Sustained and controlled release granule applied to corn core leaves and used for preventing and controlling spodoptera frugiperda

Abstract

The invention discloses a sustained and controlled release granule applied to corn core leaves and used for preventing and controlling spodoptera frugiperda. The granule is composed of chlorantraniliprole, monosultap, a carrier and a sustained and controlled release component, wherein the carrier is one or two of inert soil particles such as attapulgite clay, bentonite, sepiolite, zeolite, kaolin and the like, and the sustained-release material is one or more of a sulfur film, modified vegetable oil, epoxy resin and polyamide resin. According to the invention, during production, chlorantraniliprole is processed into powder to be wrapped on the surfaces of carrier particles, the surfaces of the particles are wrapped with a sustained and controlled release layer, monosultap is processed into powder to be wrapped with a layer, and finally the particles are wrapped with a sustained and controlled release layer; and the granule can be directly applied to corn core leaves to prevent and control the harm of corn spodoptera frugiperda in one season, so that the pressure of preventing and controlling corn spodoptera frugiperda in China at present is effectively relieved.

Description

technical field [0001] The invention relates to the field of plant protection in agricultural production, and relates to a slow and controlled release granule for preventing Spodoptera frugiperda, which is safe and convenient to use. Background technique [0002] Fall armyworm, native to tropical and subtropical regions of America, has developed into a major global agricultural pest. In recent years, it has successively invaded many countries and regions in Africa and Asia. Since it invaded my country in mid-December 2018, it has spread to most provinces (municipalities, autonomous regions) in my country in more than two years, posing a serious threat to the production of important crops such as corn, wheat, sorghum, and sugar cane. Spodoptera frugiperda was also named and paid attention to in the No. 1 document of the central government. [0003] Chlorantraniliprole is a new type of amide systemic insecticide. It has stomach toxicity and contact action. It is a broad-spec...

AI Technical Summary

Problems solved by technology

[0005] For the control of Spodoptera frugiperda, spraying control is still the main method in my country at present, but farmers often delay the best spraying time due to various reasons or weather reasons such as rain, resulting in irreparable losses

The patent "A Pesticide Granule for Controlling Fall Armyworm" (application number: 201910644051.0) and the patent "A Method of Using Seed Treatment to Control Fall Armyworm" (application number: 201910727740.8) carried out seed dressing and seed treatment However, the agents for seed dressing and seed treatment need to have better systemic properties, and the effect is poor when the weather is dry and in the late stage of crop growth

The product in the patent "A Pesticide Composition and Using Method for Controlling Spodoptera frugiperda" (Application No.: 201911101897.6) can be mixed with fine soil and then sprinkled, but soil mixing is not only cumbersome but often causes phytotoxicity and The control effect is not good, and the product of the present invention found in the field test that the heart-throwing treatment can reduce the amount of active ingredients of pesticides by more than 50% compared with conventional spraying treatment, and adopt "a kind of chemical composition and use method for preventing and treating Spodoptera frugiperda" The produced product may be mixed with a large amount of soil due to the low concentration, or due to the large soil adsorption area, a large amount of pesticides are adsorbed by the soil, resulting in low pesticide utilization

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