Screenshot 2020-02-13 15.31.57

Symbiont-produced RNAi kills Varroa mites feeding on honey bees.

Survival curves for Varroa mites that fed on bees colonized with engineered S. alvi. Total N = 253 mites. All mites came from a single infested hive. Bees were sourced from three separate hives.
**P < 0.01 (Wald test); NS, not significant. From: Leonard et al., Science 367, 573–576 (2020)

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