CN108849935A - A kind of bactericidal composition and its application containing tetramycin and isotianil - Google Patents
A kind of bactericidal composition and its application containing tetramycin and isotianil Download PDFInfo
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- CN108849935A CN108849935A CN201810754161.8A CN201810754161A CN108849935A CN 108849935 A CN108849935 A CN 108849935A CN 201810754161 A CN201810754161 A CN 201810754161A CN 108849935 A CN108849935 A CN 108849935A
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- isotianil
- tetramycin
- bactericidal composition
- rice
- active components
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
- A01N43/80—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,2
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- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
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- General Health & Medical Sciences (AREA)
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Abstract
The invention discloses a kind of bactericidal composition containing tetramycin and isotianil includes a effective amount of tetramycin and isotianil, wherein the weight of tetramycin and isotianil and the percentage for accounting for total weight are 2%~80%, co-ingredients supplemented by surplus.The bactericidal composition can be applied to prevention and treatment rice blast, and bakanae disease of rice has obvious synergistic function, and has delayed the drug resistance of pathogen, and the lasting period is long, reduces times for spraying and dosage, reduces use cost.
Description
Technical field
The present invention relates to agricultural disease prevention and control field, specifically a kind of bactericidal composition containing tetramycin and isotianil and
It is applied.
Background technique
Tetramycin category (tetramycin) is by S. ahygroscopicus Wuzhou subspecies (Streptomyces
Ahygroscopicussubsp.Wuzhouensis n.subsp) biological pesticide produced by strain liquid submerged fermentation, leads to
It crosses and inhibits the growth of mycelia to induce the resistance of crop, and promote plant growth, to reach prevention and treatment purpose, be suitable for each elite stand
The prevention and treatment of wood a variety of fungies, bacteriosis.
Isotianil (isotianil), molecular formula C11H5C12N3OS, molecular weight 298.15 are Bayer and Sumitomo
Learn the isothiazole class fungicide that common research and development are used to prevent and treat rice blast.The characteristics of isotianil, is that it is not to pathogen
Antibacterial action is generated, but reaches the mesh for resisting rice blast to the natural immunology defense of rice blast by excitation rice itself
, meanwhile, Beyer Co., Ltd points out, isotianil is the active constituent of first low usage amount for having induction of resistance effect, to ring
Border is friendly, is highly suitable for using during paddy growth, and in addition there are also certain insecticidal activities.
By sac fungus Magnaporthe grisea (Hebert) Barr. (Invisible element：Pyricularia grisea
Sacc. rice blast caused by) is one of most destructive disease and global fungal disease in Rice Production.Rice blast
Disease occurs in the period of entire paddy growth, almost all generally occurs in all producing regions, especially in thermophilic, cloudy day and high humility
Climate zone, rice blast occurs frequent.It when rice blast is very popular, often results in rice and drops in production over a large area, or even total crop failure in flakes, seriously
The yield and quality for influencing crop influences greatly Rice Production, and therefore, rice blast and banded sclerotial blight, bacterial leaf-blight simultaneously claim rice
Three major diseases.Rice blast has generation in each rice region in China, especially few with sunshine, and mist reveals duration long mountain area and knob
Occur serious, the popular time, the general underproduction 10%~20%, weight up to 40%~50%, or even total crop failure.
Bakanae disease of rice is also known as excessive growth disease, has generation in each rice region of China.Catch return to bakanae disease sick grain broadcast after
Often does not germinate or cannot be unearthed, and seedling stage morbidity sick seedling is thinner and taller than strong seedling, blade leaf sheath is elongated, and leaf color is yellowish, and root system development is not
Good, part sick seedling is dead before transplanting, there is light red or white mould powder, the i.e. conidium of pathogen on withered seedling, wet
When spending big, withered diseased plant surface covers with filbert or white powder mustiness object, and later period raw black dot, that is, germ softgel shell, disease is light to be mentioned
Early heading, fringe shape are small and not firm.Heading stage grain can also be aggrieved, serious browning, cannot be solid, the raw pale red of glume crevice place
Mould, disease does not show symptom gently, but internal existing mycelia is latent.
For above situation, inventor has carried out in depth exploratory development, is tested by a large amount of compound screenings, screening obtains
A certain amount of tetramycin and isotianil compounded combination have a preferable effect to the prevention and treatment of rice blast and bakanae disease of rice, and the hair
It is not reported in document at home and abroad now.
Summary of the invention
The present invention is intended to provide a kind of control efficiency is prominent, the low bactericidal composition of dosage, for preventing and treating rice blast and water
The Bakanae disease of rice.
Above-mentioned purpose is implemented with the following technical solutions in the present invention：
One kind containing tetramycin and isotianil bactericidal composition, including a effective amount of active components A and active constituent B,
In, active components A is tetramycin, and active constituent B is isotianil.
In the bactericidal composition, in addition to a effective amount of active components A and active constituent B, also contain auxiliary agent and filler
And/or the auxiliary element in the necessary pesticidal preparations such as solvent, any dosage form in pesticidal preparations is made；And active components A
It is 2%~80% with the weight of active constituent B and the percentage for accounting for total weight, co-ingredients supplemented by surplus.
Active components A and the weight ratio of active constituent B are 1~80: 1~80 in the bactericidal composition, preferred weight
Than being 1~50: 1~70.
It is produced by the present invention to be applied to prevention and treatment rice blast and rice evil containing tetramycin and isotianil bactericidal composition
Seedling diseases.
The application of the bactericidal composition, dosage are 45-80g a.i./hm2。
Compared to the prior art, its advantages are the present invention：
1, synergistic after tetramycin and isotianil mix within the scope of certain proportion, to rice blast and rice
Bakanae disease has preferable control efficiency；
2, after tetramycin and isotianil mix within the scope of certain proportion, dosage is few, and the lasting period is long, and is not likely to produce
Resistance is the outstanding medicament of the green of pollution-free food production a kind of, safety.
Specific embodiment
Technical solution of the present invention and technical effect are described further below with reference to specific embodiment, but the present invention
Embodiment be not limited to the embodiment the range of statement.
1 tetramycin of embodiment compounds the indoor toxicity test to rice blast with isotianil
Indoor inhibitory effect measuring method：Suppression using growth rate method measurement bactericidal composition to rice Pyricularia grisea
Production is used.The take-all bacterium colony edge of culture 4d takes diameter to be inoculated into respectively for the mycelia block of 5mm and contains from PDA culture medium
On the PDA culture medium plate of various concentration fungicide, constant temperature incubation at 28 DEG C, to be free of medicament plate as blank control, after 4d
The colony diameter of each processing is measured, the inhibition percentage that medicament grows mycelia is calculated.Logarithm and bacterium by each treatment dosage
The probability value of silk growth inhibition ratio carry out regression analysis, and calculation processing fungicide is to concentration (EC in the inhibition of rice blast50),
Co-toxicity coefficient (CTC) is calculated according to Sun Yunpei's Method again, measurement result is shown in Table 1.
When CTC≤80, then composition shows as antagonism, and as 80 < CTC < 120, then composition shows as being added and make
With when CTC >=120, then composition shows as synergistic effect.
Survey toxicity index (ATI)=(standard agent EC50/ for reagent effect EC50)×100；
The toxicity index of the percentage composition+B medicament of A in toxicity index × mixture of theoretical virulence coefficient (TTI)=A medicament
The percentage composition of B in × mixture；
Co-toxicity coefficient (CTC)=[mixture surveys toxicity index (ATI)/mixtures theoretical toxicity index (TTI)] × 100.
1 tetramycin of table is compounded with isotianil different proportion to rice blast indoor toxicity test
As shown in Table 1, tetramycin, isotianil single dose are to the EC of rice blast50Respectively 2.04mg/L and 7.69mg/
L, and tetramycin and isotianil, in 80: 1~1: 80 weight ratio range, co-toxicity coefficient (CTC) is all larger than 120, shows good
Good synergistic effect, not simple summation action, wherein to rice blast after the two is compounded in 1: 1~1: 20 ratios
Synergistic effect is especially pronounced.
2 tetramycin of embodiment compounds the indoor toxicity test to bakanae disease of rice with isotianil
Indoor inhibitory effect measuring method：The inhibition of bakanae disease of rice is made using growth rate method measurement bactericidal composition
With.It is that the mycelia block of 5mm is inoculated into respectively containing difference that the bakanae disease of rice bacterium colony edge that 4d is cultivated from PDA culture medium, which takes diameter,
On the PDA culture medium plate of concentration fungicide, constant temperature incubation at 28 DEG C, as blank control, to be measured after 4d without medicament plate
The colony diameter respectively handled calculates the inhibition percentage that medicament grows mycelia.It is raw by the logarithm of each treatment dosage and mycelia
The probability value of long inhibiting rate carry out regression analysis, and calculation processing fungicide is to concentration (EC in the inhibition of bakanae disease of rice50), then according to
Sun Yunpei's Method calculates co-toxicity coefficient (CTC), and measurement result is shown in Table 2.
When CTC≤80, then composition shows as antagonism, and as 80 < CTC < 120, then composition shows as being added and make
With when CTC >=120, then composition shows as synergistic effect.
Survey toxicity index (ATI)=(standard agent EC50/ for reagent effect EC50)×100；
The toxicity index of the percentage composition+B medicament of A in toxicity index × mixture of theoretical virulence coefficient (TTI)=A medicament
The percentage composition of B in × mixture；
Co-toxicity coefficient (CTC)=[mixture surveys toxicity index (ATI)/mixtures theoretical toxicity index (TTI)] × 100.
2 tetramycin of table is compounded with isotianil different proportion to bakanae disease of rice indoor toxicity test
As shown in Table 2, tetramycin, isotianil single dose are to the EC of bakanae disease of rice50Respectively 1.98mg/L and 7.49mg/
L, and the weight ratio of tetramycin and isotianil mixture is at 80: 1~1: 80, co-toxicity coefficient (CTC) is all larger than 120, shows
Good synergistic effect out, not simple increasing action, wherein to rice after the two is compounded in 1: 1,1: 5,1: 20 ratio
The synergistic effect of bakanae disease is especially pronounced.
Embodiment 3 prevents and treats the experiment of rice blast field efficacy
Test is referring to GB/T 17980.19-2000《Pesticide field efficacy medicine test criterion (one) bactericidal agent for preventing and treating rice leaf portion
Disease》It carries out.
1. experiment process：This experiment sets three concentration for the treatment of according to the difference of ingredient respectively, and comparison medicament is 30% respectively
Isotianil suspending agent and the control of 0.3% tetramycin aqua and blank clear water.
2. test method：Each cell 66.7m2, every processing are repeated 3 times；In rice plant of tillering stage, rice blast early stage is adopted
Be administered with conventional spray-on process, be administered within 7 days 1 time after medicine again, in total medication twice, before application and 7 days after being administered for second,
14 days, 21 days investigation disease indexs.5 points of grab sample in experiment process area are carried out according to national field trial relevant criterion
Severity Scaling calculates preventive effect.Experimental result is shown in Table 3.
3 tetramycin of table is compounded with isotianil different proportion to rice blast pharmacodynamic test
From table 3 it can be seen that the bactericidal composition after tetramycin and isotianil mixture is under relatively low dosage to water
The control efficiency of rice rice blast is better than comparison medicament control efficiency, and composition shows excellent in the case where being lower than single dose dosage
Synergetic, the lasting period is long.
Embodiment 4 prevents and treats the experiment of bakanae disease of rice field efficacy
Test is referring to GB/T 17980.104-2004《The 104th part of pesticide field efficacy medicine test criterion (two)：Fungicide
Prevent and treat bakanae disease of rice》It carries out.
1. experiment process：This experiment sets three concentration for the treatment of according to the difference of ingredient respectively, and comparison medicament is 30% respectively
Isotianil suspending agent and the control of 0.3% tetramycin aqua and blank clear water.
2. test method：Each cell 66.7m2, every cell is repeated 3 times；It is administered 7 days, 14 days, 21 after preceding and last is administered
Its investigation disease index.5 points of grab sample in experiment process area carry out the state of an illness point according to national field trial relevant criterion
Grade calculates preventive effect.Experimental result is shown in Table 4.
4 tetramycin of table is compounded with isotianil different proportion to bakanae disease of rice pharmacodynamic test
From table 4, it can be seen that the bactericidal composition after tetramycin and isotianil mixture is under relatively low dosage to water
The control efficiency of the Bakanae disease of rice is better than comparison medicament control efficiency, and composition shows excellent in the case where being lower than single dose dosage
Synergetic, the lasting period is long.
Preparation of the embodiment 5 containing tetramycin and isotianil missible oil
Component includes：Tetramycin 5%, isotianil 15%, dimethylbenzene 10%, calcium dodecyl benzene sulfonate 3%, styrene
Base phenol polyoxyethylene ether 3.5%, alkyl phenol formaldehyde resin polyoxyethylene ether 1.5%, aromatic solvent naphtha supplies 100%.
Preparation process is：Material is weighed by said ratio, tetramycin, isotianil dimethylbenzene, aromatic solvent naphtha is thorough
Bottom dissolution, it is abundant with calcium dodecyl benzene sulfonate, styrylphenol polyoxyethylene ether, alkyl phenol formaldehyde resin polyoxyethylene ether
It is uniformly mixed to get to 20% tetramycin isotianil missible oil.
Preparation of the embodiment 6 containing tetramycin and isotianil microemulsion
Component includes：Tetramycin 10%, isotianil 20%, methanol 5%, dimethylbenzene 10%, succinate 10%, aryl
Polyoxyalkyl ether 15%, water supplies 100%.
Preparation process is：Material is weighed by said ratio, tetramycin, isotianil methanol, dimethylbenzene are thoroughly dissolved,
With succinate, aryl polyoxyalkyl ether, which is sufficiently mixed, is uniformly made oily phase, then adds water in oily phase, is stirred well to
Bright shape is to get to 30% tetramycin isotianil microemulsion.
Preparation of the embodiment 7 containing tetramycin and isotianil aqueous emulsion
Component includes：Tetramycin 5%, isotianil 5%, dimethylbenzene 10%, aromatic solvent naphtha 30%, detergent alkylate sulphur
Sour calcium 6%, dimethyl benzene phenol polyethenoxy ether 8%, propylene glycol 5%, water supplies 100%.
Preparation process is：Material is weighed by said ratio, tetramycin, isotianil dimethylbenzene, aromatic solvent naphtha is thorough
Bottom dissolution, is sufficiently mixed with calcium dodecyl benzene sulfonate, dimethyl benzene phenol polyethenoxy ether and oily phase is uniformly made, propylene glycol is thrown
Enter and be uniformly mixed in water as water phase, under 3000 revs/min of high shear agitations, during the oil phase is added to the aqueous phase, shearing dispersion 1 is small
When to get to 10% tetramycin isotianil aqueous emulsion.
Preparation of the embodiment 8 containing tetramycin and isotianil suspending agent
Component includes：Tetramycin 5%, isotianil 30%, phosphoric acid ester wetting dispersing agent 5%, urea 4%, magnesium silicate
Aluminium 1.4%, xanthan gum 0.2%, white carbon black 5%, organic silicon defoamer 0.5%, water supplies 100%.
Preparation process is：Weigh material by said ratio, by water, phosphoric acid ester wetting dispersing agent, urea, aluminium-magnesium silicate,
Xanthan gum, white carbon black, defoaming agent are uniformly mixed, and tetramycin and isotianil are then added while stirring.Above-mentioned material is mixed
Shearing 30 minutes is uniformly mixed material.Partial size D90 is ground in sand mill less than 5 microns to get the different thiophene of 35% tetramycin
Bacterium amine suspending agent.
Preparation of the embodiment 9 containing tetramycin and isotianil wettable powder
Component includes：Tetramycin 3%, isotianil 27%, neopelex 3%, pull open powder 5%, white carbon black
4%, anhydrous sodium sulphate 15%, kaolin supplies 100%.
Preparation process is：Material is weighed by said ratio, by tetramycin, isotianil, neopelex, is pulled open
Powder, white carbon black, anhydrous sodium sulphate, kaolin investment mixing and blending machine stir evenly, mould up to 30% 4 below air-flow crushing to 800 mesh
Plain isotianil wettable powder.
Preparation of the embodiment 10 containing tetramycin and isotianil water dispersible granules
Component includes：Tetramycin 5%, isotianil 10%, neopelex 2%, import wood patch up 4%, NNO
4%, ammonium sulfate 20%, cornstarch 10%, sodium gluconate supplies 100%.
Preparation process is：Material is weighed by said ratio, by tetramycin, isotianil, neopelex, import
The wooden patchwork vestment worn by a Buddhist monk, NNO, ammonium sulfate, cornstarch, sodium gluconate put into mixing machine and are uniformly mixed, and then carry out air-flow crushing.Mixed
The good material of air-flow crushing is added in conjunction machine, water spray carries out fluidized bed prilling, moisture qualification is dried under the conditions of 50-80 degree,
Up to 15% tetramycin isotianil water dispersible granules.
Claims (7)
1. a kind of bactericidal composition containing tetramycin and isotianil, which is characterized in that including a effective amount of active components A and work
Property ingredient B, wherein active components A is tetramycin, and active constituent B is isotianil.
2. bactericidal composition according to claim 1, which is characterized in that in the bactericidal composition, remove a effective amount of work
Except property ingredient A and active constituent B, also containing the auxiliary element in the necessary pesticidal preparations such as auxiliary agent and filler and/or solvent,
Any dosage form in pesticidal preparations is made.
3. bactericidal composition according to claim 1, which is characterized in that active components A and the weight of active constituent B and account for
The percentage of total weight is 2%~80%, co-ingredients supplemented by surplus.
4. bactericidal composition according to claim 1, which is characterized in that active components A and work in the bactericidal composition
Property ingredient B weight ratio be 1~80: 1~80.
5. bactericidal composition according to claim 1, which is characterized in that active components A and work in the bactericidal composition
Property ingredient B weight ratio be 1~50: 1~70.
6. a kind of application of the bactericidal composition containing tetramycin and isotianil, which is characterized in that be applied to prevention and treatment rice rice blast
Disease and bakanae disease of rice.
7. a kind of application of bactericidal composition containing tetramycin and isotianil according to claim 6, which is characterized in that
The application of the bactericidal composition, dosage are 45-80g a.i./hm2。
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112931513A (en) * | 2021-02-08 | 2021-06-11 | 菏泽龙歌植保技术有限公司 | Bactericide, preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105230640A (en) * | 2015-10-31 | 2016-01-13 | 青岛奥迪斯生物科技有限公司 | Bactericidal composition containing tetramycin and benziothiazolinone |
| CN108477189A (en) * | 2018-06-05 | 2018-09-04 | 广东中迅农科股份有限公司 | A kind of composition pesticide containing tetramycin and isotianil |
| CN109805023A (en) * | 2017-11-22 | 2019-05-28 | 山东玉江源环保科技有限公司 | A kind of bactericidal composition |
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2018
- 2018-07-10 CN CN201810754161.8A patent/CN108849935A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105230640A (en) * | 2015-10-31 | 2016-01-13 | 青岛奥迪斯生物科技有限公司 | Bactericidal composition containing tetramycin and benziothiazolinone |
| CN109805023A (en) * | 2017-11-22 | 2019-05-28 | 山东玉江源环保科技有限公司 | A kind of bactericidal composition |
| CN108477189A (en) * | 2018-06-05 | 2018-09-04 | 广东中迅农科股份有限公司 | A kind of composition pesticide containing tetramycin and isotianil |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112931513A (en) * | 2021-02-08 | 2021-06-11 | 菏泽龙歌植保技术有限公司 | Bactericide, preparation method and application thereof |
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Application publication date: 20181123 |