PASCAL GOETGHELUCK / SCIENCE PHOTO LIBRARY PASCAL GOETGHELUCK / SCIENCE PHOTO LIBRARY
Colorado beetle research. Female biologist looking through a magnifying glass at Colorado beetles (Leptinotarsa decemlineata) on a leaf. These beetles live on tomato, aubergine and, particularly, potato plants. A female Colorado beetle lays up to 800 eggs on a host plant and the larvae which hatch feed on the plant's leaves. A single larva can consume 40 square centimetres a day. As the beetle is good at developing resistance to pesticides, it has become a major threat to potato crops worldwide. Photographed at the Laboratoire de Recherche Biologique, France.
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