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The own characteristics of tea production determines that there are significant differences between medication and other crops. Many pesticides are not suitable for tea, tea in medication is particular need to pay attention to safety, and reasonable. The so-called safe, rational use of pesticides is required to do pest control effect on people, animals, fish, tea, safety, residual toxicity, no pollution, no destruction of natural enemies, can prevent or delay the emergence of drug resistance, in a nutshell that is to be done economical, safe and effective.
1.Reasonable choice of pesticides. Choosing pharmacy varieties that efficient, low toxicity and residue, being safe to tea and natural enemies without adverse effects and cheap. Grasping the characteristics of pharmacy and control objects, done targeted medication.
2.Reasonable choice of spraying period. This is the key of rational drug use. Such as the prevention and treatment of spiny whitefly must administer in larvae hatch period. Protecting natural enemy should avoid applying pesticide from the parasitic natural enemy eclosion stage. Avoid pesticide applying forms should strictly abide by the security clearances.
3.Using the appropriate concentration, medication dosage and frequency. Use the lowest effective concentration, the minimum effective dosage and frequency, in order to meet the economic, safe and effective requirements to the provincial drug, labor, save costs, reduce residues, beneficial predators. Should not arbitrarily increase drug concentrations and dosage and avoid blindly spraying.
4.Using appropriate application methods. According to the actual situation of the pesticide formulations and the tea plantations, select the appropriate method.
5.Using the pesticides mixing or in turns appropriatlly. It can prevent pest resistant and reduce the frequency of drugs use,while it also has the funcation of governance and synergies. Using the pesticides in turns should grasp the ability of chooses the pesticides which have the different mechanism of toxicology and will not produce interaction resistance.Besides,mastering that mixing pesticides should not adverse chemical reactions and physical changes, should not produce the adr of crops.For new varieties of pesticides, should do the plot test firstly to check if they can be mixed, then to promote.
6.To view control effect correctly.Don't one-sided pursuit of the percentage of prevention and control,view the control effect from the view of ecological point and economic benefit of agricultural production,don't rely on chemicals simply,don't be one-sided pursuit of high percentage of prevention.