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This class of pesticides can be harmful to pollinators
This class of pesticides can be harmful to pollinators

I am wondering about neonicotinoids [pesticides]. I know their effects can last several years in woody plants, but what about, say, perennials? I heard something about being careful. You may be referring to the 2013 incident in Oregon when a neonicotinoid sprayed on flowering linden trees killed at least 25,000 bumblebees along with tens of thousands of other bees, ladybugs and other insects. Ironically, it happened during National Pollinator Week. The neonicotinoid class of pesticides is systemic, spreading throughout plants — including roots and pollen — which has implicated it as one factor in the country's pollination crisis. That said, consult product labels and...

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