CN-122028796-A - Stable insecticidal composition containing dinotefuran and bifenthrin

Abstract

The present invention relates to synergistic and stable pesticidal compositions for controlling pests damaging crops. More specifically, the composition of the present invention comprises at least one active compound selected from pyrethroid compounds, at least one neonicotinoid compound, an emulsifying system, a co-solvent and a solvent. In addition, the invention also provides a method for preparing the synergistic insecticidal composition.

Inventors

• Shifraji Anand
• Udai Anand
• Salvander Diman
• Gao Lao Paliwol

Assignees

• 帕瑞亚特工业(印度)私人有限公司

Dates

Publication Date

20260512

Application Date

20241018

Priority Date

20231019

Claims (11)

1. 1. An insecticidal composition comprising: Dinotefuran; bifenthrin; Emulsifying system, and A cosolvent.
2. 2. The insecticidal composition of claim 1, wherein the emulsifying system is a blend of calcium salts of alkylbenzene sulfonates, cardanol polyoxyethylene ethers, NP ethoxylates, heavy aromatics & triethylene glycol monoethyl ether, castor oil ethoxylates, and n-butanol.
3. 3. The insecticidal composition of claim 1, wherein the emulsifying system is a blend of calcium salts of alkylbenzene sulfonates, cardanol polyoxyethylene ethers, NP ethoxylates, heavy aromatics & triethylene glycol monoethyl ether.
4. 4. The insecticidal composition of claim 1, wherein Dinotefuran is present at a level of 1 to 40 wt-%; Bifenthrin is present in an amount of 1 to 40% by weight; the emulsifying system being present in an amount of 1 to 30% by weight, and The co-solvent is present in an amount of 1 to 60% by weight.
5. 5. The insecticidal composition of claim 1, wherein the co-solvent is N-methyl-2-pyrrolidone.
6. 6. An insecticidal composition comprising: Dinotefuran; bifenthrin; An emulsifying system; Cosolvent and And (3) a solvent.
7. 7. The insecticidal composition of claim 6, comprising a solvent that is a mixed isomer of 1,2, 4-trimethylbenzene and ethylmethylbenzene (C 9 solvent).
8. 8. The insecticidal composition of any one of claims 1-7, further comprising a carrier, a binder, a disintegrant, a dispersant or dispersing agent, a wetting agent, a pH adjuster, a thickener, a biocide, a preservative, an antifreezing agent, a colorant, an antifoaming agent, a stabilizer, or any combination thereof.
9. 9. A method of preparing an insecticidal composition, the method comprising: a) Weighing a required amount of cosolvent; b) Adding dinotefuran to a co-solvent under agitation to form a mixture; c) Sequentially adding solvent and bifenthrin to the above mixture under continuous stirring, and D) Adding the emulsifying system to the mixture of step c) with stirring to obtain the final insecticidal composition.
10. 10. The method of claim 9, wherein the mixture of step b) is stirred at a speed of 100 RPM for a period of 40-60 minutes.
11. 11. The method of claim 9, further comprising adding a carrier, binder, disintegrant, dispersant or dispersing agent, wetting agent, pH adjuster, thickener, biocide, preservative, antifreeze, colorant, defoamer, stabilizer, or any combination thereof.

Description

Stable insecticidal composition containing dinotefuran and bifenthrin Technical Field The invention relates to the field of agricultural pesticides, in particular to a stable insecticidal composition and a preparation method thereof. Background Control of invertebrate pests is critical to improving the planting efficiency of economically important crops. These pests cause damage not only to growing and harvested crops, but also to the crop yield. Pest management strategies for managing invertebrate pests include the use of a single active ingredient or a mixture of two or more active compounds. However, there remains a significant need for more cost effective and more stable insecticidal compositions. Furthermore, repeated and prolonged administration of a single compound often results in resistance to the active ingredient. In general, such pests will develop cross-resistance to other active ingredients having the same or similar mode of action. Therefore, it is desirable to combine different classes and groups of active ingredients to achieve a broader range of disease control while having both therapeutic and prophylactic effects and maintaining stability. There is an urgent need for a stable, synergistic and environmentally friendly insecticidal composition. The composition should be effective in controlling a variety of pests, thereby preventing the emergence of resistant lines. In addition, it should have broad spectrum activity, minimize the amount of chemicals used in the field, and meet the requirements of sustainable agricultural practices. Another key factor for the composition is its stability under various environmental conditions, including low temperature conditions, under which conventional active ingredients may degrade or perform poorly. This stability ensures that the efficacy of the composition is maintained from production to application, regardless of climate change. The present invention provides a composition that not only resists pest resistance strategies by a wide variety of activity strategies, but also maintains consistent performance over a wide range of temperatures. Object of the invention The main object of the present invention is to provide a pesticidal composition having an improved activity spectrum. It is another object of the present invention to provide an insecticidal composition for resistance management. It is another object of the present invention to provide a stable synergistic insecticidal composition. It is another object of the present invention to provide a synergistic insecticidal composition which is stable, especially under low temperature conditions. It is a further object of the present invention to provide a synergistic insecticidal composition having improved stability to extend shelf life. It is another object of the present invention to provide a method of preparing a synergistic insecticidal composition. It is another object of the present invention to provide a method for controlling pests and diseases in agriculture. Disclosure of Invention The present invention is directed to an insecticidal composition comprising dinotefuran (dinotefuran), bifenthrin (bifenthrin), an emulsifying system and a co-solvent. In another aspect of the invention, the emulsifying system comprises a blend comprising calcium alkyl benzene sulfonate, cardanol polyoxyethylene ether, NP ethoxylate, heavy aromatic & triethylene glycol monoethyl ether, castor oil ethoxylate, and n-butanol. In another aspect of the invention, the emulsifying system comprises a blend comprising a calcium salt of an alkylbenzene sulfonate, cardanol polyoxyethylene ether, NP ethoxylate, heavy aromatics and triethylene glycol monoethyl ether. In another aspect of the invention, the insecticidal composition comprises: 1. To 40 weight percent dinotefuran; 1. to 40 wt.% bifenthrin; 1. Up to 30% by weight of an emulsifying system, and 1. To 60% by weight of a cosolvent. In a preferred embodiment of the invention, the co-solvent is N-methyl-2-pyrrolidone. In another aspect of the invention, the insecticidal composition comprises: Dinotefuran; bifenthrin; An emulsifying system; Cosolvent and And (3) a solvent. In another aspect of the invention, the solvent is a mixed isomer of 1,2, 4-trimethylbenzene and ethylmethylbenzene (C 9 solvent). In a further aspect of the invention, the composition further comprises a carrier, binder, disintegrant, dispersant or dispersing agent, wetting agent, pH adjuster, thickener, biocide, preservative, antifreeze, colorant, defoamer, stabilizer, or any combination thereof. In another aspect of the present invention, there is provided a method of preparing an insecticidal composition, the method comprising: a) Weighing a required amount of cosolvent; b) Adding dinotefuran to a co-solvent under agitation to form a mixture; c) Sequentially adding solvent and bifenthrin to the above mixture under continuous stirring, and D) Adding an emulsifying system to the mixture of step c