Striped Nutcracker

Latin name: Agriotes lineatus

Russian name: Nutcracker sowing striped

Pest Type: Multi-Pest

Row: Coleoptera – Coleoptera

Distributed in Polesie and Forest-Steppe. Larvae feed on young cereal roots, damage sown seeds, tillering nodes, stems, root crops.

Beetle 7.5 – 11 mm in size, dark brown; dark and light stripes alternate on elytra; legs and antennae light brown. Larva 27 mm in size, from pale white to yellow, with dark yellow spots on the sides; the last segment is conical, with two deep fossae at the base.

Beetles winter in the soil, at a depth of 10 – 15 cm, larvae of different ages – at a depth of 20 – 30 cm. Beetles emerge from wintering, from the second decade of May to mid-June, depending on spring temperatures. They are active in the morning and evening hours, hiding in shelters day and night. They feed on pollen from flowering, including cereal, plants.

The female lays eggs in heaps of 3–5 pieces directly in the grass turf to a depth of 3–5 cm or in the soil near corn plants. One female lays 60 to 200 eggs. The development of the larvae lasts four years. The larvae of the new generation are reborn in June – early July. Especially significant damage is caused by the larvae of the last 2 to 3 years of life. At a density of 5-8 larvae per 1 m2, the cultivation of corn, potatoes, and many vegetable crops becomes impossible without extermination measures.

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