1. Governance is important, and prevention is fundamental. Many vegetable farmers in the process of controlling pests and diseases are just trying to understand what kind of medicine they can use to cure such diseases or insects. The emphasis is on how to treat them. This kind of prevention and control point of view is that most agricultural farmers exist, but do not think about how to avoid the occurrence of pests and diseases, what kind of agricultural operations should be done before the occurrence of pests and diseases, cut off the spread of pests and diseases, and consciously worsen the worms The conditions of survival and reproduction, thereby reducing the occurrence of pests and diseases. Especially in the process of controlling insects, we should pay more attention to the important role of “prevention†and attach importance to every small agricultural operation (by seedlings, string sheds, and rotary cultivators). 2. Root knot nematodes cannot be eradicated. Root nematodes cannot be eradicated completely. Early prevention, early detection and early treatment should be done in accordance with actual planting conditions. Comprehensive prevention and control measures should be used comprehensively to carry out comprehensive prevention and control, especially paying attention to the comprehensive use of agriculture and physical measures to reduce input costs, and chemistry. Combine prevention and control to enhance control effectiveness. It is particularly worth noting that in the selection of chemical agents, high-efficiency and low-toxicity pesticides should be used, such as Jianzhibao (inhibitory type), nematode biquads, Kekedan, etc., to avoid the use of highly toxic pesticides. As soon as possible to achieve pollution-free vegetable planting and standardization. 3. Nematodes can be transmitted through various means, but the main route of transmission in the old vegetable growing areas is through unreasonable agricultural practices (string shed, seedlings, arbitrarily discarding diseased plant residues, applying unripe organic fertilizers, and heavy use). Fertilizer caused deterioration of the soil environment, etc.), which expanded the spread of nematodes and aggravated the degree of damage. 4. Avoid the use of highly toxic agents. Highly virulent killing agents are generally highly toxic and highly residual pesticides, which can cause residual contamination of vegetables, have a great impact on human health, do not meet the requirements of vegetable production without pollution, and are highly toxic The use of the process, causing greater losses. And due to the special environmental conditions of nematode survival, the control effect of the highly toxic nematicicide is not ideal, and the use of highly toxic and highly toxic agents is not worth the benefit.
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