Production method of medicine for preventing and curing cucumber downy mildew

Abstract

The invention discloses a production method of a medicine for preventing and curing cucumber downy mildew, comprising the following steps: A, material preparation: 90 wt% of fosetyl-aluminium wettable powder, fructus forsythiae, wild chrysanthemum flower, ShuangBeiEr, garlic extract and copper azoxystrobin are prepared; B, alcohol leaching of extracts of fructus forsythiae and wild chrysanthemum flower: fructus forsythiae and wild chrysanthemum flower are crushed, broken and washed; after air drying, fructus forsythiae and wild chrysanthemum flower are placed in a closed container; 75 wt% of an ethanol solution is added, fructus forsythiae and wild chrysanthemum flower are infiltrated and immersed for 12 hours and then are placed in a percolator; the percolator is a barrel structure, a cone is arranged at the bottom of the barrel structure, and switch equipment for dripping is disposed below the cone for extraction of medicinal materials; medicinal materials are uniformly placed in the barrel; an immersion fluid, water or wine, is added and drips slowly; a percolate is collected; and ethanol is heated and recovered to obtain an extract; and C, 90 wt% of fosetyl-aluminium wettable powder, ShuangBeiEr, garlic extract and copper azoxystrobin are added into the extract obtained from the step B, and mixing and uniform stirring are carried out to obtain the medicine for preventing and curing cucumber downy mildew. The production method is simple. The produced product requires a simple composition ratio, is convenient to use and has a good effect of treating cucumber downy mildew.

Description

[0001] Technical field:

[0002] The invention relates to a medicine for vegetables, in particular to a method for preparing a medicine for preventing and treating cucumber downy mildew.

[0003] Background technique:

[0004] Cucumber downy mildew occurs at the seedling stage, and irregular chlorotic yellow-brown spots appear on the front of the cotyledon, and the diameter of the spot is 0.2-0.5 cm. When it is wet, gray-brown moldy matter is produced on the back of the spot, and the cotyledon turns yellow when it is severe. dry. The disease of adult plants usually starts from the front of the greenhouse. The diseased plants first appear water-soaked, light green small spots on the back of the middle and lower leaves, which are not visible on the front, and then the spots gradually expand and appear on the front. Lesions are polygonal. Under humid conditions, a purple-brown or taupe sparse mold layer appears on the back of the lesions. In severe cases, the lesions become...

Examples

Embodiment Construction

[0023] Example 1

[0024] 15 parts of 90% aluminum triethylphosphonate wettable powder, 12 parts of forsythia, 6 parts of wild chrysanthemum, 6 parts of cream bell, 9 parts of garlic oil, and 4 parts of acicostrobin.

[0025] A, raw materials: 90% aluminum triethylphosphonate wettable powder, forsythia, wild chrysanthemum, cream bell, garlic oil, acicostrobin;

[0026] B. Extraction of forsythia and wild chrysanthemum by alcohol extraction:

[0027] Forsythia and wild chrysanthemum are broken, washed and dried, put in a closed container, add 75% ethanol solution by mass percentage, soak and soak for 12 hours, then put into the percolator, the percolation The device is a barrel structure, with a cone at the bottom, and a switch that can drip water is connected under the cone, which is used to extract the ingredients of medicinal materials. Put the medicinal materials evenly into the barrel, add soaking liquid: water or wine, slowly drip, Collect the percolation liquid, heat a...

[0001] Technical field:

[0002] The invention relates to a medicine for vegetables, in particular to a method for preparing a medicine for preventing and treating cucumber downy mildew.

[0003] Background technique:

[0004] Cucumber downy mildew occurs at the seedling stage, and irregular chlorotic yellow-brown spots appear on the front of the cotyledon, and the diameter of the spot is 0.2-0.5 cm. When it is wet, gray-brown moldy matter is produced on the back of the spot, and the cotyledon turns yellow when it is severe. dry. The disease of adult plants usually starts from the front of the greenhouse. The diseased plants first appear water-soaked, light green small spots on the back of the middle and lower leaves, which are not visible on the front, and then the spots gradually expand and appear on the front. Lesions are polygonal. Under humid conditions, a purple-brown or taupe sparse mold layer appears on the back of the lesions. In severe cases, the lesions become...

Examples

Embodiment Construction

[0023] Example 1

[0024] 15 parts of 90% aluminum triethylphosphonate wettable powder, 12 parts of forsythia, 6 parts of wild chrysanthemum, 6 parts of cream bell, 9 parts of garlic oil, and 4 parts of acicostrobin.

[0025] A, raw materials: 90% aluminum triethylphosphonate wettable powder, forsythia, wild chrysanthemum, cream bell, garlic oil, acicostrobin;

[0026] B. Extraction of forsythia and wild chrysanthemum by alcohol extraction:

[0027] Forsythia and wild chrysanthemum are broken, washed and dried, put in a closed container, add 75% ethanol solution by mass percentage, soak and soak for 12 hours, then put into the percolator, the percolation The device is a barrel structure, with a cone at the bottom, and a switch that can drip water is connected under the cone, which is used to extract the ingredients of medicinal materials. Put the medicinal materials evenly into the barrel, add soaking liquid: water or wine, slowly drip, Collect the percolation liquid, heat a...