Views: 0 Author: Site Editor Publish Time: 2023-04-07 Origin: Site
Insect net is a new type of agricultural covering material. It is made of high-quality polyethylene, added anti-aging, anti-ultraviolet and other chemical additives, and is woven by wire drawing. It looks like a window screen. It has the characteristics of tensile resistance, water resistance, heat resistance, corrosion resistance, non-toxic and tasteless, and is easy to store. Proper storage life can reach about 3-5 years.
The editor will tell you what aspects to consider when choosing an insect net.
Choose the appropriate specifications, the specifications of organic vegetable insect nets include width, aperture, wire diameter, color, etc. Special attention should be paid to the aperture: if the mesh is large, it will not have the proper insect-proof effect; if the mesh is small, it will shade too much, which is not good for crop growth.
At present, the suitable mesh number is 20-32 mesh, the wire diameter is 0.18 mm, the width is 1.2-3.6 meters, and it is white. If it is necessary to enhance the light effect, black insect-proof net can be used.
Points to note in the process of using insect nets:
Soil disinfection and chemical weeding are important supporting measures before covering with insect mesh. The insect-proof net should be compacted and sealed around to prevent pests from sneaking in and laying eggs. When the small arched shed is covered and cultivated, the arched shed should be higher than the crops, so as to avoid vegetable leaves clinging to the insect-proof net, so as to prevent flea beetles and other pests outside the net from eating the leaves. Lay eggs on vegetable leaves.
Timely increase and decrease temperature:
When the temperature is high, the air temperature and ground temperature inside the net are about 1C higher than those outside the net, which will have a certain impact on the production of organic vegetables. Therefore, in the high temperature season from July to August, the frequency of water supply can be increased to maintain the humidity in the network to increase cooling.
In addition to the advantages of the sun net, the biggest feature of the insect net is that it can prevent insects and diseases, and greatly reduce the use of pesticides. It is a key technology for pollution-free vegetables and a simple, scientific and effective insect control measure.