Use method of compound pharmaceutical composition for preventing powdery mildew

Abstract

The invention discloses a use method of a compound pharmaceutical composition for preventing powdery mildew. The use method includes the steps: A, preparing stock solution; B, adding water into the stock solution and mixing the stock solution and the water into dilution solution with 400-600 mass times; C, uniformly and thoroughly spraying the dilution solution to the front and the back of each leaf, focally spraying the dilution solution to the diseased leaves and protecting upper healthy leaves by spraying; D, supplementing fertilizers within 3 days after spraying to prevent early aging due to shortage of the fertilizers, and enhancing disease resistance of plants; E, performing smoking by the aid of sulfur in a greenhouse for 10 minutes everyday within 3 days after spraying. The stock solution comprises 35% of high-fat membranes, 50% of drazoxolon, dried orange peel, soapstone, baicalein, 60% of chlorothalonil, quispualis indica and galangal. 3.5-4kg of dilution solution is used per mu. After the fertilizers are applied, watering is omitted in cloudy days, more fresh air is supplied in sunny days, the relative humidity of the greenhouse is reduced, excessive temperature is prevented, and stuffiness is avoided. The compound pharmaceutical composition is simple to match and convenient to use, the effect of treating the cucumber powdery mildew is fine, and tests indicate that the 400-600 time solution of mixture has obvious deactivation for fungus deuteromycotina sphaerotheca powdery mildew and is fine in bactericidal effect.

Description

[0001] Technical field: [0002] The invention relates to vegetable medicines, in particular to a method for using a compound medicine composition for preventing and treating powdery mildew. [0003] Background technique: [0004] Cucumber powdery mildew, commonly known as "white hair disease", is the most serious damage to leaves, followed by petioles and stems, and generally does not harm fruits. In the early stage of the disease, small white powder spots on the front or back of cucumber powdery mildew-affected leaves will gradually expand into large white powder areas with inconspicuous edges, covering the leaf surface, as if sprinkled with white powder. Wipe off the white powder, it can be seen that the leaves are chlorotic, withered and yellow and brittle. When the disease is severe, the leaves are covered with white powder and become off-white until the whole leaf dies. After powdery mildew infects petioles and tender stems, the symptoms are similar to those on the ...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the drug resistance problem of cucumber powdery mildew at present, the present invention provides a method for using a compound pharmaceutical composition for the prevention and treatment of cucumber powdery mildew with simple proportioning, convenient use and good effect in treating cucumber powdery mildew