mentioned it as a solution to Japanese beetle problems.
"The most effective and widely distributed is a parasitic wasp from Korea and China, Tiphia vernalis. The female Tiphia, finding a beetle grub in the soil, injects a paralyzing fluid and attaches a single egg to the undersurface of the grub. The young wasp, hatching as a larva, feeds on the paralyzed grub and destroys it."
Although some of the articles say the cockroach actually follows the wasp, others just say it is paralyzed.
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“Earth provides enough to satisfy every man's need, but not every man's greed."
-Gandhi
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