CN102239879B - Bactericidal composition containing trifloxystrobin - Google Patents
Bactericidal composition containing trifloxystrobin Download PDFInfo
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- CN102239879B CN102239879B CN 201110082937 CN201110082937A CN102239879B CN 102239879 B CN102239879 B CN 102239879B CN 201110082937 CN201110082937 CN 201110082937 CN 201110082937 A CN201110082937 A CN 201110082937A CN 102239879 B CN102239879 B CN 102239879B
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- bacterium ester
- oxime bacterium
- iprobenfos
- isoprothiolane
- bactericidal composition
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Abstract
The invention relates to a bactericidal composition containing trifloxystrobin. Effective active components of the composition comprise (A) trifloxystrobin and (B) isoprothiolane or one of iprobenfos, wherein a weight ratio of A to B is 20:1 to 1:80. An assistant and an excipient are added into the effective active components to prepare a water dispersible granule, a deflocculant, an emulsion in water, a microemulsion and the like. The bactericidal composition is mainly used for preventing and treating rice blast, sheath blight, bakanae diseases and the like of paddy rice.
Description
Technical field
The invention belongs to technical field of pesticide, relate to a kind of bactericidal composition that contains oxime bacterium ester and Isoprothiolane or iprobenfos.
Technical background
Oxime bacterium ester (trifloxystrobin), molecular formula: C
20H
19F
3N
2O
4, chemical name: methyl (E)-methoxyl group imido grpup-{ (E)-α-[1-(α, α-three fluoro-m-tolyl)-ethyleneimino oxygen base]-o-tolyl } ethyl acetate.Oxime bacterium ester class wide-spectrum bactericide is the new fungicides of a class of successfully developing as the bactericide lead compound from natural products Strobilurins.Characteristics such as having efficient, wide spectrum, protection, treat, root out, infiltration, systemic activity, resistance of rainwater washing against, lasting period are long.To Isosorbide-5-Nitrae-demethylation enzyme inhibitor, it is effective that benzamides, dicarboxyl amine and benzimidazole produce the bacterial strain of resistance, with at present existing bactericide without cross resistance.Nearly all Mycophytes (Ascomycetes, Basidiomycetes, Oomycete and Fungi Imperfecti) disease such as powdery mildew, rust, Ying's rot, net blotch, downy mildew, rice blast etc. all there is good activity.Except powdery mildew, leaf spot are had special efficacy, rust, downy mildew, damping off, scab there is good activity.To crop safety, at soil, capable of being fast degraded in water because of it, therefore environmentally safe.
Isoprothiolane (isoprothiolane) molecular formula: C
12H
18O
4S
2, chemical name: diisopropyl-1,3-dithiolane-a-phenyl malonic ester.
Isoprothiolane is systemic fungicide, and rice blast is had special efficacy.Rice plant accumulates on leaf texture after absorbing medicament, concentrates on especially cob and branch stalk, invades thereby suppress germ, hinders the germ lipid-metabolism, suppresses pathogen growth, plays prevention and treatment.
Iprobenfos (iprobenfos), molecular formula are C
13H
21O
3PS, chemical name: O, O-diisopropyl-S-benzyl thiolophosphate.
Iprobenfos is the isopropyl kitazine, belongs to organophosphorus fungicide.Main interference cell membrane permeability stops some lipophilic chitin precursor by cytoplasma membrane, and chitinous biosynthesis block is hindered, and cell wall can not be grown, and suppresses the normal development of thalline.
No matter be oxime bacterium ester, Isoprothiolane (iprobenfos) or other efficient germicides, long-term use separately easily makes disease develop immunity to drugs, and causes the problem that dosage strengthens, preventive effect reduces, the lasting period shortens, and is unfavorable for environment sustainable development.If a kind ofly do not have the novel pesticide of cross resistance to prevent and treat pathogen and want newly developed, need screen 10,000～1.5 ten thousand compounds, cost 1～1.5 hundred million dollar, the construction cycle is 6～10 years.And that the active ingredient of the different mechanisms of action is carried out is composite, is to delay the disease method commonly used that develops immunity to drugs, and according to the effect in production application, judge this composite be synergistic effect or antagonism.Complex role is significantly filled a prescription, and can obviously improve preventive effect, greatly reduces the dosage of agricultural chemicals, also can enlarge fungicidal spectrum, improves germicidal efficiency.
Oxime bacterium ester is different from Isoprothiolane (iprobenfos) mechanism of action, and mutually composite have good synergistic effect within the specific limits.And composite about oxime bacterium ester and Isoprothiolane (iprobenfos) there is not yet relevant report at present at home and abroad.
Summary of the invention
The objective of the invention is to propose a kind of generation or delaying drug resistance speed that can prevent disease drug resistance, the bactericidal composition that use cost is low, preventive effect is good.
The present invention is achieved through the following technical solutions:
A kind of bactericidal composition that contains oxime bacterium ester, wherein oxime bacterium ester and Isoprothiolane or iprobenfos weight ratio are 20: 1～1: 80.
The described bactericidal composition that contains oxime bacterium ester, wherein the weight ratio of oxime bacterium ester and Isoprothiolane or iprobenfos is 10: 1～1: 40.
The described bactericidal composition that contains oxime bacterium ester, wherein the weight ratio of oxime bacterium ester and Isoprothiolane or iprobenfos is 5: 1～1: 20.
The described bactericidal composition that contains oxime bacterium ester, wherein the weight ratio of oxime bacterium ester and Isoprothiolane is 1: 1～1: 10.
The described bactericidal composition that contains oxime bacterium ester, wherein the weight ratio of oxime bacterium ester and iprobenfos is 1: 1～1: 20.
The described bactericidal composition that contains oxime bacterium ester connection, wherein the effective active component content accounts for 1～85% of gross weight, is preferably 10～80%.
The described bactericidal composition that contains oxime bacterium ester connection, when making liquid preparation, wherein the effective active component content accounts for 1～60% of gross weight, is preferably 5～50%.
The described bactericidal composition that contains oxime bacterium ester adds corresponding additive and filler according to method known in those skilled in the art, makes the upper any formulation that allows of agricultural, more preferably as: wetting powder, water dispersible granules, suspending agent, aqueous emulsion, microemulsion.
Described auxiliary agent has dispersant, wetting agent, disintegrant, binding agent, defoamer, antifreeze, thickener.
Described dispersant is selected from polycarboxylate, lignosulfonates, the phonetic formaldehyde condensation products sulphate of alkylphenol-polyethenoxy, alkyl benzene sulfonate calcium salt, naphthalene sulfonic acid-formaldehyde condensation product sodium salt, alkylphenol-polyethenoxy is phonetic, aliphatic amine polyoxyethylene is phonetic, one or more in phonetic of polyoxyethylene carboxylate, ester polyoxyethylene.
Described wetting agent is selected from: one or more in lauryl sodium sulfate, neopelex, Nekal BX, wetting and penetrating agent F, spaonin powder, silkworm excrement, soapberry powder.
Described binding agent is selected from: one or more in diatomite, white carbon, PVA, carboxymethyl (ethyl) cellulose.
Described antifreeze is selected from: one or more in ethylene glycol, propane diols, glycerine, polyethylene glycol.
Described defoamer is selected from: one or more in silicone oil, silicone compound, C10-20 saturated fat acid compounds, C8-10 aliphatic alcohols compound.
Described thickener is selected from: one or more in xanthan gum, polyvinyl alcohol, polyethylene glycol.
Described disintegrant is selected from: one or more in bentonite, urea, ammonium sulfate, aluminium chloride, glucose.
Described emulsifier is selected from: agriculture breast 500
#(alkyl benzene calcium sulfonate), 600
#Phosphate (phenyl phenol polyoxy ethyl ether phosphate), agriculture breast 400
#(benzyl dimethyl phenol polyoxy ethyl ether), agriculture breast 600
#(phenyl phenol polyoxy ethyl ether), Nongru-700
#(alkylphenol-formaldehyde resin polyoxy ethyl ether), agriculture breast 1600
#One or more in (phenethyl phenol polyoxy ethyl polypropylene-base ether), ethylene oxide-propylene oxide block copolymer.
Described filler is selected from: one or more in kaolin, diatomite, bentonite, attapulgite, white carbon, white carbon, precipitated calcium carbonate.
Composition of the present invention is mainly used in preventing and treating rice blast, banded sclerotial blight, bakanae disease etc.
Wetting powder the key technical indexes of the present invention:
Table 1
Water dispersible granules the key technical indexes of the present invention:
Table 2
Suspending agent the key technical indexes of the present invention:
Table 3
Aqueous emulsion the key technical indexes of the present invention:
Table 4
Microemulsion the key technical indexes of the present invention:
Table 5
Beneficial effect of the present invention: (1) present composition effective active composition oxime bacterium ester and Isoprothiolane or iprobenfos belong to the bactericide of two kinds of different mechanisms of action, and both mutually are mixed and can produce conflict; (2) present composition shows good synergistic effect in given scope, and preventive effect is apparently higher than single dose, and dosage is little; (3) the present invention not with an organic solvent, is difficult for producing poisoning, is convenient to transportation and storage; (4) present composition has special efficacy to rice blast.
Embodiment
To further instruction of the present invention, but the present invention is not limited thereto below in conjunction with embodiment.Percentage in following examples all is weight percentage.
The embodiment of the present invention is the method that adopts Toxicity Determination and field trial to combine.Implementation of an application example one: oxime bacterium ester and Isoprothiolane (or iprobenfos) are composite to the rice blast Toxicity Determination
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.Carry out with reference to " farm-chemical indoor determination test rule bactericide ", adopt the mycelial growth rate method to measure medicament to the virulence of rice blast.Measure colony diameter with the right-angled intersection method after 72h, calculate and respectively process net growth, mycelial growth inhibition rate.
Net growth (mm)=measurement colony diameter-5
Mycelial growth inhibition rate is converted into probit value (y), and liquor strength (μ g/mL) converts logarithm value (x) to, tries to achieve virulence regression equation (y=a+bx) with method of least squares, and calculates thus the EC of every kind of medicament
50Value.Calculate the different proportioning synergy ratios (SR) of two medicaments according to the Wadley method simultaneously, SR＜0.5 is antagonism, and 0.5≤SR≤1.5 are summation action, and SR＞1.5 are synergistic effect.Computing formula is as follows:
Wherein: a, b are respectively oxime bacterium ester and Isoprothiolane (or iprobenfos) shared ratio in combination
A is oxime bacterium ester
B is Isoprothiolane (or iprobenfos)
Result of the test is as shown in the table:
Table 6 oxime bacterium ester, Isoprothiolane and composite toxicity test analysis of results table to rice blast thereof
As shown in Table 6, oxime bacterium ester, the Isoprothiolane EC to rice blast
50Be respectively 0.89mg/L and 19.54mg/L.The virulence of oxime bacterium ester is higher than the virulence of Isoprothiolane.Oxime bacterium ester and Isoprothiolane were mixed in scope at 20: 1～1: 80 and all show obvious synergistic effect.Wherein, both mixed synergies in 5: 1～1: 20 scope are comparatively desirable, and mixed synergies is particularly outstanding in 1: 1～1: 10 scope.
Table 7 oxime bacterium ester, iprobenfos and composite toxicity test analysis of results table to rice blast thereof
As shown in Table 7, oxime bacterium ester, the iprobenfos EC to rice blast
50Be respectively 0.88mg/L and 32.14mg/L.The virulence of oxime bacterium ester is higher than the virulence of iprobenfos.Oxime bacterium ester and iprobenfos were mixed in scope at 20: 1～1: 80 and all show obvious synergistic effect.Wherein, both mixed synergies in 5: 1～1: 40 scope are comparatively desirable, and mixed synergies is particularly outstanding in 1: 1～1: 20 scope.
Implementation of an application example two the implementation of Formulation Example
(1) oxime bacterium ester Isoprothiolane:
Embodiment 1 80% oxime bacterium ester Isoprothiolane wetting powder
Oxime bacterium ester 10%, Isoprothiolane 70%, alkylphenol-polyethenoxy are phonetic 3%, lignosulfonates 2%, lauryl sodium sulfate 3%, kaolin add to 100%, mix making 80% oxime bacterium ester 'Daowenling ' water dispersible granule.
Embodiment 2 50% oxime bacterium ester Isoprothiolane wetting powders
Oxime bacterium ester 20%, Isoprothiolane 30%, lignosulfonates 3%, lauryl sodium sulfate 4%, kaolin add to 100%, mix to make 50% oxime bacterium ester 'Daowenling ' water dispersible granule.
Embodiment 3 70% oxime bacterium ester 'Daowenling ' water dispersible granules
Oxime bacterium ester 10%, Isoprothiolane 60%, polycarboxylate 3%, polyoxyethylene carboxylate 3%, lauryl sodium sulfate 4%, sodium bicarbonate 3%, diatomite add to 100%, mix to make 70% oxime bacterium ester 'Daowenling ' water dispersible granule.
Embodiment 4 55% oxime bacterium ester 'Daowenling ' water dispersible granules
Oxime bacterium ester 5%, Isoprothiolane 50%, alkylphenol-polyethenoxy are phonetic 5%, dodecyl benzene sulfonate 3%, white carbon 2%, bentonite add to 100%, mix making 55% oxime bacterium ester 'Daowenling ' water dispersible granule.
Embodiment 5 40% oxime bacterium ester Isoprothiolane suspending agents
Oxime bacterium ester 10%, Isoprothiolane 30%, alkyl benzene sulfonate calcium salt 5%, Sodium Polyacrylate 2%, DBSA 4%, silicone oil 0.1%, xanthan gum 0.3%, phenyl phenol polyoxy ethyl ether 2%, deionized water adds to 100%, mixes to make 40% oxime bacterium ester Isoprothiolane suspending agent.
Embodiment 6 30% oxime bacterium ester Isoprothiolane suspending agents
Oxime bacterium ester 5%, Isoprothiolane 25%, polycarboxylate 4%, soapberry powder 5%, silicone compound 0.1%, hydroxyethylcellulose 0.1%, ethylene glycol 2%, alkyl benzene calcium sulfonate 2%, deionized water adds to 100%, mixes to make 30% oxime bacterium ester Isoprothiolane suspending agent.
Embodiment 7 48% oxime bacterium ester isoprothiolane emulsion in waters
Oxime bacterium ester 8%, Isoprothiolane 40%, fatty alcohol-polyoxyethylene ether 5%, alkylbenzenesulfonate 4%, C3-C6 alcohol 3%, polyethylene glycol 2%, gelatin 2%, silicone oil 0.4%, deionized water supplies 100%, mixes to make 48% oxime bacterium ester isoprothiolane emulsion in water.
Embodiment 8 15% oxime bacterium ester isoprothiolane emulsion in waters
Oxime bacterium ester 5%, Isoprothiolane 10%, phenethyl phenol polyethenoxy ether 7%, alkylbenzenesulfonate 5%, C3-C6 alcohol 5%, glycerine 4%, gum Arabic 1%, silicone oil 0.4%, deionized water supplies 100%, mixes to make 15% oxime bacterium ester isoprothiolane emulsion in water.
Embodiment 9 40% oxime bacterium ester Isoprothiolane microemulsions
With oxime bacterium ester 20%, Isoprothiolane 20%, tween 4%, alkylbenzenesulfonate 3%, phenethyl phenol polyethenoxy ether phosphate 5%, xanthans 2%, propane diols 3%, silicone oil 0.4%, deionized water is supplied 100%, 40% oxime bacterium ester Isoprothiolane microemulsion.
Embodiment 10 24% oxime bacterium ester Isoprothiolane microemulsions
With oxime bacterium ester 20%, Isoprothiolane 4%, alkylphenol polyoxyethylene phosphate 3%, castor oil polyoxyethylene ether 5%, gelatin 2%, glycerine 3%, silicone oil 0.4%, deionized water is supplied 100%, 24% oxime bacterium ester Isoprothiolane microemulsion.
(2) oxime bacterium ester iprobenfos
Embodiment 11 81% oxime bacterium ester iprobenfos wetting powders
Oxime bacterium ester 1%, iprobenfos 80%, alkylphenol-polyethenoxy are phonetic 3%, lauryl sodium sulfate 4%, white carbon add to 100%, mix making 81% oxime bacterium ester iprobenfos water dispersible granules.
Embodiment 12 65% oxime bacterium ester iprobenfos wetting powders
Oxime bacterium ester 5%, iprobenfos 60%, polycarboxylate 4%, lauryl sodium sulfate 4%, white carbon 15%, diatomite add to 100%, mix to make 65% oxime bacterium ester iprobenfos water dispersible granules.
Embodiment 13 75% oxime bacterium ester iprobenfos water dispersible granules
Oxime bacterium ester 10%, iprobenfos 65%, polycarboxylate 3%, lignosulfonates 3%, lauryl sodium sulfate 4%, sodium bicarbonate 3%, white carbon 7%, bentonite add to 100%, mix to make 75% oxime bacterium ester iprobenfos water dispersible granules.
Embodiment 14 48% oxime bacterium ester iprobenfos water dispersible granules
Oxime bacterium ester 40%, iprobenfos 8%, alkylphenol-polyethenoxy are phonetic 4%, DBSA 4%, white carbon 5%, ammonium sulfate 12%, kaolin add to 100%, mix making 48% oxime bacterium ester iprobenfos water dispersible granules.
Embodiment 15 40% oxime bacterium ester iprobenfos suspending agents
Oxime bacterium ester 20%, iprobenfos 20%, polycarboxylate 4%, soapberry powder 5%, silicone compound 0.1%, hydroxyethylcellulose 0.1%, ethylene glycol 2%, alkyl benzene calcium sulfonate 2%, deionized water adds to 100%, mixes to make 40% oxime bacterium ester iprobenfos suspending agent.
Embodiment 16 36% oxime bacterium ester iprobenfos suspending agents
Oxime bacterium ester 6%, iprobenfos 30%, polycarboxylate 2%, Nekal BX 2%, C10-20 saturated fat acid compounds 0.1%, polyethylene glycol 0.5%, ethylene glycol 4%, phenethyl phenol polyoxy ethyl polypropylene-base ether 1%, deionized water adds to 100%, mixes to make 36% oxime bacterium ester iprobenfos suspending agent.
Embodiment 17 40% oxime bacterium ester iprobenfos microemulsions
With oxime bacterium ester 5%, iprobenfos 35%, ethylene glycol 4%, polyvinyl alcohol 2%, nonionic EO-PO block copolymer 8%, alkylbenzenesulfonate 3%, silicone oil 0.4%, deionized water supplies 100%, makes 40% oxime bacterium ester iprobenfos microemulsion.
Embodiment 18 11% oxime bacterium ester iprobenfos microemulsions
With oxime bacterium ester 10%, iprobenfos 1%, sapn series 8%, aliphatic alcohol polyoxyvinethene phosphate 7%, propane diols 3%, gelatin 1%, silicone oil 0.4%, deionized water is supplied 100%, 10% oxime bacterium ester iprobenfos microemulsion.
Embodiment 19 50% oxime bacterium ester Iprobenfos aqueous emulsions
With oxime bacterium ester 10%, iprobenfos 40%, fatty alcohol-polyoxyethylene ether 6%, alkylbenzenesulfonate 4%, C3-C6 alcohol 5%, polyethylene glycol 2%, gelatin 2%, silicone oil 0.4%, deionized water supplies 100%, makes 50% oxime bacterium ester Iprobenfos aqueous emulsion.
Embodiment 20 21% oxime bacterium ester Iprobenfos aqueous emulsions
With oxime bacterium ester 1%, iprobenfos 20%, castor oil polyoxyethylene ether 6%, C3-C6 alcohol 5%, gelatin 0.5%, glycerine 4%, sodium chloride 2%, silicone oil 0.4%, deionized water supplies 100%, makes 21% oxime bacterium ester Iprobenfos aqueous emulsion.
Embodiment uses three bactericidal compositions that contain oxime bacterium ester and prevents and treats the rice blast test of pesticide effectiveness
This experimental establishment is in Jidong County, Heilongjiang Province, test medicine is researched and developed, is provided by Shanxi Thompson Biological Technology Co., Ltd., contrast medicament 40% Isoprothiolane wetting powder (commercial), 40% iprobenfos missible oil (commercial), 12.5% oxime bacterium emulsifiable concentrate (commercial).
The investigation rice blast state of an illness before medicine, in the dispenser for the first time of state of an illness initial stage, dispenser in every 7 days once is total to dispenser 2 times.Investigated respectively the rice blast disease index and calculated preventive effect in 3 days, 14 days, 30 days after dispenser for the second time.Experimental result is as follows:
Table 8 contains the bactericidal composition control rice blast test of pesticide effectiveness of oxime bacterium ester
As can be seen from Table 8, can effectively prevent and treat rice blast after oxime bacterium ester and Isoprothiolane or iprobenfos are composite, control efficiency all is better than contrasting medicament, and the lasting period is long.In the test scope of medication, the target crop is had no adverse effects, preventive effect reaches more than 90%.
Implementation of an application example four: the bactericidal composition that contains oxime bacterium ester is prevented and treated the rice sheath blight disease test of pesticide effectiveness
This experimental establishment is in the Guangxi province Longan County, test medicine is researched and developed, is provided by Shanxi Thompson Biological Technology Co., Ltd., contrast medicament 40% Isoprothiolane wetting powder (commercial), 40% iprobenfos missible oil (commercial), 12.5% oxime bacterium emulsifiable concentrate (commercial).
Investigation rice sheath blight disease state of an illness radix before medicine, in the their early stage dispenser, dispenser in every 7 days once, dispenser is 2 times altogether, investigates respectively disease index and calculates preventive effect in 3 days, 14 days, 30 days after dispenser for the second time.Experimental result is as follows:
Table 9 contains the bactericidal composition of oxime bacterium ester and prevents and treats the rice sheath blight disease test of pesticide effectiveness
As can be seen from Table 9, can effectively prevent and treat rice sheath blight disease after oxime bacterium ester and Isoprothiolane or iprobenfos are composite and occur, control efficiency all is better than contrasting medicament, in this test scope of medication, the target crop is had no adverse effects, and bakanae disease of rice is had good preventive effect, preventive effect reaches more than 90%.
Claims (7)
1. bactericidal composition that contains oxime bacterium ester is characterized in that bactericidal composition effective active composition (A) oxime bacterium ester and (B) weight ratio of Isoprothiolane or iprobenfos are 20 ︰ 1 ~ 1 ︰ 80.
2. the bactericidal composition that contains oxime bacterium ester according to claim 1 is characterized in that: wherein (A) oxime bacterium ester is 5 ︰ 1 ~ 1 ︰ 20 with (B) weight ratio of Isoprothiolane or iprobenfos.
3. the bactericidal composition that contains oxime bacterium ester according to claim 2, it is characterized in that: wherein the weight ratio of oxime bacterium ester and Isoprothiolane is 1 ︰ 1 ~ 1 ︰ 10.
4. the bactericidal composition that contains oxime bacterium ester according to claim 2, it is characterized in that: wherein the weight ratio of oxime bacterium ester and iprobenfos is 1 ︰ 5 ~ 1 ︰ 20.
5. the bactericidal composition that contains oxime bacterium ester according to claim 1, it is characterized in that: wherein the effective active component content accounts for 1～85% of gross weight.
6. the bactericidal composition that contains oxime bacterium ester according to claim 1, it is characterized in that: bactericidal composition is made wetting powder, water dispersible granules, suspending agent, aqueous emulsion, microemulsion.
7. the bactericidal composition of oxime bacterium ester that contains according to claim 1 is for the purposes of the rice blast of preventing and treating paddy rice, banded sclerotial blight, bakanae disease.
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| CN105076225A (en) * | 2015-08-27 | 2015-11-25 | 湖州旭龙生物化学有限公司 | Sterilizing composition with trifloxystrobin and merremia boisiana extracts |
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