What Details Should You Pay Attention to When Using Insect Mesh Protection Netting in Greenhouses ?

When using greenhouse insect mesh protection nettings, we must pay attention to several details in order to achieve good results.

• First of all, when choosing insect mesh protection nettings for greenhouses, factors such as the mesh count, color, and width should be considered. If the mesh count is too small and the mesh opening is too large, it will not be able to play the insect-proof effect. On the other hand, if the mesh count is too high and the mesh opening is too small, the ventilation will be poor, leading to higher temperatures and excessive shading, which is not conducive to crop growth. The recommended mesh count is 22-24 for insect mesh protection nettings.

In spring and autumn, the temperature is lower and the light is weaker, so white insect mesh protection nettings are more suitable. In summer, to balance shading and cooling, black or silver-grey insect mesh protection nettings are more appropriate. In areas where aphids and viral diseases are serious, silver-grey insect mesh protection nettings are more effective in repelling aphids and preventing viral diseases.

• Ensure the coverage quality of the insect mesh protection netting. The insect mesh protection netting should be fully closed and covered. The surrounding area should be compacted with soil, and firmly fixed with pressure film lines. Doors for entering and exiting the greenhouse or shed must have insect mesh protection nettings installed, and must be closed immediately after entry or exit.

For small arched greenhouse insect mesh protection netting coverage, the height of the greenhouse frame should be significantly higher than the crops to avoid the crop leaves coming into contact with the insect mesh protection netting, which can prevent pests from feeding or laying eggs on the vegetable leaves. When using insect mesh protection nettings to close ventilating openings, no gaps should be left between the net and the transparent covering to prevent pests from entering and exiting. Check and repair any holes or gaps in the insect mesh protection netting at any time.

• Insect eradication on the insect mesh protection netting. Seeds, soil, plastic greenhouses or greenhouse frameworks, and building materials may carry pests and insect eggs. Before planting crops under the insect mesh protection netting, it is necessary to carry out insect eradication treatments on seeds, soil, greenhouse frames, and building materials. This is a crucial step to ensure the effectiveness of insect mesh protection nettings, preventing the massive occurrence of diseases and pests inside the net and causing serious damage. Some farmers also choose to use a combination of thiamethoxam, pymetrozine, and jiamihongli to prevent the outbreak of piercing-sucking pests, which has achieved good results.
• Select suitable varieties for planting under the insect mesh protection netting, and pay attention to inter-row and inter-plant spacing during planting, appropriate thinning.
• When fruit trees are covered with nets for sun shade, the soil should be deeply tilled, and sufficient base fertilizer such as mature farmyard manure or compound fertilizer should be applied. In the growth and development period of crops, timely apply soil conditioners to strengthen plant resistance to stress and pest and disease damage.
• Insect mesh protection netting can help to keep warm and moist, therefore, pay attention to the temperature and humidity in the net when carrying out field management. After watering, ventilate and drain promptly to avoid the occurrence of diseases and pests caused by high temperature and humidity.