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GRAND RAPIDS, Mich. (AP) - Some tiny, parasitic wasps from China no larger than a sesame seed may help halt the destruction of Michigan's dwindling population of ash trees.
The wasps lay eggs inside the larvae and eggs of emerald ash borers. The baby wasps that hatch feed on their hosts before emerging three weeks later, flying off and repeating the cycle.
If all goes as planned, hundreds of the wasps now being kept at Michigan State University will be released this summer in the Lansing and Jackson areas.
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