Dicamba compound herbicide

Abstract

The invention discloses a dicamba compound herbicide which comprises a first active ingredient-dicamba, a second active ingredient and an auxiliary. The second active ingredient is one of or a combination of several of chlortoluron, chlorsulfuron, isoproturon, methsulfuron, iodosulfuron methyl sodium salt, clodinafop acid and pinoxaden, the auxiliary is a composition of more than two of dispersant, emulsifier, wetting agent, disintegrant, binder, anti-freezing agent, thickener, filler and solvent, and the compound herbicide can be wettable powder, emulsifiable concentrate, suspension agent, water dispersible granules and soluble liquid. A mass ratio of the first active ingredient to the second active ingredient in the dicamba compound herbicide is 1:50-1:2. The dicamba compound herbicide can be used for preventing and killing both broad-leaf weed and grassy weed in wheat fields, can expand weed killing spectrum, improve prevention effect and delay weed resistance and can reduce consumption of dicamba, lower using cost and improve safety to wheat.

Description

technical field [0001] The invention belongs to the technical field of pesticides and relates to a compound herbicide containing dicamba. Background technique [0002] Wheat is the main food crop in my country, and weeds in wheat fields seriously affect the growth of wheat. Weeds in wheat fields mainly include broad-leaved weeds and gramineous weeds. Among them, weeds that are more common in the country and cause serious damage to wheat seedlings There are 19 species, including Artemisia persicae, Spondylos chinensis, Nestweed, Quinoa, Amaranthus, Purslane, Chickweed, Clubhead Grass, Bermudagrass, Paspalum, Golden Foxtail, Thistle, Duckweed Plantagograss, flat storage, field bindweed, lettuce, small bindweed, blue cabbage, Qianjinzi, Qianjinzi and reeds. In recent years, with the continuous expansion of wheat planting area, weed damage is also increasing day by day. In order to reduce the economic loss caused by weed damage and ensure that the growth of wheat is more stable. ...

AI Technical Summary

Problems solved by technology

[0005] Dicamba is a high-efficiency and low-toxic herbicide that is encouraged and developed by the state. It has the characteristics of strong herbicidal power, rapid drug effect, low dosage, moderate long-lasting effect, and high economic benefits. In recent years, with the large-scale use of dicamba, Some broad-leaved weeds have gradually developed resistance to it, seriously affecting the use of dicamba, and because dicamba has a narrow herbicidal spectrum, it can only control some broad-leaved weeds, but has almost no control effect on gramineous weeds , used alone cannot completely and effectively control the occurrence of weeds in wheat fields. In addition, the price of dicamba is relatively high, so it has great limitations when used alone. It is necessary to improve the control effect by compounding other available herbicides in wheat fields.

[0006] The use of chlorotoluron, chlorsulfuron, isoproturon, metsulfuron-methyl, and iodosulfuron-methyl sodium salts in wheat fields can prevent and control most of the annual grass weeds and some broad-leaved weeds, while clodinac and pinoxaden Ester can control most grass weeds in wheat fields, but has little effect on broadleaf weeds

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