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CN-118370322-B - Weeding composition

CN118370322BCN 118370322 BCN118370322 BCN 118370322BCN-118370322-B

Abstract

The invention discloses a weeding composition and application thereof, wherein the weeding composition comprises an active ingredient A and an active ingredient B, wherein the active ingredient A is a compound shown in a formula (I), and the active ingredient B is any one of flumetsulam and flumetsulam. The mass ratio of the active ingredient A to the active ingredient B of the composition is 1:20-10:1. The invention also relates to the application of the weeding composition in controlling the germination or growth of weeds in useful plants, and the weeding composition is particularly suitable for controlling the germination or growth of weeds in peanut fields.

Inventors

  • GE JIACHENG
  • LIU JING
  • LIU JINLING
  • ZHANG FANG
  • LIU GUIJUAN
  • SUN MINGSHUAI

Assignees

  • 青岛恒宁生物科技有限公司

Dates

Publication Date
20260505
Application Date
20240419

Claims (8)

  1. 1. A herbicidal composition comprising an active ingredient a and an active ingredient B, wherein the active ingredient a is a compound of formula (I): (I) The active component B is selected from one or more of flumetsulam and flumetsulam, The mass ratio of the compound of the formula (I) to the florasulam is 1:10-2:1; the mass ratio of the compound of the formula (I) to the flumetsulam is 1:18-2:3.
  2. 2. The herbicidal composition of claim 1 wherein the mass ratio of the compound of formula (I) to flumetsulam is 2.5:5, 2.5:15, 2.5:25, 5:5, 5:15, 5:25, 10:5, 10:15, 10:25; The mass ratio of the compound of the formula (I) to the flumetsulam is 2.5:15, 2.5:30, 5:15, 5:30, 5:45, 10:15, 10:30 and 10:45.
  3. 3. The weeding composition according to claim 1, wherein the sum of the mass of the active ingredient A and the mass of the active ingredient B accounts for 1% -90% of the composition.
  4. 4. The weeding composition according to claim 1, wherein the sum of the mass of the active ingredient A and the mass of the active ingredient B accounts for 5% -85% of the composition.
  5. 5. The herbicidal composition of claim 1, wherein the herbicidal composition comprises an auxiliary ingredient selected from one or more of a wetting agent, a dispersing agent, an emulsifying agent, a thickening agent, a disintegrating agent, an antifreezing agent, an antifoaming agent, a solvent, a preservative, a stabilizer, a synergist, a binder or a filler in addition to the active ingredient.
  6. 6. The weeding composition according to claim 5, wherein the weeding composition is prepared into any one of emulsifiable concentrates, suspending agents, wettable powder, water dispersible granules and dispersible oil suspending agents.
  7. 7. The use of the herbicidal composition according to any one of claims 1 to 6, wherein the weeds are green bristlegrass, calla, amaranthus retroflexus, xanthium sibiricum, etc. for controlling the germination or growth of weeds in useful plants.
  8. 8. The use according to claim 7, wherein the useful plant is maize.

Description

Weeding composition Technical Field The invention belongs to the technical field of pesticide compound weeding, and particularly relates to a weeding composition containing fluoroketosulfenamide or flumetsulam. Background Chemical methods weeding is one of the main means of controlling weeds in agriculture. In recent years, many weeds have been caused to develop resistance due to the large area individual use of some herbicide varieties. Meanwhile, the grass phase is complex when weeds occur, annual and perennial weeds are mixed, the grass, the vine and the shrub are combined, the weeds are uneven in emergence, the seeds and the low-age and high-age weeds are staggered, and therefore the herbicide variety can show defects and limitations on one aspect when being singly used. Fluosulfenamide is an acetolactate synthase (ALS) inhibitor, which inhibits cell division and plant growth by preventing biosynthesis of valine, leucine, isoleucine. The root system and the bud are mainly absorbed, and the herbicide has the herbicidal activity of stem and leaf absorption. Is used for preventing and killing gramineous weeds, nutgrass flatsedge and broadleaf weeds in paddy fields before or after the emergence of the rice seedlings. Can effectively prevent and remove barnyard grass, paspalum distichum, scirpus, annual sedge and the like, and has better inhibition effect on broadleaf weeds such as polygonum caryophyllum, arrowhead, sweet wormwood, euonymus alatus, cyperus rotundus and the like and perennial sedge. The flumetsulam is a triazolopyrimidine sulfonamide herbicide, can be absorbed by root systems and leaves of plants, inhibits the activity of acetolactate synthase in the plants, prevents the synthesis of amino acids and proteins, and causes the plants to stop growing and die. The flumetsulam has wide weed killing spectrum and high activity, can effectively prevent and remove various broadleaf weeds including abutilon, amaranthus retroflexus, cocklebur, dayflower, red knotweed, quinoa and the like, and has weeding activity which is not affected by soil moisture. At present, it is widely used for broad leaf weed control in soybean fields. The herbicide variety containing single active component has the defects of different degrees in weed control, and weeds are easy to generate drug resistance after continuous use, so that the problems of narrow weed control spectrum, environmental pollution and the like are solved. The reasonable compounding of herbicide is an effective method for improving the preventing and killing effect, expanding the weed killing spectrum, delaying the drug resistance of weeds, reducing the environmental pollution, reducing the use cost and reducing the residual herbicide. The applicant has found that the compound of formula (I) and one or more of flumetsulam or flumetsulam are mixed, which has obvious synergistic control effect on various annual or perennial weeds, and also has the advantages of reducing the dosage, reducing the control cost and being safe for crops. The compounding and application of the compound of formula (I) and one or more of flumetsulam or flumetsulam are not reported at present. Disclosure of Invention The invention aims to provide a weeding composition which has reasonable components, low medication cost, obvious synergistic effect, good weeding effect, wide weeding spectrum and safety to crops. It is another object of the present invention to provide a formulation of a herbicidal composition comprising a compound of formula (I) and flumetsulam or flumetsulam. It is a further object of the present invention to provide the use of the herbicidal composition as described above for controlling annual or perennial weeds in peanut fields. In order to solve the problems, the technical scheme provided by the invention is that the weeding composition comprises an active ingredient A and an active ingredient B, wherein the active ingredient A is a compound shown as a formula (I): the active ingredient B is one or more of flumetsulam and flumetsulam; Further, the mass ratio of the active ingredient A to the active ingredient B is 1:20-10:1; Further, the mass ratio of the compound of the formula (I) to the florasulam is 1:10-2:1; Further, the mass ratio of the compound of formula (I) to the florasulam is 1:8-5:1, or any value between the above numerical ranges; further, the mass ratio of the compound of formula (I) to fluoroketosulfenamide is 2.5:5, 2.5:15, 2.5:25, 5:5, 5:15, 5:25, 10:5, 10:15, 10:25; further, the mass ratio of the compound of the formula (I) to flumetsulam is 1:18-2:1; Further, the mass ratio of the compound of formula (I) to flumetsulam is 1:18-2:3, or any value between the above numerical ranges; Further, the mass ratio of the compound of formula (I) to flumetsulam is 2.5:15, 2.5:30, 2.5:45, 5:15, 5:30, 5:45, 10:15, 10:30, 10:45; Further, the mass ratio of the compound of formula (I) to flumetsulam is 2.5:15, 2.5:30, 5:15, 5:30, 5:45, 10:15, 10:30, 10:45; Fur