CN103404523A - Pesticide for preventing crop diseases such as powdery mildews, leaf spots and downy mildews and preparation thereof - Google Patents
Pesticide for preventing crop diseases such as powdery mildews, leaf spots and downy mildews and preparation thereof Download PDFInfo
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- CN103404523A CN103404523A CN2013103680159A CN201310368015A CN103404523A CN 103404523 A CN103404523 A CN 103404523A CN 2013103680159 A CN2013103680159 A CN 2013103680159A CN 201310368015 A CN201310368015 A CN 201310368015A CN 103404523 A CN103404523 A CN 103404523A
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- pyraclostrobin
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Abstract
The invention discloses a pesticide for preventing crop diseases such as powdery mildews, leaf spots and downy mildews, which comprises pyraclostrobin, tebuconazole or propineb or boscalid, and an insecticidally acceptable additive composition, wherein the mass ratio of the pyraclostrobin to the tebuconazole or propineb or boscalid is (32:1)-(1:32). The invention also provides a method for preparing the pesticide into wettable powder, water dispersible granule and suspending agent products. The pesticide has the characteristics of reasonable composition, good sterilization effect and low pesticide use cost; the activity and the sterilization effect of the pesticide are not the simple superposition of the activities of components, so that compared with the existing single preparations, the pesticide, besides a significant sterilization effect, has a remarkable synergistic effect, and therefore, the pesticide is good for crop safety, and conforms to the requirements on the safety of pesticide preparations; a bactericide composition disclosed by the invention concurrently has the effects of protection, treatment and activity eradication, can be applied to various crops such as wheat, rice, vegetables, fruit trees and flowers, and can be used for preventing and controlling various diseases such as downy mildews, epidemic diseases, rust diseases, powdery mildews, alternaria leaf spots, leaf spot diseases, scabs and rice blasts.
Description
Technical field
The invention belongs to technical field of pesticide, particularly a kind of be used to preventing agricultural chemicals and the preparation of crop white powder, tikka and downy mildew class disease.
Background technology
Crops cauline leaf disease species is more, such as downy mildew, epidemic disease, rust, powdery mildew, spot defoliation, leaf spot, scab, rice blast etc., wherein powdery mildew, leaf spot and downy mildew have certain representativeness, generally can cause the underproduction more than 30%, even have no harvest when serious.Existing agricultural chemicals is not considered the medicament complementary characteristic, reckons without the drug regimen synergistic effect, and bactericidal effect is not good, often needs heavy dose of medication, not only easily causes residual phenomena, to environment, has brought pollution yet.The active ingredient of existing agricultural chemicals is single simultaneously, and germ easily produces resistance to it.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the object of the present invention is to provide a kind of be used to preventing agricultural chemicals and the preparation of crop white powder, tikka and downy mildew class disease, this agricultural chemicals can be mixed with upper water dispersible granules, wetting powder, the suspending agent allowed of agricultural, has component reasonable, bactericidal effect is good, the characteristics that drug cost is low.
To achieve these goals, the technical solution used in the present invention is:
A kind of be used to preventing the agricultural chemicals of crop white powder, tikka and downy mildew class disease, comprising:
Mass ratio is pyraclostrobin and the Tebuconazole of 32: 1～1: 32, and acceptable auxiliary combination and filler on agricultural chemicals; Perhaps,
Mass ratio is pyraclostrobin and the Propineb of 32: 1～1: 32, and acceptable auxiliary combination and filler on agricultural chemicals; Perhaps,
Mass ratio is pyraclostrobin and the Boscalid of 32: 1～1: 32, and acceptable auxiliary combination and filler on agricultural chemicals.
Described auxiliary agent is dispersant and wetting agent, and in agricultural chemicals, each component accounts for mass percent and is: pyraclostrobin 1～32%, Tebuconazole 1～32%, dispersant 3～15%, wetting agent 2～12%, filler 8～84%; Be perhaps: pyraclostrobin 1～32%, Propineb 1～32%, dispersant 3～15%, wetting agent 2～12%, filler 8～84%; Be perhaps: pyraclostrobin 1～32%, Boscalid 1～32%, dispersant 3～15%, wetting agent 2～12%, filler 8～84%; In above situation, described agricultural chemicals is the wetting powder product.Wherein said dispersant can be selected dodecyl sodium naphthalene sulfonate (NNO) or sodium methylene bis-naphthalene sulfonate, and described wetting agent can be selected lauryl sodium sulfate or dodecyl sodium sulfate, and described filler can be selected kaolin.
The present invention provides simultaneously and has prepared described method be used to the agricultural chemicals (wetting powder) that prevents crop white powder, tikka and downy mildew class disease, and each component is mixed in proportion, mixes in mixed cylinder, mixes and get final product after airslide disintegrating mill is pulverized.
Described auxiliary agent is wetting agent, dispersant, disintegrant, defoamer and binding agent, in agricultural chemicals, each component accounts for mass percent and is: pyraclostrobin 1～32%, Tebuconazole 1～32%, wetting agent 1～8%, dispersant 1～10%, disintegrant 1～40%, defoamer 0.3～5%, binding agent 0.5～4%, surplus are filler; Be perhaps: pyraclostrobin 1～32%, Propineb 1～32%, wetting agent 1～8%, dispersant 1～10%, disintegrant 1～40%, defoamer 0.3～5%, binding agent 0.5～4%, surplus are filler; Be perhaps: pyraclostrobin 1～32%, Boscalid 1～32%, wetting agent 1～8%, dispersant 1～10%, disintegrant 1～40%, defoamer 0.3～5%, binding agent 0.5～4%, surplus are filler; In above situation, described agricultural chemicals is the water dispersible granules product; Wherein said dispersant can be selected dodecyl sodium naphthalene sulfonate (NNO) or sodium methylene bis-naphthalene sulfonate, described wetting agent can be selected lauryl sodium sulfate or dodecyl sodium sulfate, described disintegrant can be selected ammonium sulfate, described defoamer can be selected polysiloxanes or organosilicon, described binding agent can be selected xanthans, and described filler can be selected kaolin.
The present invention provides simultaneously and has prepared described method be used to the agricultural chemicals (water dispersible granules) that prevents crop white powder, tikka and downy mildew class disease, to except bonding agent, other component through air-flow crushing, obtain the particle diameter needed together in proportion, add again binding agent, obtain the materials of granulating, will granulate with materials quantitative send in the fluidized bed granulation dryer through granulation and drying after and get final product.
Described auxiliary agent is dispersant, wetting agent, thickener, antifreezing agent, defoamer and deionized water, in agricultural chemicals, each component accounts for mass percent and is: pyraclostrobin 1～32%, Tebuconazole 1～32%, dispersant 1～8%, wetting agent 1～10%, thickener 0.1～2%, antifreezing agent 1～10%, defoamer 0.1～1%, surplus are deionized water; Be perhaps: pyraclostrobin 1～32%, Propineb 1～32%, dispersant 1～8%, wetting agent 1～10%, thickener 0.1～2%, antifreezing agent 1～10%, defoamer 0.1～1%, surplus are deionized water; Be perhaps: pyraclostrobin 1～32%, Boscalid 1～32%, dispersant 1～8%, wetting agent 1～10%, thickener 0.1～2%, antifreezing agent 1～10%, defoamer 0.1～1%, surplus are deionized water; In above situation, described agricultural chemicals is the suspending agent product.Wherein said dispersant can be selected dodecyl sodium naphthalene sulfonate (NNO) or sodium methylene bis-naphthalene sulfonate, described wetting agent can be selected lauryl sodium sulfate or dodecyl sodium sulfate, described defoamer can be selected polysiloxanes or organosilicon, described thickener can be selected xanthans, and described antifreezing agent can be selected ethylene glycol or glycerine.
The present invention provides simultaneously and has prepared described method be used to the agricultural chemicals (suspending agent) that prevents crop white powder, tikka and downy mildew class disease, in proportion that dispersant, wetting agent, defoamer, thickener and antifreezing agent is even through shear-mixed, add pyraclostrobin and Tebuconazole, or pyraclostrobin and Propineb, or pyraclostrobin and Boscalid, ball milling is 2～3 hours in ball mill, makes diameter of particle all below 5 μ m and get final product.
Compared with prior art, component of the present invention is reasonable, bactericidal effect is good, drug cost is low, and its active and bactericidal effect is not the simple superposition of each composition activity, compares with existing unitary agent, except having significant bactericidal effect, and significant synergistic effect is arranged, and good to crop safety, meet the security requirement of pesticidal preparations.Microbicide compositions of the present invention has protection concurrently, treats and roots out activity; can be used for various crop such as wheat, paddy rice, vegetables, fruit tree, flowers etc., prevent and treat the multiple diseases such as downy mildew, epidemic disease, rust, powdery mildew, spot defoliation, leaf spot, scab, rice blast.
Embodiment
Below in conjunction with embodiment, describe embodiments of the present invention in detail.
Embodiment 1
34% pyraclostrobin Tebuconazole wetting powder
Pyraclostrobin 28%, Tebuconazole 6%, dodecyl phenenyl sulfate 5%, sodium lignin sulfonate 5%, ethylene glycol 5%, white carbon 7%, diatomite supply 100%, each component is mixed in proportion, in mixed cylinder, mix, mix again and obtain 34% pyraclostrobin Tebuconazole wetting powder after airslide disintegrating mill is pulverized.
Embodiment 2
40% pyraclostrobin Tebuconazole wetting powder
Pyraclostrobin 22%, Tebuconazole 16%, dispersant (sodium methylene bis-naphthalene sulfonate) 3%, wetting agent (lauryl sodium sulfate) 2%, filler (kaolin) supplies 100%, each component is mixed in proportion, in mixed cylinder, mix, mix again and obtain 40% pyraclostrobin Tebuconazole wetting powder after airslide disintegrating mill is pulverized.
Embodiment 3
40% pyraclostrobin Propineb water dispersible granules
Pyraclostrobin 30%, Propineb 10%, alkyl benzene sulfonate calcium salt 3%, Nekal BX 3%, succinic acid 2%, citric acid 1%, starch 10%, precipitated calcium carbonate supply 100%, to except bonding agent, other component through air-flow crushing, obtain the particle diameter needed together in proportion, add again binding agent, obtain the materials of granulating, will granulate and send in the fluidized bed granulation dryer and namely obtain 40% pyraclostrobin Propineb water dispersible granules after granulation and drying with materials quantitative.
Embodiment 4
45% pyraclostrobin Propineb water dispersible granules
Pyraclostrobin 30%, Propineb 15%, wetting agent (dodecyl sodium sulfate) 1%, dispersant (sodium methylene bis-naphthalene sulfonate) 1%, disintegrant (ammonium sulfate) 10%, binding agent (xanthans) 4%, filler supplies 100%, to except bonding agent, other component through air-flow crushing, obtain the particle diameter needed together in proportion, add again binding agent, obtain the materials of granulating, will granulate and send in the fluidized bed granulation dryer and namely obtain 45% pyraclostrobin Propineb water dispersible granules after granulation and drying with materials quantitative.
Embodiment 5
30% pyraclostrobin Boscalid suspending agent
Pyraclostrobin 25%, Boscalid 5%, alkyl benzene sulfonate calcium salt 4%, sodium lignin sulfonate 3%, DBSA 4%, silicone oil 0.1%, xanthan gum 0.3%, deionized water adds to 100%, in proportion that dispersant, wetting agent, defoamer, thickener and antifreezing agent is even through shear-mixed, add pyraclostrobin and Boscalid, ball milling is 2～3 hours in ball mill, makes diameter of particle all below 5 μ m, namely obtain 30% pyraclostrobin Boscalid suspending agent.
Embodiment 6
36% pyraclostrobin Boscalid suspending agent
Pyraclostrobin 25%, Boscalid 11%, dispersant (sodium methylene bis-naphthalene sulfonate) 7%, wetting agent (lauryl sodium sulfate) 4%, thickener (xanthans) 2%, antifreezing agent (ethylene glycol) 10%, defoamer (polysiloxanes) 1%, deionized water adds to 100%, in proportion that dispersant, wetting agent, defoamer, thickener and antifreezing agent is even through shear-mixed, add pyraclostrobin and Boscalid, ball milling is 2～3 hours in ball mill, makes diameter of particle all below 5 μ m, namely obtain 36% pyraclostrobin Boscalid suspending agent.
Embodiment 7
64% pyraclostrobin Tebuconazole wetting powder
Pyraclostrobin 32%, Tebuconazole 32%, dispersant (sodium methylene bis-naphthalene sulfonate) 15%, wetting agent (lauryl sodium sulfate) 12%, filler (kaolin) supply 100%, each component is mixed in proportion, in mixed cylinder, mix, mix again and obtain 64% pyraclostrobin Tebuconazole wetting powder after airslide disintegrating mill is pulverized.
Embodiment 8
10% pyraclostrobin Propineb water dispersible granules
Pyraclostrobin 1%, Propineb 9%, wetting agent (lauryl sodium sulfate) 8%, dispersant (sodium methylene bis-naphthalene sulfonate) 10%, disintegrant (ammonium sulfate) 10%, defoamer (organosilicon) 5%, binding agent (xanthans) 4%, filler (kaolin) supply 100%, to except bonding agent, other component through air-flow crushing, obtain the particle diameter needed together in proportion, add again binding agent, obtain the materials of granulating, will granulate and send in the fluidized bed granulation dryer and namely obtain 10% pyraclostrobin Propineb water dispersible granules after granulation and drying with materials quantitative.
Embodiment 9
5% pyraclostrobin Boscalid suspending agent
Pyraclostrobin 4%, Boscalid 1%, dispersant (sodium methylene bis-naphthalene sulfonate) 8%, wetting agent (lauryl sodium sulfate) 1%, thickener (xanthans) 2%, antifreezing agent (glycerine) 10%, defoamer (organosilicon) 0.1%, surplus is deionized water; In proportion that dispersant, wetting agent, defoamer, thickener and antifreezing agent is even through shear-mixed, add pyraclostrobin and Boscalid, ball milling is 2～3 hours in ball mill, makes diameter of particle all below 5 μ m, namely obtain 5% pyraclostrobin Boscalid suspending agent.
According to following methods, virulence of the present invention is tested:
The test medicament is selected pyraclostrobin and the composite product of Propineb, and determination object is cucumber downy mildew, and test environment is indoor, and test medicine provides by the vertical rich biotechnology of Shaanxi Kang He pharmaceutcal corporation, Ltd.
After the effective inhibition concentration scope of each medicament was determined in prerun, each medicament was established respectively 5 dosage by active constituent content and is processed, and established the clear water contrast.With reference to " farm-chemical indoor determination test rule bactericide ", carry out, adopt the pastille medium therapy to measure the virulence of medicament to bacterium of downy mildew of cucumber.After 4 days, measure colony diameter, calculate growth inhibition ratio.Result of the test is as shown in table 1:
Table 1 pyraclostrobin, Propineb and the composite analysis of results table of toxicity test to cucumber downy mildew thereof
As shown in Table 1, pyraclostrobin, the Propineb EC to bacterium of downy mildew of cucumber
50Be respectively 0.36mg/L and 12.16mg/L.The virulence of Propineb is higher than the virulence of pyraclostrobin.The co-toxicity coefficient of pyraclostrobin and Propineb proportioning 1:1,1:2,1:4,1:6,1:8 is respectively 127.05,135.92,139.65,159.59,148.48, both proportionings show as certain synergistic effect while being 1:4,1:6,1:8, illustrate that pyraclostrobin and Propineb are mixed in 1:4～1:8 scope comparatively reasonable.
In various embodiments of the present invention, dispersant can be selected dodecyl sodium naphthalene sulfonate (NNO) or sodium methylene bis-naphthalene sulfonate, wetting agent can be selected lauryl sodium sulfate or dodecyl sodium sulfate, defoamer can be selected polysiloxanes or organosilicon, thickener can be selected xanthans, and antifreezing agent can be selected ethylene glycol or glycerine, and disintegrant can be selected ammonium sulfate, binding agent can be selected xanthans, and filler can be selected kaolin.
Claims (8)
1. one kind be used to preventing the agricultural chemicals of crop white powder, tikka and downy mildew class disease, it is characterized in that, comprising:
Mass ratio is pyraclostrobin and the Tebuconazole of 32: 1～1: 32, and acceptable auxiliary combination on agricultural chemicals; Perhaps,
Mass ratio is pyraclostrobin and the Propineb of 32: 1～1: 32, and acceptable auxiliary combination on agricultural chemicals; Perhaps,
Mass ratio is pyraclostrobin and the Boscalid of 32: 1～1: 32, and acceptable auxiliary combination on agricultural chemicals.
2. according to claim 1 be used to preventing the agricultural chemicals of crop white powder, tikka and downy mildew class disease, it is characterized in that, described auxiliary agent is dispersant and wetting agent, and in agricultural chemicals, each component accounts for mass percent and is: pyraclostrobin 1～32%, Tebuconazole 1～32%, dispersant 3～15%, wetting agent 2～12%, filler 8～84%; Be perhaps: pyraclostrobin 1～32%, Propineb 1～32%, dispersant 3～15%, wetting agent 2～12%, filler 8～84%; Be perhaps: pyraclostrobin 1～32%, Boscalid 1～32%, dispersant 3～15%, wetting agent 2～12%, filler 8～84%; In above situation, described agricultural chemicals is the wetting powder product.
3. the described method be used to the agricultural chemicals that prevents crop white powder, tikka and downy mildew class disease of preparation claim 2, is characterized in that, each component is mixed in proportion, mixes in mixed cylinder, mixes and get final product after airslide disintegrating mill is pulverized.
4. according to claim 1 be used to preventing the agricultural chemicals of crop white powder, tikka and downy mildew class disease, it is characterized in that, described auxiliary agent is wetting agent, dispersant, disintegrant, defoamer and binding agent, in agricultural chemicals, each component accounts for mass percent and is: pyraclostrobin 1～32%, Tebuconazole 1～32%, wetting agent 1～8%, dispersant 1～10%, disintegrant 1～40%, binding agent 0.5～4%, surplus are filler; Be perhaps: pyraclostrobin 1～32%, Propineb 1～32%, wetting agent 1～8%, dispersant 1～10%, disintegrant 1～40%, binding agent 0.5～4%, surplus are filler; Be perhaps: pyraclostrobin 1～32%, Boscalid 1～32%, wetting agent 1～8%, dispersant 1～10%, disintegrant 1～40%, binding agent 0.5～4%, surplus are filler; In above situation, described agricultural chemicals is the water dispersible granules product.
5. the described method be used to the agricultural chemicals that prevents crop white powder, tikka and downy mildew class disease of preparation claim 4, it is characterized in that, to except bonding agent, other component through air-flow crushing, obtain the particle diameter needed together in proportion, add again binding agent, obtain the materials of granulating, will granulate with materials quantitative send in the fluidized bed granulation dryer through granulation and drying after and get final product.
6. according to claim 1 be used to preventing the agricultural chemicals of crop white powder, tikka and downy mildew class disease, it is characterized in that, described auxiliary agent is dispersant, wetting agent, thickener, antifreezing agent, defoamer and deionized water, and in agricultural chemicals, each component accounts for mass percent and is: pyraclostrobin 1～32%, Tebuconazole 1～32%, dispersant 1～8%, wetting agent 1～10%, thickener 0.1～2%, antifreezing agent 1～10%, defoamer 0.1～1%, surplus are deionized water; Be perhaps: pyraclostrobin 1～32%, Propineb 1～32%, dispersant 1～8%, wetting agent 1～10%, thickener 0.1～2%, antifreezing agent 1～10%, defoamer 0.1～1%, surplus are deionized water; Be perhaps: pyraclostrobin 1～32%, Boscalid 1～32%, dispersant 1～8%, wetting agent 1～10%, thickener 0.1～2%, antifreezing agent 1～10%, defoamer 0.1～1%, surplus are deionized water; In above situation, described agricultural chemicals is the suspending agent product.
7. the described method be used to the agricultural chemicals that prevents crop white powder, tikka and downy mildew class disease of preparation claim 6, it is characterized in that, in proportion that dispersant, wetting agent, defoamer, thickener and antifreezing agent is even through shear-mixed, add pyraclostrobin and Tebuconazole, or pyraclostrobin and Propineb, or pyraclostrobin and Boscalid, ball milling is 2～3 hours in ball mill, makes diameter of particle all below 5 μ m and get final product.
8. according to claim 1 be used to preventing the agricultural chemicals of crop white powder, tikka and downy mildew class disease, it is characterized in that, by the component of following mass percent, formed: the deionized water of pyraclostrobin 25%, Boscalid 5%, alkyl benzene sulfonate calcium salt 4%, sodium lignin sulfonate 3%, DBSA 4%, silicone oil 0.1%, xanthan gum 0.3% and surplus.
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Cited By (6)
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| CN104396979A (en) * | 2014-10-24 | 2015-03-11 | 北京富力特农业科技有限责任公司 | Bactericide and application thereof |
| WO2015139564A1 (en) * | 2014-03-18 | 2015-09-24 | Rotam Agrochem International Company Limited | A fungicidal composition comprising strobilurin fungicides and triazole fungicides |
| CN105052963A (en) * | 2015-09-08 | 2015-11-18 | 上海禾本药业股份有限公司 | Suspending agent containing pyraclostrobin and boscalid as well as preparation method and application of suspending agent |
| CN106070276A (en) * | 2016-08-25 | 2016-11-09 | 安徽美兰农业发展股份有限公司 | A kind of pyraclostrobin and Tebuconazole compound suspending agent and preparation method thereof |
| CN106508950A (en) * | 2016-11-04 | 2017-03-22 | 淄博市农业科学研究院 | Compound seed coating agent containing pyraclostrobin, tebuconazole and dinotefuran, and application thereof |
| CN109561686A (en) * | 2016-08-04 | 2019-04-02 | 江苏龙灯化学有限公司 | Synergistic fungicidal composition and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2015139564A1 (en) * | 2014-03-18 | 2015-09-24 | Rotam Agrochem International Company Limited | A fungicidal composition comprising strobilurin fungicides and triazole fungicides |
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| CN106508950A (en) * | 2016-11-04 | 2017-03-22 | 淄博市农业科学研究院 | Compound seed coating agent containing pyraclostrobin, tebuconazole and dinotefuran, and application thereof |
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