CN104872201A - Composition for preventing and curing scab of apple trees and preparation method thereof - Google Patents

Abstract

The invention discloses a composition for preventing and curing scab of apple trees and a preparation method thereof, which belongs to the technical field of fruit tree diseases and insect pests prevention and cure. The composition is prepared by the following ingredients in parts by weight: 3-8 parts of difenoconazole, 1-5 parts of carbendazim, 1-6 parts of myclobutanil, 0.5-1 part of stearic acid, 5-15 parts of linseed oil, 1-2 parts of mineral oil, 0.5-1 part of sodium alkyl benzene sulfonate, 1-2 parts of artemisia princeps leaf extracts, 1-3 parts of heartleaf houttuynia herb extracts, 1-4 parts of shrubby sophora extracts, 0.2-1 part of hydroxypropyl methyl cellulose, and 1-2 parts of organosilicone. The composition obtained by the invention has good preventing and curing effect on the scab of the apple trees, the actual preventing and curing effect is improved, the pesticide residue is less, and the product is green and environmental friendly, has small harm on people and animals, and conforms to the social development direction.

Description

A kind of composition and method of making the same preventing and treating apple tree scab

Technical field

The invention belongs to pest and disease control of fruit trees Prevention Technique field, relate to a kind of composition and method of making the same preventing and treating apple tree scab particularly.

Background technology

The pathogen of apple scab is venturia inaequalis, belongs to Ascomycotina fungi.Apple scab main harm blade and fruit, scab subcircular or radially on blade, raw green and brown look mould layer on initial stage leaf, mould layer fades to brown to black after a while.

Apple scab is worldwide apple disease, and state's harm such as Europe, the U.S. and Japan are serious, and there are this disease in the many provinces and cities in the north of China.Apple black star bacteria with mycelium in branch ulcer and perula or perithecium fallen leaves on survive the winter.Ascospore is ripe for spring to Second Year, and field conidium is maximum in 6 ~ July.Germ also can by aphis propagation.Host is that bud opens and petal comes off period the most vulnerable period, and the scab on sepal infects the best bacterium source of fruit after being.Therefore, early spring is the important period that disease occurs.In apple susceptible period, weather is unbroken rainy, is suitable for germ primary infection.Killed during fruit maturation, cause the loss in duration of storage and transport.Between apple each kind, disease resistance there are differences, and in griggles kind, yellow peace is the most susceptible, and be secondly hypericum ascyron and premium, Henan Malus spectabilis, toringo are comparatively disease-resistant; Spending more Malus spectabilis is high resistance kind.Big Apple kind, state's light and Fuji are more susceptible; Secondly be that the Variety Disease-resistance power such as India, Red Star, Jin Guan, Zhu Guang, the rising sun, Huang Kui are strong.

At present, the bactericide preventing and treating apple scab is generally pure chemistry medicament, and the problem of environmental pollution caused owing to using chemical pesticide is in a large number on the rise.Meanwhile, adopt chemical pesticide bactericide, time various phytopathogen bacterial classification produce drug resistance, pesticide resistance, add the difficulty of control, even cause and prevent and treat unsuccessfully.In addition, chemical pesticide does not have selectivity because of it, also can threaten to useful biology.And a lot of chemical pesticide is non-degradable or is difficult to degraded, easily pollutes the enrichment of thing at animals and plants cylinder accumulation.And along with the requirement of the public to green non-pollution food more and more higher, market to pollution-free, can the ecological agricultural chemical demand of natural degradation also increase gradually.From the development of pesticide science, using the Harmless of upper returning nature and agricultural chemicals at pesticide manufacturing, is the inexorable trend of society and Development of Natural Science.

Summary of the invention

The present invention is directed to the deficiency that prior art exists, a kind of composition and method of making the same preventing and treating apple tree scab is provided.

Prevent and treat a composition for apple tree scab, be made up of the component of following weight portion: Difenoconazole 3-8 part, carbendazim 1-5 part, nitrile bacterium azoles 1-6 part, stearic acid 0.5-1 part, linseed oil 5-15 part, mineral oil 1-2 part, sodium alkyl benzene sulfonate 0.5-1 part, Folium Artemisiae Argyi extract 1-2 part, houttuynia extract 1-3 part, shrubby sophora extract 1-4 part, hydroxypropyl methylcellulose 0.2-1 part, organosilicon 1-2 part.

As preferably, the composition of described control apple tree scab, is made up of the component of following weight portion: Difenoconazole 5 parts, carbendazim 3 parts, nitrile bacterium azoles 4 parts, stearic acid 0.8 part, linseed oil 10 parts, 1.5 parts, mineral oil, sodium alkyl benzene sulfonate 0.7 part, Folium Artemisiae Argyi extract 1.5 parts, houttuynia extract 2 parts, shrubby sophora extract 2.5 parts, hydroxypropyl methylcellulose 0.5 part, organosilicon 1.5 parts.

The preparation method of the composition of described control apple tree scab, comprises the following steps:

By tarragon through pulverize, after crossing 80 mesh sieves, add the ethanol water of 3-5 times amount 75%, be heated to 70-80 DEG C and decoct 2-3h, filter, filtrate is collected, filter residue adds the ethanol water of 2-4 times amount 80%, be heated to 75-90 DEG C and decoct 1-2h, filter, merging filtrate, be concentrated into the 1/5-1/4 that ethanol water adds total amount, add 1-3 times of volume water, leave standstill 24-48h, filter, filtrate is concentrated into without alcohol taste medicinal extract, obtain Folium Artemisiae Argyi extract, by the method for operating that above-mentioned tarragon is extracted, cordate houttuynia and kuh-seng are extracted respectively, obtain houttuynia extract and shrubby sophora extract,

(2) take Folium Artemisiae Argyi extract, houttuynia extract, shrubby sophora extract, hydroxypropyl methylcellulose, carbendazim, mixing, obtains compound, adds its quality 3-8 deionized water doubly, fully dissolve, obtain aqueous phase liquid in compound;

(3), by linseed oil, mineral oil mixing, add Difenoconazole, nitrile bacterium azoles, stearic acid, sodium alkyl benzene sulfonate, organosilicon wherein, stir, obtain oil phase liquid;

(4) under the stirring condition of 3000-4000r/min, joined lentamente in oil phase liquid by aqueous phase liquid, then under 4000-5000r/min, high-speed circulating shears 20-30min, obtains aqueous emulsion product.

The invention has the beneficial effects as follows: the composition that the present invention obtains is good for the control efficiency of apple tree scab, improve actual control efficiency, component is by the composite usage amount that can reduce medicine, germ pesticide resistance can be delayed produce, residue of pesticide are few, Product Green environmental protection, little to the injury of people and animals etc., meet the developing direction of society.In the formulations of pesticide, adopt aqueous emulsion agent, product active constituent content is high, aqueous emulsion is water base chemical preparation, do not conform to and have a large amount of organic solvents, production process is without dust, without the three wastes, environmental pollution is little, energy consumption is low, adopts different oil phases, the composition of aqueous phase, adopts the charging sequence and operation etc. of optimization in preparation method, further increase control efficiency, also indirectly play the effect delaying germ pesticide resistance and reduce residue of pesticide, be supplementing bactericidal composition, make the better effects if of said composition.

Embodiment

Below by embodiment, the present invention is further elaborated, but do not form scope restriction of the present invention.

Embodiment 1

By tarragon after pulverizing, crossing 80 mesh sieves, add the ethanol water of 3 times amount 75%, be heated to 70 DEG C and decoct 2h, filter, filtrate is collected, and filter residue adds the ethanol water of 2 times amount 80%, be heated to 75 DEG C and decoct 1h, filter, merging filtrate, be concentrated into that ethanol water adds total amount 1/5, add 1 times of volume water, leave standstill 24h, filter, filtrate is concentrated into without alcohol taste medicinal extract, obtain Folium Artemisiae Argyi extract, by the method for operating that above-mentioned tarragon is extracted, cordate houttuynia and kuh-seng are extracted respectively, obtain houttuynia extract and shrubby sophora extract.By weight, take Folium Artemisiae Argyi extract 1 part, houttuynia extract 1 part, shrubby sophora extract 1 part, hydroxypropyl methylcellulose 0.2 part, carbendazim 1 part, mixing, obtain compound, in compound, add the deionized water of its quality 3 times, fully dissolve, obtain aqueous phase liquid.By linseed oil 5 parts, the mixing of 1 part, mineral oil, add Difenoconazole 3 parts, nitrile bacterium azoles 1 part, stearic acid 0.5 part, sodium alkyl benzene sulfonate 0.5 part, organosilicon 1 part wherein, stir, obtain oil phase liquid.Under the stirring condition of 3000r/min, joined lentamente in oil phase liquid by aqueous phase liquid, then under 4000r/min, high-speed circulating shears 20min, obtains aqueous emulsion product.

Embodiment 2

By tarragon after pulverizing, crossing 80 mesh sieves, add the ethanol water of 5 times amount 75%, be heated to 80 DEG C and decoct 3h, filter, filtrate is collected, and filter residue adds the ethanol water of 4 times amount 80%, be heated to 90 DEG C and decoct 2h, filter, merging filtrate, be concentrated into that ethanol water adds total amount 1/4, add 3 times of volume water, leave standstill 48h, filter, filtrate is concentrated into without alcohol taste medicinal extract, obtain Folium Artemisiae Argyi extract, by the method for operating that above-mentioned tarragon is extracted, cordate houttuynia and kuh-seng are extracted respectively, obtain houttuynia extract and shrubby sophora extract.By weight, take Folium Artemisiae Argyi extract 2 parts, houttuynia extract 3 parts, shrubby sophora extract 4 parts, hydroxypropyl methylcellulose 1 part, carbendazim 5 parts, mixing, obtain compound, in compound, add the deionized water of its quality 8 times, fully dissolve, obtain aqueous phase liquid.By linseed oil 15 parts, the mixing of 2 parts, mineral oil, add Difenoconazole 8 parts, nitrile bacterium azoles 6 parts, stearic acid 1 part, sodium alkyl benzene sulfonate 1 part, organosilicon 2 parts wherein, stir, obtain oil phase liquid.Under the stirring condition of 4000r/min, joined lentamente in oil phase liquid by aqueous phase liquid, then under 5000r/min, high-speed circulating shears 30min, obtains aqueous emulsion product.

Embodiment 3

By tarragon after pulverizing, crossing 80 mesh sieves, add the ethanol water of 4 times amount 75%, be heated to 75 DEG C and decoct 2.5h, filter, filtrate is collected, and filter residue adds the ethanol water of 3 times amount 80%, be heated to 80 DEG C and decoct 1.5h, filter, merging filtrate, be concentrated into that ethanol water adds total amount 1/5, add 2 times of volume water, leave standstill 36h, filter, filtrate is concentrated into without alcohol taste medicinal extract, obtain Folium Artemisiae Argyi extract, by the method for operating that above-mentioned tarragon is extracted, cordate houttuynia and kuh-seng are extracted respectively, obtain houttuynia extract and shrubby sophora extract.By weight, take Folium Artemisiae Argyi extract 1.5 parts, houttuynia extract 2 parts, shrubby sophora extract 2.5 parts, hydroxypropyl methylcellulose 0.5 part, carbendazim 3 parts, mixing, obtain compound, in compound, add the deionized water of its quality 5 times, fully dissolve, obtain aqueous phase liquid.By linseed oil 10 parts, the mixing of 1.5 parts, mineral oil, add Difenoconazole 5 parts, nitrile bacterium azoles 3 parts, stearic acid 0.7 part, sodium alkyl benzene sulfonate 0.8 part, organosilicon 1.5 parts wherein, stir, obtain oil phase liquid.Under the stirring condition of 3500r/min, joined lentamente in oil phase liquid by aqueous phase liquid, then under 4500r/min, high-speed circulating shears 25min, obtains aqueous emulsion product.

Claims (3)

1. prevent and treat a composition for apple tree scab, it is characterized in that: be made up of the component of following weight portion: Difenoconazole 3-8 part, carbendazim 1-5 part, nitrile bacterium azoles 1-6 part, stearic acid 0.5-1 part, linseed oil 5-15 part, mineral oil 1-2 part, sodium alkyl benzene sulfonate 0.5-1 part, Folium Artemisiae Argyi extract 1-2 part, houttuynia extract 1-3 part, shrubby sophora extract 1-4 part, hydroxypropyl methylcellulose 0.2-1 part, organosilicon 1-2 part.

2. a kind of composition preventing and treating apple tree scab according to claim 1, is characterized in that: be made up of the component of following weight portion: Difenoconazole 5 parts, carbendazim 3 parts, nitrile bacterium azoles 4 parts, stearic acid 0.8 part, linseed oil 10 parts, 1.5 parts, mineral oil, sodium alkyl benzene sulfonate 0.7 part, Folium Artemisiae Argyi extract 1.5 parts, houttuynia extract 2 parts, shrubby sophora extract 2.5 parts, hydroxypropyl methylcellulose 0.5 part, organosilicon 1.5 parts.

3. a kind of preparation method preventing and treating the composition of apple tree scab according to claim 1, is characterized in that: comprise the following steps:

By tarragon through pulverize, after crossing 80 mesh sieves, add the ethanol water of 3-5 times amount 75%, be heated to 70-80 DEG C and decoct 2-3h, filter, filtrate is collected, filter residue adds the ethanol water of 2-4 times amount 80%, be heated to 75-90 DEG C and decoct 1-2h, filter, merging filtrate, be concentrated into the 1/5-1/4 that ethanol water adds total amount, add 1-3 times of volume water, leave standstill 24-48h, filter, filtrate is concentrated into without alcohol taste medicinal extract, obtain Folium Artemisiae Argyi extract, by the method for operating that above-mentioned tarragon is extracted, cordate houttuynia and kuh-seng are extracted respectively, obtain houttuynia extract and shrubby sophora extract,

(2) take Folium Artemisiae Argyi extract, houttuynia extract, shrubby sophora extract, hydroxypropyl methylcellulose, carbendazim, mixing, obtains compound, adds its quality 3-8 deionized water doubly, fully dissolve, obtain aqueous phase liquid in compound;

(3), by linseed oil, mineral oil mixing, add Difenoconazole, nitrile bacterium azoles, stearic acid, sodium alkyl benzene sulfonate, organosilicon wherein, stir, obtain oil phase liquid;

(4) under the stirring condition of 3000-4000r/min, joined lentamente in oil phase liquid by aqueous phase liquid, then under 4000-5000r/min, high-speed circulating shears 20-30min, obtains aqueous emulsion product.