CN103210930B - Isopyrazam-containing sterilizing composition - Google Patents
Isopyrazam-containing sterilizing composition Download PDFInfo
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- CN103210930B CN103210930B CN201310191966.3A CN201310191966A CN103210930B CN 103210930 B CN103210930 B CN 103210930B CN 201310191966 A CN201310191966 A CN 201310191966A CN 103210930 B CN103210930 B CN 103210930B
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- pyrazoles naphthalene
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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 containing pyrazoles naphthalene bacterium amine, active component becomes point famoxadone 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: 3-(difluoromethyl)-1-methyl-
n-[1,2,3,4-tetrahydrochysene-9-(1-Methylethyl)-Isosorbide-5-Nitrae-methanonaphthalene-5-yl]-1
h-pyrazole-4-carboxamide.Pyrazoles naphthalene bacterium amine is mitochondrial respiratory inhibitor, and Spores germination, the growth of germ tube and the formation of absorber are had to stronger inhibitory action, fungi is had to the effect that suppresses mycelial growth and sporulation.
Famoxadone, other Chinese names: Yi Bao, English common name: famoxadone, chemical name: 3-phenylamino-5-methyl-5-(4-Phenoxyphenyl)-1,3-azoles quinoline-2,4-diketone, is new and effective, wide-spectrum bactericide. suitable crop is as wheat, barley, rape, grape, potato, pawl class, capsicum, tomatoes etc., are mainly used in preventing and treating important disease in Ascomycetes, Basidiomycetes, oomycetes subclass 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, the bactericide of the imidazolines developed by Beyer Co., Ltd, downy mildew, late blight, phytophthora root rot, the damping off that can prevent and treat the crops such as wheat, cotton, grape, tobacco, potato, tomato.
Powdery mildew is the important disease generally occurring on the crops such as wheat, melon beans, strawberry, flowers, grape, apple, often causes very large 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 control crop powdery mildew.
In order to overcome the defect of existing unitary agent, technical scheme of the present invention is to solve like this:
Containing a bactericidal composition for pyrazoles naphthalene bacterium amine, its active component is:
(1) first active component pyrazoles naphthalene bacterium amine;
(2) the 2nd property alive become point famoxadone or a Fenamidone;
The weight ratio of the first active component and the second active component is that 1:10～8:1 is preferably 1:8～5:1, most preferably is 1:5～2:1.
In above-mentioned bactericidal composition, the content sum of the first active component and the second active component is described composition total weight 5%～80%, 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 corresponding auxiliary agent of use and complete the present invention very much.Dispersant as in polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate one or more; Wetting agent as in alkyl sulfate, alkylsulfonate, naphthalene sulfonate one or more; Disintegrant as in ammonium sulfate, urea, sucrose, glucose one or more; Binding agent is as one or more in diatomite, corn starch, PVA, carboxymethyl (ethyl) cellulose family; Filler 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: dispersant as in polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate one or more; Wetting agent as in alkyl sulfate, alkylsulfonate, naphthalene sulfonate one or more; Filler 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 is produced as polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate (dispersing agent NNO), Huntsman Corporation of the TERSPERSE 2020(U.S., alkyl naphthalene sulfonic acid salt) in one or more; Emulsifier is as Nongru-700 #(common name: alkyl phenol formaldehyde resin polyoxyethylene ether), agriculture breast 2201, this dish-60#(common name: Span60), Tween-60 #(common name: polyoxyethylene sorbitan stearate), agriculture breast 1601#(common name: triphen ethyl-phenol polyoxyethylene polyoxypropylene block polymer), Huntsman Corporation of the TERSPERSE 4894(U.S. produces) in one or more; Wetting agent is produced 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, Huntsman Corporation of the TERSPERSE 2500(U.S.) in one or more; Thickener as in xanthans, polyvinyl alcohol, bentonite, aluminium-magnesium silicate one or more; Preservative as in formaldehyde, benzoic acid, Sodium Benzoate one or more; Stabilizing agent as in epoxidized soybean oil, epoxychloropropane, triphenyl phosphate one or more; Defoamer is as organic silicon defoamer; Antifreezing agent as ethylene glycol, propane diols, glycerine, urea, inorganic salts as in sodium chloride one or more; Water is deionized water.
Understand according to inventor; also there is no pyrazoles naphthalene bacterium An at present with the bibliographical information of famoxadone or Fenamidone mixture control crop powdery mildew; inventor by pyrazoles naphthalene bacterium the An different mechanism of action with famoxadone or Fenamidone are composite; have significant synergies; can significantly improve control efficiency, the minimizing dosage for the treatment of, protection; reduce cost accounting, high to crop safety.
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 has significant synergistic effect, good to crop safety, meets the security requirement of pesticidal preparations.The present invention has good control efficiency 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 famoxadone, 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 to the test medicine needing.First single dose and each Mixed Pharmacy are arranged to 5 variable concentrations gradients (on the basis of preliminary experiment result, preventive effect is set by geometric progression in 5%～90% scope).Every concentration is processed 4 basin apple seedlings, and contrast spray clear water, repeats 4 times.Test is carried out in the booth of temperature (20 ± 5) DEG C, relative moisture (60 ± 10) %.First, apple mildew pathogen is inoculated in booth on susceptible kind Qiao Na golden apple seedling, after rejuvenation a period of time, win the sick leaf of typical apple mildew some, under aseptic condition, grind with mortar, with after aseptic water washing, under (25 ± 2) DEG C condition, place 3 hours, add appropriate sterile water, microscopy after filtering, make conidium number in each visual field 60 left and right, then select healthy and strong neat potted plant Qiao Na golden apple seedling, by the even spraying of above-mentioned conidium liquid in the positive and negative of apple leaf, continuous inoculation 3 times, 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, investigate apple mildew blade occurring degree by following grade scale:
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 the more than 40% of blade area.
Computational methods:
Disease index=[∑ (the sick number of sheets × relative level numerical value at different levels)/(investigation total leaf number × 9)] × 100
Control efficiency (%)=[(contrast disease index-processing disease index)/contrast disease index] × 100
By the linear regression analysis between the probit value of preventive effect and the logarithm value of series concentration, obtain the EC of each medicament
50value, with the co-toxicity coefficient (CTC) of the abundant method calculating of Sun Yun mixture, evaluates the activity of reagent agent to germ with this.
The co-toxicity coefficient (CTC) >=120 of complex preparation shows as synergistic effect; CTC≤80 show as antagonism; 80 < CTC < 120 show as summation action.
Toxicity Determination result shows: pyrazoles naphthalene bacterium An has good virulence as 1:10～8:1 is mixed to apple mildew bacterium taking weight ratio Yu famoxadone or Fenamidone, all has good synergistic effect, especially taking weight ratio as 1:8～5:1 synergy the most remarkable.
In order to prevent and treat the powdery mildew of cucumber of agricultural production, Shanggezhilu Biosciences Co., Ltd., Shaanxi is with pyrazoles naphthalene bacterium An Yu famoxadone, Fenamidone have carried out mutual composite synergy research, and concrete grammar is:
Subjects is powdery mildew of cucumber bacterium sphaerotheca fuliginea.Former medicine is mixed with to the test medicine needing, test method is with reference to " the agricultural industry criteria NY/T1156.11-2008 of People's Republic of China (PRC) farm-chemical indoor determination test rule bactericide the 11st part: control cucurbits powdery mildew test pot-culture method ".First single dose and each Mixed Pharmacy are arranged to 5 variable concentrations gradients (preventive effect is set by geometric progression in 5%～90% scope).With the pure water that is added with a small amount of surfactant (Tween 80), wash and get the fresh spore covering with on Powdery Mildew cucumber leaves, with double gauze filtration, make the suspension that spore concentration is 1 × 105 spore/milliliter, for subsequent use.Every processing 3 basins, repeat for 4 times, and only establish the processing that does not contain active ingredient containing solvent and surfactant and make blank.With spore suspension 24 h inoculations before chemicals treatment, liquid is evenly sprayed in blade face to all wetting, for subsequent use after liquid natural air drying.Potted plant cucumber natural air drying after inoculation and chemicals treatment, then moves to thermostatic chamber, under the condition of 20 DEG C～24 DEG C of temperature, cultivates 7 days～10 days.Reach 80% when above until the sick leaf rate of blank, classification investigation is managed incidence everywhere, and 30 leaves are at least investigated in every processing, 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 the more than 75% of one-piece blade area.
Computational methods:
Disease index=[∑ (the sick number of sheets × relative level numerical value at different levels)/(investigation total leaf number × 11)] × 100
Control efficiency (%)=[(contrast disease index-processing disease index)/contrast disease index] × 100
By the linear regression analysis between the probit value of preventive effect and the logarithm value of series concentration, obtain the EC of each medicament
50value, with the co-toxicity coefficient (CTC) of the abundant method calculating of Sun Yun mixture, evaluates the activity of reagent agent to germ with this.
The co-toxicity coefficient (CTC) >=120 of complex preparation shows as synergistic effect; CTC≤80 show as antagonism; 80 < CTC < 120 show as summation action.
Toxicity Determination result shows: pyrazoles naphthalene bacterium An has good virulence as 1:10～8:1 is mixed to powdery mildew of cucumber bacterium taking weight ratio Yu famoxadone, Fenamidone, all has good synergistic effect, especially taking weight ratio as 1:8～5:1 synergy the most remarkable.
Below in conjunction with embodiment, content of the present invention is described further.
Example of formulations 1
Take 20% pyrazoles naphthalene bacterium amine, 60% famoxadone, 1% TERSPERSE 2700(polycarboxylate, Huntsman Corporation of the U.S. 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 mixes, ultra micro air-flow crushing, mixing, granulation step are produced 80% pyrazoles naphthalene Jun An famoxadone 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 air-flow crushing, mixing, granulation step.
Example of formulations 3
Take 10% pyrazoles naphthalene bacterium amine, 20% famoxadone, 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, through mixing, makes 30% pyrazoles naphthalene Jun An famoxadone wetting powder after air-flow crushing.
Example of formulations 4
Take 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, through mixing, makes 55% pyrazoles naphthalene bacterium amine Fenamidone wetting powder after air-flow crushing.
Example of formulations 5
Take 2% pyrazoles naphthalene bacterium amine, 3% famoxadone, 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 famoxadone suspending agent after sand mill sand milling.
Example of formulations 6
Take 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 after sand mill sand milling.
Biological Examples: control wheat powdery mildew field trial
Within 2012, carried out example of formulations 3(30% pyrazoles naphthalene Jun An famoxadone wetting powder at Shaanxi Province's Hanzhong City), example of formulations 6(20% pyrazoles naphthalene bacterium amine Fenamidone suspending agent) control wheat powdery mildew field trial, verified this control efficiency of two kinds of medicaments to wheat powdery mildew and safety to wheat.Trial crops is wheat, and controlling object is wheat powdery mildew (Blumeria graminis).Test is located at Hanzhong City Yang County, and experimental field physical features is smooth, and soil is loam, and fertility is better-than-average, pH value 7.0, and duration of test rich water quality management is medium.Test medicine and dosage are for referring to table 3.Separately establish blank, every processing repeats for 4 times, every community 30 ㎡, and Gong24Ge community, random district group is arranged.Adopt conventional spray-on process, mu dispenser liquid 50kg, is evenly sprayed at leave dual sides.Prevent and treat 1 time dispenser 2 times altogether at wheat booting period and the each spraying of flowering initial stage.
Investigation and statistical method, the 7th day and the 14th day each investigation 1 time after the 2nd dispenser, investigate 2 times altogether.Adopt random five point samplings, get 20 strains at every, investigate upper 3 leaves (having boot leaf to comprise boot leaf) of every strain, record total number of sheets, the sick number of sheets, sick leaf rate, according to 9 grades of grade scales of wheat powdery mildew, record the sick numbers of sheets at different levels, calculate disease index and preventive effect.After each spray medicine after the 1st day and medicine some days, observe medicament and respectively process the impact on fruit and blade.
Wheat powdery mildew grade scale:
0 grade: without 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 the more than 51% of whole leaf area.
Calculate disease index and control efficiency according to recording incidence.
Disease index=[∑ (the sick number of sheets × relative level numerical value at different levels)/(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 famoxadone wetting powder, 20% pyrazoles naphthalene bacterium amine Fenamidone suspending agent has good control efficiency to wheat powdery mildew, press respectively 30g/667 ㎡, 40g/667 ㎡ consumption, to wheat powdery mildew for the second time after medicine the preventive effect of 7 days be 82.56%, 85.40%, the preventive effect of the 14th day is 89.02%, 92.02%, obviously be better than 20% pyrazoles naphthalene bacterium amine suspending agent 50g/667 ㎡, 20% famoxadone missible oil 50g/667 ㎡, the preventive effect of 20% Fenamidone suspending agent 50g/667 ㎡, 14 days preventive effects after medicine are carried out to biostatistics Epidemiological Analysis, the preventive effect difference of two kinds of mixture preparations and three kinds of single doses is extremely remarkable.
To the security survey of wheat, within after spray medicine after the 1st day and medicine some days, to observe, each test is processed blade, flower, fringe is occurred without poisoning phenomenon.Result of the test shows pyrazoles naphthalene bacterium An Yu obviously improved the control efficiency to wheat powdery mildew after famoxadone, Fenamidone mixture, 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, compared with existing unitary agent, except having significant bactericidal effect, and have significant synergistic effect, and good to crop safety, meet the security requirement of pesticidal preparations.
Claims (8)
1. containing a bactericidal composition for pyrazoles naphthalene bacterium amine, it is characterized in that active component is:
(1) first active component pyrazoles naphthalene bacterium amine;
(2) the 2nd property alive become point famoxadone or a Fenamidone;
The weight ratio of the first active component and the second active component is 1:10～8:1.
2. according to claim 1 containing the bactericidal composition of pyrazoles naphthalene bacterium amine, it is characterized in that: the weight ratio of the first active component and the second active component is 1:8～5:1.
3. according to claim 2 containing the bactericidal composition of pyrazoles naphthalene bacterium amine, it is characterized in that: the weight ratio of the first active component and the second active component is 1:5～2:1.
4. according to claim 1 containing the bactericidal composition of pyrazoles naphthalene bacterium amine, it is characterized in that: the content sum of the first active component and the second active component is described composition total weight 5%～80%.
5. according to claim 4 containing the bactericidal composition of pyrazoles naphthalene bacterium amine, it is characterized in that: the content sum of the first active component and the second active component is described composition total weight 10%～70%.
6. according to claim 1 containing the bactericidal composition of pyrazoles naphthalene bacterium amine, it is characterized in that: described combination dosage form is water dispersible granules, wetting powder or suspending agent.
7. described in claim 1, contain the bactericidal composition of pyrazoles naphthalene bacterium amine in the purposes of preventing and treating in crop powdery mildew.
8. purposes according to claim 7, described crop powdery mildew is apple mildew, powdery mildew of cucumber or wheat powdery mildew.
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| CN102771502B (en) * | 2012-07-30 | 2014-03-19 | 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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