1. Spray the protective bactericide before the rain to prevent the occurrence of the disease. After the heavy rain, spray the systemic fungicide. If there is rain, you should pay attention to the spray before the rain.
2. In order to avoid phytotoxicity during high temperature season, choose high-quality, safe, and high-efficiency pesticides, and do not arbitrarily increase the multiple of medication.
3, do not spray Bordeaux before the rain: Bordeaux spray before the rain, after the rain washed off the lime on the fruit surface, but left the copper ions, it will stimulate the peel layer, produce phytotoxicity, the formation of fruit rust, affect Fruit appearance quality and product value.
4, do not spray in the drought, high temperature weather: General pesticide suitable temperature 20-30 °C, the maximum does not exceed 32 °C, so before 10 o'clock in the morning, 15 o'clock after the spraying is relatively safe, most pesticides in the weather is too Drought, spraying with high temperature, rapid evaporation of water, easy to increase the concentration of pesticides, coupled with fruit trees to absorb liquid fast, strong metabolism of physiological function, and relatively reduced resistance, and thus prone to phytotoxicity.
2. In order to avoid phytotoxicity during high temperature season, choose high-quality, safe, and high-efficiency pesticides, and do not arbitrarily increase the multiple of medication.
3, do not spray Bordeaux before the rain: Bordeaux spray before the rain, after the rain washed off the lime on the fruit surface, but left the copper ions, it will stimulate the peel layer, produce phytotoxicity, the formation of fruit rust, affect Fruit appearance quality and product value.
4, do not spray in the drought, high temperature weather: General pesticide suitable temperature 20-30 °C, the maximum does not exceed 32 °C, so before 10 o'clock in the morning, 15 o'clock after the spraying is relatively safe, most pesticides in the weather is too Drought, spraying with high temperature, rapid evaporation of water, easy to increase the concentration of pesticides, coupled with fruit trees to absorb liquid fast, strong metabolism of physiological function, and relatively reduced resistance, and thus prone to phytotoxicity.
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