CN104273129A - Bactericidal composition containing zoxamide and picoxystrobin - Google Patents
Bactericidal composition containing zoxamide and picoxystrobin Download PDFInfo
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- CN104273129A CN104273129A CN201310602199.0A CN201310602199A CN104273129A CN 104273129 A CN104273129 A CN 104273129A CN 201310602199 A CN201310602199 A CN 201310602199A CN 104273129 A CN104273129 A CN 104273129A
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Abstract
The invention provides a bactericidal composition containing zoxamide and picoxystrobin. The bactericidal composition comprises the following components in parts by part: 1-20 parts of zoxamide, 1-20 parts of picoxystrobin and 60-98 parts of an adjuvant. The bactericidal composition containing zoxamide and picoxystrobin is used for preventing and treating fungi diseases of crops caused by oomycete; the fungi diseases of the crops comprise cucumber downy mildew, grape downy mildew and tomato late blight. The bactericidal composition containing zoxamide and picoxystrobin has good effects of preventing and treating the fungi diseases of the crops, such as the cucumber downy mildew; the two agents have obvious synergism effect; the agent amount can be reduced; the ecological destruction and environmental pollution can be effectively alleviated; the yield and the quality of the crops can be improved. According to the bactericidal composition containing zoxamide and picoxystrobin, zoxamide and picoxystrobin are low in toxicity and have no harm on human, livestock and beneficial organisms; the resistance to a single bactericide of the germs can be alleviated.
Description
Technical field
The present invention relates to Fungicidal substance technical field, be specially a kind of bactericidal composition containing zoxamide and ZEN 90160.
Background technology
Zoxamide (English common name: Zoxamide); it is a kind of protectiveness acid amide fungicides efficiently; there is the features such as lasting period length and resistance of rainwater washing against; unique to oomycetes mechanism of action, it suppresses sclerotium to divide by the combination of tubulin β-subunit and breaking of micro-cell skeleton.Travelling, sporangiocyst that zoxamide does not affect zoospore are formed or sprout.Along with caryocinetic first circulation of bacterium, the elongation of germ tube is suppressed, thus stops germ to penetrate host plant.Be mainly used in anti-oomycetes diseases as potato and tomato late blight, cucumber downy mildew, downy mildew of garpe etc., have special efficacy to downy mildew of garpe.Zoxamide also has certain preventive effect to the disease that other mycosis originals cause, and to grey mould of sweet potato, lettuce dish stalk is sick, the cercospora brown spot of peanut, and the fungal diseases such as powdery mildew all have good preventive effect.
ZEN 90160 (English common name: Picoxystrobin), molecular formula is C
18h
16f
3nO
4chemical common name is (E)-3-methoxy-2-[2-[6-(trifluoromethyl)-2-pyridine oxygen methyl] phenyl] methyl acrylate, for mitochondrial respiratory inhibitor, namely suppress mitochondrial breathing by electro transfer between cytochrome b and C1.Prevent and treat the bacterial strain of 14-demethylation enzyme inhibitor, benzamides, tri carboxylic acid amide class and benzimidazole generation resistance effective.ZEN 90160, once be absorbed by blade, will move, flow with current in transportation system in xylem; It also flows and flows in xylem again after absorption enters blade from gas phase in the gas phase of blade surface.Have good systemic activity and fumigation activity, after dispenser, active ingredient can effectively be reallocated and fully transmit, good to various crop fungal disease result for the treatment of.
Summary of the invention
When zoxamide and ZEN 90160 single dose are used alone, cause germ easily to produce resistant variant, make the reduction of the preventive effect of medicament even invalid, expand chemical control spectrum simultaneously, reduce times for spraying, the present invention proposes a kind of new type bactericide composition.Zoxamide and ZEN 90160 two kinds of active ingredients combine by the present invention, there is bactericidal activity in actual use high, and two class medicaments possess different structure types and discrepant mechanism of action, the two combination can delay pathogen pesticide resistance emergence and development to a greater extent, and dosage total in unit are is declined, thus realize goal of the invention that is economic, efficient, environmental protection.Technical problem solved by the invention is to provide a kind of bactericidal composition containing zoxamide and ZEN 90160, to solve the problem in above-mentioned technology.
Technical problem solved by the invention realizes by the following technical solutions: a kind of bactericidal composition containing zoxamide and ZEN 90160, comprise: zoxamide, ZEN 90160, adjuvant, its quality proportioning is zoxamide 1 ~ 20 part, ZEN 90160 1 ~ 20 part, adjuvant 60 ~ 98 parts.
Its quality proportioning of described bactericidal composition is zoxamide 10 parts, ZEN 90160 1 part, adjuvant 89 parts.
Its quality proportioning of described bactericidal composition is zoxamide 20 parts, ZEN 90160 4 parts, adjuvant 76 parts.
Described bactericidal composition formulation is the one in aqueous suspension agent, wetting powder, water-dispersible granules.
Described adjuvant is the one or more combination in wetting agent, dispersant, thickener, defoamer, filler.
Described wetting agent is one or more combinations in neopelex, fourth two base sodium naphthalene sulfonate, sodium lignin sulfonate, calcium lignosulfonate, alkylphenol-polyethenoxy base ether, alkylphenol-polyethenoxy base phosphate, castor oil polyoxyethylene ether.
Described dispersant is one or more combinations in neopelex, fourth two base sodium naphthalene sulfonate, sodium lignin sulfonate, calcium lignosulfonate, alkylphenol-polyethenoxy base ether, alkylphenol-polyethenoxy base phosphate, castor oil polyoxyethylene ether.
Described thickener is one or more combinations in xanthans, polyvinyl alcohol.
Described defoamer be in phosphoric acid ester defoamer and silicone defoaming agent one or more
Described filler is one or more combinations in white carbon, kaolin, attapulgite.
Described bactericidal composition, the active ingredient of preferred zoxamide and ZEN 90160 composition accounts for 10% ~ 60% of bactericidal composition gross mass, and the active ingredient of most preferred described zoxamide and ZEN 90160 composition accounts for 30% ~ 55% of bactericidal composition gross mass.
The crop fungal disease that described bactericidal composition causes for preventing and treating Oomycete, it comprises cucumber downy mildew, downy mildew of garpe, tomato late blight etc.
Compared with public technology, there is following advantage in the present invention: the present invention has good control efficiency to crop fungal diseases such as cucumber downy mildews, there is notable synergistic effect between two medicaments, can reduce dosage, effective reduction ecological disruption and environmental pollution, and crop yield and quality can be improved; In the present invention, zoxamide and ZEN 90160 all belong to the toxicity such as low, to people and animals, beneficial organism safety; The pesticide resistance of germ to single medicament can be delayed.
Embodiment
Object is reached and effect is easy to understand in order to make technological means of the present invention, creation characteristic, workflow, using method, below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Contain a bactericidal composition for zoxamide and ZEN 90160, comprise: zoxamide, ZEN 90160, adjuvant, its quality proportioning is zoxamide 1 ~ 20 part, ZEN 90160 1 ~ 20 part, adjuvant 60 ~ 98 parts.
Its quality proportioning of described bactericidal composition is zoxamide 10 parts, ZEN 90160 1 part, adjuvant 89 parts.
Its quality proportioning of described bactericidal composition is zoxamide 20 parts, ZEN 90160 4 parts, adjuvant 76 parts.
Described bactericidal composition formulation is the one in aqueous suspension agent, wetting powder, water-dispersible granules.
Described adjuvant is the one or more combination in wetting agent, dispersant, thickener, defoamer, filler.
By the careful analysis to zoxamide and ZEN 90160 sterilization idiocratic, use Wadley method to carry out experimental scheme and result treatment, first measure the EC of zoxamide and ZEN 90160 two single compound (hereinafter referred to as medicament)
50, according to the EC of two single medicaments
50set the portfolio ratio of two medicaments by Wadley method, and according to Wadley synergy index SR value, determine suitable composition ratio, then verified by the abundant method of Sun Yun.
Object of experiment is bacterium of downy mildew of cucumber (Pseudoperonospora cubensis) bacterial strain KJ-18.Rinse with the sporangium of deionized water by vacuum side of blade, preparation 1 × 10
8~ 1.5 × 10
8the suspension of individual sporangium/L, for inoculation.With deionized water above-mentioned different ratio mixed liquid be mixed with respectively concentration be 10,5,1,0.5,0.1mg/L liquid.0.1% POLYSORBATE 80 is added in liquid and deionized water.Select the potted plant cucumber plant of 5 ~ 6 true leaves, with laryngeal spray, liquid is evenly sprayed onto on plant to the drop that drips.Spray clear water as experiment contrast.Each process spray 3 strain.After blade dries, cut the basically identical blade of growing way from each process, break into the leaf dish of diameter 16mm with card punch.Be placed in culture dish by back side leaf dish upwards, adopt wet filter paper moisturizing, 15 leaf dishes placed by each culture dish.Connect the sporangia suspension of 1 10 μ L at each leaf disk center's point, be placed in 18 ~ 20 DEG C, the illumination box of 16h illumination/d cultivates 7 ~ 10d, treat the contrast morbidity " Invest, Then Investigate " state of an illness.The ratio accounting for whole leaf disc area according to product spore area divides disease level: 0 grade, anosis; 1 grade, 1% ~ 5%; 3 grades, 6% ~ 10%; 5 grades, 11% ~ 25%; 7 grades, 26% ~ 50%; 9 grades, > 50%.According to following formulae discovery disease index and relative control effect.
Experimentally result carries out the linear regression analysis between the probit value of relative control effect and log concentration value, to obtain zoxamide, ZEN 90160 and composition thereof suppress bacterium of downy mildew of cucumber to infect the virulence regression equation of cucumber leaves, obtains zoxamide, ZEN 90160 and composition thereof accordingly to bacterium of downy mildew of cucumber and calculate EC
50value and correlation coefficient r value.
According to the interaction of Wadley method evaluation mixture, computing formula is as follows:
EC
50 (theoretical values)=(a+b)/(a/EC
50a+ b/EC
50b), SR=EC
50 (theoretical values)/ EC
50 (real values).
Wherein a, b are each component content ratio in mixture, analyze the effect of mixture with SR value.SR≤0.5, then two kinds of medicament mixtures have antagonism; SR=0.5 ~ 1.5, then two kinds of medicament mixtures have addition; SR >=1.5, then two kinds of medicament mixtures have synergistic effect.
Table 1 zoxamide and ZEN 90160 single dose and mixture thereof are to toxicity test result
From table 1, data can be analyzed and obtain, and zoxamide and ZEN 90160, can compared with the growths of high inhibition bacterium of downy mildew of cucumber mycelia with 10:1 ~ 1:10 ratio mixture, and the effect of performance notable synergistic is especially obvious with synergistic effect during 10:1 ~ 5:1 ratio mixture.All the other proportionings all show summation action in various degree.
Embodiment 1
The preparation method of 42% zoxamide ZEN 90160 suspending agent: get zoxamide 40 parts, ZEN 90160 2 parts, sodium lignin sulfonate 6 parts, alkylphenol-polyethenoxy base phosphate 4 parts, xanthans 0.1 part, silicone defoaming agent 0.3 part, 47.6 parts, water by mass percentage.According to formula, above component is weighed in proportion, add ball mill ball milling 30 minutes, filter, suction dispersion tank high speed shear was fully ground through sand mill after 3 minutes, controlled solid constituent particle diameter within 2 microns, stir after grinding terminates, obtain suspending agent product.Every mu of 20-30g can reach more than 76% for preventing and treating cucumber downy mildew effect.
Embodiment 2
The preparation method of 33% zoxamide ZEN 90160 suspending agent: get zoxamide 30 parts, ZEN 90160 3 parts, calcium lignosulfonate 6 parts, castor oil polyoxyethylene ether 4 parts, polyvinyl alcohol 0.1 part, phosphate defoamer 0.3 part, 56.6 parts, water by mass percentage, according to formula, above component is weighed in proportion, add ball mill ball milling 30 minutes, filter, suction dispersion tank high speed shear was fully ground through sand mill after 3 minutes, control solid constituent particle diameter within 2 microns, stir after grinding terminates, obtain suspending agent product.Every mu of 20-30g can reach more than 80% for preventing and treating cucumber downy mildew effect.
Embodiment 3
The preparation method of 30% zoxamide ZEN 90160 suspending agent: get zoxamide 25 parts, ZEN 90160 5 parts, calcium lignosulfonate 6 parts, alkylphenol-polyethenoxy base phosphate 4 parts, xanthans 0.1 part, silicone defoaming agent 0.3 part, 59.6 parts, water by mass percentage, according to formula, above component is weighed in proportion, add ball mill ball milling 30 minutes, filter, suction dispersion tank high speed shear was fully ground through sand mill after 3 minutes, control solid constituent particle diameter within 2 microns, stir after grinding terminates, obtain suspending agent product.Every mu of 20-30g can reach more than 85% for preventing and treating cucumber downy mildew effect.
Embodiment 4
The preparation method of 10% zoxamide ZEN 90160 suspending agent: get zoxamide 5 parts, ZEN 90160 5 parts, calcium lignosulfonate 6 parts, castor oil polyoxyethylene ether 4 parts, polyvinyl alcohol 0.1 part, phosphate defoamer 0.3 part, 79.6 parts, water by mass percentage, according to formula, above component is weighed in proportion, add ball mill ball milling 30 minutes, filter, suction dispersion tank high speed shear was fully ground through sand mill after 3 minutes, control solid constituent particle diameter within 2 microns, stir after grinding terminates, obtain suspending agent product.Every mu of 80-100g can reach more than 78% for preventing and treating cucumber downy mildew effect.
Embodiment 5
The preparation method of 55% zoxamide ZEN 90160 wetting powder: get zoxamide 5 parts, ZEN 90160 50 parts, sodium dodecyl benzenylsulfonate 2 parts, sodium lignin sulfonate 4 parts, white carbon 7 parts, kaolin 16 parts, attapulgite 16 parts by mass percentage, above component is added mixer by formula rate and mixes laggard row air-flow crushing, pulverizing stirs after completing, wetting powder product.Every mu of 15-25g can reach 77% for preventing and treating cucumber downy mildew effect.
Embodiment 6
The preparation method of 21% zoxamide ZEN 90160 wetting powder: get zoxamide 1 part, ZEN 90160 20 parts, sodium dodecyl benzenylsulfonate 2 parts, sodium lignin sulfonate 4 parts, white carbon 7 parts, kaolin 33 parts, attapulgite 33 parts by mass percentage, above component is added mixer by formula rate and mixes laggard row air-flow crushing, pulverizing stirs after completing, wetting powder product.Every mu of 40-50g can reach more than 84% for preventing and treating cucumber downy mildew effect.
Embodiment 7
The preparation method of 60% zoxamide ZEN 90160 wetting powder: get zoxamide 10 parts, ZEN 90160 50 parts, calcium lignosulfonate 5 parts, polyvinyl alcohol 2.5 parts, 8 parts, ammonium sulfate, white carbon 8 parts, kaolin 16.5 parts by mass percentage,
Above component is added mixer by formula rate and mixes laggard row air-flow crushing, add a small amount of purified water after having pulverized and stir, extruder grain, after oven dry wetting powder product.Every mu of 15-25g can reach 73% for preventing and treating cucumber downy mildew effect.
Preparation is measured to cucumber downy mildew control efficiency under green house:
Experimental result is as shown in table 2: 7 preparations are executed example and all reached more than 73% to downy mildew preventive effect, execute routine 2:33% zoxamide ZEN 90160 suspending agent, execute routine 3:30% zoxamide ZEN 90160 suspending agent, execute routine 6:21% zoxamide ZEN 90160 wetting powder preventive effect and all reach more than 80%, and execute routine 3:30% zoxamide ZEN 90160 suspending agent preventive effect and be up to 85.41%.Initial data is in table 3.
Embodiment is as follows:
Trial crops cucumber, kind is: excellent No. 1 of Tianjin; Plot area 20m
2, repeat for 4 times, randomized arrangement, between each process, establish protection row.
Measure pharmaceutical preparation embodiment:
Execute example 142% zoxamide ZEN 90160 suspending agent, execute example 233% zoxamide ZEN 90160 suspending agent, the treatment dosage of embodiment 330% zoxamide ZEN 90160 suspending agent, embodiment 410% zoxamide ZEN 90160 suspending agent, embodiment 555% zoxamide ZEN 90160 wetting powder, embodiment 621% zoxamide ZEN 90160 wetting powder, embodiment 760% zoxamide ZEN 90160 wetting powder is 105gai/hm
2, contrast medicament 80% zoxamide WP treatment dosage is 30gai/hm
2, 29% ZEN 90160 suspending agent treatment dosage is 150gai/hm
2, separately establish the blank of spray clear water.Foliar spray process is carried out, dispenser 2 times, per hectare 900 liters, even spraying in cucumber downy mildew their early stage.Spraying equipment is WS-16 type knapsack hand sprayer.The investigation of cucumber downy mildew disease index is carried out, second time dispenser 7 days " Invest, Then Investigate " cucumber downy mildew incidences before chemicals treatment.
Investigation method, classification, drug effect calculate and all perform National Standard of the People's Republic of China, " farmland test of pesticide effectiveness criterion () ".
To cucumber field control effect after the dispenser of table 2 zoxamide ZEN 90160 composition secondary
To cucumber field control effectiveness test application form after the dispenser of table 3 zoxamide ZEN 90160 composition secondary
More than show and describe general principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (9)
1. contain a bactericidal composition for zoxamide and ZEN 90160, comprise: zoxamide, ZEN 90160, adjuvant, is characterized in that: its quality proportioning is zoxamide 1 ~ 20 part, ZEN 90160 1 ~ 20 part, adjuvant 60 ~ 98 parts.
2. a kind of bactericidal composition containing zoxamide and ZEN 90160 according to claim 1, is characterized in that: its quality proportioning of described bactericidal composition is zoxamide 10 parts, ZEN 90160 1 part, adjuvant 89 parts.
3. a kind of bactericidal composition containing zoxamide and ZEN 90160 according to claim 1, is characterized in that: its quality proportioning of described bactericidal composition is zoxamide 20 parts, ZEN 90160 4 parts, adjuvant 76 parts.
4. a kind of bactericidal composition containing zoxamide and ZEN 90160 according to claim 1, is characterized in that: described bactericidal composition formulation is the one in aqueous suspension agent, wetting powder, water-dispersible granules.
5. a kind of bactericidal composition containing zoxamide and ZEN 90160 according to claim 1, is characterized in that: described adjuvant is the one or more combination in wetting agent, dispersant, thickener, defoamer, filler.
6. a kind of bactericidal composition containing zoxamide and ZEN 90160 according to claim 5, is characterized in that: described wetting agent, dispersant are one or more combinations in neopelex, fourth two base sodium naphthalene sulfonate, sodium lignin sulfonate, calcium lignosulfonate, alkylphenol-polyethenoxy base ether, alkylphenol-polyethenoxy base phosphate, castor oil polyoxyethylene ether.
7. a kind of bactericidal composition containing zoxamide and ZEN 90160 according to claim 5, is characterized in that: described thickener is one or more combinations in xanthans, polyvinyl alcohol; Described defoamer be in phosphoric acid ester defoamer and silicone defoaming agent one or more; Described filler is one or more combinations in white carbon, kaolin, attapulgite.
8. a kind of bactericidal composition containing zoxamide and ZEN 90160 according to claim 5, is characterized in that: in described bactericidal composition, zoxamide and ZEN 90160 quality sum account for 10% ~ 60% of bactericidal composition gross mass.
9. a kind of bactericidal composition containing zoxamide and ZEN 90160 according to claim 5, it is characterized in that: the crop fungal disease that described bactericidal composition causes for preventing and treating Oomycete, it comprises cucumber downy mildew, downy mildew of garpe, tomato late blight.
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|---|---|---|---|
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023227884A1 (en) * | 2022-05-25 | 2023-11-30 | Upl Mauritius Limited | Fungicide composition |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101617657A (en) * | 2009-08-12 | 2010-01-06 | 深圳诺普信农化股份有限公司 | Pesticide composition |
| CN103651417A (en) * | 2012-09-11 | 2014-03-26 | 陕西美邦农药有限公司 | Bactericidal composition containing zoxamide and methoxyacrylate |
-
2013
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101617657A (en) * | 2009-08-12 | 2010-01-06 | 深圳诺普信农化股份有限公司 | Pesticide composition |
| CN103651417A (en) * | 2012-09-11 | 2014-03-26 | 陕西美邦农药有限公司 | Bactericidal composition containing zoxamide and methoxyacrylate |
Non-Patent Citations (1)
| Title |
|---|
| ANONYMOUS: "Picoxystrobin compositions", 《RESEARCH DISCLOSURE》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023227884A1 (en) * | 2022-05-25 | 2023-11-30 | Upl Mauritius Limited | Fungicide composition |
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Application publication date: 20150114 |