Pest Type: Cabbage Pest
Row: Hemoptera – Hemiptera
Family: Pentatomides – Pentatomidae
It is found everywhere, very numerous. It damages various varieties of cabbage, radish, radish, turnip, swede, wild cabbage plants.
The adults are 8-10 mm in size, the body is flat, the anterior back is red with 6 black spots, on the scutellum and elytra; abdomen red from above, last segments black; antennae with 5 segments; a triangular flap covers most of the abdomen. The egg is 0.6-0.8 mm in size, barrel-shaped, rounded from the bottom, covered with a convex lid on top, which opens when the larva hatches. The imago larva is similar.
Immature bugs overwinter under the fallen leaves at the edge of the forest, in forest belts, gardens, parks, on the slopes of beams, roadsides. In April-May, they leave wintering places. Additionally, they feed on cabbage weeds, and with the emergence of shoots of cultivated cabbage plants and seedlings in bulk fly over to them. The female lays eggs in 12 pieces, placing them in two rows, often on the underside of the leaves.
Fertility is up to 300 eggs. Embryonic development lasts 6-12 days. Larvae feed on plants for 25-40 days, turning into an adult insect. After additional feeding, bedbugs give rise to the second generation, which develops in July-August.
Adult bedbugs and larvae do harm by piercing the skin of leaves or flower stalks with a proboscis and sucking out the juice from them. Light spots appear at the puncture sites, the tissue dies, falls out, and irregularly shaped holes form. If the testes are damaged, the flowers and ovary fall off, the quality of the seeds worsens. The harmfulness of bedbugs rises sharply in dry and hot weather. Cabbage crops can also damage rapeseed bug-E. Oleracea L. Which have much in common in the biology and nature of the damage with cabbage bugs.
Eggs of cruciferous bugs populate egg-eaters. During the growing season, tahini and others parasitize on bugs.
Protective measures. Early planting seedlings and high agricultural technology increase the resistance of plants to damage. The destruction of cabbage weeds. In the presence of two or more bugs per plant, spraying with insecticides.