Leptinotarsa decemlineata – a dangerous pest in horticulture

Overwinters as imago (adult insect) in the previous year where the soil is cultivated potato and eggplant crops and his best host Colorado potato beetle (Leptinotarsa decemlineata). During the year, attacks and other crops such as peppers and tomatoes. In late April potato beetle emerges from the ground and begins to feeds. The female on the back of the paper lays eggs in colonies of 25 to 80 in number, and in the course of 25-35 days a female can lay 400 to 600 eggs. The larvae feed on the leaves and in a short time can be completely eaten in cultures. Stages of dummy run in the soil and in the summer form the second generation. Because of the protracted emergence of grown insects of gold pieces, generations are mixing and thus difficult and its suppression. If possible main preventive measure is spatial isolation, ie representation of cultures not be good hosts and crops such as tomatoes, potatoes and eggplant can be planted in new areas where the previous year were planted. Insect quickly develop resistance (resistance) of used products. Care should be taken on the threshold of danger. The first generation if greater than 20 units of five plants, and the second generation units 15 5 plants. Once overcome the economic threshold of harm apply chemical protection. Conveniently located on the Colorado potato beetle should be performed with insecticides generally need to change, not to repeat the same for both generations. In any case, practically speaking you should use insecticides with different modes.
There are more chemically active substances with different commercial names that can be used to successfully eradicate this dangerous pest.

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Leptinotarsa decemlineata