CN103210926A - Bactericide for preventing and treating sclerotinia rot of colza and preparation method thereof - Google Patents
Bactericide for preventing and treating sclerotinia rot of colza and preparation method thereof Download PDFInfo
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- CN103210926A CN103210926A CN2013101502458A CN201310150245A CN103210926A CN 103210926 A CN103210926 A CN 103210926A CN 2013101502458 A CN2013101502458 A CN 2013101502458A CN 201310150245 A CN201310150245 A CN 201310150245A CN 103210926 A CN103210926 A CN 103210926A
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- procymidone
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Abstract
The invention discloses a bactericide for preventing and treating sclerotinia rot of colza and a preparation method of the bactericide. The bactericide comprises tebuconazole raw powders, a procymidone raw powders, and a carrier, and further comprises two or more auxiliaries, wherein the preparation comprises 7-27% of tebuconazole raw powders, 5-20% of procymidone raw powders, 5-16% of auxiliaries and 37-83% of carrier. The preparation method comprises the following steps: A: weighing the tebuconazole raw powders and the procymidone raw powders according to the calculated dosage, adding the weighed tebuconazole raw powders and procymidone raw powders into a container, and then adding quantified auxiliaries and carrier into the container; B: uniformly mixing the auxiliaries, the tebuconazole raw powders, the procymidone raw powders, and the carrier, and milling the obtained mixture to be 320 meshes by using a jet mill to obtain the bactericide for preventing and treating the sclerotinia rot of colza. The bactericide for preventing and treating the sclerotinia rot of colza disclosed by the invention is reasonable in formulation, obvious in effect of preventing and treating the sclerotinia rot of colza, very good in sterilization effect, and good in compatibility of active ingredients, has a synergistic effect, reduces drug use cost, and slows the development of drug resistance. According to the preparation method, the implementation is easy, the operation is simple and convenient, the raw materials are easily available, the preparation cost is low, and the bactericide is conductive to the preparation by small-size and medium-size bactericide companies.
Description
Technical field
The invention belongs to agricultural technology field, more specifically relate to a kind of bactericide of preventing and treating sclerotinia rot of colza.Also relate to a kind of preparation method who prevents and treats the bactericide of sclerotinia rot of colza simultaneously, it is applicable to a kind of bactericidal composition of Tebuconazole and procymidone and purposes that composition is used to prevent and treat sclerotinia rot of colza of containing.
Technical background
Sclerotinia rot of colza (Sclerotinia sclerotiorum(Lib.) de Bary), belong to the Ascomycotina fungi.It is a kind of global fungal disease, this pathogen main harm rape leaf, stem stalk and pod, in all rape producing regions of China generation is arranged all, the most serious with the Yangtze river basin and the southeastern coastal areas, the general time incidence of disease is 10%～30%, the serious field piece incidence of disease of popular time can surpass 80%, and production loss has had a strong impact on the output and the quality of rape 5%～30%.
Tebuconazole (Tebuconazole), a kind of efficient, the wide spectrum of Beyer Co., Ltd exploitation, the triazole bactericidal agent of interior absorption have protection, treatment, eradicant action, and fungicidal spectrum is wide, the lasting period is long, can suppress the biosynthesis of the ergosterol of fungi.As seed treatment and foliar spray, not only activity is high, and the lasting period is long in worldwide for Tebuconazole at present.Be used to prevent and treat sclerotinia rot of colza, not only preventive effect is good, and have resistant to lodging, characteristics such as production-increasing function is obvious.
Procymidone (Procymidone) claims sclerotium ketone, Sukeling again, belongs to systemic fungicide.Botrytis sp bacterium and sclerotinite are had special efficacy, and particularly the area that the carbendazim series bactericidal agent is developed immunity to drugs can be used this medicine instead.Be used to prevent and treat gray mold, stalk break of vegetables, fruit tree, flowers etc.
For many years, China uses based on the benzimidazole germicide of carbendazim and thiophanate methyl with based on the dicarboximide fungicide of dimethachlon always and prevents and treats sclerotinia rot of colza, use continuously because of long-term, quickened the drug-fast generation of pathogen, this has caused very big threat to agricultural production and pesticide industry.In order to prevent and treat this disease effectively, we have filtered out the compounded combination of Tebuconazole and procymidone, and sclerotinia rot of colza is had good control efficiency, and can suspension of pesticide resistance generation.
Summary of the invention
The objective of the invention is to be to provide a kind of bactericide of preventing and treating sclerotinia rot of colza, prescription rationally, the effect of control sclerotinia rot of colza is remarkable, bactericidal effect is very good, it has synergistic effect, can reduce dosage, reduces drug cost, delay drug-fast development, provide the active ingredient compatibility good bactericide.
Another object of the present invention is to be to provide a kind of preparation method who prevents and treats the bactericide of sclerotinia rot of colza, and is easy to implement the method, easy and simple to handle, and raw material is easy to obtain, and processing cost is low, the processing of the middle-size and small-size agricultural chemicals of convenience company.
To achieve these goals, the present invention is by the following technical solutions:
A kind of bactericide of preventing and treating sclerotinia rot of colza of the present invention, except comprising the former powder of Tebuconazole (production of Jiangsu Huanghai Sea pesticide chemical Co., Ltd), the former powder of procymidone (Zhejiang standing grain benefit farmingization Co., Ltd produces), and carrier (diatomite, bentonite, the mixing of a kind of in kaolin or the attapulgite or two kinds) outside, in the following auxiliary agent two or more have also been added, mainly contain: neopelex, sodium lignin sulfonate, lauryl sodium sulfate, the NNO(naphthalene sulfonic acid formaldehyde condensation polymer), carboxymethyl cellulose, auxiliary agent DK8, auxiliary agent wgwinD06(auxiliary agent DK8 and wgwinD06 are the production of the youth of Shenzhen titanium bio tech ltd) in one or more mixing.The ratio of Tebuconazole and procymidone active ingredient is 7-21:5-15, is preferably 21:5, and more preferably 7:15 most preferably is 7:5.In preparation, the former powder content of Tebuconazole is 7-27%, and the content of the former powder of procymidone is 5-20%, and remaining is auxiliary agent (5-16%), carrier (37-83%).
Described procymidone (Sukeling) is low toxicity, efficient germicide.Former powder is white or light brown crystallization, and is water-soluble hardly, is soluble in acetone, dimethylbenzene etc., is slightly soluble in ethanol.Stable under acid condition, unstable under alkali condition, except that alkaline matter, can with other most of combined use of pesticides.
A kind of bactericide of preventing and treating sclerotinia rot of colza, it is made up of the mass fraction of following raw material:
Described carrier is the mixing of a kind of in diatomite, bentonite, kaolin, the attapulgite or two kinds;
Described auxiliary agent is the mixing of a kind of among neopelex, sodium lignin sulfonate, lauryl sodium sulfate, naphthalene sulfonic acid formaldehyde condensation polymer, carboxymethyl cellulose, DK8, the wgwinD06 or two-seven kinds.
A kind of bactericide of preventing and treating sclerotinia rot of colza, it forms (preferable range) by the mass fraction of following raw material:
A kind of bactericide of preventing and treating sclerotinia rot of colza, it forms (better scope) by the mass fraction of following raw material:
A kind of bactericide of preventing and treating sclerotinia rot of colza, it forms (better value) by the mass fraction of following raw material:
Fully mixing is after air-flow powder machine is pulverized with various auxiliary agents and filler etc., and mixing obtains 24% wetting powder product.
A kind of preparation method who prevents and treats the bactericide of sclerotinia rot of colza, its step is as follows:
A, take by weighing the former powder of Tebuconazole by calculating consumption, the former powder of procymidone adds quantitative auxiliary agent and carrier again in container;
B, with various auxiliary agents and the former powder of Tebuconazole, the former powder of procymidone, carrier (filler) fully mixing obtain a kind of bactericide of preventing and treating sclerotinia rot of colza after air-flow powder machine is crushed to certain fineness (95% by 320 mesh sieves).
A kind of fungicide compounding preparation, it is characterized in that active ingredient is: Tebuconazole, procymidone, and outside the carrier (one or more in diatomite, bentonite, kaolin or the attapulgite), also added in the following auxiliary agent two or more, mainly contain: neopelex, sodium lignin sulfonate, lauryl sodium sulfate, the NNO(naphthalene sulfonic acid formaldehyde condensation polymer), carboxymethyl cellulose, auxiliary agent DK8, auxiliary agent wgwinD06.In preparation, the former powder content of Tebuconazole is 7-27%, and the content of the former powder of procymidone is 5-20%, and remaining is auxiliary agent (5-16%), carrier (37-83%).Preparation of the present invention is mainly used in the control sclerotinia rot of colza.
The present invention compared with prior art has the following advantages and effect:
The present invention is mainly used in the control sclerotinia rot of colza, the subject matter that solves is that the effect of control Sclerotinia sclerotiorum is remarkable, delay drug-fast development, provide the active ingredient compatibility good bacteriocide formula, this prescription is in process, and the preparation method is simple, and needed raw material is easy to obtain, processing cost is low, the processing of the middle-size and small-size agricultural chemicals of convenience company.
Embodiment
Embodiment 1:
A kind of bactericide of preventing and treating sclerotinia rot of colza, it is made up of the mass fraction of following raw material:
A kind of preparation method who prevents and treats the bactericide of sclerotinia rot of colza the steps include:
A, take by weighing the former powder of Tebuconazole by calculating consumption, the former powder of procymidone adds quantitative auxiliary agent and carrier again in container;
B, with various auxiliary agents and the former powder of Tebuconazole, the former powder of procymidone, carrier abundant mixings such as (fillers) after air-flow powder machine is crushed to certain fineness (95% by 320 mesh sieves), obtain a kind of bactericide of preventing and treating sclerotinia rot of colza.
Various auxiliary agents and filler etc. are fully mixed after air-flow powder machine is pulverized, and mixing obtains 26% wetting powder product.
Embodiment 2:
A kind of bactericide of preventing and treating sclerotinia rot of colza, it is made up of the mass fraction of following raw material:
Preparation process is identical with embodiment 1.Various auxiliary agents and filler etc. are fully mixed after air-flow powder machine is pulverized, and mixing obtains 22% wetting powder product.
Embodiment 3:
A kind of bactericide of preventing and treating sclerotinia rot of colza, it is made up of the mass fraction of following raw material:
Preparation process is identical with embodiment 1.Various auxiliary agents and filler etc. are fully mixed after air-flow powder machine is pulverized, and mixing obtains 12% wetting powder product.
Embodiment 4:
A kind of bactericide of preventing and treating sclerotinia rot of colza, it forms (optimum value) by the mass fraction of following raw material:
Preparation process is identical with embodiment 1.Various auxiliary agents and filler etc. are fully mixed after air-flow powder machine is pulverized, and mixing obtains 48% wetting powder product.
The composite joint toxicity measuring of Tebuconazole and procymidone to Sclerotinia sclerotiorum:
This experiment be a material with rape in seedling stage (in two No. 10), and (SXMG, GSMG HLJMG) are object, and the prescription that carries out compound drug screens with the Sclerotinia sclerotiorum sensitive strain.The former powder of Tebuconazole that relates to and procymidone compares contrived experiment according to quality behind acetone solution.
Measure the agent of fungicide tebuconazole list, the agent of procymidone list and Different Weight inhibiting rate with reference to Sun Yunpei (1960) co-toxicity coefficient method, and be calculated as follows the mixture malicious factor altogether than combination.
The malicious factor=(the theoretical inhibiting rate of the actual inhibiting rate of mixture-mixture) theoretical inhibiting rate of X100/ mixture is total to the malicious factor being synergistic effect more than+20 altogether, is antagonism below-20, is summation action between-20 to+20.
Indoor joint toxicity measuring experiment is adopted and is contained toxic medium method, promptly in the PDA medium, add quantitative reagent agent (calculating) according to active ingredient, with the PDA medium of adding medicine not is contrast, the inoculation of cooling back is for the pathogen of examination, after waiting to inoculate 48h, measure the contrast and the colony growth diameter of different disposal respectively with the right-angled intersection method, calculating inhibiting rate and 50% effective concentration (EC
50) value.
The composite microbicide compositions of Tebuconazole and procymidone different proportion is as shown in table 1 to the experimental result of the joint toxicity measuring of Sclerotinia sclerotiorum.
The composite joint toxicity measuring of table 1 Tebuconazole and procymidone to Sclerotinia sclerotiorum
Annotate: the malicious factor is antagonism below-20 being synergistic effect more than+20 altogether, is summation action between-20 to+20.
The result shows: when Tebuconazole and procymidone were composite, both compound proportions all had synergistic effect in the 7-21:5-15 scope, and synergistic effect is the most obvious when the weight ratio of Tebuconazole and procymidone is 7:5.
The composite inhibition experiment of Tebuconazole and procymidone (7:5) to the rape leaf stalk break that exsomatizes
Tebuconazole and procymidone (7:5) are composite as the inhibition experiment of protectant to the rape leaf stalk break that exsomatizes
With suitable, the of the same size fresh rape leaf of the growth cycle that cultivates in advance, put into and contain the finite concentration (EC that is about each single agent
30Value) soaks 3min in the soup, after treating that blade dries, put into the 15CM culture dish that has certain humidity and contain filter paper, and then with preprepared bacterial classification inoculation on rape leaf, 2 bacterium pieces of each blade inoculation, be placed in 26 ℃ the incubator and cultivate, contrast adopts clear water to handle, and each medicament is established 6 repetitions.After 3 days, measure the colony growth diameter of contrast and different disposal respectively with the right-angled intersection method, and add up the incidence of disease, calculate inhibiting rate, control rate and be total to the malicious factor, experimental result is as shown in table 2.
Table 2 Tebuconazole and procymidone (7:5) are composite as the inhibition result of protectant to the rape leaf stalk break that exsomatizes
The result shows: this complex preparation combination (active ingredient of Tebuconazole and procymidone than for 7:5 time) as protectant when the control Sclerotinia sclerotiorum; comparing the inhibition effect with single separately time spent of two compositions improves obviously; control rate improves, and shows to have summation action.
Tebuconazole and procymidone (7:5) are composite as the inhibition experiment of therapeutic agent to the rape leaf stalk break that exsomatizes
With suitable, the of the same size fresh rape leaf of the growth cycle that cultivates in advance, put into the 15CM culture dish that has certain humidity and contain filter paper, and then will be in advance cultured bacterial classification inoculation on the rape leaf that cleaned, 2 bacterium pieces of each blade inoculation, be placed in 26 ℃ the incubator and cultivate, inoculate altogether about 30 wares.After 3 days, measure the colony growth diameter of inoculating rape leaf in each ware respectively with the right-angled intersection method, and then with containing the finite concentration (EC that is about each single agent
30Value) soup is sprayed to the rape leaf in each ware, and contrast adopts clear water to handle.Behind the 48h, measure the contrast and the colony growth diameter of different disposal respectively with the right-angled intersection method, calculate the size of scab before and after the spray medicine, calculate inhibiting rate and be total to the malicious factor according to formula, experimental result is as shown in table 3.
Table 3 Tebuconazole and procymidone (7:5) are composite as the inhibition result of therapeutic agent to the rape leaf stalk break that exsomatizes
The result shows: this complex preparation combination (when the active ingredient ratio of Tebuconazole and procymidone is 7:5), is compared effect with single separately time spent of two compositions and is increased when preventing and treating Sclerotinia sclerotiorum as therapeutic agent, shows to have summation action.
The composite control experiment of Tebuconazole and procymidone (7:5) to potted plant sclerotinia rot of colza
With suitable, the of the same size potted plant rape of the growth cycle that cultivates in advance, inoculate cultured in advance bacterial classification on rape leaf, 2 bacterium pieces of each blade inoculation, 4-6 blades of every basin inoculation, inoculate altogether about 20 basins, being placed on temperature is 26 ℃, and humidity is to cultivate in about 75% the greenhouse.After 3 days, measure colony growth diameter in each basin respectively with the right-angled intersection method, and then with containing the finite concentration (EC that is about each single agent
30Value) soup is sprayed to the rape leaf in each basin, and contrast adopts clear water to handle.Behind the 48h, measure the contrast and the colony growth diameter of different disposal respectively with the right-angled intersection method, calculate the size of scab before and after the spray medicine, calculate inhibiting rate and be total to the malicious factor according to formula, experimental result is as shown in table 4.
The composite control efficiency of table 4 Tebuconazole and procymidone (7:5) to potted plant sclerotinia rot of colza
The result shows: this complex preparation (active ingredient of Tebuconazole and procymidone than for 7:5 time) in the control sclerotinia rot of colza, is compared effect with single separately time spent of two compositions and is improved obviously during as therapeutic agent, shows to have obvious synergistic effect.
Claims (8)
1. bactericide of preventing and treating sclerotinia rot of colza, it is made up of the mass fraction of following raw material:
Raw material %
The former powder 7-27 of Tebuconazole
The former powder 5-20 of procymidone
Auxiliary agent
5-16
Carrier 37-83;
A kind of preparation method who prevents and treats the bactericide of sclerotinia rot of colza, its step is as follows:
A, take by weighing the former powder of Tebuconazole by calculating consumption, the former powder of procymidone adds quantitative auxiliary agent and carrier again in container;
B, with auxiliary agent and the former powder of Tebuconazole, the former powder of procymidone, carrier mixing after air-flow powder machine is crushed to 320 mesh sieves, obtain a kind of bactericide of preventing and treating sclerotinia rot of colza;
Described carrier is the mixing of a kind of in diatomite, bentonite, kaolin, the attapulgite or two kinds;
Described auxiliary agent is the mixing of a kind of among neopelex, sodium lignin sulfonate, lauryl sodium sulfate, naphthalene sulfonic acid formaldehyde condensation polymer, carboxymethyl cellulose, DK8, the wgwinD06 or two-seven kinds.
2. the described a kind of bactericide of preventing and treating sclerotinia rot of colza of claim 1 is characterized in that:
Raw material %
The former powder 8-25 of Tebuconazole
The former powder 7-18 of procymidone
Auxiliary agent 7-15
Carrier 42-78.
3. the described a kind of bactericide of preventing and treating sclerotinia rot of colza of claim 1 is characterized in that:
Raw material %
The former powder 10-20 of Tebuconazole
The former powder 10-15 of procymidone
Auxiliary agent
8-14
Carrier 51-72.
4. the described a kind of bactericide of preventing and treating sclerotinia rot of colza of claim 1 is characterized in that:
Raw material %
The former powder 14 of Tebuconazole
The former powder 10 of procymidone
Neopelex 3
Sodium lignin sulfonate 4
DK8 3
Bentonite 66.
5. the described a kind of bactericide of preventing and treating sclerotinia rot of colza of claim 1 is characterized in that:
Raw material %
The former powder 21 of Tebuconazole
The former powder 5 of procymidone
Neopelex 4
Sodium lignin sulfonate 5
wgwinD06 5
Bentonite 60.
6. the described a kind of bactericide of preventing and treating sclerotinia rot of colza of claim 1 is characterized in that:
Raw material %
The former powder 7 of Tebuconazole
The former powder 15 of procymidone
Neopelex 4
Carboxymethyl cellulose 5
DK8
4
Diatomite 65.
7. the described a kind of bactericide of preventing and treating sclerotinia rot of colza of claim 1 is characterized in that:
Raw material %
The former powder 27 of Tebuconazole
The former powder 20 of procymidone
Neopelex 3
Sodium lignin sulfonate 3
DK8
4
Diatomite 43.
8. the described a kind of bactericide of preventing and treating sclerotinia rot of colza of claim 1 is characterized in that:
Raw material %
The former powder 21 of Tebuconazole
The former powder 5 of procymidone
Neopelex 3
Sodium lignin sulfonate 3
DK8
4
Diatomite 64.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104230522A (en) * | 2014-08-18 | 2014-12-24 | 安徽农科爱是福粮油有限公司 | Pesticide-fertilizer mixing agent for oilseed rapes |
| CN106689163A (en) * | 2016-11-28 | 2017-05-24 | 河池市金城江区科学技术情报研究所 | Method for preventing and treating mulberry stalk break |
| CN109938036A (en) * | 2019-04-16 | 2019-06-28 | 亳州职业技术学院 | A kind of medicament composition can be used for preventing and treating Radix Paeoniae Alba sclerotiniose and its application |
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| CN102007917A (en) * | 2010-11-09 | 2011-04-13 | 浙江农林大学 | Composite bactericide and application thereof |
| CN102183611A (en) * | 2011-03-13 | 2011-09-14 | 浙江大学 | Method for detecting pesticide residue in white paeony root crude drug |
| EP2494867A1 (en) * | 2011-03-01 | 2012-09-05 | Bayer CropScience AG | Halogen-substituted compounds in combination with fungicides |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102007917A (en) * | 2010-11-09 | 2011-04-13 | 浙江农林大学 | Composite bactericide and application thereof |
| EP2494867A1 (en) * | 2011-03-01 | 2012-09-05 | Bayer CropScience AG | Halogen-substituted compounds in combination with fungicides |
| CN102183611A (en) * | 2011-03-13 | 2011-09-14 | 浙江大学 | Method for detecting pesticide residue in white paeony root crude drug |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104230522A (en) * | 2014-08-18 | 2014-12-24 | 安徽农科爱是福粮油有限公司 | Pesticide-fertilizer mixing agent for oilseed rapes |
| CN106689163A (en) * | 2016-11-28 | 2017-05-24 | 河池市金城江区科学技术情报研究所 | Method for preventing and treating mulberry stalk break |
| CN109938036A (en) * | 2019-04-16 | 2019-06-28 | 亳州职业技术学院 | A kind of medicament composition can be used for preventing and treating Radix Paeoniae Alba sclerotiniose and its application |
| CN109938036B (en) * | 2019-04-16 | 2021-05-14 | 亳州职业技术学院 | Pharmaceutical composition for preventing and treating radix paeoniae alba sclerotiniose and application thereof |
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Application publication date: 20130724 |