Hibernating insects have memories that span not only from day to day but from year to year, Yeh said. “Then on June 1st, when the food disappears, it’s not good for them.” “Bees tell each other where the food is, and pollinators (when they discover an unmown lawn) will remember to come back to it again and again,” Yeh said. Yeh sees the movement as a “feel-good, stop-gap measure, because if you want to have an impact, you need to establish a permanent cover for insects,” not merely temporary housing. “It’s such a nice slogan, but letting the grass grow high and allowing it to do its thing, and then suddenly mowing it back is really counterproductive.” “I think it’s a terrible idea, too,” she said. Perplexed by the seemingly runaway-train popularity of the now-annual event, I called Tamson Yeh, turf specialist with the Cornell Cooperative Extension of Suffolk County in New York. And what about rodents, snakes and other undesirables that also will likely avail themselves of the shelter?
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