Preparation method of composition for resisting downy mildew

Abstract

The invention discloses a preparation method of a composition for resisting downy mildew. The method includes the following steps of A, preparing materials including 55% dimethorph wettable powder, 30% monopotassium phosphate aqueous solution, polyethylene glycol solution, phillyrin, chlorogenic acid, stachydrine, ludox and calcium chloride; B, extracting an extracting solution of ludox and calcium chloride through alcohols; C, compounding 55% dimethorph wettable powder, 30% monopotassium phosphate solution, polyethylene glycol solution, phillyrin, chlorogenic acid and stachydrine with the extracting solution obtained in the step B, stirring the mixture evenly, conducting sterilization through ultraviolet rays, and obtaining medicine for resisting Chinese cabbage downy mildew. The preparation method is simple, the prepared composition is simple in preparation method, simple in ratio, convenient to use and good in Chinese cabbage downy mildew treatment effect; through experiments and tests, 400-fold to 600-fold solutions of the mixture have a remarkable inactivating effect on the eubacterium deuteromycota parasitic downy mildew and are good in sterilizing effect.

Description

Technical field: [0001] The invention relates to vegetable medicine, in particular to a preparation method of a downy mildew resistant composition. Background technique: [0002] The parasitic peronospora mainly harms Chinese cabbage. The mycelium is colorless and without septum. It grows between the silk cells and absorbs water and nutrients through the haustoria. The haustoria is sac-shaped, spherical or bifurcated. During vegetative reproduction, cyst peduncles are produced from the hyphae, protruding from the stomata, colorless, without septa, solitary or in bundles of 2-4 roots, 260-300 μm long, the base of the main branch is slightly enlarged, repeating bifurcations Branches, with 2-5 sub-branches at the top, the main axis and branches are at an acute angle, the peduncles at the top are sharp and curved, and a sporangia grows at each end. Sporangia are colorless, unicellular, oblong to oval, 24~27×15~20μm, germ tubes are usually produced from the side during germina...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problem of drug resistance caused by cabbage downy mildew at present, the present invention provides a kind of drug resistance which is simple in manufacturing method, simple in manufacturing method of the obtained product, simple in proportioning of the prepared product, convenient in use and good in treating cabbage downy mildew. Production method of composition against downy mildew