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2022
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03
Insect screen netting and sticky board can be used together
Author：
Insect screen netting and sticky boards are especially suitable for use in greenhouse vegetables. Greenhouse vegetable insect-proof nets can isolate pests and diseases from migrating into the greenhouse. Effective.
The key to preventing insects from vegetable Insect screen netting in greenhouses is to carry out closed and fully enclosed ventilation holes and gates in the greenhouse to isolate external pests and diseases from entering the greenhouse, so as to reduce the occurrence of diseases. Use 20~30 mesh insect nets to isolate cabbage caterpillars, Spodoptera litura and other lepidopteran nymphs, and use 40~60 mesh insect nets to isolate small and medium-sized pests such as Bemisia tabaci and Liriomyza sativa.
Greenhouse vegetable Insect screen netting sticky board spraying choose the appropriate color sticky board according to the type of pests and diseases sprayed. The light yellow sticky insect board is mainly sprayed to kill whiteflies, aphids, leafhoppers, leafminers, etc., and the blue board is mainly sprayed to kill thrips and various flies. The height-to-width ratio of the sticky board suspension is about 20 cm higher than the top of the main stem, and there are 25~30 sticky boards with a size of 25 cm × 30 cm suspended per mu. If the growth is too high, the main stem can be suspended between the rows. . The suspension time should be carried out when there are no diseases and insect pests at the beginning of the emergence and transplanting of vegetables and fruits to ensure the control effect.
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