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We Welcome Our New Insect Overlords

Battle of the Bugs: California To Launch Moth Killing Wasp Campaign

Agricultural management officials in California have decided to let loose hundreds of wasps, to find and kill hundreds of non-native moths. The decision to unleash the wasps is an attempt to find alternatives to aerial spraying of pesticides, while still protecting crops from being damaged by the pesky moths. You might be asking yourself, well okay less pesticides is probably a good thing, but why wasps?

The small, stinger-less wasps being used are pale yellow wasps (Trichogramma platneri) which are only the size of rice kernels. These insects lay their eggs inside the light brown apple moth’s eggs. The wasps incubate inside the eggs until the larvae emerge ready to kill the developing moth babies. The California Department of Food and Agriculture plan to use the wasps in San Luis Obispo and Sacramento counties, in what is being called an “integrated pest management” approach to agriculture that minimizes detrimental effects. But is introducing one predator to take on another predator neither of which are native to the area, really going to cause no problems?

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Mere Water Will Not Extinguish Fire Ants [Video]

Researchers at the Georgia Institute of Technology have done perhaps the only serious engineering study that involves dumping a bunch of fire ants in water and watching what happens. Engineering professor David Hu and grad student Nathan J. Mlot were interested in reports they had heard of South American fire ants forming massive rafts out of themselves and clumping together during flooding, and after gathering up fire ants by the roadside in Georgia, they put the anecdotes to the test.

“They’ll gather up all the eggs in the colony and will make their way up through the underground network of tunnels, and when the flood waters rise above the ground, they’ll link up together in these massive rafts,” Mlot said.

But in addition to making for some neat time-lapse videos, one of which is above, the researchers were doing science here:

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