Canadian Geographic



The grape phylloxera is a tiny aphid-like insect that infests vineyards and entire wine regions. They have been ruining European grapevines, which are more susceptibl­e than North American vines, since the mid-1800s. These pests are resistant to insecticid­es, and eat grape leaves and roots, injecting a poison into the plant in the process, while nymphs get under the bark and form protective pouches, called galls, on leaves.

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