A herbicidal composition containing indaziflam and its application

Abstract

The present invention discloses a herbicidal composition containing indaziflam and its application. The active ingredients are indaziflam and sulfentrazone, and the weight ratio of indaziflam to sulfentrazone is 6-1:1-6. The herbicidal composition of the present invention effectively complements the quick-acting property and long-lasting property, avoids the problem of rapid occurrence of weed resistance caused by the use of a single herbicide for control, delays the occurrence of weed resistance, and extends the service life of the herbicide. The actual herbicidal effect of the binary composition of the present invention is significantly better than the theoretical sum of the individual use, and has the effects of synergy, efficiency increase, reduction of the dosage, good selectivity, outstanding control effect on resistant weeds, and safety to crops. The use of a low dose of indaziflam can significantly reduce the dosage of sulfentrazone, reduce the use cost, is of great significance to the ecological environment protection, also improves the safety to crops, and has a very practical and wide application prospect.

Description

Technical Field

[0001] The present invention relates to the technical field of pesticides, and particularly relates to a herbicidal composition containing indaziflam and its application. Background Art

[0002] Chemical weed control is one of the main means in agriculture to control weeds. In recent years, due to the large-scale single use of some herbicide varieties, many weeds have developed resistance. At the same time, due to the complex weed community when weeds occur, with multiple types of weeds such as gramineous weeds, broad-leaved weeds, and sedges growing together, a single herbicide variety cannot solve farmland weeds and will show certain defects and limitations in some aspects. For example, in non-agricultural fields such as lawns, ornamental lawns, ornamental plants, railways, highways, airports, residential areas, ditches, industrial areas, military bases, municipal and government sites, around farm buildings, commercial areas, coniferous forests, etc., as well as in economic crops such as corn, sorghum, soybeans, citrus, grapes, fruit trees, nuts, and sugarcane fields, the types of weeds are numerous, with high density and large growth volume. When using a single agent for control, the weed damage cannot be effectively suppressed and reduced, and it is often difficult to control their spreading growth.

[0003] Indaziflam is a triazine herbicide developed by Bayer, with the development code BCS-AA10717. Its IUPAC name: N-[(1R,2S)-2,3-dihydro-2,6-dimethyl-1H-inden-1-yl]-6-[(1RS)-1-fluoroethyl]-1,3,5-triazine-2,4-diamine; CAS registry number: 950782-86-2; relative molecular mass 301.37; molecular formula C16H20FN5. The structural formula is as follows:

[0004]

[0005] Indaziflam is a cellulose biosynthesis inhibitor (CBI). After soil application, it is absorbed through the hypocotyl of plants, inhibiting the growth of new roots and leaves, causing chlorosis in the stems and leaves, and ultimately leading to the death of weeds. Indaziflam is highly effective, broad-spectrum, and has a long residual effect, with a control effect on gramineous weeds and broad-leaved weeds lasting up to 6 months, and it is safe for crops.

[0006] In the field of herbicides, in order to expand the weed control spectrum, usually two or more herbicides are compounded. For example, the Chinese patent document "CN110035660B - Herbicidal combination containing flucetosulfuron and indaziflam" discloses the compounding of indaziflam and flucetosulfuron for use in controlling weeds in sugarcane fields.

[0007] The chemical name of sulfentrazone is N-(2,4-dichloro-5-(4-difluoromethyl-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazol-1-yl)phenyl)methanesulfonamide, and its CAS registry number is 122836-35-5. The structural formula is as follows:

[0008]

[0009] Sulfentrazone is a protoporphyrinogen oxidase inhibitor. By inhibiting protoporphyrinogen oxidase, it causes an excessive amount of protoporphyrin IX to be produced in plant cells. The latter is a photosensitizer, which leads to the generation of reactive oxygen species in the cells, and ultimately causes the rupture of cell membranes, vacuole membranes, etc., the leakage of intracellular contents, and withering and death. Sulfentrazone is suitable for controlling annual broadleaf weeds, gramineous weeds, and cyperaceous weeds such as morning glory, redroot amaranth, lamb's quarters, thorn apple, crabgrass, green foxtail, cocklebur, goosegrass, nutsedge, and nutgrass flatsedge in fields of corn, sorghum, soybean, peanut, etc. Summary of the Invention

[0010] The technical problem to be solved by the present invention is to provide a herbicidal composition containing indaziflam and sulfentrazone and its application, which has good control effects on gramineous weeds, broadleaf weeds, and cyperaceous weeds in non-agricultural fields such as lawns, ornamental lawns, ornamental plants, railways, highways, airports, residential areas, ditches, industrial areas, military bases, municipal and government sites, around farm buildings, commercial areas, coniferous forests, etc., as well as in economic crops such as corn, sorghum, soybean, citrus, grape, fruit trees, nuts, and sugarcane fields.

[0011] The technical solution for achieving the first object of the present invention is a herbicidal composition containing indaziflam, and the active ingredients are indaziflam and sulfentrazone.

[0012] Preferably, the weight ratio of indaziflam to sulfentrazone is 6 to 1:1 to 6.

[0013] More preferably, the weight ratio of indaziflam to sulfentrazone is 1:1 to 6.

[0014] More preferably, the weight ratio of indaziflam to sulfentrazone is 1:3 to 6.

[0015] More preferably, the weight ratio of indaziflam to sulfentrazone is 1:6.

[0016] Among them, the active ingredients indaziflam and sulfentrazone account for 10% to 70% of the total weight of the herbicidal composition.

[0017] The dosage form of the herbicidal composition is a suspension concentrate, water dispersible granule, wettable powder, dispersible oil suspension, or microcapsule suspension.

[0018] The technical solution for achieving the second object of the present invention is the application of the above herbicidal composition containing indaziflam in controlling gramineous weeds, broadleaf weeds and cyperaceae weeds in non-agricultural lawns, ornamental lawns, ornamental plants, railways, highways, airports, residential areas, ditches, industrial areas, military bases, municipal and government sites, around farm buildings, commercial areas, coniferous forests, and economic crops such as corn, sorghum, soybean, citrus, grape, fruit trees, nuts, and sugarcane fields.

[0019] The herbicidal composition is used before crop planting or before emergence after sowing.

[0020] The weeds include Setaria viridis, Beckmannia syzigachne, Lolium multiflorum, Cyperus rotundus, Pharbitis nil, Chenopodium album, Sonchus oleraceus, Eleusine indica, Bidens pilosa and Xanthium sibiricum.

[0021] The present invention has positive effects:

[0022] (1) After indaziflam and sulfentrazone in the herbicidal composition of the present invention are compounded, the weed control spectra are complementary. It has good control effects on gramineous weeds, broadleaf weeds and cyperaceae weeds in non-agricultural fields such as lawns, ornamental lawns, ornamental plants, railways, highways, airports, residential areas, ditches, industrial areas, military bases, municipal and government sites, around farm buildings, commercial areas, coniferous forests, and economic crops such as corn, sorghum, soybean, citrus, grape, fruit trees, nuts, and sugarcane fields. It can effectively control some difficult-to-control weeds and resistant weeds, such as malignant weeds like Cyperus rotundus, and is safe for sugarcane and the following crops.

[0023] (2) The quick-acting property and long-lasting property of the herbicidal composition of the present invention are effectively complementary, avoiding the problem of rapid occurrence of weed resistance caused by the use of a single herbicide, delaying the occurrence of weed resistance, and extending the service life of the herbicide.

[0024] (3) The actual weeding effect of the binary composition of the present invention is significantly better than the theoretical sum of the individual use. It has the effects of synergy, efficiency enhancement, reduction of dosage, good selectivity, outstanding control effect on resistant weeds, and safety for crops. The use of a low dose of indaziflam can significantly reduce the dosage of sulfentrazone, reduce the use cost, is of great significance to ecological environment protection, and also improves the safety for crops, having a very practical and wide application prospect. Detailed implementation mode

[0025] Introduced below are some of the multiple possible embodiments of the present invention, which are intended to provide a basic understanding of the present invention, and are not intended to confirm the key or decisive elements of the present invention or to limit the scope of protection. It is easy to understand that according to the technical solution of the present invention, without changing the essential spirit of the present invention, a person of ordinary skill in the art can propose other mutually replaceable implementations. Therefore, the following specific embodiments are only exemplary descriptions of the technical solution of the present invention, and should not be regarded as the whole of the present invention or as a limitation or restriction to the technical solution of the present invention.

[0026] (Example 1, 42% suspension)

[0027] 42% indoxazine fluazifop-sulfuron suspension: indoxazine fluazifop 6%, sulfuron 36%, wetting agent phenethylphenol polyoxyethylene ether 5%, dispersant polycarboxylate 3%, antifreeze agent propylene glycol 5%, rheological agent magnesium aluminum silicate 1%, thickener xanthan gum 0.3%, sodium benzoate 0.3%, deionized water is supplemented to 100%, and the above and following embodiments are all mass percentages.

[0028] Preparation method: the above active ingredients and wetting agent, dispersant, antifreeze agent, rheological agent and water are put into a stirring tank, and after being fully stirred, the materials are pumped into a sand mill for full grinding. After the grinding is completed, the materials are pumped into a high-speed shearing machine, and after adding a thickener and sodium benzoate, high-speed shearing is performed. After the shearing is completed, the suspension is obtained.

[0029] (Example 2, 70% water dispersible granules)

[0030] 70% indoxazolidinone / sulfentrazone water dispersible granules: 10% indoxazolidinone, 60% sulfentrazone, 4% polycarboxylate dispersant, 2% sodium lauryl sulfate, 6% dispersant naphthalenesulfonate D425, 4% disintegrant ammonium sulfate, and filler kaolin to make up to 100%.

[0031] Preparation method: After all the above materials are mixed evenly, they are crushed by a jet mill and mixed evenly again. Then, a certain amount of water is added to knead the mixture, extruded into granules, dried and sieved to obtain water-dispersible granules.

[0032] (Example 3, 70% wettable powder)

[0033] 70% indoxazine fluazifop-sulfuron wettable powder: 10% indoxazine fluazifop-sulfuron, 60% sulfuron, 4% wetting agent sodium lauryl sulfate, 6% dispersant sodium naphthalenesulfonate formaldehyde condensate, 5% filler diatomaceous earth, and kaolin is made up to 100%.

[0034] Preparation method: The active ingredient and the auxiliary agents are mixed evenly, put into a mechanical crusher for initial crushing, then crushed by a jet mill, and then mixed evenly to obtain a wettable powder.

[0035] (Example 4, 14% dispersible oil suspension)

[0036] 14% indaziflam + sulfentrazone dispersible oil suspension: indaziflam 2%, sulfentrazone 12%, phosphate dispersant 3%, emulsifier alkylbenzene polyoxyethylene ether 7%, calcium dodecylbenzenesulfonate 8%, fumed silica 2%, thickener organobentonite 2%, dispersing medium methyl oleate q.s. to 100%.

[0037] Preparation method: Put the active ingredients, emulsifier, dispersant, calcium dodecylbenzenesulfonate, fumed silica and dispersing medium into a stirring kettle, stir well, then pump into a high-speed shearing machine for high-speed shearing, and then pump to a sand mill for sufficient sanding. After the sanding is qualified, add the thickener and stir evenly to obtain the dispersible oil suspension.

[0038] (Example 5, 14% microcapsule suspension)

[0039] 14% indaziflam + sulfentrazone microcapsule suspension: indaziflam 2%, sulfentrazone 12%, solvent cyclohexanone 10%, solvent dibutyl phthalate 6%, oily capsule wall 1,6 - hexamethylene diisocyanate 5%, aqueous capsule wall ethylenediamine 3%, emulsifier alkylphenol formaldehyde resin polyoxyethylene ether 6%, dispersant EO - PO block polyether 7%, thickener magnesium silicate aluminate 0.3%, dispersing medium water q.s. to 100%.

[0040] Preparation method: After fully dissolving the active ingredients with the solvent, add the oily capsule wall and stir well to form an oil phase; pour it into the water phase mixed with the emulsifier and dispersant, carry out high-speed shearing, then add the aqueous capsule wall, stir evenly, then heat up to 70°C and keep warm for curing for 2 hours to make microcapsules, and finally add the thickener and stir evenly to obtain the microcapsule suspension.

[0041] (Test Example 1, Indoor Biological Activity Test)

[0042] Test agents: 50% sulfentrazone suspension and indaziflam technical.

[0043] Test targets: Select several representative weeds in Gramineae weeds, broad-leaved weeds and Cyperaceae weeds, such as Setaria viridis, Beckmannia syzigachne, Lolium multiflorum, Cyperus rotundus, Pharbitis nil, Chenopodium album, Sonchus oleraceus, Eleusine indica, Bidens pilosa, Xanthium sibiricum as test weeds. Cyperus rotundus is a perennial weed, and its underground rhizomes are dug from the field for reproduction; the other several weeds are annual weeds, and their seeds are collected from the field for reproduction.

[0044] Formulation design of agents: The 50% sulfentrazone suspension concentrate was prepared into solutions with dosages of 0.2, 0.25, 0.33, 0.5, 0.67, 1, 2, 4, 6, 8, 10, 12, 16, 20, 24 g / acre of active ingredient for standby; the indaziflam technical was prepared into a solution with a dosage of 2 g / acre of active ingredient for standby; the mixture of indaziflam and sulfentrazone was prepared into solutions with dosages of 2 + 0.2 (10:1), 2 + 0.25 (8:1), 2 + 0.33 (6:1), 2 + 0.5 (4:1), 2 + 0.67 (3:1), 2 + 1 (2:1), 2 + 2 (1:1), 2 + 4 (1:2), 2 + 6 (1:3), 2 + 8 (1:4), 2 + 10 (1:5), 2 + 12 (1:6), 2 + 16 (1:8), 2 + 20 (1:10), 2 + 24 (1:12) g / acre for standby.

[0045] Test method:

[0046] For weeds propagated by seeds, a certain amount of soil was filled in plastic pots with a height of 6 cm and a diameter of 9 cm. 15 - 20 test target weed seeds were sown in the plastic pots. After covering with 0.5 - 1 cm thick fine soil, soil spraying treatment was carried out 24 hours later. 1 mL of liquid medicine was sprayed on each pot, and each treatment was repeated 4 times. A treatment without spraying the agent was set as the control. After treatment, the test materials were placed in the greenhouse for cultivation. The growth of the target weeds was observed regularly. After 20 days, the damage symptoms and growth inhibition of the target were visually observed, and the fresh weight of the above-ground part was weighed. The virulence effect of the agent on the target weeds was evaluated by the inhibition rate of the target fresh weight.

[0047] For weeds propagated by rhizomes, a certain amount of soil was filled in plastic pots with a height of 6 cm and a diameter of 9 cm. 10 segments of the collected underground rhizomes (such as the underground rhizomes of Cyperus rotundus) were planted in the plastic pots. After covering with 0.5 - 1 cm thick fine soil. Soil spraying treatment was carried out 24 hours later. 1 mL of liquid medicine was sprayed on each pot, and each treatment was repeated 4 times. A treatment without spraying the agent was set as the control. After treatment, the test materials were placed in the greenhouse for cultivation. The growth of the target weeds was observed regularly. After 20 days, the damage symptoms and growth inhibition of the target were visually observed, and the fresh weight of the above-ground part was weighed. The virulence effect of the agent on the target weeds was evaluated by the inhibition rate of the target fresh weight.

[0048] Investigation method: 20 days after the test treatment, the damage symptoms and growth inhibition of the target were visually observed, and the fresh weight of the above-ground part was weighed, and the inhibition rate of the fresh weight (%) was calculated.

[0049]

[0050] Evaluation method of joint action: According to the Gowing method (NY / T 1155.7 - 2006) to evaluate the combination mode of herbicides, the formula is as follows:

[0051] E0﹦X﹢Y–XY / 100.

[0052] Wherein, X is the fresh weight inhibition rate of target weeds when sulfentrazone is used alone at a certain dose; Y is the fresh weight inhibition rate of target weeds when indoxazolidinone is used alone at a certain dose; E0 is the theoretical value of the fresh weight inhibition rate of target weeds when sulfentrazone and indoxazolidinone are mixed; E is the measured value of the fresh weight inhibition rate of target weeds when sulfentrazone and indoxazolidinone are mixed.

[0053] Evaluation criteria: When E–E0>10%, it indicates a synergistic effect; when –10%≤E–E0≤10%, it indicates an additive effect; when E–E0<–10%, it indicates an antagonistic effect.

[0054] Table 1. Indoor toxicity test of each pesticide treatment on Setaria viridis.

[0055]

[0056]

[0057] It can be seen from Table 1 that when indoxazolidinone and sulfentrazone are compounded, they have an additive or synergistic effect on Setaria viridis within the weight ratio range of 10 to 1:1 to 12, and a synergistic effect within the weight ratio range of 6 to 1:1 to 6, among which the synergistic effect is more obvious within the weight ratio range of 1:3 to 1:6.

[0058] Table 2. Indoor toxicity test of each pesticide treatment on Psoralea corylifolia.

[0059]

[0060]

[0061] It can be seen from Table 2 that when indoxazolidinone and sulfentrazone are compounded, they have an additive or synergistic effect on sedge grass in the weight ratio range of 10 to 1:1 to 12, and a synergistic effect in the weight ratio range of 6 to 1:1 to 6, among which the synergistic effect is more obvious in the weight ratio range of 1:1 to 1:6.

[0062] Table 3. Indoor toxicity test of each agent treatment on multiflora ryegrass

[0063]

[0064]

[0065] It can be seen from Table 3 that when indoxazolidinone and sulfentrazone are compounded, they have an additive or synergistic effect on multiflora ryegrass in the weight ratio range of 10 to 1:1 to 12, and a synergistic effect in the weight ratio range of 6 to 1:1 to 6, among which the synergistic effect is more obvious in the weight ratio range of 1:3 to 1:6.

[0066] Table 4. Indoor Toxicity Determination of Each Medicament Treatment on Cyperus rotundus

[0067]

[0068]

[0069] As can be seen from Table 4, when indaziflam is compounded with sulfentrazone, it has an additive or synergistic effect on Cyperus rotundus within the weight ratio range of 10 - 1:1 - 12, and has a synergistic effect within the weight ratio range of 6 - 1:1 - 6. Among them, the synergistic effect is more obvious within the weight ratio range of 1:3 - 1:6.

[0070] Table 5. Indoor Toxicity Determination of Each Medicament Treatment on Pharbitis nil

[0071]

[0072]

[0073] As can be seen from Table 5, when indaziflam is compounded with sulfentrazone, it has an additive or synergistic effect on Pharbitis nil within the weight ratio range of 10 - 1:1 - 12, and has a synergistic effect within the weight ratio range of 6 - 1:1 - 6. Among them, the synergistic effect is the most obvious at the weight ratio of 1:6.

[0074] Table 6. Indoor Toxicity Determination of Each Medicament Treatment on Chenopodium album

[0075]

[0076]

[0077] As can be seen from Table 6, when indaziflam is compounded with sulfentrazone, it has an additive or synergistic effect on Chenopodium album within the weight ratio range of 10 - 1:1 - 12, and has a synergistic effect within the weight ratio range of 6 - 1:1 - 6. Among them, the synergistic effect is more obvious within the weight ratio range of 1:4 - 1:6.

[0078] Table 7. Indoor Toxicity Determination of Each Medicament Treatment on Sonchus oleraceus

[0079]

[0080]

[0081] As can be seen from Table 7, for the combination of indaziflam and sulfentrazone in the examples, it has an additive or synergistic effect on Sonchus oleraceus within the weight ratio range of 10 - 1:1 - 12, and has a synergistic effect within the weight ratio range of 6 - 1:1 - 6. Among them, the synergistic effect is more obvious within the weight ratio range of 1:3 - 1:6.

[0082] Table 8. Indoor Toxicity Test of Each Agent Treatment on Goosegrass

[0083]

[0084]

[0085] As can be seen from Table 8, the combination of indaziflam and sulfentrazone in the weight ratio range of 10 - 1:1 - 12 has an additive or synergistic effect on goosegrass, and has a synergistic effect in the weight ratio range of 6 - 1:1 - 6, among which the synergistic effect is more obvious in the weight ratio range of 1:3 - 1:6.

[0086] Table 9. Indoor Toxicity Test of Each Agent Treatment on Bidens pilosa

[0087]

[0088]

[0089] As can be seen from Table 9, the combination of indaziflam and sulfentrazone in the weight ratio range of 10 - 1:1 - 12 has an additive or synergistic effect on Bidens pilosa, and has a synergistic effect in the weight ratio range of 6 - 1:1 - 6, among which the synergistic effect is more obvious in the weight ratio range of 1:3 - 1:6.

[0090] Table 10. Indoor Toxicity Test of Each Agent Treatment on Xanthium sibiricum

[0091]

[0092]

[0093] As can be seen from Table 10, the combination of indaziflam and sulfentrazone in the weight ratio range of 10 - 1:1 - 12 has an additive or synergistic effect on Xanthium sibiricum, and has a synergistic effect in the weight ratio range of 6 - 1:1 - 6, among which the synergistic effect is more obvious in the weight ratio range of 1:3 - 1:6.

[0094] In summary, the mixed combination of indaziflam and sulfentrazone has an additive or synergistic effect on the control of weeds such as Setaria viridis, Beckmannia syzigachne, Lolium multiflorum, Cyperus rotundus, Pharbitis nil, Chenopodium album, Sonchus oleraceus, goosegrass, Bidens pilosa, and Xanthium sibiricum in the weight ratio range of 10 - 1:1 - 12, and has a synergistic effect in the weight ratio range of 6 - 1:1 - 6, among which the synergistic effect is the most obvious when the weight ratio is 1:6.

[0095] In addition, the mixed combination of low-dose indaziflam and sulfentrazone can significantly reduce the dosage of sulfentrazone while increasing the weed inhibition rate.

[0096] (Test Example 2. Field Efficacy Test)

[0097] Test agents: 5 binary compound combinations in Examples 1 to 5.

[0098] Control agents: indaziflam technical, 50% sulfentrazone suspension concentrate.

[0099] Test crops: sugarcane.

[0100] Weeds to be controlled: Pharbitis nil, Chenopodium album, Sonchus oleraceus, Beckmannia syzigachne, Bidens pilosa, Xanthium sibiricum, Setaria viridis, Eleusine indica, Lolium multiflorum

[0101] etc., annual broadleaf weeds, perennial weeds of Gramineae and Cyperaceae such as Cyperus rotundus.

[0102] Test method: According to the area of the test plot, accurately weigh each group of agents. After diluting with water at a rate of 30 L / mu, use a knapsack sprayer to evenly spray the soil before emergence of sugarcane seedlings. During spraying, pay attention to evenly spraying the liquid medicine into the test plot to prevent over-spraying and missed-spraying.

[0103] Observe the emergence and growth of crops within 1 - 15 days after application to investigate whether there is phytotoxicity to the crops.

[0104] Observe the death of weeds 20 days and 40 days after application, count the number of weed plants and fresh weight, and calculate the control efficacy of plant number and fresh weight.

[0105] The formulations of the application examples of the present invention are shown in Table 11 (20 days after application) and Table 12 (40 days after application).

[0106] Table 11. Results of field efficacy test (20 days after application)

[0107]

[0108] Table 12. Results of field efficacy test (40 days after application)

[0109]

[0110] The results of the field test show that after mixing indaziflam and sulfentrazone, it has obvious effects of expanding the weed control spectrum, improving the herbicidal activity, and enhancing the herbicidal effect, showing a significant synergistic effect. The use of low-dose indaziflam makes up for the deficiency of high dosage of sulfentrazone.

[0111] Observation after 7 days, 10 days, and 15 days after application showed that there were no adverse phenomena such as low emergence rate, yellow leaves, albinism, contact spots, growth cessation, and dead seedlings in the sugarcane emergence and growth in the treatment areas of each example combination and the control agent treatment area. The growth was normal, consistent with the sugarcane growth in the blank control area, and there was no significant difference, indicating that each example combination is safe for sugarcane growth at this dosage.

Claims

1. A herbicidal composition containing indaziflam, characterized in that: The active ingredients are indaziflam and sulfentrazone, and the weight ratio of indaziflam to sulfentrazone is 6 - 1:1 - 6.

2. The herbicidal composition containing indaziflam according to claim 1, characterized in that: The weight ratio of indaziflam to sulfentrazone is 1:1 - 6.

3. The herbicidal composition containing indaziflam according to claim 2, characterized in that: The weight ratio of indaziflam to sulfentrazone is 1:3 - 6.

4. The herbicidal composition containing indaziflam according to claim 3, characterized in that: The weight ratio of indaziflam to sulfentrazone is 1:

6.

5. The herbicidal composition containing indaziflam according to any one of claims 1 to 4, characterized in that: The active ingredients indaziflam and sulfentrazone account for 10% - 70% of the total weight of the herbicidal composition.

6. The herbicidal composition containing indaziflam according to any one of claims 1 to 4, characterized in that: The dosage form of the herbicidal composition is suspension concentrate, water dispersible granule, wettable powder, dispersible oil suspension or microcapsule suspension.

7. Use of the herbicidal composition containing indaziflam according to claim 1 in controlling Gramineae weeds, broadleaf weeds and Cyperaceae weeds, wherein the weeds are Setaria viridis, Beckmannia syzigachne, Lolium multiflorum, Cyperus rotundus, Pharbitis nil, Chenopodium album, Sonchus oleraceus, Eleusine indica, Bidens pilosa and Xanthium sibiricum.

8. Use of the herbicidal composition containing indaziflam according to claim 7, characterized in that: The herbicidal composition is used before crop planting or before emergence after sowing.

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