Does the spraying of rice after the emergence of rice stem stalks have control effect?
In the earliest stage of rice growth, the cells of the panicle neck are young and susceptible to invading bacteria. The invading bacteria must be “latent†in the plants for a period of time before the onset of disease. If the bacteria invade, the disease will occur, and the disease will be missed during the favorable period. Also unable to guard. Therefore, to control the invasion of rice blast fungus at the heading stage of rice, due to the inconsistent heading period within a single hole of rice, it is required to spray 2-3 times in this period, each interval of 5-7 days, some farmers have already sprayed 2 - 3 times, still serious illness is because the disease prevention is not timely, only after the invasion of the bacteria began to prevent disease. It is also the key to prevent and control rice blast disease by ensuring that the headings in the field are consistent and orderly.
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