What should be paid attention to when spraying fruit trees in high temperature weather in summer?

There are many fruits on the market in summer, and it is also the most difficult time for growers to manage, because the temperature is very high, it is easy to cause rotten fruit and no fruit caused by some insect pests. At this time, some chemicals have to be sprayed to reduce the attack of insect pests. Fruit trees are highly sensitive to pesticides in summer high temperature weather, and fruit farmers are prone to improper use of pesticides. What should be paid attention to when spraying fruit trees in summer high temperature weather?

Note 1: spray time should be mastered.

Fruit growers have a misunderstanding about the spraying time, thinking that the higher the temperature, the better the spray effect. In fact, when the temperature is particularly high, pests are hiding to enjoy the cool, even spraying pesticides can not be sprayed on them. In summer, the effect of the medicine is relatively fast and decomposes quickly, even if the spray is sprayed at this time, it may not achieve the desired effect. Spraying in hot weather in summer has another disadvantage, it is easy to poison people who spray medicine, because the effect is relatively strong.

If the spray is not ideal when the breakfast is relatively cool, because there is still a lot of dew at this time, the spray will be diluted by the dew, so the efficacy will be reduced, and the prevention and control effect is not obvious.

To sum up, the general good time for spraying is after 90 o'clock in the morning or 4 o'clock in the afternoon, and the effect of spraying is better.

Note 2: the concentration of the agent should be well controlled.

Fruit trees are more sensitive to drugs in the period of exuberant growth, so they are prone to drug injury when the drug concentration is relatively high, and if the concentration is too low, it will not have the effect of preventing insect pests. At this time, we have to use pesticides reasonably according to the sensitivity of different varieties of fruit trees to each pesticide. For example, Bordeaux liquid is often used in apples and grapes, but the same medicine is not suitable for peaches, so be sure to understand its characteristics before spraying, so as not to harm the fruit trees if the control is not done well.

Note 3: spraying personnel should pay attention to safety

Many fruit growers do not take protective measures when spraying pesticides, and some are directly naked, which is irresponsible to their own bodies, and it is easy to cause poisoning when the medicine is absorbed by the skin. Therefore, when spraying pesticides, fruit growers must pay attention to wearing masks and protective clothing. After spraying pesticides, they should take a bath in time and clean their mouths and faces so as to avoid poisoning.

Note 4: fruit trees have drug resistance

Spraying pesticides is the same as taking medicine when you are sick. After taking a drug for a long time, you will become resistant to it, and the effect will be less obvious the next time you regenerate this kind of disease. The use of pesticides in fruit trees is the same, be careful not to continue to use a pesticide, but need to rotate the type or mix drugs.