What should we pay attention to before and after covering with insect-proof netting? What are the advantages of using insect-proof netting?

　　Covering greenhouses with insect-proof netting can effectively prevent pests and diseases, as well as regulate temperature, soil temperature, and humidity—offering numerous benefits. However, if the coverage is not done properly, not only will the intended effects fail to materialize, but it could even backfire. Therefore, the following precautions before and after installing insect-proof netting must not be overlooked.

　　1. Before sowing or planting, use high-temperature enclosed greenhouses or spray low-toxicity pesticides to kill pupae and larvae of soil-dwelling insects.

　　2. When planting, seedlings must be brought into the greenhouse with medication, and only healthy plants free from diseases and pests should be selected.

　　3. Strengthen daily management: Close greenhouse doors tightly when entering or exiting the greenhouse, disinfect relevant equipment before starting farming operations to prevent virus introduction, and ensure the effectiveness of insect-proof nets.

　　4. Regularly check the insect-proof netting for tears, and promptly repair any tears you find to ensure no pests can enter the greenhouse.

　　5. Ensure thorough coverage. The insect-proof netting must cover the entire area, with the perimeter sealed tightly using soil and secured firmly with covering film ties. Install insect-proof netting on the doors of large, medium-sized greenhouses and tunnels; be sure to close them immediately when entering or exiting. For small hoop houses, use insect-proof netting that extends well above the height of the crops, ensuring that the vegetable leaves do not come into direct contact with the netting. This prevents pests from feeding outside the netting or laying eggs on the leaves. There should be no gaps between the insect-proof netting used to seal air vents and any transparent covers, as such gaps could provide an opportunity for pests to enter.

　　6. Comprehensive supporting measures. In addition to insect-proof netting, by integrating insect-resistant seeds, heat-tolerant seeds, harmless packaging fertilizers such as Meijia Li Hong, Jinli, Yinglilai, biological pesticides, pollution-free water sources, and micro-spraying and micro-irrigation systems, we can achieve even better results.

7. Use and store properly. After on-site use, insect-proof nets should be promptly collected, cleaned, dried, and rolled up to extend their service life and enhance economic benefits.

　　Speaking of insect-proof nets, they can be considered a great helper for agricultural workers, as the benefits of these nets are multifaceted and primarily manifest in the following areas:

　　1. Economic benefits: Covering vegetables with insect-proof netting enables pesticide-free or low-pesticide vegetable production, thereby saving on costs related to pesticides, labor, and overall expenses. Although the use of insect-proof netting increases initial production costs, its long service life (4–6 years) and extended annual usage period (5–10 months) make it highly cost-effective. Moreover, it can be used for multiple crops—leafy vegetables, for instance, can yield 6–8 harvests—and each harvest requires relatively low input costs (the effect is even more pronounced in years affected by disasters). As a result, vegetable quality is excellent (free from pesticide contamination or with minimal pesticide residues), and yields are significantly boosted.

　　2. Social welfare. This has greatly enhanced the pest-resistant and disaster-resistant capabilities of summer and autumn vegetables, effectively addressing the long-standing issue of vegetable shortages that has plagued both vegetable farmers and urban residents. The benefits are self-evident.

　　3. Ecological Benefits. Environmental issues have increasingly attracted people’s attention. While chemical pesticides offer remarkable control effects, they also reveal numerous drawbacks. The frequent use of pesticides has led to contamination of soil, water, and vegetables. Every year, there are recurring incidents of poisoning caused by consuming vegetables contaminated with pesticides. Moreover, pests have developed increased resistance to pesticides, making control increasingly difficult. Pests such as the diamondback moth and the beet armyworm have even reached a point where no effective treatments remain available. In contrast, cultivation using insect-proof nets achieves pest control through physical prevention methods.

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