Everyone knows that vegetables are particularly afraid of pests and diseases, and pests and diseases are also a headache for many vegetable greenhouse owners. Therefore, the installation of mist net for catching birds will be very necessary. The coverage of insect nets can effectively solve the problem of vegetables. It can also adjust environmental factors such as humidity and temperature in the greenhouse to ensure the healthy growth of vegetables. However, the manufacturer of insect nets reminds everyone that you must worry more about the coverage of insect nets.
1. First of all, in the selection of insect-proof nets for greenhouses, the mesh number, color and width of the gauze should be considered. If the mesh is too small and the mesh is too large, it will not achieve the desired insect-proof effect; and if the number is too large, the mesh is too small, although it can prevent insects, but the ventilation is poor, resulting in high temperature and too much shading, which is not conducive to Crops grow. Generally, 22-24 mesh insect nets should be used. Insect-proof net manufacturers believe that in spring and autumn, compared with summer, the temperature is lower and the light is weak, so white insect-proof nets should be used; in summer, in order to take into account the shading and cooling, black or silver-gray insect-proof nets should be used; In some areas, in order to repel aphids and prevent virus diseases, silver-gray insect nets should be used.
2. To ensure the quality of coverage The insect-proof net of the greenhouse should be fully enclosed and covered, and the surrounding areas should be compacted with soil and firmly fixed with a lamination line; the doors of entering and leaving the large, medium and greenhouse must be installed with insect-proof nets, and pay attention to close it immediately when entering and leaving. Insect-proof nets cover cultivation in small arched sheds, and the height of the scaffolding should be significantly higher than that of the crops, so as to avoid vegetable leaves from clinging to the insect-proof nets, so as to prevent pests from eating outside the nets or laying eggs on vegetable leaves.
There should be no gap between the insect-proof net used for closing the air vent and the transparent cover, so as not to leave an entry and exit channel for pests. Check and repair holes and gaps in the insect net at any time.
3. Pest control treatment Seeds, soil, plastic sheds or greenhouse skeletons, frame materials, etc. may contain pests and eggs. After the greenhouse is covered with insect-proof nets and before planting vegetables, it is necessary to carry out insecticide treatment on the seeds, soil, greenhouse skeleton, frame materials, etc. This is the key link to ensure the cultivation effect of insect-proof nets.
Everyone must pay more attention to the coverage of raschel mesh for sale, including the selection of the mesh in the early stage, the cover mesh in the middle stage and the protection mesh in the later stage. The function is fully exerted to ensure the healthy growth of vegetables, thereby increasing the yield.