Insecticidal composition containing fluopyram

Abstract

The invention discloses an insecticidal composition containing fluopyram, and relates to the field of pesticides. A preparation method comprises the following steps: adding maleic anhydride, polyethylene glycol and a catalyst into a four-neck flask to obtain an intermediate A, and adding the intermediate A, methacrylic acid and furfuryl hydrogen methacrylate into a conical flask to obtain a monomer solution; adding sodium hydrogen sulfite and a solvent methanol into a four-neck flask, and dropwise adding a monomer solution and an ammonium persulfate solution to obtain the dispersing aid; therefore, the problems that pesticides are poor in dispersity in the using process and cannot be easily adsorbed to leaf surfaces and root systems of plants after being sprayed, and the pesticide effect is reduced are solved. The hydrophobic property of the main chain of the molecule, the hydrophilic property of the side chain and the existence of the side chain play a three-dimensional stabilizing role to prevent irregular agglomeration, so the dispersion of pesticide particles is facilitated, sedimentation and flocculation are not liable to occur, the viscosity of the dispersion system is obviously reduced, and the aim of improving the dispersity is fulfilled.

Description

technical field [0001] The invention relates to the field of pesticides, in particular to an insecticidal composition containing fluopyram. Background technique [0002] Nematodes are a class of low-level invertebrates with small bodies and almost transparent body walls. The nematodes and their main organs can only be seen clearly under a microscope. They have a wide range of distribution, various types, and strong environmental adaptability. Plant nematodes can Infects the underground parts of plants such as roots, rhizomes, tubers and bulbs, causing significant external lesions in these parts, severely hindering the growth and development of the aboveground parts of plants, showing symptoms such as yellowing, short plant, and in severe cases, causing dryness and death. The parasitism of plant nematodes is easy to cause complex infection of bacteria or fungi, which not only reduces the yield of crops, but also reduces the quality of agricultural products, causing serious ec...

AI Technical Summary

Problems solved by technology

[0006] (1) Add maleic anhydride, polyethylene glycol and catalyst to obtain intermediate A in a four-necked flask, and intermediate A, methacrylic acid, hydrogen furfuryl methacrylate are added in the Erlenmeyer flask to obtain monomer solution, Add sodium bisulfite and solvent methanol into a four-necked flask, drop monomer solution and ammonium persulfate solution to obtain the dispersing aid, and solve the problem of pesticides encountered during use by adding the dispersing aid to the pesticide. The problem of poor dispersion;

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