What medicine should fruit trees take in different periods?

1. Before the fruit trees bloom, it is necessary to apply fruit protection drugs, which can increase the probability of fruit setting, increase the yield of fruit trees and reduce the probability of fruit dropping. The types of chemical substances can be used as growth regulators, which can regulate the growth of fruits, mainly gibberellin and naphthylacetic acid. And the concentration used does not need to be too high.

2. 7- 10 days after the flower withers, it is necessary to apply pesticides once to prevent pests and diseases, reduce the possibility of pests and diseases and eliminate hidden dangers. The specific drug types need to be more selective according to the types of fruit trees, such as stone sulfur mixture.

3. In the fruit expansion period, Zhuangguodiling can be sprayed once, which can thicken the fruit stalk, increase the nutrient transport, and prevent the fruit from falling off or leading to abnormal fruit.

Extended data:

Precautions:

1, the concentration of pesticides should not be concentrated: when spraying pesticides on fruit trees in high temperature weather, it should be noted that the concentration of the liquid medicine should not be too high, because the water in the liquid medicine is easy to evaporate in high temperature environment, which makes the water in the medicine quickly spread and disperse, which also improves the concentration of the liquid medicine to some extent.

2. It is not suitable to apply pesticides at noon: at noon in summer, the temperature is the highest in a day, and many farmers are eager to achieve success. They like to use pesticides when it is hot at noon, thinking that the effect will be faster. In fact, this is a wrong practice, because the temperature is extremely high at noon, the pests will be reduced accordingly, and the application at noon will not only fail to reach the pests themselves, but also greatly reduce the effect.

3. Take protective measures: users will sweat a lot even if they don't exercise at high temperature, not to mention taking medicine. Many fruit farmers wear short-sleeved shorts when taking medicine to cool off the heat, which is a very dangerous behavior. High temperature will expand the pores of human skin, and the liquid medicine will contact with human skin after volatilization and dispersion, and will be absorbed by pores, thus causing human poisoning.

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