CN103621584A - Drug for preventing and treating cucumber downy mildew - Google Patents

Abstract

The invention discloses a drug for preventing and treating cucumber downy mildew. The drug contains the following ingredients in parts by weight: 10-15 parts of 90% phosethyl-Al wettable powder, 8-12 parts of forsythia fruits, 3-6 parts of wild chrysanthemum flowers, 3-6 parts of alkaloid-decanoyl acetaldehyde, 6-9 parts of garlic oil and 2-4 parts of oxadixyl-azoxystrobin. The drug is simple in preparation and convenient in use and has a good cucumber downy mildew treatment effect; during the use of the drug, 90% phosethyl-Al wettable powder, forsythia fruits, wild chrysanthemum flowers, alkaloid-decanoyl acetaldehyde, garlic oil and oxadixyl-azoxystrobin are mixed together, liquid of a volume of 400-500 times that of the mass of the mixture is prepared, and then, spraying operation is carried out (during the use of forsythia fruits and wild chrysanthemum flowers, an extract is extracted by an alcohol extraction method and is used during mixing); shown by testing, the liquid of a volume of 400-500 times that of the mass of the mixture has an obvious inactivation effect on downy mildew and has a good bactericidal effect.

Description

A kind of control medicine of cucumber downy mildew

 

Technical field:

The present invention relates to vegetables medicine, particularly a kind of control medicine of cucumber downy mildew.

 

Background technology:

The morbidity of cucumber downy mildew Seedling Stage, the irregular chlorisis yellowish-brown spot of the positive generation of cotyledon, the straight cucumber downy mildew of scab footpath 0.2-0.5 centimetre, when moist, the scab back side produces taupe mustiness thing, and when serious, cotyledons turn yellow is withered.Strain morbidity, how, from forward position, greenhouse, there is water stain shape, light green fleck in morbidity strain before this middle and lower part blade reverse side, and front is aobvious, and rear scab expands gradually, front exposed, scab flavescence brown, is limited by vein, and scab is polygonal.Under wet condition, there is puce or the sparse mould layer of taupe in the scab back side.When serious, scab joins together, and blade is withered.Downy mildew is modal a kind of disease on cucumber, and seedling stage, strain phase all can catch an illness.Conventionally first by plant middle part blade, start morbidity,, there is chlorisis spot in portion's expansion up and down gradually on their early stage blade, forms the irregular shape scab of yellowish-brown after expansion.When humidity is high, vacuum side of blade is first water soaking mode, then produces the mould layer of grey black.Necrosis place of blade back scab can be oozed out colourless or light yellow droplet.Scab is expanded very soon, and l～2 its expansion of day internal cause is subject to vein restriction and is polygonal, and especially the most obvious with the water soaking mode horn shape scab in morning, live in retirement noon a little.In the later stage, scab and near mesophyll are rust.When seriously ill, blade is covered with scab, mutually in flakes, causes leaf margin curling withered, and last blade is withered and yellow.Slowly, scab is less for the expansion of disease-resistant variety blade chlorisis spot, is polygonal even circular, and the mould layer in the scab back side is sparse or there is no mould layer.Its pathogen claims Cuba artificial downy mildew, belongs to Mastigomycotina fungi.Sporangiophore stretches out from pore, single raw or 2～4 Shu Sheng, and colourless, base portion slightly expands, and top is acute angle branch 3～5 times, and branch end a raw sporangium, the avette or lemon shape of sporangium, top tool papilla, filbert, unit cell.For being bacterial parasite, only can be parasitic on life plant, there is Differentiation of Pathogenicity phenomenon.Between China's bacterial strain of cucumber downy mildew bacteria, there is pathogenic strong and weak difference, but not yet clearly distinguish biological strain.The present invention is based on prior art, aim to provide a kind of proportioning simple, easy to use, the control medicine of effective a kind of cucumber downy mildew for the treatment of cucumber downy mildew.

 

Summary of the invention:

The object of the invention is to overcome the shortcoming existing in prior art, provide a kind of proportioning simple, easy to use, the control medicine of effective a kind of cucumber downy mildew for the treatment of cucumber downy mildew.

To achieve these goals, the invention provides a kind of control medicine of cucumber downy mildew, wherein, comprise the component of following unit of weight:

90% phosethyl-Al wetting powder 10-15 part, capsule of weeping forsythia 8-12 part, mother chrysanthemum 3-6 part, white Bel 3-6 part, garlic oil 6-9 part, phonetic copper bacterium ester 2-4 part.

Or, comprise the component of following unit of weight:

90% phosethyl-Al wetting powder 10-12 part, capsule of weeping forsythia 8-10 part, mother chrysanthemum 3-5 part, white Bel 3-5 part, garlic oil 6-8 part, phonetic copper bacterium ester 2-3 part.

Or, comprise the component of following unit of weight:

90% phosethyl-Al wetting powder 12-15 part, capsule of weeping forsythia 10-12 part, mother chrysanthemum 4-6 part, white Bel 4-6 part, garlic oil 7-9 part, phonetic copper bacterium ester 3-4 part.

During use, after said components is mixed, be configured to 400-500 times of liquid of quality multiple, carry out spraying operation.

90% phosethyl-Al wetting powder is mass percent.

Advantage of the present invention is that proportioning is simple, easy to use, treats the effective of cucumber downy mildew, is specially:

When the present invention uses, 90% phosethyl-Al wetting powder, the capsule of weeping forsythia, mother chrysanthemum, white Bel, garlic oil, phonetic copper bacterium ester.After being mixed, be configured to 400-500 times of liquid of quality multiple, carry out spraying operation.(when the capsule of weeping forsythia and mother chrysanthemum are used, use alcohol leach extraction method to extract extract, what during mixing, use is extract.) through experimental test, the 400-500 of mixture times liquid, has obvious deactivation to Cuba artificial downy mildew, bactericidal effect is good.

 

Embodiment:

Example 1

90% 15 parts of phosethyl-Al wetting powders, 12 parts of the capsules of weeping forsythia, 6 parts of mother chrysanthemums, 6 parts of white Bels, 9 parts of garlic oils, 4 parts of phonetic copper bacterium esters.

When the present invention uses, 90% phosethyl-Al wetting powder, the capsule of weeping forsythia, mother chrysanthemum, white Bel, garlic oil, phonetic copper bacterium ester.After being mixed, be configured to 400-500 times of liquid of quality multiple, carry out spraying operation.(when the capsule of weeping forsythia and mother chrysanthemum are used, use alcohol leach extraction method to extract extract, what during mixing, use is extract.) through experimental test, the 400-500 of mixture times liquid, has obvious deactivation to Cuba artificial downy mildew, bactericidal effect is good.Efficient 93.5%.

 

Example 2

90% 10 parts of phosethyl-Al wetting powders, 8 parts of the capsules of weeping forsythia, 3 parts of mother chrysanthemums, 3 parts of white Bels, 6 parts of garlic oils, 2 parts of phonetic copper bacterium esters.

When the present invention uses, 90% phosethyl-Al wetting powder, the capsule of weeping forsythia, mother chrysanthemum, white Bel, garlic oil, phonetic copper bacterium ester.After being mixed, be configured to 400-500 times of liquid of quality multiple, carry out spraying operation.(when the capsule of weeping forsythia and mother chrysanthemum are used, use alcohol leach extraction method to extract extract, what during mixing, use is extract.) through experimental test, the 400-500 of mixture times liquid, has obvious deactivation to Cuba artificial downy mildew, bactericidal effect is good.Efficient 91.5%.

 

Example 3

90% 12 parts of phosethyl-Al wetting powders, 10 parts of the capsules of weeping forsythia, 4 parts of mother chrysanthemums, 4 parts of white Bels, 7 parts of garlic oils, 3 parts of phonetic copper bacterium esters.

When the present invention uses, 90% phosethyl-Al wetting powder, the capsule of weeping forsythia, mother chrysanthemum, white Bel, garlic oil, phonetic copper bacterium ester.After being mixed, be configured to 400-500 times of liquid of quality multiple, carry out spraying operation.(when the capsule of weeping forsythia and mother chrysanthemum are used, use alcohol leach extraction method to extract extract, what during mixing, use is extract.) through experimental test, the 400-500 of mixture times liquid, has obvious deactivation to Cuba artificial downy mildew, bactericidal effect is good.Efficient 94.2%.

 

Example 4

90% 12 parts of phosethyl-Al wetting powders, 8 parts of the capsules of weeping forsythia, 3 parts of mother chrysanthemums, 3 parts of white Bels, 6 parts of garlic oils, 2 parts of phonetic copper bacterium esters.

When the present invention uses, 90% phosethyl-Al wetting powder, the capsule of weeping forsythia, mother chrysanthemum, white Bel, garlic oil, phonetic copper bacterium ester.After being mixed, be configured to 400-500 times of liquid of quality multiple, carry out spraying operation.(when the capsule of weeping forsythia and mother chrysanthemum are used, use alcohol leach extraction method to extract extract, what during mixing, use is extract.) through experimental test, the 400-500 of mixture times liquid, has obvious deactivation to Cuba artificial downy mildew, bactericidal effect is good.Efficient 92.3%.

Claims (3)

1. a control medicine for cucumber downy mildew, is characterized in that, comprises the component of following unit of weight:

90% phosethyl-Al wetting powder 10-15 part, capsule of weeping forsythia 8-12 part, mother chrysanthemum 3-6 part, white Bel 3-6 part, garlic oil 6-9 part, phonetic copper bacterium ester 2-4 part.

2. the control medicine of cucumber downy mildew according to claim 1, is characterized in that, comprises the component of following unit of weight:

90% phosethyl-Al wetting powder 10-12 part, capsule of weeping forsythia 8-10 part, mother chrysanthemum 3-5 part, white Bel 3-5 part, garlic oil 6-8 part, phonetic copper bacterium ester 2-3 part.

3. the control medicine of cucumber downy mildew according to claim 1, is characterized in that, comprises the component of following unit of weight:

90% phosethyl-Al wetting powder 12-15 part, capsule of weeping forsythia 10-12 part, mother chrysanthemum 4-6 part, white Bel 4-6 part, garlic oil 7-9 part, phonetic copper bacterium ester 3-4 part.