1. 50% shade net coverage of vegetables can not only prevent the occurrence of pests to a certain extent, but also avoid the occurrence of cabbage caterpillars, diamondback moths, aphids and other pests; at the same time, the disease prevention effect is obvious, especially the spread of aphids is blocked The spread of pests, especially the spread of aphids, has greatly reduced the prevalence of viral diseases and prevented the harmful effects of viruses in vegetable greenhouses on greenhouse cultivation.
2. The insect-proof net makes the vegetable and fruit greenhouse more stable, promotes the growth of vegetable and fruit, and is beneficial to crops and the conditions in the greenhouse. Insect-proof nets are generally effective in preventing insects, and special attention should be paid to the installation of insect-proof nets in vegetable greenhouses. Insect-proof net manufacturers, greenhouse insect-proof nets, vegetable insect-proof nets, fruit tree-proof nets, and insect-proof nets wholesale.
3. The insect-proof net can reasonably adjust the temperature, soil temperature and humidity of vegetable greenhouses. When it is hot in summer, cover the vegetable greenhouse with a white insect-proof net. Sooner or later, the temperature in the greenhouse will be the same as the outdoor temperature, which is about 1 lower than the open air temperature at noon. In the spring and autumn, cover the black insect-proof net to achieve thermal insulation and reasonably relieve frost.
The vegetable insect net can prevent part of the precipitation from falling in the greenhouse, reduce the humidity in the field, and reduce the incidence of diseases. When the weather is good, the evaporation of water in the greenhouse can be reduced. Of course, this not only reflects the effect of shading, but also reflects the strong sunlight in summer to a certain extent, which inhibits the vegetative growth of vegetables, especially fruits. hd polyethylene shade net company insect nets play a shading role.