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Pesticide Travels Throughout Plant


Wednesday, April 24, 2013
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In your article “Bees and Flies in the Bonnet” you state, “County assistant ag commissioner Guy Tingos countered that the chemical is lethal to bees only if applied to the leaves, but not to the roots.” ┬áIt is important for followers of this story to know that once applied to the roots the pesticide is taken up into all part of the tree including the pollen, nectar, and fruit. Here is a link to Wired Science articles that describe this more fully.

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Yes, the Ag Commissioner is probably hoping that people will be mollified because they won't have to breathe pesticide spray. Actually the chemical they plan to apply to the ground around the trees is of longer-lasting concern. It is a systemic insecticide, meaning the tree will absorb it into the leaves, flowers and fruit, and it will remain poisonous for a long time. It will certainly kill bees that visit the flowers to collect nectar or pollen. And people who don't want to consume pesticides might prefer not to eat the fruit of trees that are treated in this way.

JanT (anonymous profile)
April 25, 2013 at 3:26 p.m. (Suggest removal)

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