Bensulfuron methyl*fluoroglycofen-ethyl water emulsion

Abstract

The invention discloses a bensulfuron methyl* fluoroglycofen-ethyl water emulsion which is prepared from the following raw materials and auxiliary agents in percentage by weight: 2-10 percent of bensulfuron methyl, 1-10 percent of fluoroglycofen-ethyl, 5-30 percent of dimethylbenzene, 2-20 percent of castor oil polyoxyethylene ether, 2-20 percent of oleic acid prenyl acetate, 2-20 percent of alkylphenol polyoxyethylene ether, 1-5 percent of propylene glycol, 1-5 percent of glycerol, 0.1-2 percent of xanthan gum and the balance of water. After the raw and auxiliary materials are mixed and dissolved, the water is added to be fully mixed, sheared and adjusted to obtain the bensulfuron methyl * fluoroglycofen-ethyl water emulsion. The bensulfuron methyl is inner adsorbing conduction type herbicide, and the fluoroglycofen-ethyl expresses contact killing activity; by mixing the bensulfuron methyl and the fluoroglycofen-ethyl, the bensulfuron methyl* fluoroglycofen-ethyl water emulsion has mutual promoting pesticide effect, obvious synergy and favorable preventing and removing effect on poaceae and broadleaves, and weeds in the whole growing period of a wheat field can be controlled by application once; and the two active components can be used as the herbicide of a paddy field, thereby being safe for rice which is the aftercrop of wheat.

Description

technical field [0001] The invention relates to a compound herbicide for preventing and controlling wheat post-emergence weeds - bensulfuron-methyl-fluoxyfen aqueous emulsion, which belongs to the technical field of pesticides. technical background [0002] At present, the weeds that harm wheat mainly include broad-leaved weeds such as Artemisia sativa, shepherd's purse, pig's weed, mother-in-law, chickweed, wheatgrass, etc. In particular, winter wheat suffered the most severe damage. At present, for the prevention and control of weeds after emergence in wheat fields, the main method is to spray herbicides at the 2-4 leaf stage of wheat, and the main varieties have been limited to 2-4 drops of butyl ester, 2-methyl-4-chloride, dicamba, and octanoyl bromoxynil , bentazone and tribenuron-methyl, etc., especially tribenuron-methyl and its compound preparations are the most widely used. However, in the synthesis process of tribenuron-methyl, other components that are not easy ...

AI Technical Summary

Problems solved by technology

However, in the synthesis process of tribenuron-methyl, other components that are not easy to degrade in the environment, such as metsulfuron-methyl and chlorsulfuron-methyl, are likely to remain, which poses a great safety hazard to wheat crops, such as rice. Rice production is reduced or even eliminated

On the other hand, because tribenuron-methyl and its compound preparations have been used for many years, weed-resistant physiological races have appeared in many places, and the control effect of conventional dosage has declined. In order to ensure the control effect, it is necessary to increase the dosage

In this way, it not only increases the cost of medication, but also tends to cause recessive phytotoxicity in wheat and reduce production.

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