Clopyralid + Picloram ——Control of annual broad-leaved weeds

Hormone herbicides.  Clopyralid + Picloram  can be absorbed and transmitted by leaves, roots and stems of plants. Clopyralid + Picloram can quickly spread to the growth point, resulting in deformation, wilting, defoliation and necrosis of the upper part of the plant. Its mechanism is to inhibit mitochondrial respiration and nucleic acid metabolism. Most gramineous plants are resistant, and most dicotyledons (except Cruciferae), weeds and shrubs are sensitive. It is relatively stable in the soil with a half-life of 1-12 months. High temperature and high humidity will decay rapidly.

Picloram is an inhalative herbicide, which can be quickly absorbed by leaves and roots and transmitted in plants. It acts on nucleic acid metabolism, causing plants to produce excessive nucleic acid, transforming some tissues into raw tissues, resulting in abnormal growth of leaves, stems and roots, depletion of storage materials, embolism or rupture of vascular tissue, and gradual death of plants. It is mainly used to control broad-leaved weeds and shrubs in conifer young forest land.

Clopyralid is an endophytic post bud herbicide, which can effectively control Compositae, Leguminosae, Solanaceae and Umbelliferae. is an endophytic post bud herbicide, which can effectively control Compositae, Leguminosae, Solanaceae and Umbelliferae. This product has selectivity in gramineous crops and the same selectivity in a variety of broad-leaved crops, including sugar beet and other sugar beet crops, flax, strawberry and onion crops. In cereal crops (without interplanting), 50 ~ 80 g a.e/ha was mixed with other herbicides. In non gramineous crops, the dosage is 70 ~ 100 g a.e/ha, which can also be mixed with other herbicides to control annual weeds, such as chrysanthemum, or 100 ~ 200 g a.e/ha alone to control perennial weeds, such as field thistle.

The combination of the two drugs can expand the herbicidal spectrum and the application range of crops of Clopyralid and Picloram, and improve the control effect of chlorpyrimidine and dichloropyridinic acid on weeds in rape field. It can improve the control effect of malignant weeds in rape field to a greater extent, expand the killing spectrum, and has a very obvious synergistic effect.