Before and after flowering, fruit trees are the key period for the emergence, spawning and emergence of various pests, and also a key period for the prevention of pests against fruit trees. The flowering period and young fruit of the fruit tree are sensitive to pesticides, and often cause phytotoxicity due to improper spraying. Therefore, it is necessary to be cautious in the flowering period.
In production, it is seen that after the flower inflorescence is completely separated and 15 days after the flowering, the insecticide is sprayed, which has different effects on the quality of the fruit. The fruit rust is serious and the commodity value is lowered. Therefore, in the production to grasp the law of the occurrence of insects, pesticides should be sprayed before the incomplete inflorescence or 20 days after the flowering, to avoid the use of pesticides during the flowering period, and not to increase the concentration of pesticides arbitrarily, so as not to seriously affect the quality of the fruit.
In production, it is seen that after the flower inflorescence is completely separated and 15 days after the flowering, the insecticide is sprayed, which has different effects on the quality of the fruit. The fruit rust is serious and the commodity value is lowered. Therefore, in the production to grasp the law of the occurrence of insects, pesticides should be sprayed before the incomplete inflorescence or 20 days after the flowering, to avoid the use of pesticides during the flowering period, and not to increase the concentration of pesticides arbitrarily, so as not to seriously affect the quality of the fruit.
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