CN101715767B - Bactericidal composition containing kresoxim-methyl and penconazole - Google Patents
Bactericidal composition containing kresoxim-methyl and penconazole Download PDFInfo
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- CN101715767B CN101715767B CN 201010003071 CN201010003071A CN101715767B CN 101715767 B CN101715767 B CN 101715767B CN 201010003071 CN201010003071 CN 201010003071 CN 201010003071 A CN201010003071 A CN 201010003071A CN 101715767 B CN101715767 B CN 101715767B
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- penconazole
- methyl
- kresoxim
- bactericidal composition
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Abstract
The invention relates to a bactericide composition with synergetic effect. Effective active components of the composition contain kresoxim-methyl and penconazole, wherein the weight ratio of kresoxim-methyl to penconazole is 5-80:40-1. The effective active components are added with additives and excipients and made into wettable powder, water dispersible granules or suspending agents mainly used to prevent and control powdery mildew, scab and anthracnose of fruit trees.
Description
Technical field
The invention belongs to technical field of pesticide, relate to a kind of application of bactericidal composition on crop pest that contains kresoxim-methyl and penconazole.
Technical background
Kresoxim-methyl (kresoxim-methyl) is the methoxy acrylic bactericide of BASF Aktiengesellschaft's exploitation.Molecular formula: C
18H
19NO
4, chemical name: methyl (E)-2-methoxyimino-2-[2-(0-toloxyl) phenyl] and acetate.
Kresoxim-methyl belongs to the mitochondrial respiratory inhibitor; it is a kind of wide-spectrum bactericide; and the lasting period is long; most of diseases that the pathomycetes such as Ascomycetes, Basidiomycetes, Fungi Imperfecti and oomycetes subclass are caused have protection, treat and root out activity; to crop, people, animal and beneficial organism safety, substantially pollution-free to environment, but the intrinsic pesticide resistance of this series bactericidal agent is high-caliber; easily develop immunity to drugs, and cost is high.
Penconazole (penconazole) molecular formula: C
13H
15Cl
2N
3, 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.
No matter be kresoxim-methyl, penconazole 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.Kresoxim-methyl is different from the penconazole mechanism of action, and mutually composite have good synergistic effect within the specific limits.And composite about kresoxim-methyl and penconazole 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 kresoxim-methyl and penconazole.
The present invention is achieved through the following technical solutions:
A kind of bactericidal composition that contains kresoxim-methyl and penconazole, wherein kresoxim-methyl and penconazole weight ratio are 5～80: 40～1.
The described bactericidal composition that contains kresoxim-methyl and penconazole, wherein the weight ratio of kresoxim-methyl and penconazole is 10～70: 30～1.
The described bactericidal composition that contains kresoxim-methyl and penconazole, wherein the weight ratio of kresoxim-methyl and penconazole is 20～60: 20～1.
The described bactericidal composition that contains kresoxim-methyl and penconazole, wherein the effective active component content accounts for 1～90% of gross weight, is preferably 10～80%.
The described bactericidal composition that contains kresoxim-methyl and penconazole is made wetting powder, water dispersible granules or suspending agent.
When making wetting powder, composition comprises following constituent content: kresoxim-methyl 5～80%, penconazole 1～40%, dispersant 5～10%, wetting agent 2～10%, filler 8～90%.
Kresoxim-methyl, penconazole, dispersant, wetting agent, filler are mixed, in mixed cylinder, mix, after airslide disintegrating mill is pulverized, mix again, namely can be made into kresoxim-methyl penconazole wetting powder product.
When making water dispersible granules, composition comprises following constituent content: kresoxim-methyl 5～80%, penconazole 1～40%, dispersant 3～12%, wetting agent 1～8%, disintegrant 1～10%, filler 10～90%.
Kresoxim-methyl, penconazole, 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 kresoxim-methyl penconazole water dispersible granules product.
Comprise following constituent content when composition is made suspending agent: kresoxim-methyl 5～50%, penconazole 1～20%, dispersant 2～10%, wetting agent 2～10%, defoamer 0.1～1%, thickener 0.1～2%, emulsifier 0.5～3%, antifreeze 0.1～8%, deionized water add to 100%.
Dispersant, wetting agent, defoamer, thickener, antifreeze in the above-mentioned formulation material are mixed through high speed shear, add kresoxim-methyl, penconazole, ball milling is 2～3 hours in ball mill, makes diameter of particle all below 5 μ m, makes kresoxim-methyl penconazole 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 disintegrant is selected from: one or more in bentonite, urea, ammonium sulfate, the aluminium chloride.
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 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, scab, the anthracnose of vegetables and fruit tree.
Beneficial effect of the present invention: (1) present composition effective active composition kresoxim-methyl and penconazole 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 has special efficacy to powdery mildew, scab, anthracnose.
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 the implementation of Formulation Example
Embodiment 1 80% kresoxim-methyl penconazole wetting powder
Kresoxim-methyl 60%, penconazole 20%, polycarboxylate 5%, lauryl sodium sulfate 3%, spaonin powder 2%, kaolin 10%, mixture carries out air-flow crushing, makes 80% kresoxim-methyl penconazole wetting powder.
Embodiment 2 65% kresoxim-methyl penconazole wetting powders
Kresoxim-methyl 35%, penconazole 30%, alkyl benzene sulfonate calcium salt 4%, wetting and penetrating agent F4%, white carbon 8%, bentonite 19%, mixture carries out air-flow crushing, makes 65% kresoxim-methyl penconazole wetting powder.
Embodiment 3 55% kresoxim-methyl penconazole wetting powders
Kresoxim-methyl 45%, penconazole 10%, alkyl benzene sulfonate calcium salt 5%, wetting and penetrating agent F3%, white carbon 8%, kaolin 29%, mixture carries out air-flow crushing, makes 55% kresoxim-methyl penconazole wetting powder.
Embodiment 4 15% kresoxim-methyl penconazole wetting powders
Kresoxim-methyl 10%, penconazole 5%, lignosulfonates 5%, tea are withered 3%, white carbon 8%, bentonite 36%, and mixture carries out air-flow crushing, makes 15% kresoxim-methyl penconazole wetting powder.
Embodiment 5 80% kresoxim-methyl penconazole water dispersible granules
Kresoxim-methyl 70%, penconazole 10%, polycarboxylate 3%, lignosulfonates 3%, lauryl sodium sulfate 4%, ammonium sulfate 2%, starch 8% mix making 80% kresoxim-methyl penconazole water dispersible granules.
Embodiment 6 70% kresoxim-methyl penconazole water dispersible granules
Kresoxim-methyl 50%, penconazole 20%, naphthalene sulfonic acid-formaldehyde condensation product sodium salt 3%, polyoxyethylene carboxylate 3%, soapberry powder 4%, sodium bicarbonate 3%, starch 17%,, mix making 70% kresoxim-methyl penconazole water dispersible granules.
Embodiment 7 50% kresoxim-methyl penconazole water dispersible granules
Kresoxim-methyl 38%, penconazole 12%, naphthalene sulfonic acid-formaldehyde condensation product sodium salt 3%, polyoxyethylene carboxylate 3%, soapberry powder 4%, sodium bicarbonate 3%, starch 37%,, mix making 50% kresoxim-methyl penconazole water dispersible granules.
Embodiment 8 40% kresoxim-methyl penconazole water dispersible granules
Kresoxim-methyl 36%, penconazole 4%, alkylphenol-polyethenoxy are phonetic 5%, DBSA 2%, starch 20%, diatomite 33%, mix making 40% kresoxim-methyl penconazole water dispersible granules.
Embodiment 9 43% kresoxim-methyl penconazole suspending agents
Kresoxim-methyl 35%, penconazole 8%, alkyl benzene sulfonate calcium salt 4%, sodium lignin sulfonate 3%, DBSA 4%, silicone oil 0.1%, farming breast 600
#2%, xanthan gum 0.3%, and deionized water adds to 100%, mixes to make 43% kresoxim-methyl penconazole suspending agent.
Embodiment 10 30% kresoxim-methyl penconazole suspending agents
Kresoxim-methyl 24%, penconazole 6%, polycarboxylate 4%, soapberry powder 5%, silicone compound 0.1%, hydroxyethylcellulose 0.1%, farming breast 600
#2%, ethylene glycol 2%, deionized water add to 100%, mix to make 30% kresoxim-methyl penconazole suspending agent.
Embodiment 11 22% kresoxim-methyl penconazole suspending agents
Kresoxim-methyl 20%, penconazole 2%, polycarboxylate 4%, soapberry powder 5%, silicone compound 0.1%, hydroxyethylcellulose 0.1%, farming breast 1600
#1%, ethylene glycol 2%, deionized water add to 100%, mix to make 22% kresoxim-methyl penconazole suspending agent.
Embodiment 12 10% kresoxim-methyl penconazole suspending agents
Kresoxim-methyl 5%, penconazole 5%, polycarboxylate 2%, neopelex 2%, silicone compound 0.1%, polyethylene glycol 0.5%, farming breast 1600
#1%, glycerine 4%, deionized water add to 100%, mix to make 10% kresoxim-methyl penconazole suspending agent.
Implementation of an application example two: kresoxim-methyl and penconazole 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 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 kresoxim-methyl and penconazole shared ratio in combination
A is kresoxim-methyl
B is penconazole
Result of the test is as shown in table 1:
Table 1 kresoxim-methyl, penconazole and composite toxicity test analysis of results table to powdery mildew of cucumber thereof
As shown in Table 1, kresoxim-methyl, penconazole are to the EC of powdery mildew of cucumber
50Be respectively 28.61mg/L and 0.18mg/L.The virulence of kresoxim-methyl is lower than the virulence of penconazole.1: 1,3: 1,5: 1,7: 1,10: 1 synergy ratio of kresoxim-methyl and penconazole proportioning is respectively 1.56,1.86,2.09,1.70,1.55, illustrating that kresoxim-methyl and penconazole were mixed in the scope at 1: 1 to 10: 1 all shows obvious synergistic effect, wherein synergy ratio SR is maximum when kresoxim-methyl and penconazole weight ratio are 5: 1, and synergistic effect is the most obvious.
Embodiment uses three kresoxim-methyls and penconazole and the composite control cucumber anthracnose test of pesticide effectiveness thereof
This experimental establishment is at the Xian City, Shanxi Province Changan District, and test medicine is researched and developed, provided by Shaanxi means of agricultural production trade Co., Ltd of U.S. nation, contrast medicament 50% kresoxim-methyl suspending agent (commercial), 10% penconazole missible oil (commercial).
The front investigation of medicine cucumber anthracnose disease index, in the their early stage dispenser, afterwards for the second time dispenser on the 10th, dispenser is 2 times altogether, investigates disease indexs in 7 days, 15 days after for the second time dispenser and calculates preventive effect.Experimental result is as follows:
Table 2 kresoxim-methyl, penconazole and the composite control cucumber anthracnose test of pesticide effectiveness thereof
| Treatment agent | The preparation dosage | 7 days preventive effects (%) behind the medicine for the second time | 15 days preventive effects (%) behind the medicine for the second time |
| 80% kresoxim-methyl penconazole wetting powder | 5 g/acres | 88.35 | 95.12 |
| 70% kresoxim-methyl penconazole water dispersible granules | 6 g/acres | 89.64 | 95.62 |
| 43% kresoxim-methyl penconazole suspending agent | 15 g/acres | 92.76 | 96.32 |
| 50% kresoxim-methyl suspending agent | 25 g/acres | 74.13 | 73.14 |
| 10% penconazole missible oil | 15 g/acres | 73.51 | 80.12 |
As can be seen from Table 2, can effectively prevent and treat cucumber anthracnose after kresoxim-methyl and penconazole 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 powdery mildew of cucumber is had preferably preventive effect, preventive effect reaches more than 90%.
Implementation of an application example four kresoxim-methyls, penconazole and the composite apple mildew test of pesticide effectiveness of preventing and treating thereof
This experimental establishment is at Luochuan, Shaanxi Province suburban area, and test medicine is researched and developed, provided by Shaanxi means of agricultural production trade Co., Ltd of U.S. nation, contrast medicament 50% kresoxim-methyl suspending agent (commercial), 10% penconazole missible oil (commercial).
Investigation apple mildew 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, dispenser is 3 times altogether, investigates respectively disease index and calculates preventive effect in 7 days, 14 days, 30 days after the dispenser for the third time.Experimental result is as follows:
Table 3 kresoxim-methyl, penconazole 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 |
| 65% kresoxim-methyl penconazole wetting powder | 9000 times | 88.68 | 94.12 | 93.24 |
| 50% kresoxim-methyl penconazole water dispersible granules | 4000 times | 86.89 | 93.74 | 93.49 |
| 30% kresoxim-methyl penconazole suspending agent | 3500 times | 87.47 | 93.24 | 92.14 |
| 50% kresoxim-methyl suspending agent | 1800 times | 74.39 | 80.65 | 79.38 |
| 10% penconazole missible oil | 2500 times | 75.27 | 80.42 | 79.42 |
As can be seen from Table 3, can effectively prevent and treat apple mildew after kresoxim-methyl and penconazole 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 apple fallen leaves spot disease had preferably preventive effect, preventive effect reaches more than 90%.
Implementation of an application example five kresoxim-methyls and penconazole and the composite pear scab test of pesticide effectiveness of preventing and treating thereof
This experimental establishment is in area just outside a city gate town, 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 50% kresoxim-methyl suspending agent (commercial), 10% penconazole missible oil (commercial).
In the dispenser of pear scab their early stage, dispenser in per 7 days once is total to dispenser 2 times, and the investigation disease index was investigated respectively disease index in 7 days, 15 days after the 2nd dispenser before the dispenser, and the calculation correction preventive effect, and result of the test is as follows:
Table 4 kresoxim-methyl and penconazole and the composite pear scab test of pesticide effectiveness of preventing and treating thereof
| Treatment agent | Extension rate | 7 days preventive effects (%) behind the medicine for the second time | 15 days preventive effects (%) behind the medicine for the second time |
| 55% kresoxim-methyl penconazole wetting powder | 5500 times | 90.82 | 94.21 |
| 40% kresoxim-methyl penconazole water dispersible granules | 2800 times | 91.45 | 95.64 |
| 10% kresoxim-methyl penconazole suspending agent | 2000 times | 89.22 | 93.27 |
| 50% kresoxim-methyl suspending agent | 1800 times | 70.34 | 75.13 |
| 10% penconazole missible oil | 2500 times | 73.75 | 79.06 |
As can be seen from Table 4, kresoxim-methyl, penconazole can the effectively preventing pears scab, and control efficiency all is better than contrasting medicament, and dosage is little, in the test scope of medication to the target crop without harm.
Embodiment uses six kresoxim-methyls and penconazole and the composite control powdery mildew of strawberry test of pesticide effectiveness thereof
This experimental establishment is at the Xian City, Shanxi Province Changan District, and test medicine is researched and developed, provided by Shaanxi means of agricultural production trade Co., Ltd of U.S. nation, contrast medicament 50% kresoxim-methyl suspending agent (commercial), 10% penconazole missible oil (commercial).
The front investigation of medicine powdery mildew of strawberry disease index, in the their early stage dispenser, afterwards for the second time dispenser on the 10th, dispenser is 2 times altogether, investigates disease indexs in 7 days, 15 days after for the second time dispenser and calculates preventive effect.Experimental result is as follows:
Table 5 kresoxim-methyl, penconazole and the composite control powdery mildew of strawberry test of pesticide effectiveness thereof
| Treatment agent | The preparation dosage | 7 days preventive effects (%) behind the medicine for the second time | 15 days preventive effects (%) behind the medicine for the second time |
| 15% kresoxim-methyl penconazole wetting powder | 30 g/acres | 88.35 | 95.12 |
| 80% kresoxim-methyl penconazole water dispersible granules | 5 g/acres | 89.89 | 94.62 |
| 22% kresoxim-methyl penconazole suspending agent | 30 g/acres | 91.96 | 96.32 |
| 50% kresoxim-methyl suspending agent | 20 g/acres | 66.13 | 75.44 |
| 10% penconazole missible oil | 10 g/acres | 74.28 | 81.12 |
As can be seen from Table 5, can effectively prevent and treat powdery mildew of strawberry after kresoxim-methyl and penconazole 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.
Claims (5)
1. bactericidal composition that contains kresoxim-methyl and penconazole, it is characterized in that: the weight ratio of bactericidal composition effective active composition kresoxim-methyl and penconazole is 9: 1～7: 1 or 9: 2～2: 1.
2. the bactericidal composition that contains kresoxim-methyl and penconazole 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 kresoxim-methyl and penconazole 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 kresoxim-methyl and penconazole according to claim 1, it is characterized in that: bactericidal composition is made wetting powder, water dispersible granules or suspending agent.
5. the bactericidal composition that contains kresoxim-methyl and penconazole according to claim 1 is used for the purposes of control vegetables and fruit diseases, and described disease is powdery mildew, scab, anthracnose.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101380015A (en) * | 2008-08-22 | 2009-03-11 | 张少武 | Bactericidal composition containing penconazole and thiophonate-methyl |
| CN101536690A (en) * | 2009-04-30 | 2009-09-23 | 陕西标正作物科学有限公司 | Epoxiconazole and kresoxim-methyl sterilizing composite |
| CN101617659A (en) * | 2009-08-12 | 2010-01-06 | 深圳诺普信农化股份有限公司 | Compound sterilizing composition |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101380015A (en) * | 2008-08-22 | 2009-03-11 | 张少武 | Bactericidal composition containing penconazole and thiophonate-methyl |
| CN101536690A (en) * | 2009-04-30 | 2009-09-23 | 陕西标正作物科学有限公司 | Epoxiconazole and kresoxim-methyl sterilizing composite |
| CN101617659A (en) * | 2009-08-12 | 2010-01-06 | 深圳诺普信农化股份有限公司 | Compound sterilizing composition |
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