1. Due to the strong permeability of the pesticide, the agent can pass through the stalk epidermal cell layer into the xylem, thereby conducting along the xylem to other parts not applied. Therefore, in the field work, it is better to spray with mist or fine spray. However, when the temperature is high and the amount of evaporation in the field is large, it should be selected before 10 o’clock in the morning and after 4 o’clock in the afternoon. This will not only reduce the amount of liquid used, but also increase the amount and permeability of the crop. Improve the control effect.
2. In order to avoid the resistance of the pesticide, a season crop or a pest should be used 2-3 times, each time interval is more than 15 days.
