CN101755781B - Fungicidal composition containing penconazole and carbendazim - Google Patents
Fungicidal composition containing penconazole and carbendazim Download PDFInfo
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- CN101755781B CN101755781B CN 201010001561 CN201010001561A CN101755781B CN 101755781 B CN101755781 B CN 101755781B CN 201010001561 CN201010001561 CN 201010001561 CN 201010001561 A CN201010001561 A CN 201010001561A CN 101755781 B CN101755781 B CN 101755781B
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- penconazole
- carbendazim
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Abstract
The invention relates to a synergistic fungicidal composition, the active components of which contain penconazole and carbendazim, wherein the weight ratio of the penconazole to the carbendazim is 1:50 to 80:1. Additives and excipients can be added in the active components to produce wettable powder, water dispersible granule and suspending agent, which are mainly used to control powdery mildew, anthracnose, scab, rust disease and rice blast.
Description
Technical field
The invention belongs to technical field of pesticide, relate to a kind of bactericidal composition that contains penconazole and carbendazim.
Technical background
Penconazole (penconazole) molecular formula: C13H15Cl2N3, chemical name: 1-[2-(2,4-dichlorophenyl)-4-propyl group-DOX-2-methyl]-1-hydrogen-1,2, the 4-triazole.
Penconazole belongs to three nitrogen heterocycles bactericide, is sterol demethylation inhibitor, destroys and stop the biosynthesis of the cell membrane important composition composition ergosterol of germ, causes cell membrane not form, and is that germ is dead.Root, stem, leaf isoreactivity tissue by crop absorb, and can upwards conduct with body fluid in the plant body soon.
Carbendazim (carbendazim), molecular formula are C
9H
9N
3O
2, chemical name: N-(2-benzimidazolyl) methyl carbamate.
Carbendazim belongs to benzimidazole, and high-efficiency low-toxicity has protection and therapeutic action.The mechanism of action is the formation of imitative hammer body in the mitosis of disturbing bacterium, thereby affects cell division.
No matter be penconazole, carbendazim or other efficient germicides, long-term separately use 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.The active ingredient of the different mechanisms of action is carried out composite, is to delay the disease method commonly used that develops immunity to drugs, and according to the effect in the 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.Penconazole is different from the carbendazim mechanism of action, and mutually composite have good synergistic effect within the specific limits.And composite about penconazole and carbendazim 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 have synergistic function, use cost is low, preventive effect the is good bactericidal composition that contains penconazole and carbendazim.
The present invention is achieved through the following technical solutions:
A kind of bactericidal composition that contains penconazole and carbendazim, wherein penconazole and carbendazim weight ratio are 1~50: 80~1.
The described bactericidal composition that contains penconazole and carbendazim, wherein the weight ratio of penconazole and carbendazim is 1~40: 70~10.
The described bactericidal composition that contains penconazole and carbendazim, wherein the weight ratio of penconazole and carbendazim is 1~30: 60~20.
The described bactericidal composition that contains penconazole and carbendazim, wherein the effective active component content accounts for 1~90% of gross weight, is preferably 10~80%.
The described bactericidal composition that contains penconazole and carbendazim is made wetting powder, water dispersible granules or suspending agent.
When making wetting powder, composition comprises following constituent content: penconazole 1~40%, carbendazim 1~80%, dispersant 5~10%, wetting agent 2~10%, filler 8~90%.
Penconazole, carbendazim, dispersant, wetting agent, filler are mixed, in mixed cylinder, mix, after airslide disintegrating mill is pulverized, mix again, namely can be made into penconazole carbendazol wettable powder product.
When making water dispersible granules, composition comprises following constituent content: penconazole 1~40%, carbendazim 1~80%, dispersant 3~12%, wetting agent 1~8%, disintegrant 1~10%, filler 10~90%.
Penconazole, carbendazim, dispersant, wetting agent, disintegrant, filler etc. are obtained together the particle diameter of needs through air-flow crushing, obtain the materials of granulating.With item quantitatively send in the fluidized bed granulation dryer through granulation and drying after, make penconazole carbendazim water dispersing granule product.
Comprise following constituent content when composition is made suspending agent: penconazole 1~40%, carbendazim 1~50%, dispersant 2~10%, wetting agent 2~10%, defoamer 0.1~1%, thickener 0.1~2%, antifreeze 0.1~8%, emulsifier 0.5%~5%, deionized water add to 100%.
Dispersant, wetting agent, defoamer, thickener, antifreeze, emulsifier in the above-mentioned formulation material are mixed through high speed shear, add penconazole, carbendazim, ball milling is 2~3 hours in ball mill, makes diameter of particle all below 5 μ m, makes penconazole carbendazim suspending agent product.
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, in phonetic one or more 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, the soapberry powder.
Described antifreeze is selected from: one or more in ethylene glycol, propane diols, glycerine, the polyethylene glycol.
Described defoamer is selected from: one or more in silicone oil, silicone compound, C10-20 saturated fat acid compounds, the C8-10 aliphatic alcohols compound.
Described thickener is selected from: one or more in xanthan gum, polyvinyl alcohol, the polyethylene glycol.
Described disintegrant is selected from: one or more in bentonite, urea, ammonium sulfate, the aluminium chloride.
Described emulsifier is selected from: farming breast 500
#(alkyl benzene calcium sulfonate), 600
#Phosphate (phenyl phenol polyoxy ethyl ether phosphate), farming breast 400
#(benzyl dimethyl phenol polyoxy ethyl ether), farming breast 600
#(phenyl phenol polyoxy ethyl ether), Nongru-700
#(alkylphenol-formaldehyde resin polyoxy ethyl ether), farming breast 1600
#In (phenethyl phenol polyoxy ethyl polypropylene-base ether), the ethylene oxide-propylene oxide block copolymer one or more.
Described filler is selected from: one or more in kaolin, diatomite, bentonite, attapulgite, white carbon, starch, the precipitated calcium carbonate.
Composition of the present invention is mainly used in preventing and treating powdery mildew, anthracnose, scab, rust, rice blast.
Beneficial effect of the present invention: (1) present composition effective active composition penconazole and carbendazim belong to the bactericide of two kinds of different mechanisms of action, and both mutually are mixed and can produce conflict;
(2) present composition has good synergistic effect within the specific limits, and preventive effect is higher than single dose, and dosage is little; (3) the present invention not with an organic solvent is not difficult for producing poisoning, is convenient to transportation and storage; (4) present composition is to powdery mildew, anthracnose, scab, rust, rice blast.Special efficacy is arranged.
Embodiment
To further instruction of the present invention, the percentage among the embodiment all is weight percentage below in conjunction with embodiment, but the present invention is not limited thereto.
The embodiment of the invention is the method that adopts Toxicity Determination and field trial to combine.Implementation of an application example one: penconazole and carbendazim are composite to the powdery mildew of cucumber Toxicity Determination
Test medicine provides by Shaanxi means of agricultural production trade Co., Ltd of U.S. nation.
After each medicament establishment concentration range 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 powdery mildew of cucumber.Measure colony diameter with the right-angled intersection method behind the 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 malicious side's 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 penconazole and carbendazim shared ratio in combination
A is penconazole
B is carbendazim
Result of the test is as shown in table 1:
Table 1 penconazole, carbendazim and composite toxicity test analysis of results table to powdery mildew of cucumber thereof
As shown in Table 1, penconazole, carbendazim are to the EC of powdery mildew of cucumber
50Be respectively 0.15mg/L and 16.82mg/L.The virulence of penconazole is higher than the virulence of carbendazim.1: 1,1: 4,1: 8,1: 12,1: 16 synergy ratio of penconazole and carbendazim proportioning is respectively 1.56,1.81,2.17,1.82,1.57, illustrating that penconazole and carbendazim were mixed in the scope at 1: 1~1: 16 all shows obvious synergistic effect, wherein synergy ratio SR is maximum when penconazole and carbendazim weight ratio are 1: 8, and synergistic effect is the most obvious.
Implementation of an application example two the implementation of Formulation Example
Embodiment 1 80% penconazole carbendazol wettable powder
Penconazole 20%, carbendazim 60%, polycarboxylate 5%, neopelex 3%, soapberry powder 2%, white carbon 10%, mixture carries out air-flow crushing, makes 80% penconazole carbendazol wettable powder.
Embodiment 2 65% penconazole carbendazol wettable powders
Penconazole 30%, carbendazim 35%, lignosulfonates 5%, spaonin powder 3%, white carbon 7%, diatomite 20%, mixture carries out air-flow crushing, makes 65% penconazole carbendazol wettable powder.
Embodiment 3 55% penconazole carbendazol wettable powders
Penconazole 10%, carbendazim 45%, alkylphenol-polyethenoxy are phonetic 5%, neopelex 3%, white carbon 17%, bentonite 20%, and mixture carries out air-flow crushing, makes 55% penconazole carbendazol wettable powder.
Embodiment 4 15% penconazole carbendazol wettable powders
Penconazole 5%, carbendazim 10%, lignosulfonates 5%, wetting and penetrating agent F 3%, white carbon 17%, bentonite 60%, mixture carries out air-flow crushing, makes 15% penconazole carbendazol wettable powder.
Embodiment 5 80% penconazole carbendazim water dispersing granules
Penconazole 10%, carbendazim 70%, alkylphenol-polyethenoxy are phonetic 3%, lignosulfonates 3%, lauryl sodium sulfate 4%, starch 10%, mix making 80% penconazole carbendazim water dispersing granule.
Embodiment 6 70% penconazole carbendazim water dispersing granules
Penconazole 20%, carbendazim 50%, polycarboxylate 3%, polyoxyethylene carboxylate 3%, lauryl sodium sulfate 4%, sodium bicarbonate 3%, starch 7%, kaolin 10% mix making 70% penconazole carbendazim water dispersing granule.
Embodiment 7 50% penconazole carbendazim water dispersing granules
Penconazole 4%, carbendazim 46%, alkylphenol-polyethenoxy are phonetic 5%, dodecyl benzene sulfonate 3%, starch 20%, bentonite 22%, mix making 50% penconazole carbendazim water dispersing granule.
Embodiment 8 43% penconazole carbendazim water dispersing granules
Penconazole 3%, carbendazim 40%, alkylphenol-polyethenoxy are phonetic 4%, DBSA 4%, starch 15%, diatomite 34%, mix making 43% penconazole carbendazim water dispersing granule.
Embodiment 9 48% penconazole carbendazim suspending agents
Penconazole 8%, carbendazim 40%, 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 48% penconazole carbendazim suspending agent.
Embodiment 10 30% penconazole carbendazim suspending agents
Penconazole 6%, carbendazim 24%, 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% penconazole carbendazim suspending agent.
Embodiment 11 22% penconazole carbendazim suspending agents
Penconazole 2%, carbendazim 20%, polycarboxylate 2%, neopelex 2%, silicone compound 0.1%, polyethylene glycol 0.5%, glycerine 4%, phenethyl phenol polyoxy ethyl polypropylene-base ether 1%, deionized water adds to 100%, mixes to make 22% penconazole carbendazim suspending agent.
Embodiment 12 10% penconazole carbendazim suspending agents
Penconazole 5%, carbendazim 5%, 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 10% penconazole carbendazim suspending agent.
Embodiment uses three penconazoles and carbendazim and the composite apple mildew test of pesticide effectiveness of preventing and treating thereof
This experimental establishment is in Luochuan County suburb, Shaanxi Province, and test medicine is researched and developed, provided by Shaanxi means of agricultural production trade Co., Ltd of U.S. nation, contrast medicament 80% carbendazol wettable powder (commercial), 10% penconazole missible oil (commercial).
The investigation apple mildew state of an illness before the medicine, in for the first time dispenser of state of an illness initial stage, dispenser in per 7 days once is total to dispenser 3 times.Investigated respectively apple mildew feelings index and calculated preventive effect in 7 days, 14 days, 30 days after the dispenser for the third time.Experimental result is as follows:
Table 2 penconazole, carbendazim and the composite apple mildew test of pesticide effectiveness of preventing and treating thereof
Treatment agent | Extension rate | 7 days preventive effects (%) behind the last medicine | 14 days preventive effects (%) behind the last medicine | 30 days preventive effects (%) behind the last medicine |
80% penconazole carbendazol wettable powder | 6000 times | 90.57 | 93.24 | 93.17 |
70% penconazole carbendazim water dispersing granule | 5000 times | 91.27 | 94.57 | 94.35 |
30% penconazole carbendazim suspending agent | 1500 times | 89.83 | 93.31 | 93.13 |
80% carbendazol wettable powder | 850 times | 60.13 | 66.14 | 64.82 |
10% penconazole missible oil | 2000 times | 69.51 | 75.64 | 73.45 |
As can be seen from Table 2, can effectively prevent and treat apple mildew after penconazole and carbendazim are composite, control efficiency all is better than contrasting medicament, and the lasting period is long.In the test scope of medication target crop is had no adverse effects, and ring rot of apple is had good preventive effect, preventive effect reaches more than 91%.
Implementation of an application example four: penconazole and carbendazim and the composite pear scab test of pesticide effectiveness of preventing and treating thereof
This experimental establishment is in the Pucheng County, Shaanxi Province, and test medicine is researched and developed, provided by Shaanxi means of agricultural production trade Co., Ltd of U.S. nation, contrast medicament 80% carbendazol wettable powder (commercial), 10% penconazole missible oil (commercial).
The investigation pear scab state of an illness before the medicine, in for the first time dispenser of state of an illness initial stage, dispenser in per 7 days once is total to dispenser 3 times.Investigated respectively the pear scab disease index and calculated preventive effect in 7 days, 14 days, 30 days after for the second time dispenser.Experimental result is as follows:
Table 3 penconazole, carbendazim and the composite pear scab test of pesticide effectiveness of preventing and treating thereof
Treatment agent | Extension rate | 7 days preventive effects (%) behind the last medicine | 14 days preventive effects (%) behind the last medicine | 30 days preventive effects (%) behind the last medicine |
65% penconazole carbendazol wettable powder | 6500 times | 90.36 | 96.05 | 95.18 |
50% penconazole carbendazim water dispersing granule | 1500 times | 89.54 | 96.16 | 95.85 |
22% penconazole carbendazim suspending agent | 500 times | 89.55 | 94.94 | 93.29 |
80% carbendazol wettable powder | 850 times | 64.82 | 68.31 | 65.72 |
10% penconazole missible oil | 2000 times | 75.36 | 82.42 | 80.42 |
As can be seen from Table 3, energy effectively preventing pear scab after penconazole and carbendazim are composite, control efficiency all is better than contrasting medicament, and dosage is little, and the lasting period is long.The test scope of medication in to the target crop without harm.
Implementation of an application example five: penconazole, carbendazim and the composite wheat rust test of pesticide effectiveness of preventing and treating thereof
This experimental establishment is in Fuyang City suburb, Anhui Province, and test medicine is researched and developed, provided by Shaanxi means of agricultural production trade Co., Ltd of U.S. nation, contrast medicament 80% carbendazol wettable powder (commercial), 10% penconazole missible oil (commercial).
Investigation wheat rust state of an illness radix, total number of sheets, the sick number of sheets and sick leaf-size class number before the medicine, in the their early stage dispenser, dispenser in per 7 days once is total to dispenser 2 times, investigates respectively disease index and calculates preventive effect in 7 days, 14 days after for the second time dispenser.Experimental result is as follows:
Table 4 penconazole, carbendazim and the composite wheat rust test of pesticide effectiveness of preventing and treating thereof
Treatment agent | The preparation dosage | 7 days preventive effects (%) behind the medicine for the second time | 14 days preventive effects (%) behind the medicine for the second time |
55% penconazole carbendazol wettable powder | 12 g/acres | 91.62 | 96.18 |
80% penconazole carbendazim water dispersing granule | 10 g/acres | 90.37 | 95.43 |
48% penconazole carbendazim suspending agent | 18 g/acres | 89.75 | 94.58 |
80% carbendazol wettable powder | 55 g/acres | 63.44 | 67.34 |
10% penconazole missible oil | 15 g/acres | 80.28 | 85.45 |
As can be seen from Table 4, can effectively prevent and treat wheat rust after penconazole and carbendazim 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 wheat powdery mildew had good preventive effect, preventive effect reaches 90.12%~95.73%.
Implementation of an application example six: penconazole, carbendazim and the composite control rice blast test of pesticide effectiveness thereof
This experimental establishment is in Sheyang County, Jiangsu Province, and test medicine is researched and developed, provided by Shaanxi means of agricultural production trade Co., Ltd of U.S. nation, contrast medicament 80% carbendazol wettable powder (commercial), 10% penconazole missible oil (commercial).
Investigation rice blast state of an illness radix, total number of sheets, the sick number of sheets and sick leaf-size class number before the medicine, in the their early stage dispenser, dispenser in per 7 days once is total to dispenser 2 times, investigates respectively disease index and calculates preventive effect in 7 days, 14 days after for the second time dispenser.Experimental result is as follows:
Table 5 penconazole, carbendazim and the composite control rice blast test of pesticide effectiveness thereof
Treatment agent | The preparation dosage | 7 days preventive effects (%) behind the medicine for the second time | 14 days preventive effects (%) behind the medicine for the second time |
15% penconazole carbendazol wettable powder | 25 g/acres | 90.63 | 95.74 |
43% penconazole carbendazim water dispersing granule | 22 g/acres | 91.75 | 96.29 |
10% penconazole carbendazim suspending agent | 25 g/acres | 89.54 | 94.83 |
80% carbendazol wettable powder | 55 g/acres | 68.22 | 75.34 |
10% penconazole missible oil | 15 g/acres | 80.15 | 86.64 |
As can be seen from Table 5, can effectively prevent and treat rice blast after penconazole and carbendazim 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.
Claims (1)
1. bactericidal composition that contains penconazole and carbendazim, the weight ratio that it is characterized in that bactericidal composition effective active composition penconazole and carbendazim is 1:1 ~ 1:16.
2. the bactericidal composition that contains penconazole and carbendazim according to claim 1, it is characterized in that: wherein the effective active component content accounts for 1~90% of gross weight.
3. the bactericidal composition that contains penconazole and carbendazim according to claim 2, it is characterized in that: wherein the effective active component content accounts for 10~80% of gross weight.
4. the bactericidal composition that contains penconazole and carbendazim according to claim 1, it is characterized in that: bactericidal composition is made wetting powder, water dispersible granules, suspending agent.
5. the bactericidal composition of penconazole and carbendazim that contains according to claim 1 is for the purposes of preventing and treating powdery mildew, anthracnose, scab, rust, rice blast.
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CN1385068A (en) * | 2002-05-22 | 2002-12-18 | 江苏省农药研究所 | Composite with pest-killing, mite-killing bacteria-killing activity |
WO2006056434A1 (en) * | 2004-11-26 | 2006-06-01 | Basf Aktiengesellschaft | Use of menadione for boosting the effectiveness of agrochemicals |
WO2007065843A2 (en) * | 2005-12-09 | 2007-06-14 | Basf Se | Use of gibberellin as safener for azoles for prevention of fungal pests |
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CN1385068A (en) * | 2002-05-22 | 2002-12-18 | 江苏省农药研究所 | Composite with pest-killing, mite-killing bacteria-killing activity |
WO2006056434A1 (en) * | 2004-11-26 | 2006-06-01 | Basf Aktiengesellschaft | Use of menadione for boosting the effectiveness of agrochemicals |
WO2007065843A2 (en) * | 2005-12-09 | 2007-06-14 | Basf Se | Use of gibberellin as safener for azoles for prevention of fungal pests |
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