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Sulfonamides pesticide composition

A technology of pesticide composition and sulfonamides, applied in biocides, pest control, animal repellents, etc., can solve the problems of unsustainable life, blocked folic acid synthesis of microorganisms, etc., and prevent the growth and reproduction of bacteria , leaf abscission, sex expression and nutrient metabolism regulation improvement, delaying the effect of occurrence and reproduction

Inactive Publication Date: 2013-07-10
朱国亮
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As a derivative of p-aminobenzenesulfonamide, sulfonamides are similar to the substrate p-aminobenzoic acid in structure, molecular size and charge distribution, so they can replace p-aminobenzoic acid in the synthesis of dihydrofolic acid and block the synthesis of dihydrofolic acid. Synthesis, which leads to the blockage of folic acid synthesis by microorganisms, and life cannot continue

Method used

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Examples

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Embodiment

[0008] Example: Weigh 1 kg of p-aminobenzoic acid (A) powder and 4 kg of p-aminobenzenesulfonamide (B) powder, and mix them uniformly at a mass ratio of A and B of 1:4 for use. Pour p-aminobenzoic acid (A), p-aminobenzenesulfonamide (B) and sodium bicarbonate into the reaction pot successively, heat while stirring, and add water to dissolve when the temperature in the reaction pot rises to 60°C. Add sodium sulfite slowly after dissolving, stir fully and stop heating. When the temperature in the reaction pot drops to about 40°C, add dilute sulfuric acid dropwise while stirring until clear liquid appears in the upper layer or there is only a small amount of suspended matter in the mixed liquid. After that, Take out and weigh, and calculate the percentage content of the effective components of the pesticide composition in proportion.

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PUM

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Abstract

The invention provides a sulfonamides pesticide composition. The effective component of the pesticide composition is sulfonamides, which comprises para aminobenzoic acid (A) and sulfanilamide (B), the mass ratio of A to B is 1:2-1:5. The pesticide composition is a water solution or a microemulsion, and is prepared by dissolving A and B into a sodium hydroxide solution or potassium hydroxide solution or calcium hydroxide solution and neutralizing excessive alkali in the solution with inorganic acid. The sulfonamides pesticide composition can achieve the purposes of sterilizing, killing pests and preventing pests in the processes of growing, blooming and bearing fruits of plants, has good control efficiency for common plant disease and insect pests (leaf spot, apple rot and the like) in agricultural production when being used reasonably, has a strong comprehensive cure effect for various pests attack to fruits of the fruit trees in fructescence, and especially has a strong effect for improving the percentage of fertile fruits of the fruit trees, improving the fruit structure, overcoming the defect of biennial fruiting, and the like.

Description

technical field [0001] The invention relates to a pesticide composition, in particular to a sulfonamide pesticide composition. Background technique [0002] Under the catalysis of dihydrofolate synthase, p-aminobenzoic acid synthesizes dihydrofolic acid with dihydropteridine pyrophosphate and glutamic acid or dihydropteridine pyrophosphate and p-aminobenzoyl glutamic acid. Dihydrofolate is then reduced to tetrahydrofolate under the catalysis of dihydrofolate reductase, and tetrahydrofolate is further synthesized to obtain coenzyme F, which provides a carbon unit for bacteria to synthesize DNA bases. [0003] As a derivative of p-aminobenzenesulfonamide, sulfonamides are similar to the substrate p-aminobenzoic acid in structure, molecular size and charge distribution, so they can replace p-aminobenzoic acid in the synthesis of dihydrofolic acid and block the synthesis of dihydrofolic acid. Synthesis, which causes the folic acid synthesis of microorganisms to be blocked, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N41/06A01P3/00A01P1/00A01P7/04A01P21/00A01N37/44
Inventor 朱国亮
Owner 朱国亮
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