Are all kinds of sheds, and some peasants spend twice as much money on drugs as they can't prevent disease. Why? You may wish to take a look at the following content.

Before spraying the sprayer and the pipeline, fighting drugs can not be missed spray, re-spray and so everyone is clear. What is the point before fighting drugs, fighting drugs, and fighting drugs?

1. Clean up the sick body. Sick and sick fruits and even diseased plants are the source of infection. Clearing them out of the shed is to reduce the source of infection and the effect of natural medicine will be better.

2. Select the date of the fight. Most of the farmers are scrounge, and fight drugs once a week or so. However, the prevention of disease is the most important adjustment of environmental conditions, rather than fighting drugs. Some farmers can do not fight drugs for 50 or 60 consecutive days. Only when they fight drugs, do they fight drugs and fight at key points. For example, the day before watering, the day before cloudy days, and the time when the key disease was discovered for the first time. Because you do not fight drugs at this time, it may cause greater losses.

3. Choose the time to fight drugs. The time to fight drugs is not certain, but one of the principles is to maintain ventilation when fighting drugs. The second principle is not to fight drugs during high-temperature and high-light hours, such as summer noon. Once a farmer was encountered in Xinjiang, he did not let off in the morning, the medicine was finished, and he was not ready to let off. This does not work. The entire shed is very wet. Adding so much water in the morning, some germs can enter the vegetables within an hour. If you fight in the afternoon, it should be done half an hour or even an hour before the wind is closed to ensure that moisture is removed. Of course, for individual pests, there is a special time requirement to fight drugs is another matter.

4. The choice of drugs. If it is to prevent diseases, it should be clearly known that the key to the disease at that time was prevention of diseases. For example, tomato gray mold was focused on prevention in the winter and spring, and virus disease was important in the summer and autumn; if it was a cure, the drugs must be symptomatic and inaccurate. Look for experts to see, can not guess.

5. Drug dilution multiples. Pesticides should be used according to the instructions. They can be added slightly, but I do not recommend using them twice. If you feel that the efficacy is not good, you can use other medicines first, and second, improve your medicine.

6. Drug mix. Protect the disease when playing protection agent, the disease can be mixed with the protective agent in the early stage. The pesticide of the same composition should not be mixed, and some farmers do not even look at the ingredients of the pesticide. How can we do it well? Macromolecule-type drugs can generally be compounded, and small-molecule drugs should be used with caution, especially alkaline (Leading away, it is also prudent to mix calcium with other fertilizers and pesticides).

7. The concentration of the drug. The total concentration of all drugs and fertilizers should generally not exceed three-thousandths, and if it reaches five-thousandths of a degree, it is easy to produce phytotoxicity.

8. The effect of spraying. The best effect of the spray is to cover the back of the blade with dense small water spots. This is determined by the pressure of the sprayer and the speed of travel. It is easy for the water to go slowly. The water point is too thin or not to be reached, and the pressure is small. So when you start the fight, check the effect of the spray.

9. One or two days after the fight, observe the epidemic to see if it is necessary to fight the medicine again. Most pesticides do not use more than two consecutive doses of the same ingredient.

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