CN103210930A - Isopyrazam-containing sterilizing composition - Google Patents
Isopyrazam-containing sterilizing composition Download PDFInfo
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- CN103210930A CN103210930A CN2013101919663A CN201310191966A CN103210930A CN 103210930 A CN103210930 A CN 103210930A CN 2013101919663 A CN2013101919663 A CN 2013101919663A CN 201310191966 A CN201310191966 A CN 201310191966A CN 103210930 A CN103210930 A CN 103210930A
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Abstract
The invention discloses an isopyrazam-containing sterilizing composition, which is characterized in that the effective active components consist of a first active component isopyrazam, and a second active component famoxadone or fenamidone, wherein the weight ratio of the first active component to the second active component is (1:10)-(8:1), preferably (1:8)-(5:1). The isopyrazam-containing sterilizing composition can be prepared into agriculturally permissible water dispersible granule, wettable powder or suspending agent. The isopyrazam-containing sterilizing composition has the beneficial effects that the composition is reasonable, the sterilizing effect is good, the activity and sterilizing effect is not a simple summary of the activity of each component; and compared with the existing unitary formulation, in addition to remarkable sterilizing effect, the isopyrazam-containing sterilizing composition also has prominent synergism, is very safe to crops, conforms to the safety requirement of pesticide preparation, and has remarkable preventing and treating effect on crop powdery mildew.
Description
Technical field
The present invention relates to a kind of bactericidal composition that contains pyrazoles naphthalene bacterium amine, active component becomes to divide oxazole bacterium ketone or Fenamidone to form by the first active component pyrazoles naphthalene bacterium amine and the 2nd property alive, belongs to technical field of compounded pesticide.
Background technology
Pyrazoles naphthalene bacterium amine, English common name isopyrazam, chemical name: the 3-(methyl fluoride)-and 1-methyl-N-[1,2,3,4-tetrahydrochysene-9-isopropyl-1,4-methylene-5-yl]-pyrazole-4-carboxamide.Pyrazoles naphthalene bacterium amine is the mitochondrial respiratory inhibitor, and the growth of cause of disease spore-germination, germ tube and the formation of absorber are had stronger inhibitory action, fungi is had the effect that suppresses mycelial growth and sporulation.
Oxazole bacterium ketone, other Chinese names: easily protect, English common name: famoxadone, chemical name: 3-phenylamino-5-methyl-5-(4-Phenoxyphenyl)-1,3-azoles quinoline-2, the 4-diketone is new and effective, wide-spectrum bactericide. suitable crop such as wheat, barley, rape, grape, potato, pawl class, capsicum, tomatoes etc. are mainly used in the important disease of preventing and treating in Ascomycetes, Basidiomycetes, the oomycetes subclass such as powdery mildew, rust, glume blight, net blotch, downy mildew, late blight etc.
Fenamidone, English common name: fenamidone, chemical name: (S)-1-anilino--4-methyl-2-methyl mercapto-4-benzylimidazoline-5-ketone, be bactericide by the imidazolines of Beyer Co., Ltd's exploitation, downy mildew, late blight, phytophthora root rot, the damping off that can prevent and treat crops such as wheat, cotton, grape, tobacco, potato, tomato.
Powdery mildew is the important disease that generally takes place on the crops such as wheat, melon beans, strawberry, flowers, grape, apple, often causes very big loss.
Summary of the invention
The object of the present invention is to provide a kind of component reasonable, synergistic effect is remarkable, and bactericidal effect is good, and drug cost is low, to the agricultural bactericidal composition of crop safety.
Another object of the present invention is to provide the application of above-mentioned composition on the control crop powdery mildew.
In order to overcome the defective of existing unitary agent, technical scheme of the present invention is to solve like this:
A kind of bactericidal composition that contains pyrazoles naphthalene bacterium amine, its active component is:
(1) first active component pyrazoles naphthalene bacterium amine;
(2) the 2nd property one-tenth alive divide oxazole bacterium ketone or Fenamidone;
The weight ratio of first active component and second active component is that 1:10～8:1 is preferably 1:8～5:1, most preferably is 1:5～2:1.
The content sum of first active component and second active component is 5%～80% of a described composition total weight in the above-mentioned bactericidal composition, is preferably 10%～70%.
Bactericidal composition formulation of the present invention is water dispersible granules, wetting powder or suspending agent, can be used for preventing and treating crop powdery mildew, as apple mildew, powdery mildew of cucumber or wheat powdery mildew.
For water dispersible granules, those skilled in the art are familiar with the use corresponding adjuvants and finish the present invention very much.In dispersant such as polycarboxylate, lignosulfonates, the alkylnaphthalene sulfonate one or more; In wetting agent such as alkyl sulfate, alkylsulfonate, the naphthalene sulfonate one or more; In disintegrant such as ammonium sulfate, urea, sucrose, the glucose one or more; In binding agent such as diatomite, corn starch, PVA, carboxymethyl (ethyl) cellulose family one or more; Filler such as diatomite, kaolin, white carbon, fine particle calcium carbonate, talcum powder, attapulgite, potter's clay one or more.
To wetting powder, spendable auxiliary agent has: in dispersant such as polycarboxylate, lignosulfonates, the alkylnaphthalene sulfonate one or more; In wetting agent such as alkyl sulfate, alkylsulfonate, the naphthalene sulfonate one or more; Filler such as ammonium sulfate, urea, sucrose, glucose, diatomite, kaolin, white carbon, fine particle calcium carbonate, talcum powder, attapulgite, potter's clay one or more.
To suspending agent, spendable auxiliary agent has: dispersant such as polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate (dispersing agent NNO), TERSPERSE 2020(U.S. Huntsman Corporation produce the alkyl naphthalene sulfonic acid salt) in one or more; The polyoxyethylene sorbitan stearate), agricultural newborn 1601#(common name Span60), Tween-60 #(common name alkyl phenol formaldehyde resin polyoxyethylene ether), farming breast 2201, this dish-60#(common name emulsifier such as Nongru-700 #(common name:::: triphen ethyl-phenol polyoxyethylene polyoxypropylene block polymer), TERSPERSE 4894(U.S. Huntsman Corporation produces) in one or more; Wetting agent such as alkylphenol-polyethenoxy base ether formaldehyde condensation products sulphate, alkylphenol-polyethenoxy base ether phosphate, phenethyl phenol polyethenoxy base ether phosphate, alkyl sulfate, alkylsulfonate, naphthalene sulfonate, TERSPERSE 2500(U.S. Huntsman Corporation produce) in one or more; In thickener such as xanthans, polyvinyl alcohol, bentonite, the aluminium-magnesium silicate one or more; In preservative such as formaldehyde, benzoic acid, the Sodium Benzoate one or more; In stabilizing agent such as epoxidized soybean oil, epoxychloropropane, the triphenyl phosphate one or more; Defoamer such as organic silicon defoamer; In antifreezing agent such as ethylene glycol, propane diols, glycerine, urea, inorganic salts such as the sodium chloride one or more; Water is deionized water.
Understand according to the inventor; also do not have pyrazoles naphthalene bacterium An at present and prevent and treat the bibliographical information of crop powdery mildew with oxazole bacterium ketone or Fenamidone are mixed; inventor pyrazoles naphthalene bacterium An that the mechanism of action is different is with oxazole bacterium ketone or Fenamidone are composite; have significant synergies; can significantly improve control efficiency, the minimizing dosage of treatment, protection; reduce the control cost, to the crop safety height.
Component of the present invention is reasonable, and treatment adds protective effect, and bactericidal effect is good, and drug cost is low, and its active and bactericidal effect is not the simple superposition of each composition activity, but significant synergistic effect is arranged, and is good to crop safety, meets the security requirement of pesticidal preparations.The present invention has the better prevention effect to crop powdery mildew.
Embodiment
In order to prevent and treat the apple mildew of agricultural production, Shanggezhilu Biosciences Co., Ltd., Shaanxi with pyrazoles naphthalene bacterium amine respectively Yu oxazole bacterium ketone, Fenamidone carried out compound synergic research, concrete grammar is:
Subjects is apple mildew bacterium ［ Podosphaera leucotricha (EII.et Ev.) Salm. ］.Former medicine is mixed with the test medicine that needs.At first single agent and each Mixed Pharmacy are provided with 5 variable concentrations gradients (on preliminary experiment result's basis, preventive effect is set by geometric progression) in 5%～90% scope.Every concentration is handled 4 basin apple seedlings, and contrast spray clear water repeats 4 times.Test is carried out in the booth of temperature (20 ± 5) ℃, relative moisture (60 ± 10) %.At first, the apple mildew pathogen is inoculated in the booth on the susceptible kind Qiao Na golden apple seedling, it is some to win the sick leaf of typical apple mildew after rejuvenation a period of time, under aseptic condition, grind with mortar, behind aseptic water washing, under (25 ± 2) ℃ condition, placed 3 hours, add an amount of sterile water, filter the back microscopy, make conidium number in each visual field about 60, select healthy and strong neat potted plant Qiao Na golden apple seedling then, with above-mentioned conidium liquid evenly spray be distributed in the positive and negative of apple leaf, continuous inoculation 3 times was carried out chemical control after 2 days.When fully fall ill all blades of the every strain apple seedling of " Invest, Then Investigate " of contrast apple seedling, by following grade scale investigation apple mildew blade occurring degree:
0 grade, anosis;
1 grade, scab accounts for below 1% of blade area;
3 grades, scab accounts for 2%～5% of blade area;
5 grades, scab accounts for 6%～20% of blade area;
7 grades, scab accounts for 21%～40% of blade area;
9 grades, scab accounts for more than 40% of blade area.
Computational methods:
Disease index=[∑ (the sick numbers of sheets at different levels * relative level numerical value)/(investigation total leaf number * 9)] * 100
Control efficiency (%)=[(contrast disease index-processing disease index)/contrast disease index] * 100
The EC of each medicament is obtained in linear regression analysis between the probit value by preventive effect and the logarithm value of series concentration
50Value with the co-toxicity coefficient (CTC) of the abundant method calculating of Sun Yun mixture, is estimated the activity of reagent agent to germ with this.
The co-toxicity coefficient of complex preparation (CTC) 〉=120 shows as synergistic effect; CTC≤80 show as antagonism; 80＜CTC＜120 show as summation action.
Toxicity Determination result shows: pyrazoles naphthalene bacterium An all has synergistic effect preferably Yu oxazole bacterium ketone or Fenamidone are 1:10～8:1 with the weight ratio uses with the apple mildew bacterium is had virulence preferably, is that 1:8～5:1 synergy is the most remarkable especially with the weight ratio.
In order to prevent and treat the powdery mildew of cucumber of agricultural production, Yu oxazole bacterium ketone, Fenamidone have carried out mutual composite synergy research, concrete grammar is with pyrazoles naphthalene bacterium An in Shanggezhilu Biosciences Co., Ltd., Shaanxi:
Subjects is powdery mildew of cucumber bacterium sphaerotheca fuliginea.Former medicine is mixed with the test medicine that needs, and test method is with reference to " the agricultural industry criteria NY/T1156.11-2008 of People's Republic of China (PRC) agricultural chemicals indoor bioassay test rule bactericide the 11st part: control cucurbits powdery mildew test pot-culture method ".At first single agent and each Mixed Pharmacy are provided with 5 variable concentrations gradients (preventive effect is set by geometric progression) in 5%～90% scope.With the pure water that is added with low quantity of surfactant (Tween 80), wash and get the fresh spore that covers with on the white powder germ cucumber leaves, filter with double gauze, make the suspension that spore concentration is 1 * 105 spore/milliliter, standby.Every processing 3 basins repeat for 4 times, and establish the processing that only contains solvent and surfactant and do not contain effective composition and make blank.With spore suspension 24 h inoculation before chemicals treatment, soup is evenly sprayed in the blade face to all wetting, treat behind the soup natural air drying standby.Potted plant cucumber natural air drying after inoculation and the chemicals treatment moves to thermostatic chamber then, cultivates 7 days～10 days under the condition of 20 ℃～24 ℃ of temperature.Treat that the sick leaf rate of blank reaches 80% when above, the classification investigation state of an illness condition of getting a haircut everywhere, 30 leaves are investigated in every processing at least, and grade scale is:
0 grade: anosis;
1 grade: lesion area accounts for below 5% of one-piece blade area;
3 grades: lesion area accounts for 6%～15% of one-piece blade area;
5 grades: lesion area accounts for 16%～25% of one-piece blade area;
7 grades: lesion area accounts for 26%～50% of one-piece blade area;
9 grades: lesion area accounts for 50%～75% of one-piece blade area;
11 grades: lesion area accounts for more than 75% of one-piece blade area.
Computational methods:
Disease index=[∑ (the sick numbers of sheets at different levels * relative level numerical value)/(investigation total leaf number * 11)] * 100
Control efficiency (%)=[(contrast disease index-processing disease index)/contrast disease index] * 100
The EC of each medicament is obtained in linear regression analysis between the probit value by preventive effect and the logarithm value of series concentration
50Value with the co-toxicity coefficient (CTC) of the abundant method calculating of Sun Yun mixture, is estimated the activity of reagent agent to germ with this.
The co-toxicity coefficient of complex preparation (CTC) 〉=120 shows as synergistic effect; CTC≤80 show as antagonism; 80＜CTC＜120 show as summation action.
Toxicity Determination result shows: pyrazoles naphthalene bacterium An all has synergistic effect preferably Yu oxazole bacterium ketone, Fenamidone are 1:10～8:1 with the weight ratio uses with the powdery mildew of cucumber bacterium is had virulence preferably, is that 1:8～5:1 synergy is the most remarkable especially with the weight ratio.
Below in conjunction with embodiment content of the present invention is described further.
Example of formulations 1
Take by weighing 20% pyrazoles naphthalene bacterium amine, 60% oxazole bacterium ketone, 1% TERSPERSE 2700(polycarboxylate, U.S. Huntsman Corporation produces), 1% dispersing agent NNO, 1% Nekal BX (nekal), 1%K-12,1% carboxymethyl cellulose, diatomite add to 100% weight portion.The method of the frequent regulation of above-mentioned raw materials water intaking dispersible granule is promptly mixed, ultra micro comminution by gas stream, mixing, granulation step are produced 80% pyrazoles naphthalene Jun An oxazole bacterium ketone water dispersible granules.
Example of formulations 2
40% pyrazoles naphthalene bacterium amine, 5% Fenamidone, 4% TERSPERSE 2700,2% dispersing agent NNO, 2% Nekal BX, 2% K-12,3% corn starch, 5% sulphur ammonium, attapulgite add to 100% weight portion.Above-mentioned raw materials is produced 45% pyrazoles naphthalene bacterium amine Fenamidone water dispersible granules through mixing, ultra micro comminution by gas stream, mixing, granulation step.
Example of formulations 3
Take by weighing 10% pyrazoles naphthalene bacterium amine, 20% oxazole bacterium ketone, 4% calcium lignosulfonate, 3% TERSPERSE 2700,2% Nekal BX, 2%K-12,3% white carbon black, fine particle calcium carbonate and add to 100% weight portion.Above-mentioned raw materials makes 30% pyrazoles naphthalene Jun An oxazole bacterium ketone wetting powder through mixing behind the comminution by gas stream.
Example of formulations 4
Take by weighing 5% pyrazoles naphthalene bacterium amine, 50% Fenamidone, 4% calcium lignosulfonate, 4% dispersing agent NNO, 2% Nekal BX, 2%K-12,3% white carbon black, attapulgite and add to 100% weight portion.Above-mentioned raw materials makes 55% pyrazoles naphthalene bacterium amine Fenamidone wetting powder through mixing behind the comminution by gas stream.
Example of formulations 5
Take by weighing 2% pyrazoles naphthalene bacterium amine, 3% oxazole bacterium ketone, 4%TERSPERSE 4894,1.5%TERSPERSE 2500,2%TERSPERSE 2020,1% aluminium-magnesium silicate, 0.2% xanthans, 5% ethylene glycol, 0.5% formaldehyde, 0.5% silicone defoaming agent, 2% triphenyl phosphate, deionized water and add to 100% weight portion.Above-mentioned raw materials is through mixing, and high speed shear is disperseed 30min, with making 5% pyrazoles naphthalene Jun An oxazole bacterium ketone suspending agent behind the sand mill sand milling.
Example of formulations 6
Take by weighing 10% pyrazoles naphthalene bacterium amine, 10% Fenamidone, 2%TERSPERSE 2020,2% this dish-60#, 2% Tween-60 #, 1%TERSPERSE 2500,0.5% white carbon, 0.3% xanthans, 5% ethylene glycol, 0.5% benzoic acid, 0.5% silicone defoaming agent, 1% epoxychloropropane, deionized water and add to 100% weight portion.Above-mentioned raw materials is through mixing, and high speed shear is disperseed 30min, with making 20% pyrazoles naphthalene bacterium amine Fenamidone suspending agent behind the sand mill sand milling.
Biological Examples: control wheat powdery mildew field trial
Carried out example of formulations 3(30% pyrazoles naphthalene Jun An oxazole bacterium ketone wetting powder at Shaanxi Province's Hanzhong City in 2012), example of formulations 6(20% pyrazoles naphthalene bacterium amine Fenamidone suspending agent) control wheat powdery mildew field trial, verified that these two kinds of medicaments are to the control efficiency of wheat powdery mildew and to the safety of wheat.Trial crops is a wheat, and controlling object is wheat powdery mildew (Blumeria graminis).Test is located at the Hanzhong City Yang County, and the experimental field physical features is smooth, and soil is loam, and fertility is better-than-average, pH value 7.0, and the duration of test rich water quality management is medium.Test medicine and dosage are for seeing table 3 for details.Other establishes blank, and every processing 4 times repeats, every sub-district 30 ㎡, and totally 24 sub-districts, district's group is arranged at random.Adopt conventional spray-on process, mu dispenser liquid 50kg evenly is sprayed at leave dual sides.Prevent and treat 1 time at wheat booting period and each spraying of flowering initial stage, dispenser is 2 times altogether.
Investigation and statistical method were respectively investigated 1 time, and were investigated altogether 2 times in the 7th day and the 14th day after the 2nd dispenser.Adopt five point samplings at random, get 20 strains at every, investigate last 3 leaves (having boot leaf then to comprise boot leaf) of every strain, write down total number of sheets, the sick number of sheets, sick leaf rate,, put down in writing the sick numbers of sheets at different levels, calculate disease index and preventive effect according to 9 grades of grade scales of wheat powdery mildew.Behind each spray medicine behind the 1st day and the medicine some days, each handled influence to fruit and blade to observe medicament.
The wheat powdery mildew grade scale:
0 grade: no scab;
1 grade: lesion area accounts for below 5% of whole leaf area;
3 grades: lesion area accounts for the 6%-15% of whole leaf area;
5 grades: lesion area accounts for the 16%-25% of whole leaf area;
7 grades: lesion area accounts for the 26%-50% of whole leaf area;
9 grades: lesion area accounts for more than 51% of whole leaf area.
Calculate disease index and control efficiency according to the record incidence.
Disease index=[∑ (the sick numbers of sheets at different levels * relative level numerical value)/(investigation total leaf number * 9)] * 100
Control efficiency (%)=[(contrast disease index-processing disease index)/contrast disease index] * 100.
Field test results shows, 30% pyrazoles naphthalene Jun An oxazole bacterium ketone wetting powder, 20% pyrazoles naphthalene bacterium amine Fenamidone suspending agent has good control efficiency to wheat powdery mildew, press 30g/667 ㎡ respectively, 40g/667 ㎡ consumption, to wheat powdery mildew for the second time behind the medicine 7 days preventive effect be 82.56%, 85.40%, the 14th day preventive effect is 89.02%, 92.02%, obviously be better than 20% pyrazoles naphthalene bacterium amine suspending agent 50g/667 ㎡, 20% oxazole bacterium ketone missible oil 50g/667 ㎡, the preventive effect of 20% Fenamidone suspending agent 50g/667 ㎡, 14 days preventive effects behind the medicine are carried out the biostatistics analysis, and the preventive effect difference of two kinds of mixture preparations and three kinds of single agent is extremely remarkable.
To the security survey of wheat, to observe in some days behind the 1st day and the medicine behind the spray medicine, each test is handled not to be had the poisoning phenomenon to blade, flower, fringe and takes place.Result of the test shows pyrazoles naphthalene bacterium An Yu oxazole bacterium ketone, Fenamidone have obviously improved the control efficiency to wheat powdery mildew after being mixed, and to wheat growth safety, is the desirable medicament of control wheat powdery mildew.
In sum, composition of the present invention is to adopt two kinds of active component compound schemes, its activity and bactericidal effect are not the simple superposition of each composition activity, compare with existing unitary agent, except that having significant bactericidal effect, and significant synergistic effect is arranged, and good to crop safety, meet the security requirement of pesticidal preparations.
Claims (8)
1. bactericidal composition that contains pyrazoles naphthalene bacterium amine is characterized in that active component is:
(1) first active component pyrazoles naphthalene bacterium amine;
(2) the 2nd property one-tenth alive divide oxazole bacterium ketone or Fenamidone;
The weight ratio of first active component and second active component is 1:10～8:1.
2. according to the described bactericidal composition that contains pyrazoles naphthalene bacterium amine of claim 1, it is characterized in that: the weight ratio of first active component and second active component is 1:8～5:1.
3. according to the described bactericidal composition that contains pyrazoles naphthalene bacterium amine of claim 2, it is characterized in that: the weight ratio of first active component and second active component is 1:5～2:1.
4. according to the described bactericidal composition that contains pyrazoles naphthalene bacterium amine of claim 1, it is characterized in that: the content sum of first active component and second active component is 5%～80% of a described composition total weight.
5. according to the described bactericidal composition that contains pyrazoles naphthalene bacterium amine of claim 4, it is characterized in that: the content sum of first active component and second active component is 10%～70% of a described composition total weight.
6. according to the described bactericidal composition that contains pyrazoles naphthalene bacterium amine of claim 1, it is characterized in that: described combination dosage form is water dispersible granules, wetting powder or suspending agent.
7. the purposes of the described bactericidal composition that contains pyrazoles naphthalene bacterium amine of claim 1 in the control crop powdery mildew.
8. according to the described purposes of claim 7, described crop powdery mildew is apple mildew, powdery mildew of cucumber or wheat powdery mildew.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1705668A (en) * | 2002-10-18 | 2005-12-07 | 辛根塔参与股份公司 | Heterocyclocarboxamide derivatives |
| CN101035432A (en) * | 2004-10-08 | 2007-09-12 | 辛根塔参与股份公司 | Fungicidal compositions |
| WO2012076470A1 (en) * | 2010-12-09 | 2012-06-14 | Bayer Cropscience Ag | Pesticidal mixtures with improved properties |
| CN102771502A (en) * | 2012-07-30 | 2012-11-14 | 陕西上格之路生物科学有限公司 | Sterilizing composition containing js399-19 and amide fungicide |
-
2013
- 2013-05-23 CN CN201310191966.3A patent/CN103210930B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1705668A (en) * | 2002-10-18 | 2005-12-07 | 辛根塔参与股份公司 | Heterocyclocarboxamide derivatives |
| CN100448876C (en) * | 2002-10-18 | 2009-01-07 | 辛根塔参与股份公司 | Heterocyclocarboxamide derivatives |
| CN101035432A (en) * | 2004-10-08 | 2007-09-12 | 辛根塔参与股份公司 | Fungicidal compositions |
| WO2012076470A1 (en) * | 2010-12-09 | 2012-06-14 | Bayer Cropscience Ag | Pesticidal mixtures with improved properties |
| CN102771502A (en) * | 2012-07-30 | 2012-11-14 | 陕西上格之路生物科学有限公司 | Sterilizing composition containing js399-19 and amide fungicide |
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