CN107668080A - A kind of bactericidal composition for preventing and treating powdery mildew of cucumber - Google Patents
A kind of bactericidal composition for preventing and treating powdery mildew of cucumber Download PDFInfo
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- CN107668080A CN107668080A CN201711158731.9A CN201711158731A CN107668080A CN 107668080 A CN107668080 A CN 107668080A CN 201711158731 A CN201711158731 A CN 201711158731A CN 107668080 A CN107668080 A CN 107668080A
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- Prior art keywords
- tebuconazole
- bactericidal composition
- dill seed
- cucumber
- powdery mildew
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
-
- 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
- A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
- A01N43/647—Triazoles; Hydrogenated triazoles
- A01N43/653—1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles
-
- 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
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
- A01N65/08—Magnoliopsida [dicotyledons]
- A01N65/10—Apiaceae or Umbelliferae [Carrot family], e.g. parsley, caraway, dill, lovage, fennel or snakebed
Abstract
The present invention relates to a kind of bactericidal composition for preventing and treating powdery mildew of cucumber, active ingredient is made up of dill seed and Tebuconazole, and the weight ratio of dill seed and Tebuconazole is 10 1:1‑10.The bactericidal composition that the present invention carries out rational mixture with dill seed and Tebuconazole is used to prevent and treat powdery mildew of cucumber, has synergistic function obvious, the lasting period is grown, reduce chemical pesticide usage amount, low-residual, the pathogen resistance to the action of a drug can be delayed to produce, the features such as to crop, Environmental security close friend.
Description
Technical field
The present invention relates to pesticides application technical field, and in particular to a kind of bactericidal composition for preventing and treating powdery mildew of cucumber.
Background technology
Tebuconazole (Tebuconazole) belongs to triazole bactericidal agent, is sterol demethylation inhibitor.Tebuconazole is a kind of high
Effect, wide spectrum, absorbability triazole bactericidal agent, have and protect, treat, rooting out three zones, wide sterilization spectrum, lasting period length.The product
For preventing and treating sclerotinia sclerotiorum, not only preventive effect is good, and with the features such as resistant to lodging, production-increasing function is obvious.It is to be used for important warp
The seed treatment of crop of helping or the efficient germicide of face sprinkling, can effectively prevent and treat a variety of rust of cereal crop, powdery mildew,
Net blotch, root rot, head blight etc..
Dillseed, Chinese medicine name, the fruit for being samphire dill Anethum graveolens L., it is distributed in China
The ground such as northeast, Gansu, Sichuan, Guangdong, Guangxi, originate in south of europe.Dillseed acrid flavour, it is warm-natured, there is the appetizing of warm spleen, cold dispelling is warmed up
Liver, regulating qi-flowing for relieving pain and other effects, for crymodynia in abdomen, side of body rib turgor, hiccup deficiency of food, cold hernia etc..Modern pharmacology research shows to transplant
Trailing plants volatile oil has antibacterial, expelling parasite, anti-oxidant, lactagogue, the regulation pharmacological activity such as female reproductive cycle and reducing blood lipid.
The difficulty of prevention and cure of phytopathogen is increasing at present, on the one hand, with the change of pattern of farming, melon fruits and vegetables etc.
Industrial crops cultivated area progressively expands, and disease occurrence degree, generation quantity increase, and difficulty increases in preventing and treating；Separately
On the one hand, the resistance of pathogen rises year by year under lasting medicament selection pressure, and the prevention effect of single dose is more and more weaker, plant
Disease control faces significant challenge.It is white to be applied to crop for the composition using dill seed and Tebuconazole as active ingredient at present
There has been no relevant report for the research of powder disease.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of bactericidal composition for preventing and treating powdery mildew of cucumber, there is collaboration to increase
Effect effect is obvious, lasting period length, reduces chemical pesticide usage amount, the features such as low-residual.
The present invention is to solve the technical scheme that above-mentioned technical problem provides to be：A kind of Bactericidal composite for preventing and treating powdery mildew of cucumber
Thing, active ingredient are made up of dill seed and Tebuconazole, and the weight ratio of dill seed and Tebuconazole is 10-1:1-
10。
Preferably, the weight ratio of described bactericidal composition, dill seed and Tebuconazole is 1:5.
Described dill seed preparation method：From the fresh seeds 1kg of spring dill, selected removing impurity, use
Water cleans 2 times, and natural air drying 24 hours pulverizes and sieves 60 mesh；Utilize the supercritical carbon dioxide extracting of routine, extraction kettle volume
5 liters, extracting pressure 15mPa, 26 DEG C, extraction time 2h, separation reactor I pressure 6mPa of extraction temperature, 30 DEG C of temperature, separation reactor I I pressures
Power 6mpa, 34 DEG C of temperature, CO2 flow 20Kg/h, recovery have the pale yellow transparent oily solution of special odor, are collected per half an hour
Single extraction thing, 45 grams of extract quality, yield 4.5% are collected altogether.
The active ingredient of described bactericidal composition accounts for the 1-70% of bactericidal composition gross weight, and surplus is that can be connect on agricultural chemicals
The auxiliary element received.
Described bactericidal composition is added made of corresponding auxiliary element according to method known in those skilled in the art
Formulation is wettable powder, water dispersible granules or suspending agent.
The acceptable auxiliary element of bactericidal composition of the present invention be dispersant, wetting agent, antifreezing agent, thickener,
The conventional functionality auxiliary agent such as stabilizer, binding agent, disintegrant, defoamer, solvent, filler, commonly used in field of pesticide preparation
Or allow the various composition used, it is not particularly limited, specific composition and dosage are determined according to recipe requirements by simple experiment.
Beneficial effect of the present invention：The bactericidal composition that the present invention carries out rational mixture with dill seed and Tebuconazole is used
In preventing and treating powdery mildew of cucumber, have synergistic function obvious, the lasting period is grown, and reduces chemical pesticide usage amount, low-residual can
The pathogen resistance to the action of a drug is delayed to produce, the features such as to crop, Environmental security close friend.
Embodiment
Technical scheme and technique effect are described further below in conjunction with specific embodiment, institute of the present invention
The percentage stated is weight percentage.
First, the preparation of dill seed
From the fresh seeds 1kg of spring dill, selected removing impurity, cleaned 2 times with water, natural air drying 24 hours, powder
60 mesh of broken sieving；Utilize the supercritical carbon dioxide extracting of routine, 5 liters, extracting pressure 15mPa of extraction kettle volume, extraction temperature
26 DEG C, extraction time 2h, separation reactor I pressure 6mPa, 30 DEG C of temperature, separation reactor I I pressure 6mpa, 34 DEG C of temperature, CO2 flows
20Kg/h, recovery have the pale yellow transparent oily solution of special odor, and single extraction thing is collected per half an hour, collects extract altogether
45 grams of quality, yield 4.5%.
2nd, Toxicity Determination
After prerun determines the effective inhibition concentration scope of each medicament, each medicament is set 5 agent by active constituent content respectively
Gradient processing is measured, if clear water is blank control.Reference《Farm-chemical indoor determination test rule bactericide》Carry out, using mycelia
Growth rate method determines virulence of the medicament to cucumber powdery mildew's pathogen.Measured after 72h using crossing method and record each processing
Colony diameter, calculate each processing net growth, mycelial growth inhibition rate.
Mycelial growth inhibition rate is converted into probit value (y), liquor strength (μ g/mL) is converted into logarithm value (x), with minimum
Square law tries to achieve virulence regression equation (y=a+bx), and thus calculates the EC of every kind of medicament50Value.Simultaneously according to the abundant methods of Sun Yun
Co-toxicity coefficient method (CTC) evaluate the synergistic effect of pharmacy mix, i.e. CTC≤80, composition shows as antagonism, when 80
<CTC<120, composition shows as summation action, and when CTC >=120, composition shows as synergistic effect.Result of the test such as table 1.
The toxicity test analysis of results table of the dill seed of table 1, Tebuconazole and its compounding to powdery mildew of cucumber
| Reagent agent | Proportioning | Regression equation (y=a+bx) | Coefficient correlation | EC50(μg/mL) | Co-toxicity coefficient |
| Dill seed (A) | / | Y=1.4224+1.4508x | 0.9887 | 292.41 | / |
| Tebuconazole (B) | / | Y=4.2058+1.9669x | 0.9920 | 2.53 | / |
| A：B | 12:1 | Y=2.1156+1.7751x | 0.9864 | 42.16 | 70.8 |
| A：B | 10:1 | Y=2.7297+1.7471x | 0.9876 | 19.93 | 128.7 |
| A：B | 8:1 | Y=2.7211+1.9844x | 0.9934 | 14.07 | 151.6 |
| A：B | 5:1 | Y=3.3286+1.8538x | 0.9924 | 7.97 | 182.8 |
| A：B | 1:1 | Y=3.9828+2.1067x | 0.9941 | 3.04 | 165.3 |
| A：B | 1:5 | Y=4.7342+1.6816x | 0.9640 | 1.44 | 210.8 |
| A：B | 1:8 | Y=4.6680+1.5664x | 0.9709 | 1.63 | 174.7 |
| A：B | 1:10 | Y=4.3695+1.9628x | 0.9783 | 2.10 | 132.6 |
| A：B | 1:12 | Y=4.0848+2.2242x | 0.9831 | 2.58 | 106.3 |
| A：B | 1:15 | Y=3.8599+2.2932x | 0.9875 | 3.14 | 86.0 |
As shown in Table 1, the weight of dill seed and Tebuconazole ratio is in 10-1:Mixture is to cucumber white powder in the range of 1-10
Germ shows obvious synergistic effect.Wherein, when dill seed and tebuconazole weight ratio are 1:Its co-toxicity coefficient when 5
Maximum, it is 210.8；And when the weight ratio of dill seed and Tebuconazole is 12:When 1, composition shows as antagonism；When
The weight of dill seed and Tebuconazole ratio is 1:12、1:When 15, composition shows as summation action.
3rd, the implementation of Formulation Example
Embodiment 1：30% dill seed tebuconazole suspension concentrates (1:5)
Dill seed (active ingredient) 5%, Tebuconazole (active ingredient) 25%, aliphatic alcohol polyoxyvinethene phosphate
(dispersant) 5.5%, calcium dodecyl benzene sulfonate (wetting agent) 5%, xanthans (thickener) 2%, ethylene glycol (antifreezing agent)
2%th, C8-10 aliphatic alcohols compound (defoamer) 0.3%, deionized water (solvent) complement to 100%；First other auxiliary agents are mixed
Close, shear-mixed is uniform in cutter, then adds dill seed and Tebuconazole, 2h is ground in ball crusher, you can
30% dill seed tebuconazole suspension concentrates are made.
Embodiment 2：44% dill seed Tebuconazole wettable powder (10:1)
Dill seed (active ingredient) 40%, Tebuconazole (active ingredient) 4%, the formaldehyde condensation of methyl naphthalene sulfonic acid sodium
Thing (dispersant) 3%, Negel (dispersant) 3%, spaonin powder (wetting agent) 6%, soil powder (filler) complement to
100%；Each component is well mixed, 44% dill seed Tebuconazole wettable powder is made after pulverizer is pulverized and mixed
Agent.
Embodiment 3：60% dill seed tebuconazole water dispersible granule (1:1)
Dill seed (active ingredient) 30%, Tebuconazole (active ingredient) 30%, sodium lignin sulfonate (dispersant)
7.5%th, spaonin powder (wetting agent) 7.5%, starch (binding agent) 3.5%, sodium carbonate (disintegrant) 3%, white carbon (filler)
10%th, kaolin (filler) complements to 100%；Each component is well mixed, after airslide disintegrating mill crushes, 30min is stirred, pinches
Close, then add in fluid bed and be granulated, be dried after being granulated well, sieve the i.e. obtained azoles of 60% dill seed penta
Alcohol water dispersible granules.
Embodiment 4：24% dill seed tebuconazole suspension concentrates (5:1)
Dill seed (active ingredient) 20%, Tebuconazole (active ingredient) 4%, NPE are (scattered
Agent) 5%, pull open powder (wetting agent) 4.5%, Arabic gum (thickener) 2%, propane diols (antifreezing agent) 2%, organosilicon (defoaming
Agent) 0.2%, deionized water (solvent) complement to 100%；First other auxiliary agents are mixed, shear-mixed is uniform in cutter, so
Dill seed and Tebuconazole are added afterwards, 2h is ground in ball crusher, you can 24% dill seed Tebuconazole is made
Suspending agent.
Embodiment 5：33% dill seed Tebuconazole wettable powder (1:10)
Dill seed (active ingredient) 3%, Tebuconazole (active ingredient) 30%, sodium carboxymethylcellulose (dispersant)
4.5%th, lauryl sodium sulfate (wetting agent) 4%, diatomite (filler) complement to 100%；Each component is well mixed, through powder
33% dill seed Tebuconazole wettable powder is made after being pulverized and mixed in broken machine.
Embodiment 6：36% dill seed tebuconazole water dispersible granule (8:1)
Dill seed (active ingredient) 32%, Tebuconazole (active ingredient) 4%, polycarboxylate (dispersant) 3%, wood
Quality sodium sulfonate (dispersant) 2%, silkworm excrement (wetting agent) 5%, polyvinyl alcohol (binding agent) 2%, ammonium carbonate (disintegrant) 2%,
Bentonite (filler) complements to 100%；Each component is well mixed, after airslide disintegrating mill crushes, 30min is stirred, mediates, so
Add in fluid bed and be granulated afterwards, be dried after being granulated well, sieve i.e. obtained 36% dill seed Tebuconazole water
Dispersible granule.
Comparative example 1：30% dill seed suspending agent
Dill seed (active ingredient) 30%, aliphatic alcohol polyoxyvinethene phosphate (dispersant) 5.5%, dodecane
Base benzene sulfonic acid calcium (wetting agent) 5%, xanthans (thickener) 2%, ethylene glycol (antifreezing agent) 2%, C8-10 aliphatic alcohols compounds
(defoamer) 0.3%, deionized water (solvent) complement to 100%；First other auxiliary agents are mixed, shear-mixed is equal in cutter
It is even, dill seed is then added, 2h is ground in ball crusher, you can 30% dill seed suspending agent is made.
Comparative example 2：430 g/l of tebuconazole suspension concentrates, registration card number：PD20110287, Bayer Cropscience (China) have
Limit company, it is purchased in market.
4th, field control effectiveness test
Test method：Trial crops are cucumber, using conventional spray-on process, in the spray dispenser for the first time of disease early period of origination, and 7
Second of spray dispenser after it, common dispenser is twice.If clear water is blank control (CK), experiment sets 7 processing altogether, often handles 4 times
Repeat, per plot area 35m2, random district's groups arrangement.This test arrangement is in Nanning suburbs.
Investigation method：Before dispenser, 7 days after second of dispenser, each cell is investigated within 14 days, take at random at 4 points per cell, often
Point investigates 2 plants of whole blades, and the percentage that every leaf is accounted for leaf area by scab is classified.Record total number of sheets, the sick number of sheets at different levels and
Sick series, calculate disease index and prevention effect.
Grade scale is：
0 grade, disease-free spot；
1 grade, lesion area accounts for less than the 5% of whole leaf area；
3 grades, lesion area accounts for the 6%-10% of whole leaf area；
5 grades, lesion area accounts for the 11%-20% of whole leaf area；
7 grades, lesion area accounts for the 21%-40% of whole leaf area；
9 grades, lesion area accounts for more than the 40% of whole leaf area.
Disease index and prevention effect computational methods：
Formula (1)：Disease index calculation formula：In formula (1)：X- disease indexs；Ni- disease at different levels
The number of sheets；I- is with respect to value of series；N- investigates total number of sheets.
Formula (2)：Prevention effect calculation formula：In formula (2)：P- prevention effects, unit
For percentage (%)；CK0Disease index before the dispenser of-blank district；CK1Disease index after the dispenser of-blank district；PT0- medicine
Disease index before agent treatment region dispenser；PT1Disease index after the dispenser of-chemicals treatment district.
The dill seed of table 2, Tebuconazole and its compounding preventing and treating powdery mildew of cucumber field control effectiveness test
As can be seen from Table 2, dill seed and the bactericidal composition of Tebuconazole compounding can effectively prevent and treat cucumber white powder
Germ is infected, and prevention effect is better than single dose.Both mixtures can also delay the drug-fast generation of germ simultaneously, improve preventing and treating effect
Fruit.The bactericidal composition of the present invention is equal to trial crops without obvious harmful effect, and security is good, meets the security of pesticidal preparations
It is required that.
Claims (4)
1. a kind of bactericidal composition for preventing and treating powdery mildew of cucumber, it is characterised in that active ingredient is by dill seed and penta azoles
Alcohol forms, and the weight ratio of dill seed and Tebuconazole is 10-1:1-10.
2. bactericidal composition according to claim 1, it is characterised in that the weight of dill seed and Tebuconazole ratio is
1:5。
3. bactericidal composition according to claim 1 or 2, it is characterised in that described active ingredient accounts for bactericidal composition
The 1-70% of gross weight, surplus are acceptable auxiliary element on agricultural chemicals.
4. bactericidal composition according to claim 3, it is characterised in that described bactericidal composition is prepared into wettable powder
Agent, water dispersible granules or suspending agent.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711158731.9A CN107668080A (en) | 2017-11-20 | 2017-11-20 | A kind of bactericidal composition for preventing and treating powdery mildew of cucumber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711158731.9A CN107668080A (en) | 2017-11-20 | 2017-11-20 | A kind of bactericidal composition for preventing and treating powdery mildew of cucumber |
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| Publication Number | Publication Date |
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| CN107668080A true CN107668080A (en) | 2018-02-09 |
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ID=61150346
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| CN201711158731.9A Withdrawn CN107668080A (en) | 2017-11-20 | 2017-11-20 | A kind of bactericidal composition for preventing and treating powdery mildew of cucumber |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101298581A (en) * | 2008-06-18 | 2008-11-05 | 中国科学院新疆理化技术研究所 | Medicinal and edible plant cumin essential oil, preparation and use thereof |
| CN102093931A (en) * | 2010-12-09 | 2011-06-15 | 武汉大学 | Method for preparing dill seed essential oil and prevention and control effect thereof on sclerotinia rot of colza |
| CN102172239A (en) * | 2011-03-25 | 2011-09-07 | 陕西先农生物科技有限公司 | Flutriafol.tebuconazole sterilization composition |
| CN102860330A (en) * | 2012-10-09 | 2013-01-09 | 武汉大学 | Dill seed volatile-oil fragrant mildewcide and preparation method and application thereof |
| CN103907621A (en) * | 2013-01-06 | 2014-07-09 | 江苏丰登农药有限公司 | Sterilization composition containing fluxapyroxad and tebuconazole, and application thereof |
| CN107156184A (en) * | 2017-07-03 | 2017-09-15 | 广西南宁乐蕊生物科技有限责任公司 | A kind of bactericidal composition containing isotianil and dill seed |
-
2017
- 2017-11-20 CN CN201711158731.9A patent/CN107668080A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101298581A (en) * | 2008-06-18 | 2008-11-05 | 中国科学院新疆理化技术研究所 | Medicinal and edible plant cumin essential oil, preparation and use thereof |
| CN102093931A (en) * | 2010-12-09 | 2011-06-15 | 武汉大学 | Method for preparing dill seed essential oil and prevention and control effect thereof on sclerotinia rot of colza |
| CN102172239A (en) * | 2011-03-25 | 2011-09-07 | 陕西先农生物科技有限公司 | Flutriafol.tebuconazole sterilization composition |
| CN102860330A (en) * | 2012-10-09 | 2013-01-09 | 武汉大学 | Dill seed volatile-oil fragrant mildewcide and preparation method and application thereof |
| CN103907621A (en) * | 2013-01-06 | 2014-07-09 | 江苏丰登农药有限公司 | Sterilization composition containing fluxapyroxad and tebuconazole, and application thereof |
| CN107156184A (en) * | 2017-07-03 | 2017-09-15 | 广西南宁乐蕊生物科技有限责任公司 | A kind of bactericidal composition containing isotianil and dill seed |
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Application publication date: 20180209 |