CN109819827A - A kind of control method of capsicum epidemic disease - Google Patents
A kind of control method of capsicum epidemic disease Download PDFInfo
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- CN109819827A CN109819827A CN201910110973.3A CN201910110973A CN109819827A CN 109819827 A CN109819827 A CN 109819827A CN 201910110973 A CN201910110973 A CN 201910110973A CN 109819827 A CN109819827 A CN 109819827A
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- 239000001390 capsicum minimum Substances 0.000 title claims abstract description 64
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- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 23
- 240000008574 Capsicum frutescens Species 0.000 title 1
- 230000000855 fungicidal effect Effects 0.000 claims abstract description 66
- 239000000417 fungicide Substances 0.000 claims abstract description 66
- 241000208293 Capsicum Species 0.000 claims abstract description 63
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- XERJKGMBORTKEO-VZUCSPMQSA-N (1e)-2-(ethylcarbamoylamino)-n-methoxy-2-oxoethanimidoyl cyanide Chemical compound CCNC(=O)NC(=O)C(\C#N)=N\OC XERJKGMBORTKEO-VZUCSPMQSA-N 0.000 claims abstract description 28
- 239000005756 Cymoxanil Substances 0.000 claims abstract description 28
- OIPMQULDKWSNGX-UHFFFAOYSA-N bis[[ethoxy(oxo)phosphaniumyl]oxy]alumanyloxy-ethoxy-oxophosphanium Chemical compound [Al+3].CCO[P+]([O-])=O.CCO[P+]([O-])=O.CCO[P+]([O-])=O OIPMQULDKWSNGX-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000005807 Metalaxyl Substances 0.000 claims abstract description 20
- ZQEIXNIJLIKNTD-UHFFFAOYSA-N methyl N-(2,6-dimethylphenyl)-N-(methoxyacetyl)alaninate Chemical compound COCC(=O)N(C(C)C(=O)OC)C1=C(C)C=CC=C1C ZQEIXNIJLIKNTD-UHFFFAOYSA-N 0.000 claims abstract description 20
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000007781 pre-processing Methods 0.000 claims abstract description 7
- 241000196324 Embryophyta Species 0.000 claims description 21
- 230000009885 systemic effect Effects 0.000 claims description 20
- 238000004659 sterilization and disinfection Methods 0.000 claims description 13
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- 239000003795 chemical substances by application Substances 0.000 claims description 5
- DKVNPHBNOWQYFE-UHFFFAOYSA-N carbamodithioic acid Chemical compound NC(S)=S DKVNPHBNOWQYFE-UHFFFAOYSA-N 0.000 claims description 4
- 239000012990 dithiocarbamate Substances 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
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- 239000004411 aluminium Substances 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
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- 229960002447 thiram Drugs 0.000 description 1
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- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The present invention relates to capsicum epidemic disease prevention and control fields, specifically disclose a kind of control method of capsicum epidemic disease.Include the following steps: 1. to be colonized preceding soil treatment；2. capsicum strain rhizome portion processing；3. chili growth pre-processing；4. the chili growth middle and later periods is handled.The present invention is in view of the deficiencies of the prior art; the fungicide powder of non-internal-absorting is clamped with two-layer nonwoven and is wrapped in capsicum rhizome portion periphery; in capsicum strain early days of growth; root do not extend package it is outer when; water penetrates into root by two-layer nonwoven package when pouring, and the fungicide powder for the non-internal-absorting that two-layer nonwoven is clamped plays protection wall, reduces the usage amount of the fungicide of non-internal-absorting; pollution is reduced, while by cymoxanil and aliette；Or metalaxyl, cymoxanil, aliette mix according to a certain percentage, make it have multiaction site, low resistance risk, no interactions resistance, drug resistance can be able to delay to a certain extent and overcome.
Description
Technical field
The present invention relates to capsicum epidemic disease prevention and control fields, specifically disclose a kind of control method of capsicum epidemic disease.
Background technique
Capsicum is one of the main vegetables kind that people are fond of, but the dead seedling problem of capsicum caused by being endangered as epidemic disease is very tight
Weight.Capsicum epidemic disease was found in 1918 in New Mexico for the first time, caused the pathogen Phytophthora of capsicum epidemic disease
Capsici Leonian is named by Leonian in nineteen twenty-two, referred to as Phytophthora capsici.Capsicum epidemic disease is endangered most in world wide
One of serious phytopathogen can endanger a variety of important vegetables such as capsicum, tomato, eggplant, cucumber, can also endanger ocean
A variety of draft such as green onion, cocoa, rubber tree, cosmos and xylophyta.Due to the prevalence of capsicum epidemic disease, showed after the onset of capsicum
Rotten out, decayed fruit, the symptoms such as stem rot, whole strain is withered when serious, and grave illness field seedling mortality causes serious warp up to 30%~100%
Ji loss.
Phytophthora capsici is mainly overwintering in the soil or in residual invalid body on the ground with egg spore and chlamydospore, as
The primary source of infection that next year disease occurs.Egg spore can survive 3 years in soil in invalid body, and when condition is suitable for, egg spore can be sprouted
The root system or under ground portion of host plant are sent out and infected, or generates sporangium after sprouting, sporangium releases zoospore, warp
Rainwater or irrigation water, which propagate on Plant aboveground stem, leaf and fruit, to be caused to fall ill.Under suitable conditions, Phytophthora capsici invades capsicum
A large amount of sporangiums can be generated on sick portion surface usually in several days after equal hosts and release zoospore, become and infect again
Source, seedling, soil and irrigation water by wind and rainwater or in spite of illness are propagated.Frequent generation, disease development ten are infected again
Divide rapid.Germ can directly invade or wound intrusion, kidney shape zoospore are swum over near infection court in water, form the spore that stops,
Germ tube intrusion host is grown again.A large amount of mycelium are formed after zoospore intrusion host, after the contact of A1 and A2 bacterial strain, generate ovum
Spore becomes the primary source of infection in next year.
It the use of chemical pesticide is still the most easy and effective method for preventing and treating capsicum epidemic disease.Due to the cause of disease of capsicum epidemic disease
Bacterium can long-term survival in the soil, and the generation of capsicum epidemic disease is mainly more close with the relationships such as weather, variety resistance.Disease hair
Life is mostly infected since root, has been fallen flat when aerial part shows symptom, then with Agro-chemicals control.Cause
This, Agro-chemicals control capsicum epidemic disease answers Systemic administration.
Summary of the invention
In order to solve the technical problems existing in the prior art, the purpose of the present invention is to provide a kind of the anti-of capsicum epidemic disease
Control method, the fungicide powder of non-internal-absorting clamped with two-layer nonwoven and is wrapped in capsicum rhizome portion periphery, capsicum strain at
Long initial stage, root do not extend package it is outer when, water is wrapped up by two-layer nonwoven and penetrates into root, two-layer nonwoven when pouring
The fungicide for the non-internal-absorting clamped plays protection wall, reduces the usage amount of the fungicide of non-internal-absorting, reduces pollution,
Simultaneously by cymoxanil and aliette；Or metalaxyl, cymoxanil, aliette mix according to a certain percentage, make it have multiaction
Site, low resistance risk, no interactions resistance, drug resistance can be able to delay to a certain extent and overcome.
The technical solution adopted in the present invention is as follows:
A kind of control method of capsicum epidemic disease, includes the following steps:
1., be colonized before soil treatment
It is first carried out disinfection with 25% metalaxyl wettable powder to soil before field planting, then killing soil and non-internal-absorting
Microbial inoculum is mixed evenly；
2., capsicum strain rhizome portion processing
After capsicum strain rhizome portion disinfection with step 1. in treated soil is wrapped to form package group, package group is external with double
It is normal to plant after layer non-woven wraps；
3., chili growth pre-processing
Base of the plant is sprayed with systemic fungicide, prevents First aggression；
4., the chili growth middle and later periods processing
Base of the plant is sprayed with systemic fungicide, while pouring capsicum root with the fungicide water for being mixed with non-internal-absorting,
It prevents from infecting again；
The step 2. in the fungicide of non-internal-absorting is filled between two-layer nonwoven.
The fungicide of non-internal-absorting has surface protection effect, and the residual period is long, and the sporangium of phytophthora can be inhibited to discharge
Zoospore and zoospore are sprouted.This kind of medicament is not likely to produce drug resistance, but cannot be absorbed by plants, while cannot protect not
The position contacted with fungicide, original method dosage is big, and effect is undesirable, seriously polluted, now by the sterilization of non-internal-absorting
Agent powder is clamped with two-layer nonwoven is wrapped in capsicum rhizome portion periphery, and in capsicum strain early days of growth, root does not extend packet
When wrapping up in outer, play the role of protecting wall.
Further, 1. the fungicide weight ratio of middle soil and non-internal-absorting is (80-100): (1-5) to the step.
Further, the fungicide of the non-internal-absorting includes copper agent, dithiocarbamate and dicarboximide
Class fungicide.
Further, the systemic fungicide is mixed by cymoxanil and aliette；Or by metalaxyl, cymoxanil,
Aliette mixes.
Systemic fungicide is single to the action site of pathogen, once this site mutates, germ is also easy to produce anti-medicine
Property, by cymoxanil and aliette in this method；Or metalaxyl, cymoxanil, aliette mix according to a certain percentage, make it have
Multiaction site, low resistance risk, no interactions resistance, drug resistance can be able to delay to a certain extent and overcome.
Further, the cymoxanil and aliette weight ratio are 1:5-1:1；Or metalaxyl, cymoxanil, aliette weight
Amount is than being (1-3): 1:3.
Compared with the prior art, beneficial effects of the present invention are as follows:
The control method of capsicum epidemic disease of the present invention is that the fungicide powder of non-internal-absorting is clamped package with two-layer nonwoven
In capsicum rhizome portion periphery, in capsicum strain early days of growth, root do not extend package it is outer when, water passes through bilayer nonwoven when pouring
Cloth package penetrates into root, and the fungicide powder for the non-internal-absorting that two-layer nonwoven is clamped plays protection wall, reduces non-
The usage amount of the fungicide of absorbability reduces pollution, while by cymoxanil and aliette, or by metalaxyl, cymoxanil, second phosphorus
Aluminium mixes according to a certain percentage, makes it have multiaction site, low resistance risk, no interactions resistance, and drug resistance can be certain
It is able to delay in degree and overcome.Using the control method of capsicum epidemic disease of the present invention, the prevention and treatment effect of capsicum epidemic disease can be effectively prevented
Fruit, control efficiency is 95% or more.
Specific embodiment
The present invention is further illustrated with reference to embodiments.
Embodiment 1
A kind of control method of capsicum epidemic disease, includes the following steps:
1., be colonized before soil treatment
It is first carried out disinfection with 25% metalaxyl wettable powder to soil before field planting, it is then mixed with the fungicide of non-internal-absorting
Conjunction stirs evenly；The fungicide weight ratio of the soil and non-internal-absorting is 85:3；
2., capsicum strain rhizome portion processing
After capsicum strain rhizome portion disinfection with step 1. in treated soil is wrapped to form package group, package group is external with double
It is normal to plant after layer non-woven wraps；
3., chili growth pre-processing
Base of the plant is sprayed with systemic fungicide, prevents First aggression；
4., the chili growth middle and later periods processing
Base of the plant is sprayed with systemic fungicide, while pouring capsicum root with the fungicide water for being mixed with non-internal-absorting,
It prevents from infecting again；
The step 2. in the fungicide powder of non-internal-absorting is filled between two-layer nonwoven.
The fungicide of the non-internal-absorting is dithiocarbamate fungicide zineb.
The systemic fungicide is mixed by cymoxanil, aliette, weight ratio 1:1.
Embodiment 2
A kind of control method of capsicum epidemic disease, includes the following steps:
1., be colonized before soil treatment
It is first carried out disinfection with 25% metalaxyl wettable powder to soil before field planting, it is then mixed with the fungicide of non-internal-absorting
Conjunction stirs evenly；The fungicide weight ratio of the soil and non-internal-absorting is 100:5；
2., capsicum strain rhizome portion processing
After capsicum strain rhizome portion disinfection with step 1. in treated soil is wrapped to form package group, package group is external with double
It is normal to plant after layer non-woven wraps；
3., chili growth pre-processing
Base of the plant is sprayed with systemic fungicide, prevents First aggression；
4., the chili growth middle and later periods processing
Base of the plant is sprayed with systemic fungicide, while pouring capsicum root with the fungicide water for being mixed with non-internal-absorting,
It prevents from infecting again；
The step 2. in the fungicide powder of non-internal-absorting is filled between two-layer nonwoven.
The fungicide of the non-internal-absorting is dicarboximide fungicide iprodione.
The systemic fungicide is mixed by cymoxanil, aliette, weight ratio 1:3.
Embodiment 3
A kind of control method of capsicum epidemic disease, includes the following steps:
1., be colonized before soil treatment
It is first carried out disinfection with 25% metalaxyl wettable powder to soil before field planting, it is then mixed with the fungicide of non-internal-absorting
Conjunction stirs evenly；The fungicide weight ratio of the soil and non-internal-absorting is 84:3；
2., capsicum strain rhizome portion processing
After capsicum strain rhizome portion disinfection with step 1. in treated soil is wrapped to form package group, package group is external with double
It is normal to plant after layer non-woven wraps；
3., chili growth pre-processing
Base of the plant is sprayed with systemic fungicide, prevents First aggression；
4., the chili growth middle and later periods processing
Base of the plant is sprayed with systemic fungicide, while pouring capsicum root with the fungicide water for being mixed with non-internal-absorting,
It prevents from infecting again；
The step 2. in the fungicide powder of non-internal-absorting is filled between two-layer nonwoven.
The fungicide of the non-internal-absorting is copper agent class fungicide Kocide SD.
The systemic fungicide is mixed by metalaxyl, cymoxanil, aliette, weight ratio 1:1:3.
Embodiment 4
A kind of control method of capsicum epidemic disease, includes the following steps:
1., be colonized before soil treatment
It is first carried out disinfection with 25% metalaxyl wettable powder to soil before field planting, it is then mixed with the fungicide of non-internal-absorting
Conjunction stirs evenly；The fungicide weight ratio of the soil and non-internal-absorting is 90:3；
2., capsicum strain rhizome portion processing
After capsicum strain rhizome portion disinfection with step 1. in treated soil is wrapped to form package group, package group is external with double
It is normal to plant after layer non-woven wraps；
3., chili growth pre-processing
Base of the plant is sprayed with systemic fungicide, prevents First aggression；
4., the chili growth middle and later periods processing
Base of the plant is sprayed with systemic fungicide, while pouring capsicum root with the fungicide water for being mixed with non-internal-absorting,
It prevents from infecting again；
The step 2. in the fungicide powder of non-internal-absorting is filled between two-layer nonwoven.
The fungicide of the non-internal-absorting is dithiocarbamate fungicide thiram.
The systemic fungicide is mixed by metalaxyl, cymoxanil, aliette, weight ratio 3:1:3.
5 systemic fungicide recipe determination of embodiment
Test method: on the basis of preliminary experiment, select each medicament (metalaxyl, cymoxanil and aliette) to capsicum epidemic disease
5 concentration of the sick pathogen mycelial growth inhibition rate within the scope of 10%-90%, are made into certain density mother for medicament with methanol
Liquid is added separately to have melted and be cooled to according to the ratio of volume ratio 1:100 in 50 DEG C or so of PDA culture medium, sufficiently mixed
It is poured into respectively after even in the culture dish of 4 sterilizings, the pastille culture medium of series of concentrations is made, the PDA of isometric methanol is added
Plate is control.The stand-by pathogen bacteria cake cultivated in PDA culture medium is intercepted with punch, mycelia is inoculated in up to have coagulated
Solid drug containing PDA culture medium center, be placed in dark culturing at 25 DEG C, when compareing long colony diameter to more than plate diameter 2/3,
With calliper to measure colony diameter.Each bacterium colony each 1 time with crossing method vertical measurement diameter, take its average value.Every processing weight
Multiple 3 times, and compare the growth inhibition ratio [growth inhibition ratio (%)={ [(compare for calculating each chemicals treatment and extending to bacterium colony
Colony diameter-bacteria cake diameter)-(processing colony diameter-bacteria cake diameter)]/(control colony diameter-bacteria cake diameter) } ×
100].Analysis compares reagent agent to the influence for examination pathogen mycelia growth.Using the logarithm of drug concentration as abscissa, bacterium
The probability value of silk growth inhibition ratio are ordinate, are analyzed using regression analysis test data, calculate each processing
EC50 value.Co-toxicity coefficient (CTC) is calculated according to Sun Yunpei's Method again.When CTC≤80, then composition shows as antagonism, as 80 <
CTC < 120, then composition shows as summation action, and when CTC >=120, then composition shows as synergistic effect.
1 cymoxanil of table and aliette compound the indoor toxicity test to capsicum epidemic disease
As shown in Table 1, cymoxanil and aliette, which are applied in combination, has synergistic effect to capsicum epidemic disease, when cymoxanil and second phosphorus
When aluminium proportion is 1:5-1:1, CTC is greater than 120；When especially cymoxanil and aliette proportion are 1:3, there is significant synergy to make
With.
The indoor toxicity test of 2 metalaxyl of table, cymoxanil and aliette compounding to capsicum epidemic disease
As shown in Table 2, selection metalaxyl is found with (cymoxanil: aliette=1:3) compounding is combined, C and D proportion are 1:
When 1 (i.e. metalaxyl: cymoxanil: aliette=1:1:3), triple combination is more more obvious than binary combination synergistic effect.
Above content is only to present inventive concept example and explanation, affiliated those skilled in the art couple
Described specific embodiment does various modifications or additions or is substituted in a similar manner, without departing from invention
Conceive or beyond the scope defined by this claim, is within the scope of protection of the invention.
Claims (5)
1. a kind of control method of capsicum epidemic disease, which comprises the steps of:
1. soil treatment before being colonized
It is first carried out disinfection with 25% metalaxyl wettable powder to soil before field planting, then by the fungicide of soil and non-internal-absorting
It is mixed evenly；
2. capsicum strain rhizome portion processing
After capsicum strain rhizome portion disinfection with step 1. in treated soil is wrapped to form package group, the external double-deck nothing of package group
It is normal to plant after woven fabric package；
3. chili growth pre-processing
Base of the plant is sprayed with systemic fungicide, prevents First aggression；
4. the chili growth middle and later periods is handled
Base of the plant is sprayed with systemic fungicide, while pouring capsicum root with the fungicide water for being mixed with non-internal-absorting, is prevented
It infects again；
The step 2. in the fungicide of non-internal-absorting is filled between two-layer nonwoven.
2. a kind of control method of capsicum epidemic disease according to claim 1, which is characterized in that the step 1. in soil with
The fungicide mixed weight ratio of non-internal-absorting is (80-100): (1-5).
3. a kind of control method of capsicum epidemic disease according to claim 1 or 2, which is characterized in that the non-internal-absorting
Fungicide include copper agent, dithiocarbamate and dicarboximide fungicide.
4. a kind of control method of capsicum epidemic disease according to claim 1, which is characterized in that the systemic fungicide by
Cymoxanil, aliette are mixed or are mixed by metalaxyl, cymoxanil, aliette.
5. a kind of control method of capsicum epidemic disease according to claim 4, which is characterized in that the cymoxanil and second phosphorus
Aluminium weight ratio is 1:5-1:1；Or metalaxyl, cymoxanil, aliette weight ratio are (1-3): 1:3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910110973.3A CN109819827B (en) | 2019-02-12 | 2019-02-12 | Prevention and treatment method for pepper phytophthora blight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910110973.3A CN109819827B (en) | 2019-02-12 | 2019-02-12 | Prevention and treatment method for pepper phytophthora blight |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109819827A true CN109819827A (en) | 2019-05-31 |
| CN109819827B CN109819827B (en) | 2022-01-07 |
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