Beauveryia bassiana pesticide suspoemulsion and preparation method thereof

Abstract

The invention relates to a beauveryia bassiana pesticide suspoemulsion and a preparation method thereof. The invention is characterized in that the beauveryia bassiana pesticide suspoemulsion includes the following materials in part by weight: 20 to 80 parts of beauveryia bassiana spore powder; 10 to 60 parts of emulsified dispersant; 10 to 30 parts of thickening agent; 10 to 30 parts of suspension stabilizer; 10 to 30 parts of spreader; 10 to 60 parts of sugar; and 1 to 10 parts of peptone. The activity of spores is increased, the variety of chemical aids in use is small, moreover, the suspoemulsion can be easily dissolved in water and degraded so that the environmental pollution can be reduced, the adhesion rate of the spores on the body surfaces of inserts is increased, the infection process of the suspoemulsion is quicker than the infection process of raw powder, the requirement of the formulation production process is low, the method is quite simple, and the application in fields is simple. After being diluted by water, the suspoemulsion is in the form of milky, translucent liquid, emulsification is complete, no sediments exist, the stability is high, and the suspoemulsion does not have foreign odor. The dilution factor is high, the packaging and transportation cost is saved, and the transportation of the pesticide is safe. The invention promotes the popularization and commercialization of bassiana and the development of the rural ecological agriculture in China.

Description

technical field [0001] The invention relates to a beauveria bassiana insecticide suspoemulsion and a preparation method thereof, which is used for preventing and controlling agricultural pests and is an insecticide against corn borer. Background technique [0002] Corn is the second largest grain crop in my country, with an annual output of 300 billion catties. It can be used for food, and can also be used as feed and industrial raw materials to produce industrial alcohol and shochu. The corn borer is the main pest in corn production. It not only eats the leaves of corn, bores into the main stem or ear of corn, reduces photosynthesis, affects nutrient transportation, but also produces various secondary diseases, resulting in reduced yield and quality of corn. The yield loss of corn is 7%-15%, more than 50% in severe years, or even out of production, causing huge economic losses to my country's grain production. Chemical pesticides have always played a major role in the contr...

AI Technical Summary

Problems solved by technology

Beauveria bassiana has the advantages of strong pathogenicity, wide insecticidal range, and environmental friendliness, but there are still disadvantages such as single dosage form, low labor efficiency, slow insecticidal speed, and low insecticidal efficiency in the control

At present, the most successful promotion model of Beauveria bassiana in my country is the control of corn borer and pine caterpillar, but they are all promoted by the government. Bacteria granules are also used, but the labor efficiency is low and has gradually disappeared

The main reasons for the difficulty in the promotion and commercialization of Beauveria bassiana in my country are the degradation of the virulence of the strain, the instability of spore production and the single dosage form, among which the single dosage form is the main problem

For a long time, the development of new dosage forms of Beauveria bassiana has been a difficult point, mainly because: 1. Beauveria bassiana is a living microorganism that exerts its medicinal effect, and the process of developing dosage forms can easily lead to inactivation of the strains, resulting in the development of new dosage forms with low efficacy. There is no promotion value; two, the new dosage form of Beauveria bassiana developed has always been based on powder, and the labor efficiency of application is low, so it is urgent to develop a new dosage form with high drug efficacy and beneficial application; three, even if an effective dosage form is developed, the dosage form preservation and The difficulty of field use also limits the promotion and use, so the promotion and commercialization of Beauveria bassiana are difficult

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