Article: Plants send SOS signal to insects

By Victoria Gill Science reporter, BBC News Excerpt: Plants can summon insects to their aid to avoid being munched to death by caterpillars, scientists have found. Leafy tobacco plants have evolved a "chemical SOS" that attracts predatory insects that eat the attackers. In the journal Science, researchers revealed that the caterpillars' saliva activates this signal. Read the full article HERE

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