Micro-emulsion herbicide containing aquacide and haloxyfop-R-methyl and preparation method of micro-emulsion herbicide

Abstract

The invention belongs to the technical field of pesticides, and discloses an aquacide and haloxyfop-R-methyl microemulsion herbicide, which is composed of the following components in percentage by weight: 10 to 19 percent of aquacide, 1 to 3 percent of haloxyfop-R-methyl, 10 to 15 percent of oil-soluble surfactant, 4 to 8 percent of water-soluble surfactant, 2 to 6 percent of solvent, 0.5 to 1.5 percent of stabilizer and the balance of water. According to the aquacide and haloxyfop-R-methyl microemulsion herbicide prepared by the preparation method disclosed by the invention, a water-soluble herbicide aquacide and an oil-soluble herbicide haloxyfop-R-methyl are creatively compounded into the microemulsion herbicide, and the aquacide and the haloxyfop-R-methyl are compounded by adopting a small amount of organic solvent, so that a synergistic effect is achieved, the use amount of the aquacide and the haloxyfop-R-methyl is reduced, meanwhile, the technical problem that the microemulsion is poor in stability is solved, and wide application prospects are achieved.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and relates to a microemulsion herbicide of diquat and high-efficiency haloxyfop-pylene and a preparation method thereof. Background technique [0002] Diquat, chemical name: 1,1'-ethylene-2,2'-bipyridine dibromide, is a non-selective contact herbicide with a little conductivity. After being absorbed by green plants, it inhibits the electron transfer of photosynthesis. Under the induction of light, the bipyridine compound in the reduced state is quickly oxidized in the presence of oxygen to form active hydrogen peroxide. The accumulation of this substance destroys the plant cell membrane, and the affected The part of the medicine is withered and yellow. Diquat weed control has the advantages of fast weeding speed, stable efficacy at low temperature, low residue and easy degradation, etc. It has good control effect on broad-leaved weeds. However, because it does not kill the root system, it i...

AI Technical Summary

Problems solved by technology

However, many users do not understand the nature of the original drug, or have insufficient experience in use, and cannot accurately grasp the amount of addition when using it.

If the amount added is too small, a better weeding effect cannot be achieved, and repeated application of pesticides will be required in the later stage, which will increase the cost of medication and may also cause weeds to develop resistance; A series of problems such as environmental pollution; at the same time, because the high-efficiency haloxyfop-pyl is an oil-soluble herbicide, and diquat is a water-soluble herbicide, the direct compounding of the two will cause a certain degree of chemical instability, so there is currently no report on Relevant technologies for the compounding of the two

Although there are relevant reports of making water-soluble herbicides and oil-soluble herbicides into microemulsions, the methods for preparing microemulsions are different for different herbicides, and surfactants need to be added during the preparation of emulsions. The addition of different surfactants tends to promote the movement of the herbicide at the interface between the oil phase and the water phase and increase the chemical decomposition. Therefore, the preparation of microemulsions of different compound herbicides is quite different, and the two components are compounded. The effect is also unpredictable, therefore, the present invention provides a microemulsion herbicide compounded by diquat and high-efficiency haloxyfop

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