An invasive species of ants travelled across continents to America and is now defending other insects. According to a report by econews, Argentine Ants have been protecting aphids, mealybugs, scales, whiteflies and psyllids against the predators and parasites that would normally keep their population under control. This unlikely alliance has turned the ants into a hidden and looming problem for citrus groves, vineyards, nurseries and backyard plants.
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