CN102696682B - Wanlongmycin dimethomorph suspending agent, preparation method thereof and application - Google Patents
Wanlongmycin dimethomorph suspending agent, preparation method thereof and application Download PDFInfo
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- CN102696682B CN102696682B CN201210118141.4A CN201210118141A CN102696682B CN 102696682 B CN102696682 B CN 102696682B CN 201210118141 A CN201210118141 A CN 201210118141A CN 102696682 B CN102696682 B CN 102696682B
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Abstract
The invention discloses a wanlongmycin dimethomorph suspending agent, a preparation method thereof and application. The suspending agent comprises, by mass, 4-8% of wanlongmycin, 16%-32% of dimethomorph, 5% of moistening agents/ dispersant, 1% of thickening agents, 0.5% of stabilizing agents, 1% of antifreezing agents, 0.5% of PH conditioning agents and 0.2% of defoaming agents. Water replaces organic solvents, active ingredients with particle diameters of less than 4 mu m are uniformly dispersed in the water, then a white agent is formed, the process is simple and the production cost is low. After the agent is sprayed, thin particles are distributed on surfaces of crops, pathogenic germs can be inhibited and eliminated directly, and the drug effect is improved. The wanlongmycin and the dimethomorph are mixed, prevention and cure effects are improved, and the drug resistance of pathogenic germs is effectively delayed. The prepared suspending agent is efficient, low in toxicity and free from pollution and can be used for preventing and curing plant pests and diseases caused by phytophthora.
Description
Technical field
The invention belongs to plant protection and technical field of pesticide, particularly a kind of ten thousand alkene suspending agents and preparation method thereof and application.
Background technology
In recent years, the economic crops cultivated area of China constantly expands, and continuous cropping throughout the year makes soil-borne disease be ascendant trend year by year, wherein by the more difficult control of the microbial plant disease of ovum, especially phytophthora short incubation period, then infect often, normal outbreak of epidemic and cause loss serious.
At present, chemical control is still one of important means of controlling phytophthora disease.But, because plantation head of a household's phase is abused chemical agent, make pathogen there is stronger pesticide resistance, the chemical agents such as maneb, zineb, mancozeb, metalaxyl and M 9834 have been difficult to prevention and control phytophthora blight.Now produce the upper chemical agent using and be mainly Fluoxastrobin, kresoxim-methyl, dimethomorph, flumorph, Propamocarb, fluopicolide and mixture preparation thereof etc., as dimethomorph WP, dimethomorph SC, dimethomorph-MnZn WP, flumorph SC, fluopicolide-Propamocarb SC (Yin Fali), field application finds that the plant disease that these medicaments cause phytophthora has good control efficiency, but also occurs the undesirable phenomenon of control efficiency in continuous cropping grave illness district.
Bandung mycin is novel farm antibiotics, can suppress the mycelial growth of phytophthora root rot bacterium, sporangial formation, the generation of zoospore, the sprouting of resting spore etc., to had good control efficiency by the microbial plant disease of phytophthora root rot; Dimethomorph is stronger to the growth inhibition effect of epidemic disease bacterium, can destroy the formation of pathogen cell envelope, and strong inhibition egg spore and sporangial formation, resting spore are sprouted and mycelial growth.But alone bandung mycin or dimethomorph, easily make pathogen produce resistance, cost accounting is higher.Therefore, exploitation has the bactericidal composition of synergistic effect significant to phytophthora root rot bacterium.
Summary of the invention
Primary and foremost purpose of the present invention is that the shortcoming that overcomes prior art, with not enough, provides a kind of ten thousand alkene suspending agents.
Another object of the present invention is to provide the preparation method of above-mentioned ten thousand alkene suspending agents.
A further object of the present invention is to provide the application of described ten thousand alkene suspending agents.
Object of the present invention is achieved through the following technical solutions: a kind of ten thousand alkene suspending agents, comprise following composition by mass percentage:
Described bandung mycin and described dimethomorph 1: 2.33 in mass ratio～9 proportionings are used;
Described bandung mycin and described dimethomorph be proportioning use in 1: 4 in mass ratio preferably;
Described moistening/dispersant both can be used as wetting agent and used, and can be used as again dispersant and used, and was preferably neopelex;
Described thickener is preferably white carbon;
Described stabilizing agent is preferably linseed oil;
Described antifreezing agent is preferably ethylene glycol;
Described pH adjusting agent is preferably acetic acid;
Described defoamer is preferably isooctanol;
The preparation method of ten thousand described alkene suspending agents, comprise the following steps: 4%～8% bandung mycin and 16%～32% dimethomorph are mixed, then add 5% moistening/dispersant, 1% thickener, 0.5% stabilizing agent, 1% antifreezing agent, 0.5%pH conditioning agent and 0.2% defoamer, deionized water is mended to 100%, stir, obtain mixture; Mixture is ground, obtain ten thousand alkene suspending agents;
Above-mentioned percentage (%) is mass percent;
Described grinding preferably carried out in ball mill;
The described time that grinds is preferably 6 hours;
Ten thousand described alkene suspending agents can be applicable to control by the microbial plant disease of phytophthora root rot, as capsicum epidemic disease, pineapple heart rot, Cucumber Blight etc.
The present invention has following advantage and effect with respect to prior art:
(1) the present invention, with water to replace organic solvent, is dispersed in water the particle diameter of active ingredient below 4 μ m, forms canescence preparation, and technique is simple, and production cost is low.After said preparation spraying, with fine particle, be distributed in crop surface, but be more conducive to directly kill pathogen, improve drug effect.
(2) the ten thousand alkene suspending agents that prepared by the present invention are efficient, low toxicity, pollution-free, by the use that is mixed of bandung mycin and dimethomorph, strengthened control efficiency, effectively delay the pesticide resistance of pathogen.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Embodiment 1
By bandung mycin (content 40%, Inst. of Plant Protection, Guangdong Prov. Academy of Agricultural Sciences) 16.7 grams of 10 grams and the former medicines of 96% dimethomorph (Hebei Guanlong Agrochemical Co., Ltd.) mix, then add 5 grams of neopelexes, 1 gram of white carbon, 0.5 gram of linseed oil, 1 gram of ethylene glycol, 0.5 gram of acetic acid, 0.2 gram of isooctanol, 65.1 grams of deionized waters, stir, obtain mixture; Mixture is poured in ball mill, ground 6 hours, obtain 2,0%0,000 alkene suspending agent.
2,0%0,000 described alkene suspending agent refers to the ten thousand alkene suspending agents that the mass percent sum of active ingredient bandung mycin and dimethomorph is 20%.
Embodiment 2
By bandung mycin (content 40%, Inst. of Plant Protection, Guangdong Prov. Academy of Agricultural Sciences) 25 grams of 15 grams and the former medicines of 96% dimethomorph (Hebei Guanlong Agrochemical Co., Ltd.) mix, then add 5 grams of neopelexes, 1 gram of white carbon, 0.5 gram of linseed oil, 1 gram of ethylene glycol, 0.5 gram of acetic acid, 0.2 gram of isooctanol, 51.8 grams of deionized waters, stir, obtain mixture; Mixture is poured in ball mill, ground 6 hours, obtain 3,0%0,000 alkene suspending agent.
3,0%0,000 described alkene suspending agent refers to the ten thousand alkene suspending agents that the mass percent sum of active ingredient bandung mycin and dimethomorph is 30%.
Embodiment 3
By bandung mycin (content 40%, Inst. of Plant Protection, Guangdong Prov. Academy of Agricultural Sciences) 33.3 grams of 20 grams and the former medicines of 96% dimethomorph (Hebei Guanlong Agrochemical Co., Ltd.) mix, then add 5 grams of neopelexes, 1 gram of white carbon, 0.5 gram of linseed oil, 1 gram of ethylene glycol, 0.5 gram of acetic acid, 0.2 gram of isooctanol, 38.5 grams of deionized waters, stir, obtain mixture; Mixture is poured in ball mill, ground 6 hours, obtain 4,0%0,000 alkene suspending agent.
4,0%0,000 described alkene suspending agent refers to the ten thousand alkene suspending agents that the mass percent sum of active ingredient bandung mycin and dimethomorph is 40%.
Effect embodiment:
The potted plant control efficiency test of (1) ten thousand alkene suspending agent to capsicum epidemic disease
Pot experiment is carried out in the greenhouse of 26～28 ℃.(peat, perlite, gardening vermiculite mix for 1: 1: 1 by volume for each plastic basin alms bowl dress natural air drying vegetable garden soil 0.4kg and matrix.) 0.1kg, every alms bowl is transplanted 2～3 of healthy and strong Hot Pepper Seedlings of 4 leaf phases, transplants its growth after 5 days and normally tests.Phytophthora capsici germ (Phytophthora capsici Leonian) (pre-test of capsicum blight-resistant authentication method, Tianjin agricultural science, 2010,16 (5): 100～103) at V8 solid culture medium (imported from America V
8vegetable juice 150mL, CaCO
30.2g, agar 18g, water 850mL) the upper 26 ℃ of cultivation 7～9d of plate (diameter 9cm), when microscopic examination has zoosporangium to form, add sterile water in plate, putting into 4 ℃ of refrigerators processed after 30 minutes, be placed in room temperature lower 10 minutes, with spreading rod, scrape gently mycelia surface, zoospore is fully discharged, blood counting chamber calculates zoospore quantity, and is diluted to zoospore concentration 10
3～10
4cfu/mL left and right.
If: 1. control treatment (CK); 2. contrasting medicament is that 50% dimethomorph wetting powder is by 1000 times and 2000 times of mass volume ratio dilutions; 10% bandung mycin missible oil dilutes 1000 times and 2000 times by volume; 3. treatment agent 2,0%0,000 alkene suspending agent, 3,0%0,000 alkene suspending agent and 4,0%0,000 alkene suspending agent are pressed respectively 1000 times and 2000 times of mass volume ratio dilutions.
During test, hinder root and process Hot Pepper Seedling, then respectively process blade and the base portion of reagent spray Hot Pepper Seedling, spray value is as the criterion to drip, and dries, and it is 10 that every basin adds 10mL concentration
3～10
4cfu/mL Phytophthora capsici zoospore.Every concentration is processed 30 basins.After processing, moisturizing is processed 24 hours, and after processing, 5,10 days investigation morbidity numbers, calculate the incidence of disease and control efficiency.
The pot experiment control efficiency of table 1 ten thousand alkene suspending agents to capsicum epidemic disease
Note: control efficiency (%)=(the contrast incidence of disease-treatment region incidence of disease)/check plot incidence of disease * 100%
As shown in Table 1, the control efficiency that ten thousand alkene suspending agents have had capsicum epidemic disease.Dispenser was processed after 10 days, wherein 1000 times of 20%, 30% and 4,0%0,000 alkene suspending agent dilutions and 2000 times are to the potted plant control efficiency of capsicum epidemic disease all more than 95%, and 1000 times and 2000 times potted plant control efficiency to capsicum epidemic disease of contrast medicament 50% dimethomorph wettable powder dilution agent are respectively 97.44% and 91.78%; 10% 1000 times of bandung mycin missible oil dilutions and 2000 times of potted plant control efficiency to capsicum epidemic disease are respectively 97.32% and 92.11%; It is suitable that the control efficiency that 1000 times of 20%, 30% and 4,0%0,000 alkene suspending agent dilutions and 2000 times are described and 50% dimethomorph wetting powder and 10% bandung mycin missible oil dilute the control efficiency of 1000 times.
The potted plant control efficiency test of (2) ten thousand alkene suspending agents to pineapple heart rot
Pot experiment is carried out in the greenhouse of 26～28 ℃.(peat, perlite, gardening vermiculite mix for 1: 1: 1 by volume for each plastic basin alms bowl dress natural air drying vegetable garden soil 0.8kg and matrix.) 0.2kg, every alms bowl is transplanted 1 of healthy and strong pineapple seedling (height of seedling 25～30cm), transplants its growth after 7 days and normally tests.
Phytophthora nicotianae (Phytophthora nicotianae) is the main pathogenic fungi that causes pineapple heart rot.Phytophthora nicotianae (P.nicotianae) (evaluation of Pineapple Phytophthora Pathogen of Pineapple Leaf Heart-rot in Guangzhou Region, Yunnan Prov Agriculture University's journal, 2003,18 (2): 134-135) at V8 solid culture medium (imported from America V
8vegetable juice 150mL, CaCO
30.2g, agar 18g, water 850mL) the upper 26 ℃ of cultivation 7～9d of plate (diameter 9cm), when microscopic examination has zoosporangium to form, add sterile water in plate, putting into 4 ℃ of refrigerators processed after 30 minutes, be placed in room temperature lower 10 minutes, with spreading rod, scrape gently mycelia surface, zoospore is fully discharged, blood counting chamber calculates zoospore quantity, and is diluted to zoospore concentration 10
3～10
4cfu/mL left and right.
If: 1. control treatment (CK); 2. contrast medicament and be 50% dimethomorph wettable powder dilution agent by 1000 times of mass volume ratios and 2000 times; 10% bandung mycin missible oil dilutes 1000 times and 2000 times by volume; 3. treatment agent 2,0%0,000 alkene suspending agent, 3,0%0,000 alkene suspending agent and 4,0%0,000 alkene suspending agent dilute respectively by 1000 times of mass volume ratios and 2000 times.
During test, hinder root and process pineapple seedling, then respectively process blade and the base portion of reagent spray pineapple, spray value is as the criterion to drip, and dries, and it is 10 that every basin adds 20mL concentration
3～10
4cfu/mL pineapple heart rot pathogen zoospore.Every concentration is processed 30 basins.After processing, moisturizing is processed 24 hours, and after processing, 7,12 days investigation morbidity numbers, calculate the incidence of disease and control efficiency.
As shown in Table 2, ten thousand alkene suspending agents have good control efficiency to pineapple heart rot.Dispenser was processed after 12 days, wherein 1000 times of 20%, 30% and 4,0%0,000 alkene suspending agent dilutions are to the potted plant control efficiency of pineapple heart rot all more than 90%, and 1000 times of the contrast medicament 50% dimethomorph wettable powder dilution agents potted plant control efficiency to pineapple heart rot is respectively 93.33%; The control efficiency that 1000 times of the control efficiency of 1000 times of 20%, 30% and 4,0%0,000 alkene suspending agent dilutions and 50% dimethomorph wettable powder dilution agents are described is suitable.
The pot experiment control efficiency of table 2 ten thousand alkene suspending agents to pineapple heart rot
Note: control efficiency (%)=(the contrast incidence of disease-treatment region incidence of disease)/check plot incidence of disease * 100%
Above-described embodiment is preferably embodiment of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present invention and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection scope of the present invention.
Claims (9)
1. ten thousand alkene suspending agents, is characterized in that comprising the following composition of calculating by mass percentage:
Bandung mycin 4%～8%
Dimethomorph 16%～32%
Moistening/dispersant 5%
Thickener 1%
Stabilizing agent 0.5%
Antifreezing agent 1%
PH adjusting agent 0.5%
Defoamer 0.2%;
Described bandung mycin and described dimethomorph in mass ratio 1:4 proportioning are used.
2. ten thousand alkene suspending agents according to claim 1, is characterized in that: described moistening/dispersant is neopelex.
3. ten thousand alkene suspending agents according to claim 1, is characterized in that: described thickener is white carbon.
4. ten thousand alkene suspending agents according to claim 1, is characterized in that: described stabilizing agent is linseed oil.
5. ten thousand alkene suspending agents according to claim 1, is characterized in that: described antifreezing agent is ethylene glycol.
6. ten thousand alkene suspending agents according to claim 1, is characterized in that: described pH adjusting agent is acetic acid; Described defoamer is isooctanol.
7. the preparation method of ten thousand alkene suspending agents described in claim 1 any one, is characterized in that comprising the following steps:
4%～8% bandung mycin and 16%～32% dimethomorph are mixed, then add 5% moistening/dispersant, 1% thickener, 0.5% stabilizing agent, 1% antifreezing agent, 0.5%pH conditioning agent and 0.2% defoamer, deionized water is mended to 100%, stirs, and obtains mixture; Mixture is ground, obtain ten thousand alkene suspending agents;
Above-mentioned percentage is mass percent.
8. the preparation method of ten thousand alkene suspending agents according to claim 7, is characterized in that: the described time that grinds is 6 hours.
9. the application of ten thousand alkene suspending agents described in claim 1～6 any one, is characterized in that: ten thousand described alkene suspending agents are applied to control by the microbial plant disease of phytophthora root rot.
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| CN201210118141.4A CN102696682B (en) | 2012-04-20 | 2012-04-20 | Wanlongmycin dimethomorph suspending agent, preparation method thereof and application |
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| CN106942215A (en) * | 2017-04-12 | 2017-07-14 | 江苏金凤凰农化有限公司 | A kind of composition and application process that pineapple heart rot is treated based on guaiacol |
| CN115211424A (en) * | 2022-07-08 | 2022-10-21 | 中国热带农业科学院南亚热带作物研究所 | Pesticide composition for preventing and treating pineapple heart rot caused by phytophthora nicotianae |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1513983A (en) * | 2003-08-06 | 2004-07-21 | 广东省农业科学院植物保护研究所 | Bactericide bandung mycin and its upplication |
| CN101692816A (en) * | 2009-08-05 | 2010-04-14 | 陕西标正作物科学有限公司 | Bactericide suspending agent compounded of dimethomorph and amistar and process for preparing same |
| CN102037981A (en) * | 2011-01-12 | 2011-05-04 | 青岛农业大学 | Wettable powder compounded by dimethomorph and polyoxin and preparation method thereof |
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| JP2011042664A (en) * | 2010-10-08 | 2011-03-03 | Kumiai Chemical Industry Co Ltd | Germicidal composition for agriculture and horticulture |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1513983A (en) * | 2003-08-06 | 2004-07-21 | 广东省农业科学院植物保护研究所 | Bactericide bandung mycin and its upplication |
| CN101692816A (en) * | 2009-08-05 | 2010-04-14 | 陕西标正作物科学有限公司 | Bactericide suspending agent compounded of dimethomorph and amistar and process for preparing same |
| CN102037981A (en) * | 2011-01-12 | 2011-05-04 | 青岛农业大学 | Wettable powder compounded by dimethomorph and polyoxin and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| A New Fungicide Produced by a Streptomyces sp. GAAS7310;Guangying Chen 等;《The Journal of Antibiotics》;20050731;第58卷(第8期);第519-522页 * |
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