Tribenuron methyl is a special herbicide for wheat field. It has an excellent effect on the prevention and control of broad-leaved weeds in field inspection, including barley, spring wheat, winter wheat and so on. Tribenuron methyl is endosorbent, which can be absorbed by the roots and leaves of weeds in the field and conducted in weeds. Its mechanism is to use the inhibition of acetyllactate synthase activity to limit the biosynthesis of branched chain amino acids in weeds, and then make weeds appear the symptoms of growth point necrosis and chlorosis of leaf veins, until Dwarfing and withering. For sensitive weeds, the efficacy is rapid and will die in 1-3 weeks. The commonly used dosage forms of tribenuron methyl are 10% tribenuron methyl wettable powder and 75% tribenuron methyl water dispersible granules. The use period was mainly in the 2 leaf stage to the jointing stage of wheat. Before weeds or early post seedling stage, the dosage of 10-20g10% 15-30kg was used to dilute the stems and leaves of weeds. The dosage can be appropriately increased or reduced according to the growth of weeds. The control effects of different kinds of weeds are also different. They have good effects on wheat bottle grass, ionic grass, Artemisia annua, shepherd’s purse, broken rice shepherd’s purse, lithospermum arvense, pig plague, Polygonum roll, while the control effects of lichen, Zoysia, Polygonum, Zeqi, Granna and other weeds are general, while the control effects of duck metatarsal grass, prickly cabbage, iron amaranth, kanmai Niang, pianzhu, wild oats, jiejie wheat The control effect of day Convolvulus and other weeds is poor.
Special attention shall be paid to the use of tribenuron methyl. The drug can only be used once a quarter and can only be used after weeds emerge. Pay attention to the weather when using it to avoid drug damage to the surrounding broad-leaved crops. In addition, it is forbidden to plant sensitive crops such as peanuts in the wheat field where tribenuron methyl has been used.
This product is a selective internal absorption and conduction herbicide, which can be absorbed by the roots and leaves of weeds and transmitted in the plant. It affects the biosynthesis of branched chain amino acids (such as leucine, isoleucine, valine, etc.) by inhibiting the activity of acetyllactate synthase (ALS). After the plant was injured, it showed necrosis of growth points, chlorosis of leaf veins, serious inhibition and dwarfing of plant growth, and finally the whole plant died. Sensitive weeds stop growing immediately after absorbing the agent and die 1-3 weeks later.
Post time: Nov-19-2021