CN1663379A - Method for preparing pesticide avermectin microcapsule - Google Patents
Method for preparing pesticide avermectin microcapsule Download PDFInfo
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- CN1663379A CN1663379A CN 200510010656 CN200510010656A CN1663379A CN 1663379 A CN1663379 A CN 1663379A CN 200510010656 CN200510010656 CN 200510010656 CN 200510010656 A CN200510010656 A CN 200510010656A CN 1663379 A CN1663379 A CN 1663379A
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- avermectin
- preparation
- microcapsule
- urea
- solvent
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- 239000005660 Abamectin Substances 0.000 title claims abstract description 48
- RRZXIRBKKLTSOM-XPNPUAGNSA-N avermectin B1a Chemical compound C1=C[C@H](C)[C@@H]([C@@H](C)CC)O[C@]11O[C@H](C\C=C(C)\[C@@H](O[C@@H]2O[C@@H](C)[C@H](O[C@@H]3O[C@@H](C)[C@H](O)[C@@H](OC)C3)[C@@H](OC)C2)[C@@H](C)\C=C\C=C/2[C@]3([C@H](C(=O)O4)C=C(C)[C@@H](O)[C@H]3OC\2)O)C[C@H]4C1 RRZXIRBKKLTSOM-XPNPUAGNSA-N 0.000 title claims abstract description 48
- 239000003094 microcapsule Substances 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000000575 pesticide Substances 0.000 title claims abstract description 11
- 238000002360 preparation method Methods 0.000 claims abstract description 30
- 239000000203 mixture Substances 0.000 claims abstract description 18
- 239000000243 solution Substances 0.000 claims abstract description 16
- 229920001807 Urea-formaldehyde Polymers 0.000 claims abstract description 9
- GZCGUPFRVQAUEE-SLPGGIOYSA-N aldehydo-D-glucose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O GZCGUPFRVQAUEE-SLPGGIOYSA-N 0.000 claims abstract description 9
- 239000007864 aqueous solution Substances 0.000 claims abstract description 9
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 30
- 229920000642 polymer Polymers 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 13
- 239000002904 solvent Substances 0.000 claims description 11
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 10
- 239000004202 carbamide Substances 0.000 claims description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 7
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 6
- 229920001213 Polysorbate 20 Polymers 0.000 claims description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 6
- 238000004220 aggregation Methods 0.000 claims description 6
- 230000002776 aggregation Effects 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 239000000256 polyoxyethylene sorbitan monolaurate Substances 0.000 claims description 6
- 235000010486 polyoxyethylene sorbitan monolaurate Nutrition 0.000 claims description 6
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 5
- 238000005352 clarification Methods 0.000 claims description 5
- 239000003995 emulsifying agent Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 claims description 4
- 239000000047 product Substances 0.000 claims description 4
- 230000035484 reaction time Effects 0.000 claims description 4
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 3
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims description 3
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 3
- 238000007865 diluting Methods 0.000 claims description 3
- 239000012153 distilled water Substances 0.000 claims description 3
- 238000004945 emulsification Methods 0.000 claims description 3
- 239000012467 final product Substances 0.000 claims description 3
- 239000011259 mixed solution Substances 0.000 claims description 3
- 239000000376 reactant Substances 0.000 claims description 3
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims description 3
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims description 3
- 239000006185 dispersion Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 230000000857 drug effect Effects 0.000 abstract description 5
- 239000002689 soil Substances 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 2
- 239000003814 drug Substances 0.000 abstract 1
- 229940079593 drug Drugs 0.000 abstract 1
- CXEGAUYXQAKHKJ-NSBHKLITSA-N emamectin B1a Chemical compound C1=C[C@H](C)[C@@H]([C@@H](C)CC)O[C@]11O[C@H](C\C=C(C)\[C@@H](O[C@@H]2O[C@@H](C)[C@H](O[C@@H]3O[C@@H](C)[C@H](NC)[C@@H](OC)C3)[C@@H](OC)C2)[C@@H](C)\C=C\C=C/2[C@]3([C@H](C(=O)O4)C=C(C)[C@@H](O)[C@H]3OC\2)O)C[C@H]4C1 CXEGAUYXQAKHKJ-NSBHKLITSA-N 0.000 abstract 1
- 238000011065 in-situ storage Methods 0.000 abstract 1
- NHOIBRJOQAYBJT-IMGVWCFESA-N nimbin Chemical compound C=1([C@@H]2C[C@H]3O[C@H]4[C@](C3=C2C)(C)[C@@H]([C@]2(C(=O)C=C[C@](C)([C@@H]2[C@H]4OC(C)=O)C(=O)OC)C)CC(=O)OC)C=COC=1 NHOIBRJOQAYBJT-IMGVWCFESA-N 0.000 abstract 1
- ZQIYJHBQRBBBRZ-UHFFFAOYSA-N nimbin Natural products COC(=O)CC1C2C(C(OC(=O)C)C3OC4CC(C(=C4C13C)C)c5cocc5)C(C)(C=CC2=O)C(=O)OC ZQIYJHBQRBBBRZ-UHFFFAOYSA-N 0.000 abstract 1
- 239000003090 pesticide formulation Substances 0.000 abstract 1
- 238000006116 polymerization reaction Methods 0.000 abstract 1
- 230000000853 biopesticidal effect Effects 0.000 description 5
- 238000005303 weighing Methods 0.000 description 4
- 239000003905 agrochemical Substances 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 3
- 241000238631 Hexapoda Species 0.000 description 2
- 241000607479 Yersinia pestis Species 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- SNICXCGAKADSCV-JTQLQIEISA-N (-)-Nicotine Chemical compound CN1CCC[C@H]1C1=CC=CN=C1 SNICXCGAKADSCV-JTQLQIEISA-N 0.000 description 1
- 206010011732 Cyst Diseases 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 238000012695 Interfacial polymerization Methods 0.000 description 1
- VQXSOUPNOZTNAI-UHFFFAOYSA-N Pyrethrin I Natural products CC(=CC1CC1C(=O)OC2CC(=O)C(=C2C)CC=C/C=C)C VQXSOUPNOZTNAI-UHFFFAOYSA-N 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005354 coacervation Methods 0.000 description 1
- 208000031513 cyst Diseases 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000002552 dosage form Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000002917 insecticide Substances 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229960002715 nicotine Drugs 0.000 description 1
- SNICXCGAKADSCV-UHFFFAOYSA-N nicotine Natural products CN1CCCC1C1=CC=CN=C1 SNICXCGAKADSCV-UHFFFAOYSA-N 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- HYJYGLGUBUDSLJ-UHFFFAOYSA-N pyrethrin Natural products CCC(=O)OC1CC(=C)C2CC3OC3(C)C2C2OC(=O)C(=C)C12 HYJYGLGUBUDSLJ-UHFFFAOYSA-N 0.000 description 1
- VJFUPGQZSXIULQ-XIGJTORUSA-N pyrethrin II Chemical compound CC1(C)[C@H](/C=C(\C)C(=O)OC)[C@H]1C(=O)O[C@@H]1C(C)=C(C\C=C/C=C)C(=O)C1 VJFUPGQZSXIULQ-XIGJTORUSA-N 0.000 description 1
- 229940080817 rotenone Drugs 0.000 description 1
- JUVIOZPCNVVQFO-UHFFFAOYSA-N rotenone Natural products O1C2=C3CC(C(C)=C)OC3=CC=C2C(=O)C2C1COC1=C2C=C(OC)C(OC)=C1 JUVIOZPCNVVQFO-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000013268 sustained release Methods 0.000 description 1
- 239000012730 sustained-release form Substances 0.000 description 1
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- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention relates to a pesticide formulation of nimbin and emamectin benzoate and preparing method belonging to the technology field of pesticide preparation, wherein the conventional in-situ polymerization method is improved for the preparing process, which comprises the preparation of ureaformaldehyde resin prepolymer aqueous solution, preparation of avermectin mixture solution and the preparation of avermectin microcapsule. The invention solves the problem of influenced drug effect by the combination of avermectin and soil, the drug effective period is also extended.
Description
Technical field:
The present invention relates to a kind of method for preparing pesticide avermectin microcapsule, belong to the preparation technique of pesticide field.
Background technology:
At present, the new and effective agricultural chemicals of developing mainly comprises both at home and abroad, the one, and develop emerging high-efficiency low-toxicity chemical pesticide and change the formulation that has agricultural chemicals now, the 2nd, biopesticide.In conjunction with domestic actual conditions, China mainly concentrates on modified form and develops biopesticide.In the present domestic biopesticide jinggangmeisu of developing, pyrethrin, rotenone, nicotine, Avermectin etc., Avermectin is the best product of preventive effect, also is with fastest developing speed in the world at present, most widely used biopesticide.But in the development of present pesticide developing, Avermectin is as broad spectrum insecticide, be used for the biopesticide of the soil and the plant root extermination of disease and insect pest, mainly concentrate on missible oil, the development of conventional dosage forms such as supensoid agent, and these formulations make easily field planting in soil of Avermectin, therefore difficulty is given and is given full play to drug effect, and also injures natural enemy when killing off the insect pests, and destroys ecotope, contaminated environment more seriously is detrimental to health because of remaining in the crop.
As everyone knows, the method for making microcapsules is a lot, and the cyst material of selecting for use also has a lot.With regard to the preparation method of pesticide micro capsule, mainly concentrate on interfacial polymerization, coacervation, situ aggregation method now.Because the various advantages of situ aggregation method is widely adopted industrial.Relevant many patents of method therewith, the registration of existing 320 relevant situ aggregation methods up till now in EUROPEAN PATENT OFFICE's patent database typically has Japan's special permission 23 165/72,14 379/69,30282/71 etc.
Summary of the invention:
The objective of the invention is to overcome existing Avermectin preparation and be difficult to field planting in soil, drug effect is low, and consumption is big, and the deficiency of influence ecological environment adopts situ aggregation method to prepare the biological pesticide avermectin microcapsules.
The technical scheme of invention is: pesticide avermectin microcapsule adopts the situ aggregation method preparation, and operation comprises the preparation of performed polymer, the preparation of Avermectin mixture solution, the preparation of avermectin microcapsule, wherein:
A. the preparation of performed polymer: urea is dissolved in formaldehyde, the mol ratio of formaldehyde and urea is 2: 3～2: 5, with extremely clarification of magnetic stirrer, regulating pH value with triethanolamine is 8～9,65 ℃～70 ℃ of reaction temperatures, generate thick liquid after 1～1.5 hour reaction time, promptly get the stable urea-formaldehyde resin performed polymer aqueous solution with the distilled water diluting that doubles the formaldehyde consumption again;
B. the preparation of Avermectin mixture solution: will be powdery or granular Avermectin is dissolved in the solvent at the normal temperature state, solvent is carrene, chloroform, toluene or cyclohexanone, the solvent usage amount is so that till Avermectin dissolving or the dispersion, the 1g Avermectin is used 20～30ml solvent in this method.Adding 2%～10% emulsifier then fully disperses and emulsification, solution after solvent adds density again less than 1 benzinum, the consumption of benzinum is that the density of the avermectin microcapsule that generated equates with the density of water, under 60 ℃～90 ℃ temperature, after 1000r/min～1500r/min stirs, it is fully disperseed, after mixture mixes clarification, get final product;
C. the preparation of avermectin microcapsule: the urea-formaldehyde resin performed polymer aqueous solution is joined in the Avermectin mixture solution under 1000r/min～1500r/min stirs, after stirring 15min, to the HCl that wherein adds 1M slowly, mixing speed drops to 500r/min～750r/min, behind the 30min its pH value is transferred to 2.5, react and be warmed to 45 ℃ after one hour, react to cancel after 2.5 hours and heat, in reactant, add the 5ml Tween-20, and product is neutralized into pH=7 with NaOH, filter centrifugal collection avermectin microcapsule then; At last the microcapsules of gained are stored in the mixed solution of Tween-20 of 0.5% sodium carboxymethylcellulose and 1.9%.
Differentiate that the microcapsules that generated adopt microscopic examination.
The present invention compared with prior art, it is few to have an equipment investment, technology is easy to control, stable reaction is suitable for suitability for industrialized production, yield is higher than 80%, envelop rate is higher than 80%, and has advantages such as sustained release performance.The Avermectin capsule that this method is produced has not only solved Avermectin and has combined the problem that influences drug effect with soil, reduce consumption by slowly-releasing simultaneously, prolong the drug effect term of validity, consolidate control efficiency, be difficult for making agricultural chemicals by atmosphere, sunlight and rainwater destroy and run off, and effectively control prevents and treats the change of ecotope to phreatic pollution.
Description of drawings:
Fig. 1, Fig. 2 are the electron microscope picture of avermectin microcapsule.
Embodiment:
Embodiment 1:
The invention process device therefor is legacy equipment.
The preparation of performed polymer: precision weighing 12g urea is dissolved in (mol ratio of formaldehyde and urea is 2: 3) in the 24ml formaldehyde (37%) with it, at room temperature its pH value is transferred to 8.5 with triethanolamine, temperature is raised to 70 ℃ of reactions 1 hour, uses the 50ml distilled water diluting promptly to get the stable urea-formaldehyde resin performed polymer aqueous solution then;
The preparation of Avermectin mixture solution: precision weighing 1.5g Avermectin is dissolved in it in 25ml chloroform, adding 2% emulsifier then fully disperses and emulsification, solution after solvent adds density again less than 1 36ml benzinum, under 90 ℃ temperature, after 1000r/min stirs, it is fully disperseed, after mixture mixes clarification, get final product;
The preparation of avermectin microcapsule: the urea-formaldehyde resin performed polymer aqueous solution is joined in the Avermectin mixture solution under 1000r/min stirs, after stirring 15min, to the HCl that wherein adds 1M slowly, mixing speed drops to 750r/min, behind the 30min its pH value is transferred to 2.5, react and be warmed to 45 ℃ after one hour, react to cancel after 2.5 hours and heat, in reactant, add the 5ml Tween-20, and product is neutralized into pH=7 with NaOH, centrifugal then, filter and collect avermectin microcapsule; At last the microcapsules of gained are stored in the mixed solution of Tween-20 of 0.5% sodium carboxymethylcellulose and 1.9%.
Differentiate that the microcapsules that generated adopt microscopic examination.
Embodiment 2:
Substantially with embodiment 1.Difference is:
In the preparation section of performed polymer, precision weighing 12g urea is dissolved in (mol ratio of formaldehyde and urea is 2: 4) in the 30ml formaldehyde (37%) with it, and the pH value is 8, and reaction temperature is 65 ℃, and the reaction time is 1.2 hours;
The addition of emulsifier is 7% in the preparation section of Avermectin mixture solution, and temperature is 60 ℃, and mixing speed is 1200r/min;
The urea-formaldehyde resin performed polymer aqueous solution joins in the Avermectin mixture solution under 1200r/min stirs in the preparation section of avermectin microcapsule, stir 15min after, to the HCl that wherein adds 1M slowly, mixing speed drops to 500r/min.
Embodiment 3:
Substantially with embodiment 1.Difference is:
In the preparation section of performed polymer, precision weighing 12g urea is dissolved in (mol ratio of formaldehyde and urea is 2: 5) in the 37ml formaldehyde (37%) with it, and the pH value is 9, and reaction temperature is 68 ℃, and the reaction time is 1.5 hours;
The addition of emulsifier is 10% in the preparation section of Avermectin mixture solution, and temperature is 75 ℃, and mixing speed is 1500r/min
The urea-formaldehyde resin performed polymer aqueous solution joins in the Avermectin mixture solution under 1500r/min stirs in the preparation section of avermectin microcapsule, stir 15min after, to the HCl that wherein adds 1M slowly, mixing speed drops to 650r/min.
Claims (1)
1, a kind of method for preparing pesticide avermectin microcapsule adopts the situ aggregation method preparation, and operation comprises the preparation of performed polymer, the preparation of Avermectin mixture solution, the preparation of avermectin microcapsule, it is characterized in that:
A. the preparation of performed polymer: urea is dissolved in formaldehyde, the mol ratio of formaldehyde and urea is 2: 3～2: 5, with extremely clarification of magnetic stirrer, regulating pH value with triethanolamine is 8～9,65 ℃～70 ℃ of reaction temperatures, generate thick liquid after 1～1.5 hour reaction time, promptly get the stable urea-formaldehyde resin performed polymer aqueous solution with the distilled water diluting that doubles the formaldehyde consumption again;
B. the preparation of Avermectin mixture solution: will be powdery or granular Avermectin is dissolved in the solvent at the normal temperature state, solvent is carrene, chloroform, toluene or cyclohexanone, the solvent usage amount is so that till Avermectin dissolving or the dispersion, the 1g Avermectin is used 20～30ml solvent in this method; Adding 2%～10% emulsifier then fully disperses and emulsification, solution after solvent adds density again less than 1 benzinum, the consumption of benzinum is that the density of the avermectin microcapsule that generated equates with the density of water, under 60 ℃～90 ℃ temperature, after 1000r/min～1500r/min stirs, it is fully disperseed, after mixture mixes clarification, get final product;
C. the preparation of avermectin microcapsule: the urea-formaldehyde resin performed polymer aqueous solution is joined in the Avermectin mixture solution under 1000r/min～1500r/min stirs, after stirring 15min, to the HCl that wherein adds 1M slowly, mixing speed drops to 500r/min～750r/min, behind the 30min its pH value is transferred to 2.5, react and be warmed to 45 ℃ after one hour, react to cancel after 2.5 hours and heat, in reactant, add the 5ml Tween-20, and product is neutralized into pH=7 with NaOH, filter centrifugal collection avermectin microcapsule then; At last the microcapsules of gained are stored in the mixed solution of Tween-20 of 0.5% sodium carboxymethylcellulose and 1.9%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510010656 CN1663379A (en) | 2005-02-08 | 2005-02-08 | Method for preparing pesticide avermectin microcapsule |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510010656 CN1663379A (en) | 2005-02-08 | 2005-02-08 | Method for preparing pesticide avermectin microcapsule |
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| Publication Number | Publication Date |
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| CN1663379A true CN1663379A (en) | 2005-09-07 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009062298A (en) * | 2007-09-05 | 2009-03-26 | Sumitomo Chemical Co Ltd | Aqueous suspension pesticide composition |
| CN102210315A (en) * | 2011-04-29 | 2011-10-12 | 中国农业大学 | Carbosulfan microcapsule suspending agent and preparation method thereof |
| CN105981717A (en) * | 2015-02-02 | 2016-10-05 | 上海是大高分子材料有限公司 | Biological microalgae microcapsule suspension agent and preparation method thereof |
| CN108576042A (en) * | 2018-04-20 | 2018-09-28 | 江苏辉丰生物农业股份有限公司 | A kind of microcapsulated granule of prevention peanut pest and disease damage |
| US11382330B2 (en) | 2017-12-25 | 2022-07-12 | Dow Global Technologies Llc | Micro-encapsulation of an insecticide |
-
2005
- 2005-02-08 CN CN 200510010656 patent/CN1663379A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009062298A (en) * | 2007-09-05 | 2009-03-26 | Sumitomo Chemical Co Ltd | Aqueous suspension pesticide composition |
| CN102210315A (en) * | 2011-04-29 | 2011-10-12 | 中国农业大学 | Carbosulfan microcapsule suspending agent and preparation method thereof |
| CN102210315B (en) * | 2011-04-29 | 2013-06-19 | 中国农业大学 | Carbosulfan microcapsule suspending agent and preparation method thereof |
| CN105981717A (en) * | 2015-02-02 | 2016-10-05 | 上海是大高分子材料有限公司 | Biological microalgae microcapsule suspension agent and preparation method thereof |
| CN105981717B (en) * | 2015-02-02 | 2019-06-11 | 上海是大高分子材料有限公司 | Biological microalgae microcapsule suspension and preparation method thereof |
| US11382330B2 (en) | 2017-12-25 | 2022-07-12 | Dow Global Technologies Llc | Micro-encapsulation of an insecticide |
| CN108576042A (en) * | 2018-04-20 | 2018-09-28 | 江苏辉丰生物农业股份有限公司 | A kind of microcapsulated granule of prevention peanut pest and disease damage |
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