The characteristics of tea production itself determine the difference between tea garden medicine and other crops. Many biological pesticides are not suitable for tea gardens. It is especially safe and reasonable to use medicines in tea gardens. The so-called safe and rational use of pesticides requires good control of pests and diseases. It is safe for humans, animals, fish and tea. It has low residual toxicity, does not pollute the environment, does not kill natural enemies, and can prevent or delay the development of resistance. The most fundamental thing is to resolutely implement the policy of "prevention first, comprehensive prevention" and use pesticides from an ecological point of view. On the basis of agricultural control, chemical control and biological control are combined and coordinated. In the actual production, we should start from the following aspects:
1. Rational use of pesticides . Choose high-efficiency, low-toxic, low-residue, safe and non-adverse effects on tea and natural enemies, and low-cost pharmaceutical products, master the characteristics of the drug and the target of prevention and treatment, and make targeted drugs.
2. Reasonable choice of application period. This is the key to rational drug use. For example, the control of black thorn powder must be applied during the incubation period of larvae; the protection of natural enemies should avoid the application of parasitic natural enemies in the prosperous period; to avoid residual poisons, the safety interval of application should be strictly observed.
3. Use appropriate concentration, dosage and frequency of administration. Only the lowest effective concentration, the dosage and the minimum effective number can be used to meet the economic, safe and effective requirements, in order to save medicine, save labor, save costs, reduce residual poison, and benefit natural enemies. Do not increase the concentration and dosage of the drug at will, and avoid blind application.
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