CN101779630B - Bactericidal composite containing phenol cycloheximide and dithianon - Google Patents
Bactericidal composite containing phenol cycloheximide and dithianon Download PDFInfo
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- CN101779630B CN101779630B CN2009102195855A CN200910219585A CN101779630B CN 101779630 B CN101779630 B CN 101779630B CN 2009102195855 A CN2009102195855 A CN 2009102195855A CN 200910219585 A CN200910219585 A CN 200910219585A CN 101779630 B CN101779630 B CN 101779630B
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- bacterium ketone
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Abstract
The invention relates to a bactericidal composite with synergy, which contains active ingredients of phenol cycloheximide and dithianon, wherein, the weight ratio of phenol cycloheximide to dithianon is 60-1:1-80, and auxiliary agents and excipients can be added into the effective and active ingredients to prepare wettable powder, water dispersible granule and suspending agent which are mainly used for preventing and treating multiple plant diseases of fruit trees and cruciferous vegetables.
Description
Technical field
The invention belongs to technical field of pesticide, relate to a kind of application of bactericidal composition on fruit diseases that contains phenol bacterium ketone and dithianon.
Technical background
Dithianon (dithianon) is the bactericide of BASF European Co.,Ltd's exploitation, and pure article are dark-brown crystalloid solid.Molecular formula is C
14H
4N
2O
2S
2, chemical name: 2,3-dinitrile-1,4-anthraquinone dithio.
Dithianon has multiaction mechanism, and to suppress a series of fungies mould through breathing with sulfur-containing group reaction and interference cell, causes disease dead at last, when tool is well protected activity, certain therapeutic activity arranged also.
Phenol bacterium ketone is the botanical fungicide that China has independent intellectual property right.Chemical name: 1-o-hydroxy-phenyl butanone, chemical structural formula:
Ginkgo is China characteristic plant, is called as the plant living fossil, strong stress resistance, and differing endangered by the disease worm, and big quantity research proof ginkgo contains the agricultural bactericidal material, and the match of China's researcher has been formulated new disinfectant use in agriculture phenol bacterium ketone with the sound reproduction means thus.Phenol bacterium ketone has protection, treats and roots out activity to most of diseases that pathomycetes such as Ascomycetes, Basidiomycetes, Fungi Imperfecti and oomycetes subclass cause; To crop, people, animal and beneficial organism safety; Pollution-free basically to environment, but phenol bacterium ketone is in application process, have that working concentration is higher, the unit are dosage big, the longevity of residure is short, the more high deficiency of use cost; And certain pesticide resistance risk is arranged, be unfavorable for environment sustainable development.The active ingredient of different effects mechanism is carried out composite, is to delay the effective ways that disease develops immunity to drugs, and according to the effect in the production application, judge this composite be synergistic effect or antagonism.Complex role is more significantly filled a prescription, and can obviously improve preventive effect, reduces the dosage of agricultural chemicals greatly, also can enlarge fungicidal spectrum, improves germicidal efficiency.Phenol bacterium ketone is different with the dithianon mechanism of action, and each other composite have good synergistic effect within the specific limits.And composite about phenol bacterium ketone and dithianon do not see relevant report at present at home and abroad as yet.
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 phenol bacterium ketone and dithianon.
The present invention realizes through following technical scheme:
A kind of bactericidal composition that contains phenol bacterium ketone and dithianon, wherein phenol bacterium ketone and dithianon percentage by weight are 60～1: 1～80.
The described bactericidal composition that contains phenol bacterium ketone and dithianon, wherein the percentage by weight of phenol bacterium ketone and dithianon is 50～5: 5～65.
The described bactericidal composition that contains phenol bacterium ketone and dithianon, wherein the percentage by weight of phenol bacterium ketone and dithianon is 40～10: 10～50.
The described bactericidal composition that contains phenol bacterium ketone and dithianon, wherein the percentage by weight of phenol bacterium ketone and dithianon is 30～15: 15～40.
The described bactericidal composition that contains phenol bacterium ketone and dithianon, wherein the effective active component content accounts for 1～95% of gross weight.
The described bactericidal composition that contains phenol bacterium ketone and dithianon, wherein the effective active component content accounts for 10～80% of gross weight.
The described bactericidal composition that contains phenol bacterium ketone and dithianon is processed wetting powder, water dispersible granules or suspending agent.
When processing wetting powder, composition comprises following constituent content: phenol bacterium ketone 1～80%, dithianon 1～80%, dispersant 5～10%, wetting agent 2～10%, filler 8～90%.
Phenol bacterium ketone, dithianon, dispersant, wetting agent, filler are mixed, in mixed cylinder, mix, after airslide disintegrating mill is pulverized, mix again, promptly can be made into phenol bacterium ketone dithianon wetting powder product.
When processing water dispersible granules, composition comprises following constituent content: phenol bacterium ketone 1～80%, dithianon 1～80%, dispersant 3～12%, wetting agent 1～8%, disintegrant 1～10%, binding agent 1～8%, filler 10～90%.
Phenol bacterium ketone, dithianon, dispersant, wetting agent, disintegrant, filler etc. are obtained the particle diameter that needs through comminution by gas stream together, add other auxiliary agents such as adhesive again, obtain the materials of granulating.It is interior through after granulation and the drying to expect that article are quantitatively sent the fluidized bed granulation dryer to, makes phenol bacterium ketone dithianon water-dispersion granule product.
Comprise following constituent content when composition is processed suspending agent: phenol bacterium ketone 1～50%, dithianon 1～50%, dispersant 2～10%, wetting agent 2～10%, antifoaming agent 0.1～1%, thickener 0.1～2%, antifreeze 0.1～8%, stabilizing agent 0%～3%, deionized water add to 100%.
Dispersant, wetting agent, antifoaming agent, thickener, antifreeze in the above-mentioned formulation material are mixed through high speed shear; Add phenol bacterium ketone, dithianon; Ball milling is 2～3 hours in ball mill, makes diameter of particle all below 5 μ m, makes phenol bacterium ketone dithianon 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 binding agent is selected from: one or more in gum Arabic, white dextrin, methylcellulose, PAA, polyvinylpyrrolidone, PVPP, polyethylene glycol, the polyvinyl alcohol.
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 spot defoliation, scab, ring spot, the powdery mildew of control fruit tree; Brassicaceous vegetable powdery mildew, downy mildew, anthracnose etc.
Beneficial effect of the present invention: (1) present composition effective active composition phenol bacterium ketone and dithianon belong to the bactericide of two kinds of different effects mechanism, and both are mixed each other and can produce conflict, and the ability suspension of pesticide resistance generation; (2) present composition has good synergistic effect within the specific limits, and preventive effect is higher than single agent, and dosage is little.(3) not with an organic solvent, to target crop, people and animals, Environmental security.
Embodiment
The present invention is explained further that 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.Pass through Toxicity Determination earlier, the synergy ratio (SR) after clear and definite two kinds of medicaments are composite by a certain percentage, SR＜0.5 is an antagonism, and 0.5≤SR≤1.5 are summation action, and SR＞1.5 are synergistic effect, on this basis, carry out field trial again.
Practice example one and implement the prescription example
Embodiment 180% phenol bacterium ketone dithianon wetting powder
Phenol bacterium ketone 50%, dithianon 30%, polycarboxylate 5%, tea are withered 3%, spaonin powder 2%, bentonite 10%, and mixture carries out comminution by gas stream, makes 80% phenol bacterium ketone dithianon wetting powder.
Embodiment 265% phenol bacterium ketone dithianon wetting powder
Phenol bacterium ketone 15%, dithianon 50%, alkyl benzene sulfonate calcium salt 4%, lignosulfonates 4%, white carbon 8%, kaolin 19%, mixture carries out comminution by gas stream, makes 65% phenol bacterium ketone dithianon wetting powder.
Embodiment 345% phenol bacterium ketone dithianon wetting powder
Phenol bacterium ketone 10%, dithianon 35%, lignosulfonates 5%, silkworm excrement 3%, white carbon 8%, attapulgite 39%, mixture carries out comminution by gas stream, makes 45% phenol bacterium ketone dithianon wetting powder.
Embodiment 430% phenol bacterium ketone dithianon wetting powder
Phenol bacterium ketone 20%, dithianon 10%, lauryl sodium sulfate 4%, wetting and penetrating agent F3%, white carbon 8%, bentonite 55%, mixture carries out comminution by gas stream, makes 30% phenol bacterium ketone dithianon wetting powder.
Embodiment 580% phenol bacterium ketone dithianon water-dispersion granule
Phenol bacterium ketone 15%, dithianon 65%, alkyl benzene sulfonate calcium salt 3%, lignosulfonates 3%, lauryl sodium sulfate 4%, ammonium sulfate 2%, starch 8%, the mixed 80% phenol bacterium ketone dithianon water-dispersion granule that gets.
Embodiment 660% phenol bacterium ketone dithianon water-dispersion granule
Phenol bacterium ketone 40%, dithianon 20%, naphthalene sulfonic acid-formaldehyde condensation product sodium salt 3%, polyoxyethylene carboxylate 3%, soapberry powder 4%, sodium bicarbonate 3%, starch 10%, kaolin 17%, the mixed 60% phenol bacterium ketone dithianon water-dispersion granule that gets.
Embodiment 740% phenol bacterium ketone dithianon water-dispersion granule
Phenol bacterium ketone 30%, dithianon 10%, polycarboxylate 5%, Nekal BX 6%, succinic acid 4%, precipitated calcium carbonate 25%, starch 20%, the mixed 40% phenol bacterium ketone dithianon water-dispersion granule that gets.
Embodiment 815% phenol bacterium ketone dithianon water-dispersion granule
Phenol bacterium ketone 4%, dithianon 11%, alkylphenol-polyethenoxy are phonetic 5%, DBSA 2%, starch 20%, diatomite 58%, mixed 15% phenol bacterium ketone dithianon water-dispersion granule.
Embodiment 950% phenol bacterium ketone dithianon suspending agent
Phenol bacterium ketone 10%, dithianon 40%, polycarboxylate 4%, soapberry powder 3%, DBSA 4%, silicone oil 0.1%, xanthan gum 0.3%, deionized water adds to 100%, the mixed 50% phenol bacterium ketone dithianon suspending agent that gets.
Embodiment 1035% phenol bacterium ketone dithianon suspending agent
Phenol bacterium ketone 25%, dithianon 10%, alkyl benzene sulfonate calcium salt 4%, sodium lignin sulfonate 5%, silicone compound 0.1%, hydroxyethylcellulose 0.1%, ethylene glycol 2%, deionized water add to 100%, the mixed 35% phenol bacterium ketone dithianon suspending agent that gets.
Embodiment 1120% phenol bacterium ketone dithianon suspending agent
Phenol bacterium ketone 5%, dithianon 15%, polyoxyethylene carboxylate 4%, neopelex 5%, silicone compound 0.1%, polyvinyl alcohol 0.4%, propane diols 2%, deionized water add to 100%, the mixed 20% phenol bacterium ketone dithianon suspending agent that gets.
Embodiment 1210% phenol bacterium ketone dithianon suspending agent
Phenol bacterium ketone 2%, dithianon 8%, polycarboxylate 2%, spaonin powder 2%, silicone compound 0.1%, polyethylene glycol 0.5%, glycerine 4%, deionized water add to 100%, the mixed 10% phenol bacterium ketone dithianon suspending agent that gets.
Practice example two: phenol bacterium ketone and dithianon are composite to the cucumber downy mildew Toxicity Determination
Test medicine provides by Shaanxi means of agricultural production trade Co., Ltd of U.S. nation.
After the effective inhibition concentration scope of each medicament was confirmed in prerun, each medicament was established 5 dosage respectively by active constituent content and is handled, and established the clear water contrast.Carry out with reference to " agricultural chemicals indoor bioassay test rule bactericide ", adopt the mycelial growth rate method to measure the virulence of medicament cucumber downy mildew.Measure colony diameter with the right-angled intersection method behind the 72h, calculate and respectively handle clean amount of growth, mycelial growth inhibition rate.
Clean amount of 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 the EC of every kind of medicament thus
50Value.Calculate the different proportioning synergy ratios (SR) of two medicaments according to the Wadley method simultaneously, SR＜0.5 is an antagonism, and 0.5≤SR≤1.5 are summation action, and SR＞1.5 are synergistic effect.Computing formula is following:
Wherein: a, b are respectively phenol bacterium ketone and dithianon shared ratio in combination
A is a phenol bacterium ketone
B is a dithianon
Result of the test is as shown in table 1:
Table 1 phenol bacterium ketone, dithianon and composite toxicity test analysis of results table thereof to cucumber downy mildew
Can know that by table 1 phenol bacterium ketone, dithianon are to the EC of cucumber downy mildew
50Be respectively 7.16mg/L and 8.78mg/L.5: 1,3: 1,1: 1,1: 3,1: 5 synergy ratio of phenol bacterium ketone and dithianon proportioning is respectively 1.52,1.69,1.92,1.64,1.50; Explaining that phenol bacterium ketone and dithianon were mixed in the scope at 5: 1～1: 5 all shows obvious synergistic effect; Wherein synergy ratio SR is maximum when phenol bacterium ketone and dithianon weight ratio are 1: 1, and synergistic effect is the most obvious.
Embodiment uses triphenol bacterium ketone and the dithianon and the composite control Chinese cabbage downy mildew test of pesticide effectiveness thereof
This EE is the Hanzhong City suburb in 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 66% dithianon water-dispersion granule (commercial), 20% mycophenolic ketone aqueous emulsion.
The preceding investigation of the medicine Chinese cabbage downy mildew state of an illness, in the dispenser for the first time of state of an illness initial stage, dispenser in per 7 days once is total to dispenser 2 times, investigates disease indexs in 7 days, 15 days after the dispenser for the second time and calculates preventive effect.Experimental result is as follows:
Table 2 phenol bacterium ketone, dithianon and the composite control Chinese cabbage downy mildew test of pesticide effectiveness thereof
| Handle medicament | 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% phenol bacterium ketone dithianon wetting powder | 5 gram/mus | 88.23 | 94.21 |
| 60% phenol bacterium ketone dithianon water-dispersion granule | 6 gram/mus | 86.89 | 93.62 |
| 20% phenol bacterium ketone dithianon suspending agent | 30 gram/mus | 86.35 | 92.73 |
| 66% dithianon water-dispersion granule | 30 gram/mus | 69.25 | 76.21 |
| 20% mycophenolic ketone aqueous emulsion | 18 gram/mus | 68.64 | 75.28 |
Can be found out that by table 2 can effectively prevent and treat Chinese cabbage downy mildew after phenol bacterium ketone and dithianon are composite, control efficiency all is superior to contrasting medicament, the lasting period is long.In the test scope of medication, the target crop is had no adverse effects.
Practice example four: phenol bacterium ketone and dithianon and the composite pear scab test of pesticide effectiveness of preventing and treating thereof
This EE is in suburb, Liquan 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 66% dithianon water-dispersion granule (commercial), 20% mycophenolic ketone aqueous emulsion.
The investigation pear scab state of an illness before the medicine, in the dispenser for the first time of state of an illness initial stage, dispenser in per 7 days once is total to dispenser 3 times.Investigated the pears disease index respectively and calculated preventive effect in 7 days, 14 days, 30 days after the dispenser for the third time.Experimental result is as follows:
Table 3 phenol bacterium ketone, dithianon and the composite pear scab test of pesticide effectiveness of preventing and treating thereof
| Handle medicament | 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 |
| 45% phenol bacterium ketone dithianon wetting powder | 4000 times | 84.57 | 93.05 | 92.44 |
| 15% phenol bacterium ketone dithianon water-dispersion granule | 2000 times | 85.76 | 94.26 | 93.67 |
| 35% phenol bacterium ketone dithianon suspending agent | 6000 times | 85.13 | 92.23 | 91.74 |
| 66% dithianon water-dispersion granule | 2000 times | 76.25 | 78.30 | 67.38 |
| 20% mycophenolic ketone aqueous emulsion | 4000 times | 75.36 | 77.42 | 62.42 |
Can find out by table 3, ability effectively preventing pear scab after phenol bacterium ketone and dithianon are composite, control efficiency all is superior to contrasting medicament, and the lasting period is long.In the test scope of medication, the target crop there is not harm.
Practice example five: phenol bacterium ketone, dithianon and the composite control cucumber anthracnose test of pesticide effectiveness thereof
This EE is in the Gaoling County, Xian City, Shanxi Province, and test medicine is researched and developed, provided by Shaanxi means of agricultural production trade Co., Ltd of U.S. nation, contrast medicament 66% dithianon water-dispersion granule (commercial), 20% mycophenolic ketone aqueous emulsion.
Investigation cucumber anthracnose 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 disease index respectively and calculates preventive effect in 7 days, 14 days after the dispenser for the second time.Experimental result is as follows:
Table 4 phenol bacterium ketone, dithianon and the composite control cucumber anthracnose test of pesticide effectiveness thereof
| Handle medicament | The preparation dosage | 7 days preventive effects (%) behind the last medicine | 14 days preventive effects (%) behind the last medicine |
| 65% phenol bacterium ketone dithianon wetting powder | 8 gram/mus | 89.52 | 90.85 |
| 40% phenol bacterium ketone dithianon water-dispersion granule | 8 gram/mus | 90.25 | 91.75 |
| 10% phenol bacterium ketone dithianon suspending agent | 60 gram/mus | 89.27 | 91.54 |
| 66% dithianon water-dispersion granule | 30 gram/mus | 63.27 | 69.74 |
| 20% mycophenolic ketone aqueous emulsion | 20 gram/mus | 67.28 | 77.45 |
Can find out that by table 4 can effectively prevent and treat cucumber anthracnose after phenol bacterium ketone and dithianon are composite and take place, control efficiency all is superior to contrasting medicament, in this test scope of medication, the target crop is had no adverse effects, and powdery mildew of cucumber is had good preventive effect.
Practice example six: phenol bacterium ketone and dithianon and the composite control alternaria leaf spot of apple test of pesticide effectiveness thereof
This EE 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 66% dithianon water-dispersion granule (commercial), 20% mycophenolic ketone aqueous emulsion.
In the dispenser of apple tree their early stage, dispenser in per 7 days once is total to dispenser 2 times, and the investigation disease index was investigated disease index respectively in 7 days, 15 days after the dispenser for the second time before the dispenser, and the calculation correction preventive effect, and result of the test is following:
Table 5 phenol bacterium ketone and dithianon and the composite control alternaria leaf spot of apple test of pesticide effectiveness thereof
| Handle medicament | Extension rate | 7 days preventive effects (%) behind the last medicine | 15 days preventive effects (%) behind the last medicine |
| 30% phenol bacterium ketone dithianon wetting powder | 4000 times | 89.62 | 94.78 |
| 80% phenol bacterium ketone dithianon water-dispersion granule | 5000 times | 90.16 | 95.64 |
| 50% phenol bacterium ketone dithianon suspending agent | 3000 times | 89.52 | 92.55 |
| 66% dithianon water-dispersion granule | 2500 times | 74.37 | 82.38 |
| 20% mycophenolic ketone aqueous emulsion | 4500 times | 75.98 | 83.06 |
Can find out by table 5, phenol bacterium ketone, dithianon ability effectively preventing alternaria leaf spot of apple, control efficiency all is superior to contrasting medicament, and dosage is little, in the test scope of medication, the target crop is not had harm.
Claims (4)
1. a bactericidal composition that contains phenol bacterium ketone and dithianon is characterized in that the weight ratio of bactericidal composition effective active composition phenol bacterium ketone and dithianon is 5: 1～1: 5.
2. the bactericidal composition that contains phenol bacterium ketone and dithianon according to claim 1 is characterized in that: wherein the effective active component content accounts for 1～95% of gross weight.
3. the bactericidal composition that contains phenol bacterium ketone and dithianon according to claim 2 is characterized in that: wherein the effective active component content accounts for 10～80% of gross weight.
4. the bactericidal composition that contains phenol bacterium ketone and dithianon according to claim 1 is characterized in that: bactericidal composition is processed wetting powder, water dispersible granules or suspending agent.
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|---|---|---|---|
| CN2009102195855A CN101779630B (en) | 2009-12-18 | 2009-12-18 | Bactericidal composite containing phenol cycloheximide and dithianon |
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| CN101779630A CN101779630A (en) | 2010-07-21 |
| CN101779630B true CN101779630B (en) | 2012-11-07 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005041653A2 (en) * | 2003-10-23 | 2005-05-12 | Bayer Cropscience Aktiengesellschaft | Synergistic fungicidal active combinations |
| CN101496520A (en) * | 2009-03-11 | 2009-08-05 | 陕西蒲城县美邦农药有限责任公司 | Dithianon water-dispersion granule |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005041653A2 (en) * | 2003-10-23 | 2005-05-12 | Bayer Cropscience Aktiengesellschaft | Synergistic fungicidal active combinations |
| CN101496520A (en) * | 2009-03-11 | 2009-08-05 | 陕西蒲城县美邦农药有限责任公司 | Dithianon water-dispersion granule |
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