If plants can't make pollen fast enough for hungry bumblebees, the bees poke tiny holes in their leaves, which appears to cause them to flower early, according to findings published in Science. Researchers observed bees making holes in tomato and black mustard plants, spurring the plants to flower two weeks to a month earlier, but when scientists punctured the leaves themselves, the plants did not flower earlier.
Bees have ace in the hole to get plants to make pollen
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