CN103766386A - Suspended seed coating containing dinotefuran and pyraclostrobin and preparation method thereof - Google Patents
Suspended seed coating containing dinotefuran and pyraclostrobin and preparation method thereof Download PDFInfo
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- CN103766386A CN103766386A CN201410037027.8A CN201410037027A CN103766386A CN 103766386 A CN103766386 A CN 103766386A CN 201410037027 A CN201410037027 A CN 201410037027A CN 103766386 A CN103766386 A CN 103766386A
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- pyraclostrobin
- coating agent
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Abstract
The invention discloses a suspended seed coating. According to the suspended seed coating, active components include dinotefuran and pyraclostrobin. The suspended seed coating has the characteristics of good film forming property, uniformity in coating, high suspension rate, safety, high efficiency, low toxin, convenience in use and the like; the environmental pollution can be reduced, the utilization rate of pesticides is improved and the usage amount of the pesticide is reduced; the suspended seed coating is widely applied to processing seeds of crops such as paddy rice, wheat, corns, soybeans and peanuts.
Description
Technical field
The invention belongs to pesticide field, be specifically related to a kind of suspension seed-coating agent take MTI-446 and pyraclostrobin as active component and preparation method thereof.
Background technology
MTI-446 have tag, stomach toxicity, strong, the quick-acting height of absorption in its root, lasting period in long 3-4 week, insecticidal spectrum are wide, and sucking insect is had to excellent preventive effect, have shown very high insecticidal activity at very low dosage.Be mainly used in preventing and treating aphid, leafhopper, plant hopper, thrips, aleyrodid and the resistant strain thereof in the various crop such as paddy rice, wheat, corn, soybean, peanut, coleoptera, diptera and Lepidoptera, diptera, beetle order and total wing order insect had efficiently simultaneously.
Pyraclostrobin is a kind of wide-spectrum bactericide, by stoping electronics to shift in cytochrome are synthetic, multiple fungal disease is all had to prevention and result for the treatment of well, its former medicine low toxicity, effect is rapid, lasting medicine, under recommended dose, to crop safety, and can bring out to a certain extent plant and show potential resistance against diseases.Pyraclostrobin missible oil shows that through field control effectiveness test result powdery mildew of cucumber, downy mildew and banana freckle, leaf spot are had to good control efficiency.
Rice thrips is a kind of common rice grub, and life cycle is short, and generation is many, generation overlap, and newly hatched larvae concentrates on auricle, tip of a leaf place, how on the tender lobus cardiacus of children, to cause harm.At seeding stage, tillering stage and the panicle spike primordium differentiation stage of paddy rice, thrips is seriously caused harm, especially late rice rice seedling bed and the Honda initial stage paddy rice be injured more serious, often withered in flakes.
Bakanae disease of rice claims again excessive growth disease, and sick grain is broadcast and often do not germinateed and maybe can not be unearthed afterwards.The disease of falling ill seedling stage seedling is thinner and taller than strong seedling, and blade leaf sheath is elongated, and leaf look yellowish, and root system development is bad, and the sick seedling of part is dead before transplanting.The effective means of preventing and treating bakanae disease is to carry out seed treatment before sowing.
For above-mentioned damage by disease and insect and paddy rice illness, at present common solution can only reach the object of desinsection or diseases prevention conventionally, cannot integrated control, and large to the consumption of agricultural chemicals, application cost is high; Even if different medicaments is mixed, also be to use separately respectively repeatedly hydrojet, due to the difference of physicochemical property between various common medicine components, simple MTI-446 and pyraclostrobin are mixed while using in same bucket and will soon occur the muddy and precipitation of layering to half an hour in about ten minutes, cannot use, therefore in prior art, the use of these two kinds of medicaments is remained and first sprays one and then spray another kind every a period of time again, not only waste time and energy, and complicated operation.
Summary of the invention
For the defect of prior art, the invention discloses a kind of suspension seed-coating agent, take MTI-446 and pyraclostrobin as active ingredient, coordinate auxiliary material to be prepared into and can stablize the suspending agent of preserving and using, can be applicable to seedling stage and the underground extermination of disease and insect pest of wheat, corn, soybean and peanut and other crops simultaneously, be particularly useful for the extermination of disease and insect pest of paddy rice, there is the effect of integrated control, have the effect of strong seedling concurrently.
For achieving the above object, the present invention is achieved through the following technical solutions:
A suspension seed-coating agent that contains MTI-446 and pyraclostrobin, active ingredient is MTI-446 and pyraclostrobin, adjunct ingredient comprises emulsifier, dispersant, film forming agent, thickener, stabilizing agent, defoamer, water.
Above-mentioned water, preferably distilled water, the interference of impurity component to reagent in effective anti-sealing, the water of other type is also feasible after filtering.
By above-mentioned composition, active component in the present invention, by the peptizaiton of dispersant, collaborative lower MTI-446 and pyraclostrobin can being scattered in distilled water equably with the solid of nominal particle size of other auxiliary materials, and mix by film forming agent, thickener, stabilizing agent etc., form stable preparation, thereby provide one to be widely used in crops, particularly the pesticidal disease-prevention suspending seed coating agent of paddy rice Dressing.
In suspension seed-coating agent of the present invention, the content of each composition can be adjusted as required accordingly, preferably, each component content is: MTI-446 5-40%, pyraclostrobin 10-40%, emulsifier 2-5%, dispersant 3-10%, film forming agent 0.1-8%, thickener 0.1-3%, stabilizing agent 0.1-10%, defoamer 0.1-2%, water is surplus.
Wherein, emulsifier used makes active ingredient dispersed in water, and the common emulsifier of pesticide field all can be used for the present invention, preferably agriculture breast 602 (other as 601,603 etc. also can), for nonionic surface active agent, its emulsifiability is good.
Wherein, dispersant used is used for promoting wetting dispersion between active ingredient particle, prevent that phase inter coagulation from causing unstable precipitation, dispersant of the present invention preferably adopts one or more the mixture in SP-SC3280, SP-SC397, phosphoric acid ester (as YUS-FS3000), aryl alkyl APEO (as YUS-FSl), polycarboxylate (as YUS-WG5), neopelex, lauryl sodium sulfate, sodium lignin sulfonate and lignin sodium iodate.
Wherein, film forming agent used makes active component concentrate on the surface of the seed, reduce the diffusion of agricultural chemicals in environment and the contact to non-target, reduce the infringement of agricultural chemicals to environment, film forming agent of the present invention is selected from xanthans, methylcellulose, sodium carboxymethylcellulose, carboxylic propyl methocel, carboxy-propyl cellulose, polyvinyl alcohol, polyvinyl acetate, the mixture of one or more in polyethylene glycol and polyacrylamide, above-mentioned film forming agent can guarantee that institute's ready-made clothes film is ventilative, good water permeability, seed is germination and growth normally, can guarantee that again institute's ready-made clothes film is insoluble in water, in clothing film, active component can slowly discharge, efficiency time is long.
Wherein, thickener used is used for improving the viscosity of dispersion medium, reduces the settling velocity of particle, improve the stability of preparation, the present invention's thickener used be xanthans and/or Magnesiumaluminumsilicate (as PTIN-Z08, PTIN-Z18, PTIN-L58, PTIN-L68 etc.).
Wherein, defoamer used produces a large amount of foams while being used for preventing from using, is selected from one or more the mixture in n-octyl alcohol, silicone oil and fatty acid compound.
Wherein, stabilizing agent used is used for improving the chemical stability of active ingredient and the physical stability of preparation, and the present invention's stabilizing agent used is selected from one or more the mixture in bentonite, adjacent phenyl glycidyl ether, butyl glycidyl ether, cresyl glycidyl ether, Sodium Benzoate, sodium sorbate, epoxidised soybean oil, linseed oil, eugenol, benzenediol.
In order to improve stability and the safety of product under multiple storage conditions, in adjunct ingredient, also can comprise colouring agent, antifreezing agent.
Wherein, colouring agent used is used for improving the safety that suspension seed-coating agent uses, and preferably adopts basic rhodamine.
Wherein, antifreezing agent used is used for improving the stability of preparation during low-temperature storage, prevents that preparation from separating out because low temperature moisture freezes, and the present invention's antifreezing agent used is selected from one or more the mixture in ethylene glycol, polyethylene glycol, propane diols, urea.
When using when mentioned component, antifreezing agent consumption is 1%～5% conventionally, colouring agent consumption is 0.1%～3%.
Further, the invention also discloses the preparation method of above-mentioned suspension seed-coating agent, MTI-446, pyraclostrobin are mixed with adjunct ingredient, in sand mill, mill and make average grain diameter not higher than 5um, filter and get final product.
Preferably, grinding time is 3-6 hour, and average grain diameter is `5um.
In above-mentioned preparation process, get final product disposable grinding, also can repeatedly grind and make products therefrom particle more even, preferably, first MTI-446 and pyraclostrobin are watered in sand mill and are ground, after 2 hours, emulsifier, dispersant, thickener are added in sand mill and ground, film forming agent, stabilizing agent, defoamer and other auxiliary material of retelling by 3-3.5 hour to be ground adds in sand mill and grinds 0.5 hour again, makes particle diameter all below 5um, and filtration can make.
By above-mentioned improvement, seed coat agent disclosed by the invention is composite insecticidal bactericide, and stable chemical nature, by adding film forming agent, for seed pelleting, has the lasting period long, safety and low toxicity, effect outstanding feature.Can be for the soil insect of the various crop such as control paddy rice, wheat, corn, soybean, peanut, and can prevent and treat sucking pest and the sprout term diseases such as aphid in seedling stage, thrips.
Embodiment
In order further to understand the present invention, below in conjunction with embodiment, the present invention is described in detail.According to the present invention, according to controlling object, a situation arises determines suitable consumption, and conventionally formulation rate is that the weight ratio of seed coat agent and seed is that about 1:50, other consumption is also feasible.
Embodiment 1:15% MTI-446 pyraclostrobin suspension seed-coating agent
Each constituent content is: the former medicine 5% of MTI-446, the former medicine 10% of pyraclostrobin, emulsifier agriculture breast 6022%, SP-SC3280 (Jiangsu Qing Yu Chemical Industry Science Co., Ltd) 4%, stabilizing agent benzenediol 2%, film forming agent xanthans 0.2%, defoamer n-octyl alcohol 1%, antifreezing agent urea 2%, colouring agent basic rhodamine 0.5% for dispersant, add water and complement to 100%.After mixing, in sand mill, grind 3-4 hour, average grain diameter is lower than 5um.
Embodiment 2:25% MTI-446 pyraclostrobin suspension seed-coating agent
Each constituent content is: the former medicine 5% of MTI-446, the former medicine 20% of pyraclostrobin, emulsifier agriculture breast 6022%, phosphoric acid ester (YUS-FS3000) 4% and polycarboxylate (YUS-WG5) 2%, stabilizing agent benzenediol 2%, film forming agent xanthans 0.5%, defoamer silicone oil 1%, antifreezing agent urea 2%, colouring agent basic rhodamine 0.5% for dispersant, add water and complement to 100%.After mixing, in sand mill, grind 3-4 hour, particle diameter is at 1-5um.Embodiment 3:40% MTI-446 pyraclostrobin suspension seed-coating agent
Each constituent content is: the former medicine 15% of MTI-446, the former medicine 25% of pyraclostrobin, emulsifier agriculture breast 6022%, dispersant dodecyl sodium sulfate 10%, stabilizing agent benzenediol 2%, film forming agent carboxymethyl cellulose 3%, defoamer n-octyl alcohol 1%, antifreeze glycol 2%, colouring agent basic rhodamine 0.5%, add water and complement to 100%.After mixing, in sand mill, grind 3-4 hour, particle diameter is 2-3um.
Embodiment 4:50% MTI-446 pyraclostrobin suspension seed-coating agent
Each constituent content is: the former medicine 20% of MTI-446, the former medicine 30% of pyraclostrobin, emulsifier agriculture breast 6022%, SP-SC3280 (Jiangsu Qing Yu Chemical Industry Science Co., Ltd) 8%, stabilizing agent benzenediol 2%, film forming agent xanthans 0.2%, defoamer n-octyl alcohol 1%, antifreezing agent urea 2%, colouring agent basic rhodamine 0.5% for dispersant, add water and complement to 100%.
Mix rear 10% the water first MTI-446 and pyraclostrobin converted grinds in sand mill, after 2 hours, emulsifier, dispersant, thickener are added in sand mill and ground, film forming agent, stabilizing agent, defoamer and other auxiliary material of retelling by 3.5 hours to be ground adds in sand mill and grinds 0.5 hour again, particle diameter is 1-3um, and filtration can make.
The product that above-described embodiment is obtained, detects, and result gathers as follows:
1, experiment material
1.1 medicaments: 25% MTI-446 pyraclostrobin suspension seed-coating agent
1.2 experiment purposes: by indoor germination rate and germination vigor test, and field control effectiveness test, impact and the field seeding stage vermins-proof effect of clear and definite 25% MTI-446 pyraclostrobin suspension seed-coating agent on percentage of seedgermination.
2, experimental condition
2.1 subjects, crop and kind are selected: subjects is rice thrips (Chloethrips oryzae (Wil.)), and trial crops is paddy rice, and rice varieties is good morning 17 in being.
2.2 environmental conditions: germinating percentage at lab is in agricultural college of Agricultural University Of Jiangxi Pesticide Science toxicological experiment chamber, and field control effectiveness test field is in Agricultural University Of Jiangxi proving ground, and soil fertility is medium.
3, experimental scheme and arrangement
3.1 tests are processed and design: germination rate and germination vigor test, and field control effectiveness test is all established 5 processing, as shown in following table 1,2:
Table 1 indoor germination rate and the processing of germination vigor pharmacy test
| Process numbering | Medicament | Amount of formulation pesticide-seeds ratio |
| 1 | 25% MTI-446 pyraclostrobin suspension seed-coating agent | 1∶50 |
| 2 | 25% MTI-446 pyraclostrobin suspension seed-coating agent | 1∶25 |
| 3 | 25% MTI-446 pyraclostrobin suspension seed-coating agent | 1∶12.5 |
| 4 | 25% MTI-446 pyraclostrobin suspension seed-coating agent | 1∶6.25 |
| 5 | Blank | - |
The processing of table 2 field efficacy pharmacy test
| Process numbering | Medicament | Amount of formulation pesticide-seeds ratio |
| 1 | 25% MTI-446 pyraclostrobin suspension seed-coating agent | 1∶100 |
| 2 | 25% MTI-446 pyraclostrobin suspension seed-coating agent | 1∶50 |
| 3 | 25% MTI-446 pyraclostrobin suspension seed-coating agent | 1∶25 |
| 4 | 25% MTI-446 pyraclostrobin suspension seed-coating agent | 1∶12.5 |
| 5 | Blank | ? |
[0049]3.1.2 experimental scheme: indoor test and field control effectiveness test are all established 3 repetitions, and field control effectiveness test community area is 1 square metre.
4, test method
4.1 seed dressing methods: first selected full seed, each puts into culture dish after processing and weighing up according to pharmacopoeia ratio, cover lid, fully shake, until seed pelleting is even, dries rear preparation seed soaking, vernalization.
5, investigation method
5.1 indoor germination rates and germination vigor investigation: 50 full seeds are chosen separately in every processing, in the indoor germination test of carrying out, investigation germination rate and germination vigor.
5.2 field efficacy investigation: in the 3 leaf phases of rice seedling bed, carry out rice thrips investigation in conjunction with field seedling, 5 method investigation, investigate 0.1 square metre, calculate the thrips quantity of every for every.
Wherein, vermins-proof effect (%)=[(check plot borer population-treatment region borer population)/check plot borer population] × 100
6, result of the test:
6.1 indoor germination result of the tests are as shown in table 3.
Germination result in table 3 chambers
As can be seen from Table 3, the each processing of suspension seed-coating agent of the present invention all has no adverse effects to paddy rice germination rate and germination vigor.
6.2 field efficacy investigation results are as shown in table 4:
Table 4: respectively process field efficacy
As can be seen from Table 4, suspension seed-coating agent of the present invention is in 1: 100,1: 50 situation at pesticide-seeds ratio, and the average preventive effect of rice thrips is respectively to 53.74%, 70.22%, and along with the increase of using dosage, preventive effect improves thereupon.In addition, chemicals treatment district find no bakanae disease.
7, experiment conclusion
Can find out from above test data, aspect seed sprouting, each dosage is processed lower seed and can normally be germinateed, without the impact of poisoning; Aspect the test of pesticide effectiveness, seed coat agent of the present invention to seedling stage rice thrips there is good effect, and along with the increase preventive effect of pharmaceutical quantities obviously strengthens, be with the promotion of good sense; Chemicals treatment district also finds no bakanae disease.
In research process, applicant has also carried out above-mentioned test to 15%, 40%, 50% MTI-446 pyraclostrobin suspension seed-coating agent, demonstrate and the similarly impact on percentage of seedgermination and field seeding stage vermins-proof effect of 25% MTI-446 pyraclostrobin suspension seed-coating agent, illustrate that suspension seed-coating agent of the present invention all has good integrated pest prevention and control effect under each concentration.
Claims (10)
1. contain a suspension seed-coating agent for MTI-446 and pyraclostrobin, it is characterized in that active ingredient is MTI-446 and pyraclostrobin, adjunct ingredient comprises emulsifier, dispersant, film forming agent, thickener, stabilizing agent, defoamer, water.
2. suspension seed-coating agent according to claim 1, it is characterized in that each composition counts with mass content: MTI-446 5-40%, pyraclostrobin 10-40%, emulsifier 2-5%, dispersant 3-10%, film forming agent 0.1-8%, thickener 0.1-3%, stabilizing agent 0.1-10%, defoamer 0.1-2%, water is surplus.
3. suspension seed-coating agent according to claim 1, is characterized in that adjunct ingredient also comprises antifreezing agent and colouring agent.
4. suspension seed-coating agent according to claim 1, is characterized in that described dispersant is selected from one or more the mixture in SP-SC3280, SP-SC397, phosphoric acid ester, aryl alkyl APEO, polycarboxylate, neopelex, lauryl sodium sulfate, sodium lignin sulfonate and lignin sodium iodate.
5. suspension seed-coating agent according to claim 1, is characterized in that described film forming agent is selected from one or more the mixture in yellow glue, methylcellulose, sodium carboxymethylcellulose, carboxylic propyl methocel, carboxy-propyl cellulose, polyvinyl alcohol, polyvinyl acetate, poly-diethanol and polyacrylamide.
6. suspension seed-coating agent according to claim 1, is characterized in that described thickener is selected from xanthans and/or Magnesiumaluminumsilicate.
7. suspension seed-coating agent according to claim 1, is characterized in that described stabilizing agent is selected from one or more the mixture in bentonite, adjacent phenyl glycidyl ether, butyl glycidyl ether, cresyl glycidyl ether, Sodium Benzoate, sodium sorbate, epoxidised soybean oil, linseed oil, eugenol and benzenediol.
8. suspension seed-coating agent according to claim 1, is characterized in that described defoamer is selected from one or more the mixture in n-octyl alcohol, silicone oil and fatty acid compound.
9. a preparation method for the suspension seed-coating agent of above-mentioned arbitrary claim, is characterized in that MTI-446, pyraclostrobin to mix with adjunct ingredient, mills and make average grain diameter not higher than 5um in sand mill, filters and get final product.
10. preparation method according to claim 9, is characterized in that grinding time is 3-6 hour, and average grain diameter is 1-5um.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104542726A (en) * | 2014-12-24 | 2015-04-29 | 青岛锐志农业技术服务有限公司 | Wilforine and pyraclostrobin seed-dressing suspension and preparation method thereof |
| CN104892258A (en) * | 2015-06-18 | 2015-09-09 | 张家港市五湖新材料技术开发有限公司 | Starch-based complex seed-coating agent |
| CN106508950A (en) * | 2016-11-04 | 2017-03-22 | 淄博市农业科学研究院 | Compound seed coating agent containing pyraclostrobin, tebuconazole and dinotefuran, and application thereof |
| CN106508949A (en) * | 2016-11-04 | 2017-03-22 | 淄博市农业科学研究院 | Compounded seed coating agent containing pyraclostrobin, thifluzamide and dinotefuran and application |
| CN110301451A (en) * | 2018-03-20 | 2019-10-08 | 江苏龙灯化学有限公司 | A kind of crop protection agents |
| WO2020078145A1 (en) * | 2018-10-15 | 2020-04-23 | 深圳诺普信农化股份有限公司 | Dinotefuran oil-based suspension concentrate and preparation method therefor |
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| CN103461370A (en) * | 2013-08-16 | 2013-12-25 | 江西农业大学 | Suspension seed coating agent and preparing method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104542726A (en) * | 2014-12-24 | 2015-04-29 | 青岛锐志农业技术服务有限公司 | Wilforine and pyraclostrobin seed-dressing suspension and preparation method thereof |
| CN104892258A (en) * | 2015-06-18 | 2015-09-09 | 张家港市五湖新材料技术开发有限公司 | Starch-based complex seed-coating agent |
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| CN106508949A (en) * | 2016-11-04 | 2017-03-22 | 淄博市农业科学研究院 | Compounded seed coating agent containing pyraclostrobin, thifluzamide and dinotefuran and application |
| CN110301451A (en) * | 2018-03-20 | 2019-10-08 | 江苏龙灯化学有限公司 | A kind of crop protection agents |
| WO2020078145A1 (en) * | 2018-10-15 | 2020-04-23 | 深圳诺普信农化股份有限公司 | Dinotefuran oil-based suspension concentrate and preparation method therefor |
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Application publication date: 20140507 |