CN107711848A - A kind of bactericidal composition and its application process for preventing and treating rice blast - Google Patents
A kind of bactericidal composition and its application process for preventing and treating rice blast Download PDFInfo
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- CN107711848A CN107711848A CN201710118650.XA CN201710118650A CN107711848A CN 107711848 A CN107711848 A CN 107711848A CN 201710118650 A CN201710118650 A CN 201710118650A CN 107711848 A CN107711848 A CN 107711848A
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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
- A01N43/54—1,3-Diazines; Hydrogenated 1,3-diazines
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G13/00—Protecting plants
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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
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/12—Powders or granules
- A01N25/14—Powders or granules wettable
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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
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/44—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a nitrogen atom attached to the same carbon skeleton by a single or double bond, this nitrogen atom not being a member of a derivative or of a thio analogue of a carboxylic group, e.g. amino-carboxylic acids
- A01N37/50—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a nitrogen atom attached to the same carbon skeleton by a single or double bond, this nitrogen atom not being a member of a derivative or of a thio analogue of a carboxylic group, e.g. amino-carboxylic acids the nitrogen atom being doubly bound to the carbon skeleton
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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
- A01N39/00—Biocides, pest repellants or attractants, or plant growth regulators containing aryloxy- or arylthio-aliphatic or cycloaliphatic compounds, containing the group or, e.g. phenoxyethylamine, phenylthio-acetonitrile, phenoxyacetone
- A01N39/02—Aryloxy-carboxylic acids; Derivatives thereof
- A01N39/04—Aryloxy-acetic acids; Derivatives thereof
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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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- 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
- A01N43/82—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 three ring hetero atoms
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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
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having no bond to a nitrogen atom
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Abstract
The present invention relates to a kind of bactericidal composition and its application process for preventing and treating rice blast, each component of the bactericidal composition is according to following parts by weight：Bactericide：12‑30；Surfactant：3‑28；Oily matter：2‑30；White carbon：1‑10；Solid core core material：10‑80；KCl：1‑30；The bactericide is that weight ratio is 15:1‑1:5 fenoxanil and the mixture composition of Fluoxastrobin；The surfactant is that weight ratio is 1:20‑30:1 sulfonate lignin and the complexed surfactant of APES；The oily matter is that weight ratio is 1:10‑20:1 mineral oil and the compound oily matter of vegetable oil.The bactericidal composition is in dispersiveness, diffusion velocity and prevents and treats the equal excellent effect of rice blast, time saving and energy saving, has preferable production application value.
Description
Technical field
The present invention relates to pesticide field, and in particular to bactericide field, more particularly to the sterilization of preventing and treating rice blast
Composition and its application process.
Background technology
Rice blast is also known as rice blast, burns pest, pest of kowtowing, and is distributed in each rice region in the whole nation, mainly cause harm blade, stem
Stalk, fringe portion, because evil period, position difference are divided into seedling pest, leaf pest, section pest, panicle blast, grain pest, seedling pest, betide three leaves
Before.
Current preventing and treating is generally essentially divided into cultural control, physical control, chemical prevention, and wherein chemical prevention is mainly
By bactericidal agent for preventing and treating, 30% Hinosan missible oil, 500 times of liquid are such as used, 50% 500 times of liquid of sterilization Lingshui Spring soluble powder, 40% gram hundred
The liquid of bacterium suspension emulsion 500,25% 1500 times of Prochloraz missible oil liquid etc..
But applicant has found that rice blast is caused by seed-borne fungi, and sick seedling base portion is greyish black, top by prolonged research
Browning, crispatura and dead, generation a large amount of grey black mould layers in disease portion when humidity is larger, i.e. pathogen conidiophore and conidium.
Leaf pest can occur in whole breeding time, divide evil to the jointing stage to endanger heavier.Section pest often occur after heading, are just produced on rice section
Raw brown dot, after gradually make the blackening of disease portion around section extension, frangibilities, the withered dead ears of early formation occur, only being made what side occurred
Bent into stalk.Panicle blast just forms brown dot, makes fringe neck portion browning after putting exhibition, also results in withered dead ears；Morbidity evening causes
Not plump paddy, branch, which obstructs, or cob is aggrieved causes small ear unreal.
Pathogenesis of the one aspect of the present invention based on rice blast, the poudrage or emulsion of abandoning tradition（These preparations are big
It is more once broadcasting sowing down submerged, it is impossible to the germ of floating on water is worked well）, and select to float big granula,
Can directly in target；On the other hand, it has been found that when rice blast symptom occur in the seedling stage of paddy growth, in plant nutrition
Treated in growth phase.If rice shoot enter reproductive stage after carry out treat seedling stage aggrieved formation symptom, rice shoot is
Through can not restoration ecosystem again；Specifically select to carry out dispenser in the heart stage of two leaf of rice one.
The preparation suitable on rice terrace, applicant itself have done more research to rice terrace Agrotechnical formulation, such as
201310710822.4（A kind of big granula of paddy field weed-killer and preparation method thereof）, disclose herbicide pretilachlor, pyrazosulfuron
Big granula is mixed to prepare Deng with auxiliary agents such as alkylamide APEO, phenyl phenol polyethenoxy ethers；201410670721.3（One
Paddy field weed-killer big granula of the kind containing pyrazosulfuron and dichloro quinolinic acid）, disclose containing above-mentioned active component and surface-active
The auxiliary agents such as agent, oily matter, solid core core material are mixed to prepare big granula；201610290446.1（One kind preventing and treating rice rice blast
The composition of disease and rice blast floats big granula and preparation method thereof）Also disclose containing active component, dispersant, expansion
The big granula that the auxiliary agents such as spreader are mixed to prepare；But applicant has found that it had previously been developed big by later stage considerable research
Granula facilitates unsatisfactory in the dispersiveness, stability and slow release effect of big granula, therefore applicant is by adjusting big granula
In multiple components and respective components content, newly develop the more excellent big granule formulations of effect.
On preventing and treating the active component of rice blast, applicant retrieves following prior art：Chinese patent
2015100276459（A kind of bactericidal composition containing fenoxanil, Fluoxastrobin and thifluzamide）Disclose containing fenoxanil, phonetic
Bacterium ester and thifluzamide, its preparation is wettable powder, water dispersion granule, suspending agent, micro-capsule suspension, suspension emulsion, micro-
Emulsion, aqueous emulsion or missible oil；Chinese patent 2009102097405（A kind of composition pesticide containing protective fungicide）It is open
The combination of fenoxanil and probenazole, and 201210271399 disclose fenoxanil and SSF 126, but
Formulation this respect, also it is only to be configured to traditional pesticidal preparations, does not consider the characteristic of rice blast, make suitable preventing and treating
The preparation of the special disease.
The content of the invention
It is an object of the invention to provide a kind of bactericidal composition of effectively preventing and treating rice blast, the selection of its one side are special
Fixed fungicide active ingredient combination, it is often more important that by the sterilization component formulated in combination into the preparation shape for specifically floating big granula
Formula, realize effectively preventing and treating rice blast.
The present invention is achieved through the following technical solutions：
A kind of bactericidal composition for preventing and treating rice blast, it is characterised in that each component of the bactericidal composition is according to as follows
Parts by weight：
Bactericide：12-30；
Surfactant：3-28；
Oily matter：2-30；
White carbon：1-10；
Solid core core material：10-80
KCl：1-30；
The bactericide is that weight ratio is 15:1-1:5 fenoxanil and the mixture composition of Fluoxastrobin；
The surfactant is that weight ratio is 1:20-30:1 sulfonate lignin and the composite table of APES
Face activating agent；
The oily matter is that weight ratio is 1:10-20:1 mineral oil and the compound oily matter of vegetable oil.
Preferably, the dosage of bactericide is 20-30 parts by weight, more preferably 24 parts by weight；
Preferably, the bactericide is that weight ratio is 5:1-1:1, most preferably 3:1；
Preferably, the dosage of surfactant is 5-25 parts by weight, more preferably 8-20 parts by weight, most preferably 15-18 weight
Part；
Preferably, in complexed surfactant, the weight ratio of sulfonate lignin and APES is 1:10-15:
1, more preferably 1:3-5:1, most preferably 2:1；
Preferably, the dosage of compound oily matter is 5-25, more preferably 10-20, most preferably 14-16；
Preferably, in compound oily matter, the weight ratio of mineral oil and vegetable oil is 1:5-10:1, more preferably 1:2-4:1, most
Preferably 2:1.
The solid core core material is calcining float stone, calcines vermiculite, obsidian, perlite or glass pearl；Most preferably
Glass pearl.
Optionally, the bactericide can be 15:1-1:5 fenoxanil with selected from probenazole, SSF 126, different
Metsulfovax, tiadinil, thifluzamide, Boscalid, folpet, iprodione the second component mixture composition；Most preferably
The two is 3:1；
Preferably, on the basis of the bactericide can be the mixture composition of above-mentioned fenoxanil and Fluoxastrobin, choosing is added
From the third component of probenazole, SSF 126, isotianil, thifluzamide or tiadinil, wherein mixture composition with
The amount ratio of third component is 1:1；Preferably, third component is probenazole or thifluzamide.
Further, the present invention provides a kind of method for preventing and treating rice blast, it is characterised in that is thrown before disease occurs
It is sprinkled with and states bactericidal composition, realize preventive effect, while strengthens the resistance and immunity of plant.
Further, the present invention provides a kind of method for preventing and treating rice blast, it is characterised in that in rice transfer field
In, thrown after rice transplanting and apply above-mentioned bactericidal composition；Or in direct sowing of rice Tanaka, thrown when rice length to two one heart stage of leaf apply it is above-mentioned
Bactericidal composition；Dosage is 10-30g/ mus.
On the principle and effect of prevention and controls of the present invention, it is described as follows：
On floating the selection of big granula auxiliary agent：The mechanism that applicant is contaminated by Study On Rice rice blast cause of disease, abandoning tradition
Poudrage or emulsion（These preparations are most once broadcasting sowing down submerged, it is impossible to well to the disease of floating on water
Bacterium is worked）, and select to float big granula, being capable of directly middle target.Change dispenser period and the dispenser of rice blast preventing and treating
Mode, by early prevention and treatment, reach accuracy pesticide applying, decrement dispenser, saving of work and time, liberating rural labour, reduce rice cropping
Cost, improve the purpose of rice economic benefit；Good preventive effect can particularly be played.
In fact, research floats big granula to applicant always, such as in the first application of applicant in recent years
It is related to preventing and treating rice blast in 201610290446.1 and the composition of banded sclerotial blight floats big granula and preparation method thereof, its
In be related to bactericidal composition using active component thifluzamide and fenoxanil, with auxiliary agent such as polyethers trisiloxanes, naphthalene
Sulfonic acid dipersant, polycarboxylate anion etc. are configured to float big granula, and it is dispersed and cost-effective to which describe its
The effect of aspect, and the prevention effect of corresponding preventing and treating rice blast.But in production practices, it has been found that should
Big granula dispersiveness deficiency is floated, it is embodied in, and through target speed is inadequate, i.e., diffusion velocity is less than 0.75m/min, Jin Er
The water surface is applied to when reaching target（It has been investigated that to be gathered in plant straight for 95% pathogen conidiophore and conidium
At the 10cm of footpath）, its active ingredient loss 12-16%；Applicant is had found specific by selection by largely studying and groping
Surfactant, when particularly it is combined in certain proportion, its dispersiveness greatly reinforces, and diffusion velocity is fast, more than 1.4m/
Min, active ingredient loss are down to less than 5%；
In addition, applicant has been unexpectedly discovered that, when the specific compound oily matter of selection, particularly the two is answered with specific ratio
Timing, the persistence that big granula is adhered at target more preferably, compared to 201610290446.1 in complex composition for, it is held
Long property improves at least 25%.
Traditional formulations of pesticide, such as missible oil, wettable powder, water dispersible granules, water（Oil）Under suspending agent, aqueous emulsion etc. are
Field sprays, not only time-consuming, and agricultural chemicals utilization rate is very low.It is generally necessary to the use of 2-3 times, can be only achieved preventing and treating rice rice
The effect of seasonal febrile diseases.The present invention considers from the pathogenesis of the disease, invented with easy to use, time saving and energy saving, utilization rate and
The big granula of floating for the superiority such as security is good.
In addition, it has been found that the big granula of the floating containing two-spot or ternary active composition of the invention has compared to single dose
Stronger synergistic effect.
Embodiment
In order to deepen the understanding of the present invention, below in conjunction with embodiment, the invention will be further described, these implementations
Example is only used for explaining the present invention, is not intended to limit the scope of the present invention..
First, embodiment is prepared
Prepare embodiment 1：The Fluoxastrobin of the fenoxanil of 12 parts by weight, 12 parts by weight is adsorbed with the white carbon of 8 parts by weight, then
After the phenyl phenol polyethenoxy ether of sulfonate lignin, 9 parts by weight, the KCl of 12 parts by weight with 9 parts by weight are well mixed, warp
Female powder is obtained after airslide disintegrating mill ultramicro grinding.By the mineral oil of female powder and 7.5 parts by weight, the vegetable oil of 7.5 parts by weight, and
Surplus amounts to 100 parts by weight for glass pearl and is well mixed, and is transferred in extruding granulation equipment and is granulated, obtains irregular post
Shape particle, obtained particle is dried, sieved, obtained the fenoxanil Fluoxastrobins that active constituent content is 24% and sterilize
Big granula finished product.
Prepare embodiment 2：Fenoxanil except 22 parts by weight, in addition to the Fluoxastrobin of 2 parts by weight, remaining is the same as preparing embodiment 1.
Prepare embodiment 3：Fenoxanil except 20 parts by weight, in addition to the Fluoxastrobin of 4 parts by weight, remaining is the same as preparing embodiment 1.
Prepare embodiment 4：Fenoxanil except 4 parts by weight, in addition to the Fluoxastrobin of 20 parts by weight, remaining is the same as preparing embodiment 1.
Prepare embodiment 5：Fenoxanil except 8 parts by weight, in addition to the Fluoxastrobin of 16 parts by weight, remaining is the same as preparing embodiment 1.
Prepare embodiment 6：Fenoxanil except 18 parts by weight, in addition to the Fluoxastrobin of 6 parts by weight, remaining is the same as preparing embodiment 1.
Prepare embodiment 7：Except surfactant is the sulfonate lignin of 20 parts by weight, the phenyl phenol polyoxy of 1 parts by weight
Outside vinethene, remaining is the same as preparation embodiment 6.
Prepare embodiment 8：Except surfactant is the sulfonate lignin of 12 parts by weight, the phenyl phenol polyoxy of 6 parts by weight
Outside vinethene, remaining is the same as preparation embodiment 6.
Prepare embodiment 9：Except surfactant is the sulfonate lignin of 1 parts by weight, the phenyl phenol polyoxy of 20 parts by weight
Outside vinethene, remaining is the same as preparation embodiment 6.
Prepare embodiment 10：Mineral oil except 20 parts by weight, in addition to the mineral oil of 1 parts by weight, remaining is the same as preparing embodiment 8；
Prepare embodiment 11：Mineral oil except 10 parts by weight, in addition to the mineral oil of 5 parts by weight, remaining is the same as preparing embodiment 8；
Prepare embodiment 12：Mineral oil except 1 parts by weight, in addition to the mineral oil of 20 parts by weight, remaining is the same as preparing embodiment 8；
Prepare embodiment 13：Except active component is the fenoxanil of 18 parts by weight, in addition to the probenazole of 6 parts by weight, remaining is same
Prepare embodiment 1；
Prepare embodiment 14：Except active component is the fenoxanil of 18 parts by weight, in addition to the SSF 126 of 6 parts by weight, remaining is the same as system
Standby embodiment 1；
Prepare embodiment 15：Except active component is the fenoxanil of 18 parts by weight, in addition to the isotianil of 6 parts by weight, remaining is the same as system
Standby embodiment 1；
Prepare embodiment 16：Except active component is the fenoxanil of 18 parts by weight, in addition to the tiadinil of 6 parts by weight, remaining is the same as system
Standby embodiment 1；
Prepare embodiment 17：Except active component is the fenoxanil of 9.6 parts by weight, the Fluoxastrobin of 2.4 parts by weight, 12 parts by weight
Outside thifluzamide, remaining is the same as preparation embodiment 1；
Prepare embodiment 18：Except active component is the fenoxanil of 9.6 parts by weight, the Fluoxastrobin of 2.4 parts by weight, 12 parts by weight
Outside probenazole, remaining is the same as preparation embodiment 1.
Comparative example 1：In addition to surfactant is sulfonate lignin, remaining is the same as preparation embodiment 11；
Comparative example 2：In addition to surfactant is phenyl phenol polyethenoxy ether, remaining is the same as preparation embodiment 11；
Comparative example 3：In addition to surfactant is alkylamide APEO, remaining is the same as preparation embodiment 11；
Comparative example 4：In addition to surface-active is naphthalenesulfonic acid-formaldehyde condensate, remaining is the same as preparation embodiment 11；
Comparative example 5：Except surface-active is the alkylamide APEOs of 3 parts by weight, the phenyl phenol polyethenoxy ether of 5 parts by weight
Outside, remaining is the same as preparation embodiment 11；
Comparative example 6：In addition to oily matter is the mineral oil of 15 parts by weight, remaining is the same as preparation embodiment 11；
Comparative example 7：In addition to oily matter is the vegetable oil of 15 parts by weight, remaining is the same as preparation embodiment 11.
Comparative example 8：In addition to active component is the fenoxanil of 24 parts by weight, remaining is the same as preparation embodiment 11.
Comparative example 9：In addition to active component is the Fluoxastrobin of 24 parts by weight, remaining is the same as preparation embodiment 11.
Comparative example 10：In addition to active component is the thifluzamide of 24 parts by weight, remaining is the same as preparation embodiment 11.
Comparative example 11：In addition to active component is the probenazole of 24 parts by weight, remaining is the same as preparation embodiment 11.
Comparative example 12：Except the probenazole that active component is 12 parts by weight, outside the Fluoxastrobin of 12 parts by weight, remaining is the same as making
Standby embodiment 11.
Comparative example 13：Except the probenazole that active component is 12 parts by weight, outside the fenoxanil of 12 parts by weight, remaining is same
Prepare embodiment 11.
Comparative example 14：Except the thifluzamide that active component is 12 parts by weight, outside the fenoxanil of 12 parts by weight, remaining is the same as making
Standby embodiment 11.
2nd, the big granula correlated performance embodiment of the present invention
1st, water surface diffusion velocity is tested
（1）Solution and instrument
Running water：Drink level；
Tank：Long 120cm, wide 20cm, high 10cm；Water bath with thermostatic control：(30±2)℃；
Stopwatch.
（2）Water surface diffusion velocity determines
In length × width × height=120cm × 20cm × 10cm tank, running water, water layer height >=2cm are put into；Claim 20mg samples
Product are placed on the water-surface areas on tank top, it is voluntarily spread, while are just spread in the water surface with manual time-keeping, determination sample
Required time during to 1m, parallel determination three times, are averaged.Sample is determined in water surface diffusion velocity v（m/min）；
（3）Determine active ingredient loss rate
Due to playing prevention after floating big granula only arrival target or preventing and treating rice blast, its long-time can not reach target
Or the target part that nearby or after applying sinks under water at once is considered as the part that do not work, this experiment test apply after 5 minutes, 10
Minute reaches 8 centimetres of plant diameter scope, more than water layer 2cm active material accounts for former active material total amount percentage.
Measurement result such as table 1 below：
Interpretation of result：As can be seen from Table 1, embodiments of the invention 1-18 relative to comparative example 1-5 in water surface diffusion velocity
And quick-acting is more excellent, particularly the present invention uses compound surfactant for the single dose of comparative example 1 and 2,
Effect is more excellent, and for the comparative example 2-5 using other kinds of surfactant and combinations thereof, effect is also more excellent.
In addition, with regard to the application itself, when selecting specific Surfactant Ratio, such as the two in preparation example 8
For 2:When 1, its effect is better compared to embodiment 7,9, and when mineral oil and vegetable oil are special ratios, i.e. embodiment
11 effect is compared to embodiment 10,12 more preferably.
2nd, big granula endurance life test is floated
It is to play bactericidal action on the water surface and on certain water layer due to floating big granula, when through after a period of time, it is
Sink under water, then show that its flotation property is bad, corresponding persistence is poor.This experiment test apply after 1 hour and 5 hours,
8 centimetres of plant diameter scope, more than water layer 2cm active component account for former active material total amount percentage.
Measurement result such as table 2 below：
| Embodiment | After 1 hour（%） | After 5 hours（%） |
| 8 | 92.8 | 92.8 |
| 10 | 92.6 | 92.4 |
| 11 | 93.4 | 93.1 |
| 12 | 92.4 | 91.8 |
| Comparative example 6 | 70.3 | 67.4 |
| Comparative example 7 | 69.3 | 66.8 |
Interpretation of result：When it is single dose to float the oily matter in big granula, it is worse in terms of persistence compared to composite finisher,
In addition, when it is special ratios, its effect is also optimal with regard to composite finisher in itself.
3rd, biological activity test
（1）Synergistic activity is tested
Fenoxanil and Fluoxastrobin are compounded：Two kinds of active compounds are configured to 15 by active ingredient:1、1:1、3:1、1:5 totally 4
Individual proportioning（Mass ratio）.Above-mentioned formula carries out toxicity test by Study on Fungicide Toxicity method respectively, determines the sterilization group of the present invention
The effect of Researches On Hydrate Prevention rice blast.Mixture synergy is evaluated, with EC50Based on value, it is total to by calculating mixture
Malicious factor evaluation mixture synergy type.
CTC120 is synergistic effect, 80≤CTC<120 be summation action, CTC<80 be antagonism；
| Chemicals treatment | Virulence regression equation | Coefficient correlation（r） | EC50（mg/L） | Co-toxicity coefficient（CTC） |
| Fenoxanil | Y=4.3128+1.4767X | 0.9946 | 2.9198 | - |
| Fluoxastrobin | Y=3.1241+1.4160X | 0.9992 | 21.1244 | - |
| 15:1 | Y=3.7745+1.4430X | 0.9930 | 7.0684 | 133.00 |
| 1:1 | Y=3.9381+1.3901X | 0.9931 | 5.8067 | 142.18 |
| 3:1 | Y=4.5261+1.0886X | 0.9909 | 2.7250 | 150.33 |
| 1:5 | Y=4.0248+1.4622X | 0.9954 | 4.6443 | 147.76 |
As seen from the above table, all proportions of fenoxanil and azoxystrobin compound show certain synergistic effect, but different multiple
With ratio coefficient of synergism difference.Wherein, the two compound proportion is 3：Co-toxicity coefficient highest, it is 150.33 when 1.
Further, applicant also measured were the bioactivity of the triple combination preventing and treating rice blast of the application, by rice
Pest acid amides, Fluoxastrobin and probenazole（Or thifluzamide）Compounded：Wherein by the mixture group of fenoxanil and Fluoxastrobin
Compound（Call A in the following text, the wherein weight ratio of fenoxanil and Fluoxastrobin is 3:1）Amount ratio with third component is 1:1 two kinds of active compounds
Triple combination is configured to by active ingredient, formula carries out toxicity test by Study on Fungicide Toxicity method respectively.Test result shows,
A:Probenazole=1:1 co-toxicity coefficient is 165, and A:Thifluzamide=1:1 co-toxicity coefficient is more up to 170.
（2）Field medicine effect test
Test method：The selection of dispenser period is in rice jointing stage or boot stage, the rice field of 5 pieces 1 mu of selection, every mu of rice field dispenser
100g, manually the water-soluble bag equipped with powder is directly thrown along ridge and applies the water surface, 1-18 of the embodiment of the present invention and comparative example 1-16,
And the big granula of floating of the embodiment 2 in 201610290446.1（Active ingredient is the combination of fenoxanil and fenoxanil
Thing）Dispenser drug effect is as shown in table 4.
As above prevention effect of the different disposal to rice blast of table 4
| Treatment agent | 8 days preventive effects after dispenser（%） | 15 days preventive effects after dispenser |
| 1 | 97.6 | 97.8 |
| 2 | 97.8 | 98.0 |
| 3 | 97.6 | 97.8 |
| 4 | 97.4 | 98.2 |
| 5 | 97.6 | 97.9 |
| 6 | 98.2 | 98.4 |
| 7 | 98.3 | 98.4 |
| 8 | 98.5 | 98.6 |
| 9 | 98.2 | 98.5 |
| 10 | 98.5 | 98.7 |
| 11 | 98.8 | 99.0 |
| 12 | 98.6 | 98.9 |
| 13 | 98.4 | 98.5 |
| 14 | 98.3 | 98.4 |
| 15 | 98.4 | 98.6 |
| 16 | 98.5 | 98.6 |
| 17 | 99.0 | 99.2 |
| 18 | 99.0 | 99.3 |
| Comparative example 1 | 93.5 | 93.8 |
| Comparative example 2 | 93.2 | 93.6 |
| Comparative example 3 | 93.5 | 93.7 |
| Comparative example 4 | 93.4 | 93.6 |
| Comparative example 5 | 93.4 | 93.7 |
| Comparative example 6 | 92.8 | 92.9 |
| Comparative example 7 | 92.5 | 92.8 |
| Comparative example 8 | 90.1 | 90.3 |
| Comparative example 9 | 90.3 | 90.4 |
| Comparative example 10 | 94.5 | 94.8 |
| Comparative example 11 | 92.8 | 93.0 |
| Comparative example 12 | 92.6 | 92.8 |
| Comparative example 13 | 93.8 | 94.5 |
| Comparative example 14 | 93.5 | 93.9 |
| 201610290446.1 embodiment 2 | 95.2 | 95.34 |
Interpretation of result：As can be seen from the above table, the big granula of the application has in terms of rice blast is prevented and treated compared to comparative example
More excellent effect；In addition just in the big granule formulations of the present invention, wherein when the proportioning of active component is 5:When 1, its relative to
Other proportioning effects are optimal, referring to the data of embodiment 6；Further when the ratio of the two in complexed surfactant is 2:1 is,
The relatively other ratios of its prevention effect are optimal, referring to the data of embodiment 8；Further, when the two in compound oily matter
Ratio is 2:When 1, the relatively other ratios of its prevention effect are optimal, referring to the data of embodiment 11；Further, active component is worked as
For specific ternary composition of the invention when, its prevention effect is more excellent with respect to binary combination, referring to embodiment 17-18 data.
The bactericidal composition and its application process of a kind of preventing and treating rice blast of the present invention pass through specific example
It is described, those skilled in the art can use for reference the link such as present invention, appropriate feed change, process conditions to realize phase
The other purposes answered, its correlation change all without departing from present disclosure, and all similar replacements and change are for this area
It is it will be apparent that being considered as being included within the scope of the present invention for technical staff.
Claims (10)
1. a kind of bactericidal composition for preventing and treating rice blast, it is characterised in that each component of the bactericidal composition is according to such as
Lower parts by weight：
Bactericide：12-30；
Surfactant：3-28；
Oily matter：2-30；
White carbon：1-10；
Solid core core material：10-80
KCl：1-30；
The bactericide is that weight ratio is 15:1-1:5 fenoxanil and the mixture composition of Fluoxastrobin；
The surfactant is that weight ratio is 1:20-30:1 sulfonate lignin and the composite table of APES
Face activating agent；
The oily matter is that weight ratio is 1:10-20:1 mineral oil and the compound oily matter of vegetable oil.
2. bactericidal composition according to claim 1, it is characterised in that the dosage of bactericide is 24 parts by weight.
3. bactericidal composition according to claim 1, it is characterised in that bactericide is that weight ratio is 3:1 fenoxanil
With the mixture composition of Fluoxastrobin.
4. bactericidal composition according to claim 1, it is characterised in that the dosage of surfactant is 15-18 parts by weight,
The weight of sulfonate lignin and APES ratio is 2:1.
5. bactericidal composition according to claim 1, it is characterised in that the dosage of compound oily matter is 14-16 weight
Part, the weight ratio of mineral oil and vegetable oil is 2:1.
6. bactericidal composition according to claim 1, it is characterised in that the bactericide is 15:1-1:5 fenoxanil
With selected from probenazole, SSF 126, isotianil, tiadinil, thifluzamide, Boscalid, folpet, iprodione
The mixture composition of second component.
7. bactericidal composition according to claim 1, it is characterised in that the bactericide is in fenoxanil and Fluoxastrobin
Mixture composition on the basis of, add selected from probenazole, SSF 126, isotianil, thifluzamide or thiophene acyl bacterium
The third component of amine, wherein mixture composition and the amount ratio of third component are 1:1.
8. bactericidal composition according to claim 7, it is characterised in that third component is probenazole or thiophene furan acyl
Amine.
9. the method for bactericidal composition preventing and treating rice blast according to any one of claims 1 to 8, it is characterised in that
Disease sheds bactericidal composition before occurring, and realizes preventive effect, while strengthen the resistance and immunity of plant.
10. the method for bactericidal composition preventing and treating rice blast according to any one of claims 1 to 8, it is characterised in that
Rice transfer Tanaka, thrown after rice transplanting and apply bactericidal composition；Or in direct sowing of rice Tanaka, thrown when rice length to two one heart stage of leaf
Apply above-mentioned bactericidal composition；Dosage is 10-30g/ mus.
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| CN107711829A (en) * | 2017-03-01 | 2018-02-23 | 南京高正农用化工有限公司 | A kind of bactericidal composition and its application process for preventing and treating rice sheath blight disease |
| CN109907057A (en) * | 2019-04-16 | 2019-06-21 | 湖南速博生物技术有限公司 | A kind of dressing agent for rice |
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| CN105961379A (en) * | 2016-05-04 | 2016-09-28 | 南京高正农用化工有限公司 | Large composition floating granule for preventing and controlling sheath blight and rice blast of rice, and preparation method thereof |
| CN106070224A (en) * | 2016-06-23 | 2016-11-09 | 江苏省绿盾植保农药实验有限公司 | A kind of containing fenoxanil and the bactericidal composition of azoxystrobin compound and application |
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| CN103688971A (en) * | 2013-12-20 | 2014-04-02 | 南京高正农用化工有限公司 | Weeding macro granule for paddy field and preparation method thereof |
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| CN109907057A (en) * | 2019-04-16 | 2019-06-21 | 湖南速博生物技术有限公司 | A kind of dressing agent for rice |
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