When mentioning pesticide residues in tea, many people will smell the wind and change color. Therefore, in the process of planting tea, the majority of tea farmers must strictly control the pesticide residues in tea. What are the methods to reduce pesticide residues? Get up and get to know it.
First of all, we must grasp the best period of prevention and control of tea pests and diseases.
The best period for the prevention and control of tea tree pests should be considered from two aspects. The first is to choose according to the "control indicators" of pests and diseases. The control indicators are based on the estimated economic losses caused by the number of pests and diseases. The application of prevention and treatment indicators to guide the application of drugs can reduce the blindness of application; the second is to apply the drug at the development stage where the pests are most sensitive to pesticides, and can receive better control effects.
Second, we must strictly enforce the safety interval of pesticides .
Reduce the amount of pesticide residues in tea, and finally strictly enforce the safety interval of pesticides. Regardless of the application of any pesticide, follow the safety intervals indicated on the label and be sure to pick tea after the safe interval.
Again, master the correct use of pesticides
In order to reduce the amount of pesticides used, the use of pesticides must be optimized in production. First, according to the law of the occurrence of pests and diseases, improve the target rate of pesticides on pests and diseases, such as the use of tea black moth, tea caterpillars and other pests, the younger larvae in the middle of the tea bushes on both sides of the back of the group habitat habits, in the density of insect population Tea gardens that exceed the control indicators are sprayed on both sides of the tea bush to directly reduce the residual amount of pesticides in the fresh leaves; secondly, different sprayers are selected according to different topography, different tea gardens and intensification degrees; thirdly, according to different pest types and Tea garden type, using different spray methods.
Finally, we must choose high-efficiency and low-toxic pesticide products.
There are many kinds of pesticides, and their physical and chemical properties and biological activities are different. For the prevention and control of pests and diseases of tea trees, high-efficiency, low-toxic and low-residue pesticides should be selected, and the dosage should be minimized. Generally, a drug is used once a season, and it is used no more than twice a year. This can effectively reduce the residue of certain pesticides in tea.
Pesticide residues are not as terrible as imagined. As long as the correct method is mastered, it is completely controllable. If you want to know more about pesticides, please pay attention to the Chinese pesticide network .
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