For grassy weeds, commonly used herbicides include quizalofop-p-ethyl, high-efficiency flufenamethoxazol, etc. After 3 leaves of the vegetables are displayed or after compound leaves, 3-5 leaves of the weeds are sprayed on the stems and leaves. . As for broad-leaved weeds in these vegetable fields, flucarbazone may be used, but directional spraying is preferable. In addition, the vegetables growing in the greenhouse are younger and more resistant than the vegetables grown in the open field. The dosage of the herbicide after spraying the seedlings should not be too large, the time is slightly later, and the level of wood and vegetables in the stems and leaves is higher. Spraying more safely. Jiangsu Tiera Biotechnology Co., Ltd , https://www.tierabio.com