CN103027058A - Fungicide composition for preventing and treating rice diseases - Google Patents
Fungicide composition for preventing and treating rice diseases Download PDFInfo
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- CN103027058A CN103027058A CN201110298274XA CN201110298274A CN103027058A CN 103027058 A CN103027058 A CN 103027058A CN 201110298274X A CN201110298274X A CN 201110298274XA CN 201110298274 A CN201110298274 A CN 201110298274A CN 103027058 A CN103027058 A CN 103027058A
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- rice
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- carbendazim
- jinggangmycin
- tricyclazole
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Abstract
The invention relates to a fungicide composition for preventing and treating rice diseases, which comprises the following components in parts by weight: 5% to 20% of carbendazim, 2% to 10% of jinggangmycin A and 2% to 10% of tricyclazole. The fungicide composition for preventing and treating the rice diseases provided by the invention can prevent and treat the main rice diseases comprehensively, such as sheath blight and rice blast, so that the control efficacy of the sheath blight reaches up to 86.11% to 87.95%, and the control efficacy of the rice blast reaches up to 98.95%; and in addition, the fungicide composition for preventing and treating the rice diseases has a certain expansion effect on inhibition of the sheath blight and the rice blast, accelerates the production of the rice, and improves the yield, so that the average yield is increased by 7.5%.
Description
Technical field
The present invention relates to a kind of microbicide compositions, be specifically related to a kind of microbicide compositions of preventing and treating rice disease that contains jinggangmycin A.
Background technology
China is a large agricultural country, and paddy rice is the important cereal crops of China, and its production has long history and consequence in China.Existing more than 5000 of rice in China plantation, the rice high yield stable yields, its output accounts for 1/2 of national total output of grain; The paddy rice distribution area is wide, accounts for 1/4 of national arable area.But paddy rice suffers the harm of various germs in process of production, has restricted the yield and quality of paddy rice, but underproduction 40-50% when serious.Wherein the incident disease of paddy rice is mainly banded sclerotial blight, rice blast, but use at present more medicament to be the banded sclerotial blight of jinggangmeisu control paddy rice, the rice blast of tricyclazole control paddy rice, triazolone can only the control of maize jowar powdery mildew etc., but the medicament of the diseases such as the rice sheath blight disease of neither one integrated control, rice blast.
Summary of the invention
Tricyclazole is the stronger protectiveness triazole bactericidal agent of a kind of interior absorption; can be absorbed by rice root, stem, leaf rapidly; and be delivered to each one of rice strain, mainly form by suppressing the germ spore germination and adhere to spore, thereby effectively stop germ to be invaded and the generation of minimizing rice blast pathogen spore.This medicine only has prevention effect, does not have therapeutic action.Will be combined with the medicament of other treatment effect after the field morbidity, its antiscour power is strong, meets the rain medicine that need not fill spray behind the spray medicine in 1 hour.The effect of tricyclazole control rice blast mainly is that thalline melanin is synthetic to stop germ to be invaded by suppressing, also can suppress the expansion of scab and produce spore, thereby suppress to infect again, but and in the inducing paddy rice body POX enzymic activity improve, thereby be difficult for making rice blast to produce resistance.
Carbendazim is a kind of efficient, low toxicity, wide spectrum, systemic fungicide, and is all effective to most of pathogens of ascomycetous many pathogens and Fungi Imperfecti, and invalid to oomycetes and bacterial disease.Control efficiency is good under acid condition, has protection and therapeutic action, and the mechanism of action is to disturb the formation of spindle in the pathogen mitosis, affects cell division, plays bactericidal action.Lasting period 10-15 days, plant growth there is spread effect, easily produce resistance.Be mainly used in preventing and treating powdery mildew, black spot, rust etc.
Jinggangmeisu is the agricultural microorganism source bactericide of China's output maximum, and its component A, B, C, D, E, F, G, H, eight kinds of compositions, the jinggangmycin A of can saying so are active the strongest compositions in eight kinds of compositions of jinggangmeisu.Mainly calculate take jinggangmycin A as main active ingredient among the present invention.Jinggangmeisu is mainly used in the control of the banded sclerotial blights such as paddy rice, wheat.Its mechanism of action is not killing effect, and it makes the sheath blight fungus mycelium form undesired branch and weakens the pathogenicity of sheath blight fungus, in case the jinggangmeisu drug effect disappears, sheath blight fungus still can return to normal production.Jinggangmeisu is because having the govern-house-variety that toxicity is low, environmentally safe, the characteristics such as be difficult to develop immunity to drugs become rice sheath blight disease controlling.
The applicant has done a large amount of research and experiments, carry out above-mentioned three kinds of agricultural chemicals rationally composite, be equipped with suitable auxiliary agent, thinner etc. and make operable formulation product and uses thereof, can improve bactericidal activity, enlarge fungicidal spectrum, and reduce each product consumption, reduce cost, the continuity paddy rice is to the pesticide resistance of bactericide, and is environmentally safe.The largest benefit of said composition is to advance coordinate plant growth sterilization same, when plant is ripe, reaches the effect of sterilization and facilitates for the farmland mechanized operation.
Purpose of the present invention just provides the compound drug of a kind of energy integrated control paddy rice Major Diseases banded sclerotial blight and rice blast.
To achieve these goals, the present invention realizes by following technology:
A kind of microbicide compositions of preventing and treating rice disease comprises following composition (by weight percentage): carbendazim 5-20%, jinggangmycin A 2-10%, tricyclazole 2-10%.
Also comprise auxiliary agent in the described microbicide compositions, described auxiliary agent is by wetting agent, dispersant and media assemblage, and by accounting for composition weight meter wetting agent 0.5-8%, dispersant 1-10%, filler are surplus.
Separately amount of application and both portfolio ratios and synergy degree when the consumption of the active component of using depends on independent use in the bactericidal composition of the present invention, simultaneously also relevant with the target bacterial classification.Preferred version is described carbendazim 7-15%, jinggangmycin A 4-8%, and tricyclazole 3-7%, wetting agent 1-4%, dispersant 2-7%, filler are surplus.
Described dispersant; wetting agent is lignosulfonates (sodium salt or calcium salts); Negel; condensation compound of methyl naphthalene sulfonic acid and formaldehyde sulphate; naphthalene sulfonic acid-formaldehyde condensation product; methanonaphthalene sodium sulfonate dibutyl naphthalene sulfonic acid-formaldehyde condensation product; N-methyl fatty acyl group sodium taurocholate; alkylphenol polyoxyethylene formaldehyde condensation products sulphate; polymerization of carboxylic acid sodium; the alkylphenol polyoxyethylene phosphate; the withered powder of tea; saponin; lignosulfite; aliphatic alcohol sulfate; lauryl sodium sulfate; alkylbenzenesulfonate; penetrant t; bleeding agent OT; fatty acid amide-N methyl taurine sodium salt; sodium sulfate of polyethenoxy ether of fatty alcohol; pull open powder; JFC; can use separately, but also compound use.
Described filler is white carbon, precipitated calcium carbonate, potter's clay, attapulgite, kaolin, diatomite, swollen ravine soil, sepiolite, zeolite, river sand, quartz sand, talcum powder, can use separately, also can two kinds or above mixing use.
Can contain toner in the preparation, inorganic pigment iron oxide for example, titanium oxide or Prussian blue; Organic dyestuff is such as A Lizhalin, azo dyes, metal phthalocyanine or kiton colors.In water-base preparation, for preventing moldy metamorphism, need to add a certain amount of preservative of people, described preservative has Sodium Benzoate, polyformaldehyde, sorbitol, formalin, citric acid, to yl benzoic acid methyl esters, O-SyL sodium, 1,2-benzisothiazole-3-ketone (code name BIT) etc.
Above-mentioned auxiliary agent all is materials well known in the art, can obtain by various commercial channel.
The present composition can be used by commonsense method, as adds water spray and make cauline leaf and process, but also root is executed, and can also dress seed and seed pelleting uses.Amount of application of the present invention changes with weather condition and crop state, can prevent and treat purpose by reaching with suitable formulation.
Embodiment
The present invention is elaborated with following specific embodiment, but the present invention only limits to absolutely not these examples.Percentage all is weight percentage in all prescriptions.The processing technology of the various preparations of the present composition and equipment are known.
One, wetting powder processing and prescription:
Carbendazim, jinggangmycin A and tricyclazole are mixed in proportion with auxiliary agent, after airslide disintegrating mill is pulverized, mix again, make wetting powder.
Embodiment 1
Carbendazim 10%, jinggangmycin A 5%, tricyclazole 5%, Negel 2% pulls open powder 2%, and potter's clay is surplus;
Embodiment 2
Carbendazim 8%, jinggangmycin A 6%, tricyclazole 7%, lauryl sodium sulfate 4%, naphthalene sulfonic acid-formaldehyde condensation product 3%, diatomite are surplus;
Embodiment 3
Carbendazim 12%, jinggangmycin A 4%, tricyclazole 4%, sodium sulfate of polyethenoxy ether of fatty alcohol 4%, JFC 6%, and talcum powder is surplus.
Two, co-toxicity coefficient is measured
The composition of carbendazim jinggangmycin A tricyclazole is as follows to toxicity test method and the effect of Rhizoctonia solani Kuhn:
Rhizoctonia solani Kuhn is that the paddy rice diseased plant that gathers from the field separates cultivation 72 hours, gets a certain amount of medicament, prepares the mother liquor of each medicament by the active ingredient of medicament with acetone, then is diluted to the respective concentration liquid with sterile water and is prepared into medium.Then Rhizoctonia solani Kuhn is inoculated on the medium that contains liquid, other arranges a contrast, is placed in the insulating box to cultivate 72 hours.
Mycelial growth inhibition rate (%)=(contrast colony diameter-processing colony diameter)/(contrast colony diameter-bacterium cake diameter) * 100
Each is processed mycelial growth inhibition rate according to medicament, calculate each medicament EC50, calculate the toxicity index of medicament and the co-toxicity coefficient (CTC) of using with according to the abundant method of Sun Yun again, the CTC value is synergistic effect greater than 100, equaling 100 and be addition, is antagonism less than 100.
Table 1, composition are to rice sheath blight disease co-toxicity coefficient measurement result
The composition that can find out carbendazim jinggangmycin A tricyclazole from upper table all shows certain inhibition and preferably synergistic effect to Rhizoctonia solani Kuhn.
Three, the test of pesticide effectiveness
Embodiment 4
The preparation of embodiment 1 and carbendazim WP and jinggangmeisu are done the test of control rice sheath blight disease controlling.
Trial crops: paddy rice
Use the phase: Rise's boot period, banded sclerotial blight their early stage begin the dispenser control, execute medicine one time in 9 days behind the medicine again, and dispenser is twice altogether.
Investigation records:
Investigation state of an illness radix before the dispenser 10 is respectively investigated the PD situation one time before the i.e. for the second time dispenser in 9 days and after for the second time dispenser after for the first time dispenser.5 samplings of diagonal are adopted in the residential quarter investigation, get the 5 clumps of paddy rice that link to each other at every, and every residential quarter is investigated 25 clumps of paddy rice altogether, record total strain number and total number of sheets, diseased plant number and the sick number of sheets, get its mean value calculation disease index and control efficiency.
The drug effect computational methods:
Disease index=∑ [the corresponding value of series of diseased plants at different levels (leaf) number *]/[investigating total strain (leaf) number * 9] * 100%
Control efficiency (%)=(CK1 disease index-PT1 disease index)/CK1 disease index * 100%
Test data such as following table:
The result shows that carbendazim jinggangmycin A tricyclazole WP has higher preventive effect to rice sheath blight disease, the control efficiency of banded sclerotial blight reaches 86.11%-87.95% after twice dispenser, preventive effect than carbendazim, jinggangmeisu single dose is high, and the expansion effect of certain inhibition rice sheath blight disease is arranged.
Embodiment 5
The preparation of embodiment 2 and carbendazim WP and jinggangmeisu are done the control test of control rice blast.
Trial crops: paddy rice
Use the phase: Rise's boot period, select at the rice blast their early stage that irrigation and drainage are convenient, growing way is even, the heavier field of fall ill is carried out dispenser and is prevented and treated, and executes medicine one time.
Investigation records:
Before dispenser and after the dispenser each investigation in 7 days, 14 days once, the fixed point investigation of every residential quarter, is looked into disease clump number, the diseased plant number calculates diseased plant rate and sick index again by every many clumps.
The drug effect computational methods:
* 100% is counted in diseased plant rate (%)=diseased plant number/total strain of investigation
Disease index=∑ [the corresponding value of series of diseased plants at different levels (leaf) number *]/[investigating total strain (leaf) number * 9] * 100%
Control efficiency (%)=(CK1 disease index-PT1 disease index)/CK1 disease index * 100%
Test data such as following table:
| Medicament | Diseased plant rate | Disease index | Control efficiency % | Rate of growth % |
| Blank | 11.09 | 1.76 | / | / |
| Carbendazim WP | 1.12 | 0.35 | 80.11 | 4.6 |
| Jinggangmeisu SP | 0.72 | 0.16 | 90.91 | 5.0 |
| Carbendazim jinggangmycin A tricyclazole WP | 0.38 | 0.04 | 98.95 | 7.5 |
The result shows that carbendazim jinggangmycin A tricyclazole WP has higher preventive effect to rice blast, 14 days control efficiency to rice blast reach 98.95% after the dispenser, preventive effect than carbendazim, jinggangmeisu single dose is high, and the expansion effect of certain inhibition rice blast arranged, and having the production that promotes paddy rice, the effect that improves output, paddy rice can on average increase production 7.5%.
Claims (4)
1. a microbicide compositions of preventing and treating rice disease is characterized in that: comprise following effective ingredient (by weight percentage): carbendazim 5-20%, jinggangmycin A 2-10%, tricyclazole 2-10%.
2. a kind of microbicide compositions of preventing and treating rice disease according to claim 1, it is characterized in that: by weight, described carbendazim is 7-15%, and jinggangmycin A is 4-8%, and tricyclazole is 3-7%.
3. a kind of microbicide compositions of preventing and treating rice disease according to claim 1, it is characterized in that: also comprise auxiliary agent, described auxiliary agent is by wetting agent, dispersant and media assemblage, by accounting for composition weight percentage, wetting agent 0.5-8%, dispersant 1-10%, filler are surplus.
4. a kind of microbicide compositions of preventing and treating rice disease according to claim 3, it is characterized in that: by weight, described wetting agent is 1-4%, and dispersant is 2-7%, and filler is surplus.
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| CN201110298274XA CN103027058A (en) | 2011-10-08 | 2011-10-08 | Fungicide composition for preventing and treating rice diseases |
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| CN201110298274XA CN103027058A (en) | 2011-10-08 | 2011-10-08 | Fungicide composition for preventing and treating rice diseases |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104642371A (en) * | 2015-02-03 | 2015-05-27 | 刘晓 | Rice pesticide |
| CN107318889A (en) * | 2017-06-27 | 2017-11-07 | 徐州农丰生物化工有限公司 | A kind of disinfectant for vegetables |
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| CN1269140A (en) * | 1999-03-29 | 2000-10-11 | 黄志桂 | Composition for preventing and controlling plant diseases |
| CN1478394A (en) * | 2003-07-10 | 2004-03-03 | 广州市化学工业研究所 | Bacteriocid composition |
| CN102106353A (en) * | 2009-12-25 | 2011-06-29 | 董长良 | Compound wettable powder for preventing and curing diseases of paddy rice |
| WO2011076726A2 (en) * | 2009-12-23 | 2011-06-30 | Bayer Cropscience Ag | Pesticidal compound mixtures |
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2011
- 2011-10-08 CN CN201110298274XA patent/CN103027058A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1183894A (en) * | 1996-12-01 | 1998-06-10 | 郦安江 | Sanduo mixture and its recompounding process |
| CN1269140A (en) * | 1999-03-29 | 2000-10-11 | 黄志桂 | Composition for preventing and controlling plant diseases |
| CN1478394A (en) * | 2003-07-10 | 2004-03-03 | 广州市化学工业研究所 | Bacteriocid composition |
| WO2011076726A2 (en) * | 2009-12-23 | 2011-06-30 | Bayer Cropscience Ag | Pesticidal compound mixtures |
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Non-Patent Citations (2)
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| 《安徽科技学院学报》 20080115 毕亚玲 等 "多菌灵、井冈霉素及其复配剂对水稻纹枯病菌的增效作用" 第21-24页，参见第24页第1段 1-4 第22卷, 第1期 * |
| 毕亚玲 等: ""多菌灵、井冈霉素及其复配剂对水稻纹枯病菌的增效作用"", 《安徽科技学院学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104642371A (en) * | 2015-02-03 | 2015-05-27 | 刘晓 | Rice pesticide |
| CN107318889A (en) * | 2017-06-27 | 2017-11-07 | 徐州农丰生物化工有限公司 | A kind of disinfectant for vegetables |
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Application publication date: 20130410 |