CN108849936A - A kind of bactericidal composition and its application containing tetramycin and pyraoxystrobin - Google Patents
A kind of bactericidal composition and its application containing tetramycin and pyraoxystrobin Download PDFInfo
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- CN108849936A CN108849936A CN201810754246.6A CN201810754246A CN108849936A CN 108849936 A CN108849936 A CN 108849936A CN 201810754246 A CN201810754246 A CN 201810754246A CN 108849936 A CN108849936 A CN 108849936A
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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
- A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
- A01N43/56—1,2-Diazoles; Hydrogenated 1,2-diazoles
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Abstract
The invention discloses a kind of bactericidal composition containing tetramycin and pyraoxystrobin and its applications, include a effective amount of tetramycin and pyraoxystrobin, further include conventional auxiliary element, wherein the weight ratio of tetramycin and pyraoxystrobin is 1~80: 1~80.Bactericidal composition produced by the present invention can be applied to prevention and treatment fruit tree, vegetables, the various bacteria of cereal crop, fungal disease, it is particularly applied to the prevention and treatment of prevention and treatment mandarin orange cucumber downy mildew, rice blast, wheat scab, it has obvious synergistic function, has delayed the drug resistance of pathogen, the lasting period is long, times for spraying and dosage are reduced, use cost is reduced.
Description
Technical field
The present invention relates to agricultural disease prevention and control fields, and in particular to a kind of bactericidal composition containing tetramycin and pyraoxystrobin 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 a variety of fungies, bacteriosis of wood.
Pyraoxystrobin (pyraoxystrobin), chemical name are (E) -2- [2- [[3- (4- chlorphenyl) -1- methyl-1 H- pyrrole
Azoles -5- oxygroup] methyl] phenyl] -3- methoxy-methyl acrylate, the broad-spectrum sterilization formulated by Shenyang Chemical Research Institute and developed
Agent.Its mechanism of action be by and cytochrome b cl complex combination, inhibit the electron transmission of mitochondria, to destroy disease
The synthesis of bacterium energy, plays bactericidal effect.Pyraoxystrobin can inhibit mycelia to grow and inhibit spore germination, to Deuteromycotina,
The pathogen of Mastigomycotina and Ascomycotina has good inhibitory effect, has to powdery mildew of cucumber, downy mildew obvious
Protective effect and therapeutic effect.
Downy mildew is the plant disease as caused by the downy mildew in fungi, general first to fall ill since lower blade, is fallen ill
Initial stage generates the water stain shape dot of light green, and scab edge is unobvious, and Later development is the irregular scab of yellow, blade back when humidity is big
The mould layer of canescence is generated, Dark grey is gradually become.Downy mildew is obligate parasite, with egg spore in the soil, invalid body or kind
(such as downy mildew of millet) overwintering on son, or hidden with mycelium overwintering (such as white in stem, bud (such as downy mildew of garpe) or seed
Dish downy mildew), become the primary source of infection of next year disease, Growing season is infected again by sporangium.
Cucumber downy mildew is commonly called as " horse race is dry ", " dry leaves ", and seedling stage or strain all can be aggrieved, mainly cause harm blade and stem,
Tendril and bennet are aggrieved less.Downy mildew is to occur that most universal, cause harm most serious disease, the state of an illness oncoming force in cucumber cultivation
Suddenly, severe disease is propagated fastly, such as prevents and treats not in time, destructive loss will be caused to cucumber.
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, generally occurs in nearly all producing region, especially in thermophilic, cloudy day and high humility
Climate zone area, rice blast occur frequent.Being very popular to will cause often of rice blast drops in production over a large area, or even total crop failure in flakes, sternly
Ghost image rings the yield and quality of crop, influences on Rice Production very big.Therefore, rice blast and banded sclerotial blight, bacterial leaf-blight and it is known as
Three major disease of rice.Rice blast has generation in each rice region in China, especially few with sunshine, and mist reveals duration long mountain area and hills
Area occur it is serious, when the popular time, the general underproduction 10%~20%, weight up to 40%~50%, or even total crop failure.
The wheat scab alias wheat head is withered, rotten wheat head, red wheat head, is one of Major Diseases of wheat.Wheat scab exists
The whole world generally occurs, and is distributed mainly on moist and half tide wet zone, and it is aggrieved serious to moisten rainy Temperate Region in China for especially weather.
In recent years, generation of the bacillary and fungal disease on crops is in apparent ascendant trend, and disease control is difficult
Degree also increasingly carrys out big, the change of pattern of farming, and the control efficiency of the rising of pathogen resistance, single dose is not so good as people's will, Yi Jinong
The abuse of medicine is all put forward new requirements to the selection to disease control medicament, and the prevention and treatment of plant disease is faced with huge choose
War.It would therefore be highly desirable to need a kind of green, safety, efficient pesticide control is prevented and treated to be directed to the disease of above-mentioned crop.
Summary of the invention
For above situation, inventor test and give birth to by a large amount of compound screenings survey experiment find a effective amount of pyraoxystrobin with
After tetramycin compounded combination, good inhibiting effect is shown to plurality of plant diseases, especially to cucumber downy mildew, rice
The prevention and treatment of rice blast, wheat scab has highly significant effect, and control efficiency is substantially better than the effect of each single dose, simultaneously also
Pesticide use amount can be reduced.
The present invention is intended to provide the bactericidal composition that a kind of control efficiency is prominent, dosage is low, can be used in preventing and treating cucumber cream
The corps diseases such as mildew, rice blast, wheat scab.
The present invention realizes above-mentioned purpose using following technical scheme：
It is a kind of to be combined containing tetramycin and the germicide of pyraoxystrobin, including a effective amount of active components A and active constituent B,
In, active components A is tetramycin, and active constituent B is pyraoxystrobin.
The weight amount ratio of active components A and active constituent B are 1~80: 1~80 in the bactericidal composition, preferred weight
Than being 1~70: 1~70.
The weight of active components A and active constituent B and the total weight percentage of bactericidal composition is accounted in the bactericidal composition
Than being 2%~80%.
In the bactericidal composition in addition to active components A and active constituent B, containing conventional pesticide auxiliary agent and it can also fill out
Material and/or solvent, and can prepare to obtain any dosage form allowed in pesticidal preparations by conventional method.
Bactericidal composition produced by the present invention is applied to the prevention and treatment of cucumber downy mildew, rice blast, wheat scab.
Wherein, the application of the bactericidal composition, dosage are 40-80g a.i./hm2。
The present invention compared to the prior art, has the advantages that：
1, tetramycin and pyraoxystrobin mix within the scope of certain proportion, to cucumber downy mildew, rice blast, gibberella saubinetii
The prevention and treatment of disease has obvious synergistic function；
2, the bactericidal composition dosage that tetramycin and pyraoxystrobin obtain after mixing within the scope of certain proportion is few, the lasting period
It is long, it is not easy to produce resistance, is the outstanding medicament of nuisanceless fruits and vegetables production green used, 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 cucumber downy mildew with pyraoxystrobin
Indoor inhibitory effect measuring method：The inhibition of cucumber downy mildew 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 wheat sharp eyespot 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 cucumber downy mildew50), then according to
Sun Yunpei's Method calculates co-toxicity coefficient (CTC), the results are 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 pyraoxystrobin different proportion to cucumber downy mildew indoor toxicity test
As shown in Table 1, the EC of tetramycin and pyraoxystrobin single dose to cucumber downy mildew50Respectively 2.09mg/L and 4.54mg/
L, and when tetramycin and pyraoxystrobin are mixed within the scope of 1~80: 1~80 weight ratio, co-toxicity coefficient (CTC) is all larger than 120, table
Reveal good synergistic effect, not simple summation action, wherein when tetramycin and pyraoxystrobin press 1: 1,1: 5,1: 20 weight
After amount is than compounding, especially pronounced to the synergistic effect of cucumber downy mildew, effect is best.
2 tetramycin of embodiment compounds the indoor toxicity test to rice blast with pyraoxystrobin
Indoor inhibitory effect measuring method：Inhibition using growth rate method measurement bactericidal composition to rice blast fungus
Effect.It is that the mycelia block of 5mm is inoculated into respectively containing not that the root rotof flax bacterium colony edge that 4d is cultivated from PDA culture medium, which takes diameter,
With on the PDA culture medium plate of concentration fungicide, constant temperature incubation at 28 DEG C is surveyed after 4d using being free of medicament plate as blank control
The colony diameter of each processing is measured, the inhibition percentage that medicament grows mycelia is calculated.Logarithm and mycelia by each treatment dosage
The probability value of growth inhibition ratio carry out regression analysis, and calculation processing fungicide is to concentration (EC in the inhibition of rice blast50), then
Co-toxicity coefficient (CTC) is calculated according to Sun Yunpei's Method, the results are 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 pyraoxystrobin different proportion to rice blast indoor toxicity test
As shown in Table 2, the EC of tetramycin and pyraoxystrobin single dose to rice blast50Respectively 2.21mg/L and 3.25mg/
L, and tetramycin and pyraoxystrobin, in 1~80: 1~80 weight ratio range mixture, co-toxicity coefficient (CTC) is all larger than 120, shows
Good synergistic effect, not simple summation action, wherein after tetramycin is compounded with pyraoxystrobin by 1: 5,20: 1 weight ratios,
Especially pronounced to the synergistic effect of rice blast, effect is best.
3 tetramycin of embodiment compounds the indoor toxicity test to wheat scab with pyraoxystrobin
Indoor inhibitory effect measuring method：Inhibition using growth rate method measurement bactericidal composition to fusarium graminearum
Effect.It is that the mycelia block of 5mm is inoculated into respectively containing not that the root rotof flax bacterium colony edge that 4d is cultivated from PDA culture medium, which takes diameter,
With on the PDA culture medium plate of concentration fungicide, constant temperature incubation at 28 DEG C is surveyed after 4d using being free of medicament plate as blank control
The colony diameter of each processing is measured, the inhibition percentage that medicament grows mycelia is calculated.Logarithm and mycelia by each treatment dosage
The probability value of growth inhibition ratio carry out regression analysis, and calculation processing fungicide is to concentration (EC in the inhibition of wheat scab50), then
Co-toxicity coefficient (CTC) is calculated according to Sun Yunpei's Method, the results are shown in Table 3.
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.
3 tetramycin of table is compounded with pyraoxystrobin different proportion to wheat scab indoor toxicity test
As shown in Table 3, the EC of tetramycin and pyraoxystrobin single dose to wheat scab50Respectively 2.35mg/L and 4.87mg/
L, and when tetramycin and pyraoxystrobin are mixed within the scope of 1~80: 1~80 weight ratios, co-toxicity coefficient (CTC) is all larger than 120, performance
Good synergistic effect out, not simple summation action, wherein to small after tetramycin and pyraoxystrobin are compounded in 1: 5 ratio
The synergistic effect of wheat head blight is especially pronounced, and effect is best.
Embodiment 4 prevents and treats the experiment of cucumber downy mildew field efficacy
Referring to National Standard of the People's Republic of China GB/T 17980.26-2000《Pesticide field efficacy medicine test criterion (one)
Bactericidal agent for preventing and treating cucumber downy mildew》It is tested.
1. experiment process：This experiment sets three concentration for the treatment of according to the difference of ingredient respectively, and comparison medicament is 20% respectively
Pyraoxystrobin suspending agent and the control of 0.3% tetramycin aqua and blank clear water.
2. test method：Each cell 66.7m2, each processing is repeated 3 times；Using conventional spray-on process, it is uniformly sprayed at leaf
Piece front and back sides.It comes into bloom and each prevention and treatment 1 time by spraying of cucumber expanding stage in cucumber, is administered 2 times altogether.It applies before the application and for the second time
7 days after medicine, disease index investigation is carried out respectively within 14 days, 21 days, 5 points of grab sample in every cell, according to national field trial phase
Pass standard carries out severity Scaling, calculates preventive effect.Experimental result is shown in Table 4.
4 tetramycin of table is compounded with pyraoxystrobin different proportion to cucumber downy mildew pharmacodynamic test
From table 4, it can be seen that tetramycin is excellent to the control efficiency of cucumber downy mildew within a certain ratio range with pyraoxystrobin
In tetramycin and pyraoxystrobin single dose control efficiency, composition shows excellent synergy in the case where being lower than single dose dosage
Property, lasting period are long.
Embodiment 5 prevents and treats the experiment of rice blast field efficacy
Referring to National Standard of the People's Republic of China GB/T 17980.19-2000《Pesticide field efficacy medicine test criterion (one)
Bactericidal agent for preventing and treating rice leaf diseases》It is tested.
1. experiment process：This experiment sets three concentration for the treatment of according to the difference of ingredient respectively, and comparison medicament is 20% respectively
Pyraoxystrobin suspending agent and the control of 0.3% tetramycin aqua and blank clear water.
2. test method：Each cell 66.7m2, each processing is repeated 3 times；In rice plant of tillering stage, rice blast early stage
It is administered, is administered again within 7 days after first time medicine 1 time, twice, conventional spray-on process application is moistened with rice leaf as standard for medication in total,
And 14d, 21d carry out disease index investigation after 7d, last medicine before medicine, after last medicine.It is taken at random in experiment process area
5 points of sample, severity Scaling is carried out according to national field trial relevant criterion, calculates preventive effect.Experimental result is shown in Table 5.
5 tetramycin of table is compounded with pyraoxystrobin different proportion to rice blast pharmacodynamic test
As can be seen from Table 5, tetramycin and pyraoxystrobin within the scope of certain proportion after compounded combination in relatively low dosage
Under to the control efficiency of rice blast better than tetramycin and pyraoxystrobin single dose control efficiency, composition is lower than single dose dosage
In the case of show excellent synergetic, the lasting period is long.
Embodiment 6 prevents and treats the experiment of wheat scab field efficacy
Referring to National Standard of the People's Republic of China《NY/T1464.15-2007 pesticide field efficacy medicine test criterion the 15th
Point：Bactericidal agent for preventing and treating wheat scab is tested only.
1. experiment process：This experiment sets three concentration for the treatment of according to the difference of ingredient respectively, and comparison medicament is 20% respectively
Pyraoxystrobin suspending agent and the control of 0.3% tetramycin aqua and blank clear water.
2. test method：Each cell 66.7m2, each processing is repeated 3 times；Using conventional spray-on process, it is uniformly sprayed at leaf
Piece front and back sides are administered for the first time at wheat flowering initial stage, and the 2nd application after 7 days is administered 2 times altogether, applies before application and for the second time
Disease index is investigated after 7 days, after 14 days, after 21 days after medicine.5 points of grab sample in experiment process area are tried according to national field
It tests relevant criterion and carries out severity Scaling, calculate preventive effect.Experimental result is shown in Table 6.
6 tetramycin of table is compounded with pyraoxystrobin different proportion to wheat scab pharmacodynamic test
As can be seen from Table 6, tetramycin and pyraoxystrobin within the scope of certain proportion after compounded combination in relatively low dosage
Under to the control efficiency of wheat scab better than tetramycin and pyraoxystrobin single dose control efficiency, composition is lower than single dose dosage
In the case of show excellent synergetic, the lasting period is long.
The preparation of emulsifiable concentrate of the embodiment 7 containing tetramycin and pyraoxystrobin
Component includes：Tetramycin 15%, the third oxygen quinoline 15%, methanol 5%, calcium dodecyl benzene sulfonate 3%, styryl benzene
Phenol polyethenoxy ether 4%, aromatic solvent naphtha supplies 100%.
Preparation process is：Material is weighed by said ratio, tetramycin, pyraoxystrobin methanol, aromatic solvent naphtha is thoroughly molten
Solution, with calcium dodecyl benzene sulfonate, styrylphenol polyoxyethylene ether, which is sufficiently mixed, uniformly obtains 30% tetramycin azoles bacterium
Ester microemulsion.
The preparation of microemulsion agent of the embodiment 8 containing tetramycin and pyraoxystrobin
Component includes：Tetramycin 4%, pyraoxystrobin 6%, ethyl alcohol 5%, dimethylbenzene 15%, succinate 12%, aryl polyoxy
Alkyl ether 20%, water supplies 100%.
Preparation process is：Material is weighed by said ratio, tetramycin, pyraoxystrobin ethyl alcohol, 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 10% tetramycin pyraoxystrobin microemulsion.
The preparation of aqueous emulsion agent of the embodiment 9 containing tetramycin and pyraoxystrobin
Component includes：Tetramycin 10%, pyraoxystrobin 15%, dimethylbenzene 10%, aromatic solvent naphtha 30%, detergent alkylate sulphur
Sour calcium 6%, phenethyl phenol formaldehyde resin polyoxyethylene ether 8%, propylene glycol 5%, water supplies 100%.
Preparation process is：Material is weighed by said ratio, tetramycin, pyraoxystrobin dimethylbenzene, aromatic solvent naphtha is thorough
Dissolution, is sufficiently mixed and oily phase is uniformly made with calcium dodecyl benzene sulfonate, phenethyl phenol formaldehyde resin polyoxyethylene ether, by the third two
It is uniformly mixed in alcohol investment 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
Hour to get to 25% tetramycin pyraoxystrobin aqueous emulsion.
The preparation of suspending agent agent of the embodiment 10 containing tetramycin and pyraoxystrobin
Component includes：Tetramycin 6%, pyraoxystrobin 30%, phosphoric acid ester wetting dispersing agent 6%, urea 4%, aluminium-magnesium silicate
0.4%, xanthan gum 0.2%, attapulgite 2%, sodium benzoate 0.2%, 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, attapulgite, sodium benzoate, defoaming agent are uniformly mixed, and tetramycin and pyraoxystrobin are then added while stirring.It will be above-mentioned
Material mixing shearing 30 minutes, it is uniformly mixed material.Partial size D90 is ground in sand mill less than 5 microns to get 36% 4
Mycin pyraoxystrobin suspending agent.
The preparation of water dispersible granules agent of the embodiment 11 containing tetramycin and pyraoxystrobin
Component includes：Tetramycin 5%, pyraoxystrobin 10%, arylsulphonate 2%, phosphate 3%, ammonium sulfate 20%, corn
Starch 10%, sodium gluconate supplies 100%.
Preparation process is：Weigh material by said ratio, by tetramycin, pyraoxystrobin, phosphate, ammonium sulfate, cornstarch,
Sodium gluconate puts into mixing machine and is uniformly mixed, and then carries out air-flow crushing.The good object of air-flow crushing is added in mixing machine
Material, water spray carry out fluidized bed prilling, are dried to moisture qualification under the conditions of 50-80 degree to get 15% tetramycin pyraoxystrobin moisture
Shot agent.
The preparation of wettable powder agent of the embodiment 12 containing tetramycin and pyraoxystrobin
Component includes：Tetramycin 5%, pyraoxystrobin 40%, alkylnaphthalene sulfonate formaldehyde condensation products 4%, isopropyl naphthalene sulfonic acid
Sodium 3%, white carbon black 4%, kaolin supplies 100%.
Preparation process is：Weigh material by said ratio, by tetramycin, pyraoxystrobin, alkylnaphthalene sulfonate formaldehyde condensation products,
Isopropyl naphthalene sulfonate, white carbon black, kaolin investment mixing and blending machine stir evenly, below air-flow crushing to 800 mesh to obtain the final product
45% tetramycin pyraoxystrobin wettable powder.
Claims (7)
1. a kind of bactericidal composition containing tetramycin and pyraoxystrobin, which is characterized in that including a effective amount of active components A and activity
Ingredient B, wherein active components A is tetramycin, and active constituent B is pyraoxystrobin.
2. bactericidal composition according to claim 1, which is characterized in that the weight of the active components A and active constituent B
Than being 1~80: 1~80.
3. bactericidal composition according to claim 1, which is characterized in that the weight of the active components A and active constituent B
Than being 1~70: 1~70.
4. bactericidal composition according to claim 1, which is characterized in that the weight of the active components A and active constituent B
It is 2%~80% with the percentage for accounting for total weight.
5. bactericidal composition any one of in -4 according to claim 1, which is characterized in that removed in the bactericidal composition
Active components A can also contain conventional pesticide auxiliary agent and filler and/or solvent, and by conventional method with except active constituent B
It can prepare to obtain any dosage form allowed in pesticidal preparations.
6. a kind of application of the bactericidal composition containing tetramycin and pyraoxystrobin, which is characterized in that be applied to crop cucumber downy mildew,
The prevention and treatment of rice blast, wheat scab.
7. the application of bactericidal composition according to claim 6, which is characterized in that the dosage of the bactericidal composition
For 40-80g a.i./hm2。
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103039459A (en) * | 2012-11-10 | 2013-04-17 | 海利尔药业集团股份有限公司 | Sterilization composition containing pyraoxystrobin and JS399-19 |
| CN103719097A (en) * | 2012-10-16 | 2014-04-16 | 海利尔药业集团股份有限公司 | Sterilization composition containing pyraoxystrobin and azoxystrobin |
| CN107646856A (en) * | 2017-09-22 | 2018-02-02 | 陕西西大华特科技实业有限公司 | A kind of bactericidal composition containing benziothiazolinone and the third oxygen quinoline |
-
2018
- 2018-07-10 CN CN201810754246.6A patent/CN108849936A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103719097A (en) * | 2012-10-16 | 2014-04-16 | 海利尔药业集团股份有限公司 | Sterilization composition containing pyraoxystrobin and azoxystrobin |
| CN103039459A (en) * | 2012-11-10 | 2013-04-17 | 海利尔药业集团股份有限公司 | Sterilization composition containing pyraoxystrobin and JS399-19 |
| CN107646856A (en) * | 2017-09-22 | 2018-02-02 | 陕西西大华特科技实业有限公司 | A kind of bactericidal composition containing benziothiazolinone and the third oxygen quinoline |
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Application publication date: 20181123 |