Clothianidin synergia solubility granula and preparation method thereof

Abstract

The invention relates to a clothianidin synergia solubility granula and a preparation method thereof. The granula is prepared from the following components by weight percent: 1-20 percent of clothianidin, 1-10 percent of a dispersing agent, 1-5 percent of a wetting agent, 2-4 percent of a binder, 1-3 percent of a stabilizer, 1-3 percent of a synergist and the balance of fillings. The preparation method comprises the following steps of: carrying out coarse grinding on the clothianidin, dispersing agent, wetting agent, stabilizer and fillings, stirring and mixing, then carrying out ultrafine grinding to obtain ultrafine powder with the grain size less than 15 micrometers; and adding a binder for pelleting, screening by using a vibrating screen, and drying to obtain a product. The clothianidin synergia solubility granula has the advantages of the solid preparation and liquid pharmaceutical preparations; at the same time, due to the addition of synergist, the clothianidin synergia solubility granula has obviously control efficiency on the common crop injurious insects such as Hemiptera, coleopteran, diptera and certain lepidoptera pests, has the insecticidal efficacy improved by 1.4-1.5 times compared with that of the 50% clothianidin aqueous dispersion granula, and improves the utilization rate of the active constituent clothianidin.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and relates to a clothianidin synergistic soluble granule and a preparation method thereof. Background technique [0002] Clothianidin (English Clothianidin) is a neonicotinoid insecticide, which is a broad-spectrum insecticide with high activity, systemic, contact and stomach toxicity. It is used to control aphids, leafhoppers, thrips, planthoppers and other pests of Hemiptera, Coleoptera, Diptera and some Lepidoptera on rice, vegetables, fruit trees and other crops. It has the advantages of less dosage, low toxicity (mildly toxic preparation), long-lasting effect, no harm to crops, safe use, and no cross-resistance with conventional pesticides. It is another new variety to replace highly toxic organophosphorus pesticides. [0003] Clothianidin insecticides for plant protection are currently registered as 50% clothianidin water dispersible granules. Since water-dispersible granules cannot d...

AI Technical Summary

Problems solved by technology

Since water-dispersible granules cannot disintegrate and dissolve quickly after entering water, they can only be dispersed to form a granular suspension, and the utilization rate of active ingredients is low. Generally, the utilization rate of active ingredients is about 70%.

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