CN107593738A - A kind of composition pesticide containing captan and metrafenone - Google Patents
A kind of composition pesticide containing captan and metrafenone Download PDFInfo
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- CN107593738A CN107593738A CN201710962995.3A CN201710962995A CN107593738A CN 107593738 A CN107593738 A CN 107593738A CN 201710962995 A CN201710962995 A CN 201710962995A CN 107593738 A CN107593738 A CN 107593738A
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- China
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- composition pesticide
- metrafenone
- captan
- powdery mildew
- suspending agent
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Abstract
The invention discloses a kind of composition pesticide containing captan and metrafenone, and its for preventing and treating the purposes of corps diseases especially powdery mildew；The weight of captan and metrafenone ratio is 30 in the composition pesticide:1‑1:1, preferably 10:1‑5：1, most preferably 7:2；The composition pesticide of the present invention can be prepared into conventional pesticidal preparations, such as missible oil, wettable powder, water dispersible granules, suspending agent, aqueous emulsion, microemulsion, granule, dispersible oil-suspending agent.The composition pesticide prevention effect of the present invention is good, and cost is low, can delay the drug-fast generation of pathogen, and security is good, is worthy of popularization.
Description
Technical field
The invention belongs to agriculture plant protection field, more particularly to be a kind of composition pesticide for having and improving performance,
The composition pesticide active component comprises at least captan and metrafenone, and the composition pesticide is used to prevent and treat crops
The application of disease, especially crop powdery mildew.
Background technology
Powdery mildew is plant disease, mostly ectoparasitism as caused by the Erysiphaceae (Erysiphacesae) in fungi,
Mycelium is produced largely by bacterium wholly or largely exposed to the surface of the leaf of host plant, stem, tender tip, bud, flower and fruit
The macroscopic white powder thing that filament, conidiophore and conidium are formed；Powdery mildew is widely distributed in the whole world, is
Evil dicotyledon is especially prevalent, and cucurbits powdery mildew is the important disease in melon production, and it is small to produce yellow for blade when just occurring
Point, then expand develop into circular or oval scab, there is the mould layer of white powder on surface, be germ conidiophore and divide
Raw spore, rear scab become the cleistothecium that yellowish-brown is germ, and mildew early stage individually disperses, after be unified into a big mildew, even
Full leaf can be covered, has a strong impact on photosynthesis, eubolism is received interference, causes early ageing, yield receives serious damage
Lose.In the preventing and treating of powdery mildew, rely primarily on the bactericide such as benzimidazole, triazole type, these medicaments because it is long-term use of
The different degrees of resistance to the action of a drug is generated, prevention effect reduction, especially triazole bactericidal agent are when dosage is big to crop
Growth has inhibitory action, easily triggers poisoning.
Metrafenone is a kind of broad spectrum activity systemic fungicide, is had well to multiple diseases caused by basidiomycetes and sac fungus
Protection and therapeutic action, can effectively prevent and treat wheat crops powdery mildew, rust, smut etc., and its mechanism of action mainly suppresses
The biosynthesis of ergosterol, can cause fungal cell wall rupture and the growth of mycelia, and metrafenone is with rooting out, protect, touch
The bactericide with systemic activity is killed, there is good protection and therapeutic action to many diseases caused by basidiomycetes and sac fungus,
And have certain fumigation action concurrently, inactive to oomycetes and bacterium, the medicament has preferable systemic action, by the root of plant,
Stem, leaf absorb, then are shifted upwards by vascular bundle, and the interior energy-absorbing power of root is more than stem, leaf, but can not bast make laterally or to
Base transporting.Therefore no matter metrafenone is in the inner or in vitro growth that can suppress fungi of plant.
Captan, also known as Cape Town, it is the protective fungicide of trichloro-methylthio class wide spectrum, has certain treatment concurrently and make
With captan is a kind of lower toxicity broad spectrum protection bactericidal pesticide, can prevent and treat a variety of diseases of the crops such as apple, pears, strawberry, grape
Evil, have the function that prevention effect is good, poisoning is small, appropriate using also with stimulation plant growth.Its main function mechanism is resistance
Disconnected disease fungus respiratory, the content of atriphos in pathogen can also be reduced so as to prevent germ is conidial from dissipating
Put.It is mainly used in spraying, can also makees seed treatment, infusion product after harvest, soil treatment is carried out before sowing or before plant.For
The ring spot of preventing and treating fruit tree, vegetables, flowers and other industrial crops etc., scab, downy mildew, powdery mildew, anthracnose, grey mold
Disease, early blight, late blight etc..The activity of the compound is good, and still, it is sometimes and unsatisfactory in low rate of application.Its
There is preferable prevention effect to a variety of fungal diseases, but when preventing and treating bacterium and fungal disease simultaneously, its deficiency that seems.And
Captan applicating history is long, and some pathogens have produced certain resistance to the action of a drug to captan.Therefore, other efficient sterilizings are selected
It is to resist resistance, delaying drug resistance development that agent compounds therewith, extends an important channel of its service life.
In practical application, for reduce the pathogen resistance to the action of a drug, expand preventing and treating spectrum the purpose of, often by different pesticide activities into
Point compound to prevent and treat harmful fungoid, after different pesticide activity components compound, can show to cooperate with, be added, antagonism etc. no
Same effect, the composition pesticide with synergistic function are often less, it is necessary to constantly be tested to selection with collaboration
The composition pesticide of synergistic effect；Present inventor, which is found surprisingly that, can play association after folpet and metrafenone compounding
Same synergistic effect, completes the present invention after further research
The content of the invention
It is an object of the invention to provide the agricultural chemicals that a kind of synergistic effect is obvious, cost is low, preventing and treating spectrum is wide, resistance risk is low
Composition.
Another object of the present invention is to provide the application of the composition pesticide, the composition pesticide is particularly suitable for use in
Prevent and treat powdery mildew.
In order to achieve the above object, the present invention adopts the following technical scheme that：
A kind of composition pesticide, its active component include captan and metrafenone, wherein, the weight of captan and metrafenone
Amount is than being 30:1-1:1, preferably 10:1-5：1, most preferably 7:2.
Further, the weight percentage that active component accounts for composition in the composition pesticide is 10-80%, preferably
For 20-50%.
Further, composition pesticide of the invention can be prepared into by the conventional preparation technology in this area is adapted to agricultural
Any one formulation used in production, including but not limited to missible oil, wettable powder, water dispersible granules, suspending agent, water and milk
Any of agent, microemulsion, granule, dispersible oil-suspending agent.
Further, composition pesticide of the invention can also include other active materials, for example, insecticide, attractant,
One or more in herbicide, synergist, safener, fertilizer, biostimulant, plant growth regulator, semiochemical
More than, or can be used in conjunction with the bactericidal composition of the present invention.
Further, the application dosage of composition pesticide of the invention preventing and treating corps diseases is for example anti-with various factors
Control target, plant growth stage, disease occurrence degree, weather, environmental condition, type of preparation, application process and time of application etc.
And change.
Further, composition pesticide of the invention can be provided in the form of finished product preparation, i.e., each material in composition
Be adequately mixed and be prepared into the dosage form for being adapted to use, can also be used alone with unit dose preparation, using it is preceding in bucket or
Voluntarily mixed in tank, and optionally mixed and be diluted with water according to the concentration of required active material.
Compared with prior art, composition pesticide of the invention has the beneficial effect that：
(1) composition pesticide active component captan and metrafenone of the invention are respectively protectiveness and absorbability sterilization
Agent, action site increase, can overcome and/or delay the drug-fast generation of pathogen after both compound；
(2) preventing and treating in composition pesticide of the invention after active component compounding in certain scope to corps diseases
Show obvious synergistic function, it is possible to reduce pesticide activity component usage amount, improve prevention effect；
(3) composition pesticide wide sterilization spectrum of the invention, dosage are low, safe, to Environmental compatibility height.
Embodiment
The present invention is further qualified below in conjunction with specific embodiment, it is noted that the present invention feel be not limited to
Lower specific embodiment, all equivalents done on the basis of technical scheme each fall within protection scope of the present invention.
First, it is raw to survey embodiment
1st, subjects：Cucumber powdery mildew's pathogen (Sphaerotheca fuliginea)
2nd, test method：The test medicine that active compound is configured to need, test method reference《People's Republic of China's agricultural
The part of professional standard NY/T1156.11-2008 farm-chemical indoor determination test rules bactericide the 11st：Prevent and treat cucurbits powdery mildew
Test pot-culture method》.Single dose and each Mixed Pharmacy are set into 5 various concentrations gradients first, and (preventive effect is pressed in the range of 5-90%
Geometric progression is set).With the pure water added with a small amount of surfactant (Tween 80), wash to take and cover with Powdery Mildew cucumber leaves
Fresh spores, filtered with double gauze, spore concentration be made as 1 × 105The suspension of individual spore/milliliter, it is standby.Often handle
3 basins, 4 repetitions, and set the processing for not containing effect composition containing only solvent and surfactant and make blank control.Use spore suspension
Liquid 24h before chemicals treatment is inoculated with, and decoction is uniformly sprayed in blade face to whole wettings, standby after decoction natural air drying.Connect
Kind and chemicals treatment after potted plant cucumber natural air drying, then move to thermostatic chamber, 7-10 cultivated under conditions of 20-24 DEG C of temperature
My god, when blank control disease leaf rate reaches more than 80%, incidence is managed in classification investigation everywhere, is often handled and is at least investigated 30 leaves
Piece, grade scale are：
0 grade：It is disease-free；
1 grade：Lesion area accounts for less than the 5% of full wafer leaf area；
3 grades：Lesion area accounts for the 6-15% of full wafer leaf area；
5 grades：Lesion area accounts for the 16-25% of full wafer leaf area；
7 grades：Lesion area accounts for the 26-50% of full wafer leaf area；
9 grades：Lesion area accounts for the 51-75% of full wafer leaf area；
11 grades：Lesion area accounts for more than the 75% of full wafer leaf area.
Computational methods：
Disease index=[∑ (the sick numbers of sheets at different levels × relative value of series)/(investigation total leaf number × 11)] × 100；
Prevention effect (%)=[(control disease index-processing disease index)/control disease index] × 100.
By the linear regression analysis between the niqueMin of preventive effect and the logarithm value of series concentration, the EC of each medicament is obtained50
Value, the co-toxicity coefficient (CTC) of mixture is calculated with the abundant methods of Sun Yun, activity of the reagent agent to germ is evaluated with this.
The co-toxicity coefficient (CTC) >=120 of complex preparation shows as synergistic effect, and CTC≤80 show as antagonism, 80 ＜
CTC ＜ 120 show as summation action.
The captan of table 1 and metrafenone compound the Toxicity Determination to powdery mildew of cucumber
As shown in Table 1, captan and metrafenone are 30:1-1:When in the range of 1, mixture co-toxicity coefficient more than 120,
Show good synergistic function.
2nd, example of formulations
1st, embodiment 1：32% captan metrafenone water dispersible granules (15:1)
The preparation method of the water dispersible granules is：The pesticide activity component, auxiliary agent and filler are mixed in proportion
It is even, through air-flow crushing, appropriate water is then added, water of the present invention is can be prepared by after mediating, be granulated, dry, sieve
Dispersible granule.
2nd, embodiment 2:44% captan metrafenone wettable powder (10:1)
The preparation method of the wettable powder is：Pesticide activity component, auxiliary agent and filler are proportionally mixed by formula
After closing uniformly, remixed after airslide disintegrating mill crushes and uniformly can be prepared by wettable powder of the present invention.
3rd, embodiment 3:36.6% captan metrafenone suspending agent (5：1)
The preparation method of the suspending agent is：By formula by pesticide activity component, dispersant, wetting agent, thickener, defoaming
Agent, preservative and water are mixed in proportion, and semi-finished product are made after high speed shear, and deionized water is added after analysis and is mixed,
Even filtering, you can suspending agent of the present invention is made.
4th, embodiment 4:54.9% captan metrafenone wettable powder (7:2)
The preparation method of the wettable powder is：Pesticide activity component, auxiliary agent and filler are proportionally mixed by formula
After closing uniformly, remixed after airslide disintegrating mill crushes and uniformly can be prepared by wettable powder of the present invention.
3rd, field control effectiveness test
1st, controlling object：Powdery mildew of cucumber；
2nd, test method：Test site is arranged in Shouguang City of Shandong Province somewhere green house of vegetables, screens full cucumber kind
Son, during vernalization is broadcast to the paper that a diameter of 10cm is seeded in when showing money or valuables one carries unintentionally, cultivate into transplanting rice greenhouse during 2 needles, normal cultivation
Management, when cucumber is grown to 10 needles by embodiment 1-4 and contrast single dose (comparative example 1:50% captan wettable powder；
Comparative example 2:42% metrafenone suspending agent) preparation be watered and be uniformly sprayed at afterwards on the positive and negative of cucumber leaves；Chemical agent and
Blank control clear water processing method is identical with the former.20 cucumber are often handled, are repeated 4 times, random alignment.After sprinkling 1 day, spraying
Powdery mildew of cucumber germ is inoculated with, greenhouse temperature is controlled after inoculation between 20-24 DEG C, humidity 80-90%；Treat clear water blank control
Incidence is investigated when fully falling ill and after falling ill 7 days, and calculates disease index and preventive effect.Result of the test is as shown in table 2.
The processing of the different agents of table 2 determines to the toxicity of powdery mildew of cucumber
Field test results are as shown in table 2, and as can be seen from Table 2, embodiment 1-4 composition pesticide is to powdery mildew of cucumber
Preventing and treating show preferable effect, when effective ingredient consumption is in 800g/ hectares, to the prevention effect of powdery mildew 75%
More than, it is considerably better than the prevention effect for compareing the captan wettable powder of single dose 50% and 42% metrafenone suspending agent.In addition,
In scope of medication, not finding the composition pesticide of the present invention has poisoning generation to cucumber crop, shows the pesticide combination of the present invention
Thing security is also preferable.
Claims (8)
1. a kind of composition pesticide, it is characterised in that active component captan and metrafenone.
2. composition pesticide according to claim 1, it is characterised in that the weight ratio of the captan and metrafenone is
30:1-1：1.
3. composition pesticide according to claim 2, it is characterised in that the weight ratio of the captan and metrafenone is preferred
For 10:1-5：1.
4. composition pesticide according to claim 4, it is characterised in that the weight ratio most preferably 7:2.
5. according to the composition pesticide described in any one of claim 1-4 claim, it is characterised in that the pesticide combination
Thing can be prepared into any one formulation used in suitable agricultural production.
6. composition pesticide according to claim 5, it is characterised in that the composition pesticide is missible oil, wettable powder
It is any in agent, water dispersible granules, suspending agent, aqueous emulsion, microemulsion, granule, dispersible oil-suspending agent.
7. the composition pesticide according to any one of claim 1-6 claim is used for the use for preventing and treating corps diseases
On the way.
8. purposes according to claim 7, it is characterised in that the corps diseases are preferably powdery mildew.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710962995.3A CN107593738A (en) | 2017-10-16 | 2017-10-16 | A kind of composition pesticide containing captan and metrafenone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710962995.3A CN107593738A (en) | 2017-10-16 | 2017-10-16 | A kind of composition pesticide containing captan and metrafenone |
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| Publication Number | Publication Date |
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| CN107593738A true CN107593738A (en) | 2018-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710962995.3A Pending CN107593738A (en) | 2017-10-16 | 2017-10-16 | A kind of composition pesticide containing captan and metrafenone |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108124895A (en) * | 2018-03-14 | 2018-06-08 | 广东广康生化科技股份有限公司 | A kind of bactericidal composition containing Pyriofenone and captan |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103392715A (en) * | 2013-07-30 | 2013-11-20 | 江苏龙灯化学有限公司 | Sterilization composition containing cyprodinil and captan |
-
2017
- 2017-10-16 CN CN201710962995.3A patent/CN107593738A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103392715A (en) * | 2013-07-30 | 2013-11-20 | 江苏龙灯化学有限公司 | Sterilization composition containing cyprodinil and captan |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108124895A (en) * | 2018-03-14 | 2018-06-08 | 广东广康生化科技股份有限公司 | A kind of bactericidal composition containing Pyriofenone and captan |
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