Insect-proof Nets Isolate Pests From Vegetables And Fruits
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Insect-proof Nets Isolate Pests From Vegetables And Fruits

Views: 27     Author: Site Editor     Publish Time: 2019-05-17      Origin: Site

Insect-proof Nets Isolate Pests From Vegetables And Fruits

Insect-proof net keep pests out of the nets, so as to prevent pests, diseases and vegetables. Moreover, the light reflected by the insect-proof net has a certain repellent effect on pests.

1. Insect control: Vegetables covered with insect control net can basically avoid the damage of many pests, such as cabbage caterpillar, diamondback moth, cabbage armyworm, Spodoptera litura, yellow-curled beetle, ape leaf insect, aphid and so on. According to the experiment, the control effect of insect control net on cabbage caterpillar, diamondback moth, cowpea pod borer and Liriomyza sativae was 94-97%, and the control effect on aphids was 90%.

2. Disease prevention: Virus disease is a catastrophic disease on many kinds of vegetables, mainly transmitted by insects, especially aphids. As insect net cut off the main route of transmission of pests, the infection of vegetable viruses was greatly reduced, and the control effect was about 80%.

vegetables insect net

3. Adjust temperature, soil temperature and humidity: The test shows that in the 25-mesh white insect-proof net from July to August, the temperature in the morning and evening is the same as that in the open field, while in the sunny day, the temperature is about 1 C lower than that in the open field at noon. From March to April in early spring, the temperature in shelter covered with insect-proof net was 1-2 C higher than that in open field, and the temperature in 5 cm was 0.5-1 C higher than that in open field, which could effectively prevent frost. Rainfall in insect-proof net room can reduce the precipitation in net room, and evaporation in net room can be reduced in sunny day.

4. Shading light: In summer, strong light will inhibit vegetable vegetable vegetable vegetable vegetable vegetable growth, especially leafy vegetables. Insect-proof net can play a certain role in shading and direct light. 20-22 mesh silver-gray insect-proof net should pay attention to aperture when purchasing insect-proof net. 20-32 mesh is suitable for vegetable production.

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