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The production of summer and autumn vegetables has seriously affected the consumer's consumption safety because of many pests and the application of pesticides. Therefore, how to reduce or not use pesticides to produce pollution-free summer and autumn vegetables has become an urgent problem. In recent years, we have used insect net to block the cultivation of summer and autumn vegetables, to avoid the direct damage of pests or to lay eggs inside, so that no or less pesticides are used, and the vegetables produced have reached the requirements of pollution-free, and the effect is very good.

The fruit tree insect control net not only has the function of sunshade, but also has the function of insect control. It is a new material to prevent the field vegetable pests. The insect control net is mainly used for raising seedlings and cultivation of cabbage, cabbage, radish, cabbage, cauliflower, eggplant, fruit, melon, beans and other vegetables in summer and autumn, which can improve the emergence rate, seedling rate and seedling quality

For a part of overwintering vegetables, the best way to prevent insect pests is to set up insect prevention net in advance, which can play an effective insect control effect and solve the problem that overwintering vegetables are prone to insect pests before and after planting.

Insect net cover cultivation is a new practical and environmentally-friendly agricultural technology that increases yields by constructing artificial isolation barriers on the scaffolds to keep pests out of the net, cutting off the pest (adult) reproduction pathways, and effectively controlling various pests.

The robust seedling index of white net, blue net and silver grey net increased by 41.2%, 15.4% and 55.2% respectively, while that of black net decreased by 9.7%.

Norway, Japan, Greece, Chile are relatively developed aquaculture countries.The most advanced and typical deep-water cage farming is Norway.