Pest Nets China insect screen manufacturer
Pest NetsChina insect screen manufacturer
Insect-proof principle: The insect-proof net uses artificially constructed barriers to keep pests out of the net to achieve the purpose of preventing insects and protecting vegetables. In addition, the light reflected and refracted by the insect net has a certain repellent effect on the pests. The application of this technology can greatly reduce dependence on chemical pesticides.China insect screen manufacturershares with you.
Insect-proof objects: After covering the insect-proof net, it can basically eliminate various pests such as Pieris rapae, Plutella xylostella, Spodoptera exigua, Spodoptera litura, Spodoptera frugiperda, Ape leafworm, and aphid to prevent the spread of virus diseases.
Application: Protected vegetable production. Mainly used in summer and autumn for pakchoi, cabbage, cauliflower and solanaceous and melon vegetables. Summer and autumn vegetable seedlings can improve the emergence rate, seedling rate, and seedling quality. For example, using insect nets to isolate aphids and mulching can effectively control mustard virus disease. Cultivate strong seedlings without a virus, the yield increase effect is obvious.
Application points: Soil disinfection and chemical weed control are important supporting measures before covering. Be sure to kill the germs and pests that remain in the soil before covering. The whole growth period is covered, and theinsect-proof netscan be shielded from light, but not much shaded. It is not necessary to cover the day or night or cover the shade, and it should be covered throughout. In case of strong wind of grade 5~6, you should pull up the network cable to prevent the wind from lifting the net. Choose appropriate specifications. The specifications of insect nets include width, aperture, wire diameter, and color. Pay particular attention to the aperture. Large meshes do not provide the desired insect control effect; small meshes cause excessive shading, which is detrimental to crop growth. At present, the suitable mesh size is 20 to 32 meshes, the wire diameter is 0.18 mm, the width is 1.2 to 3.6 meters, and it is white. Comprehensive supporting measures, the selection of heat-resistant and disease-resistant varieties, the use of pollution-free organic fertilizers, biological pesticides, and micro-spray technology can achieve better coverage. Increase the humidity and cool down in time. When the temperature is high, the air temperature and ground temperature in the network are about 1°C higher than outside the network, which will have a certain impact on vegetable production. Therefore, in the high-temperature season from July to August, the number of times of water supply can be increased to maintain the humidity in the network to increase the humidity and reduce the temperature.
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