Tomato fruits send electrical warnings to the rest of the plant when attacked by insects

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Tomatoes supposedly have an electrical warning system in place to prepare their mother plant for imminent pest attacks. Researchers from Brazil discovered that tomato fruits attacked by caterpillars sent electrical signals to give the rest of the plant time to prepare important defensive chemicals against the pests. They hope this discovery could lead to not only less aggressive pest control in agriculture but also new avenues of manipulating crops to yield better fruits.
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