CN101971815A - Composite pesticide for preventing and controlling rice sheath blight disease - Google Patents
Composite pesticide for preventing and controlling rice sheath blight disease Download PDFInfo
- Publication number
- CN101971815A CN101971815A CN2010102943219A CN201010294321A CN101971815A CN 101971815 A CN101971815 A CN 101971815A CN 2010102943219 A CN2010102943219 A CN 2010102943219A CN 201010294321 A CN201010294321 A CN 201010294321A CN 101971815 A CN101971815 A CN 101971815A
- Authority
- CN
- China
- Prior art keywords
- lentinan
- rice
- sheath blight
- blight disease
- rice sheath
- Prior art date
- 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.)
- Pending
Links
- 235000007164 Oryza sativa Nutrition 0.000 title claims abstract description 59
- 235000009566 rice Nutrition 0.000 title claims abstract description 59
- 201000010099 disease Diseases 0.000 title claims abstract description 46
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 title claims abstract description 46
- 239000000575 pesticide Substances 0.000 title claims abstract description 22
- 240000007594 Oryza sativa Species 0.000 title claims 2
- 239000002131 composite material Substances 0.000 title abstract 5
- 229920001491 Lentinan Polymers 0.000 claims abstract description 53
- 229940115286 lentinan Drugs 0.000 claims abstract description 53
- 150000003851 azoles Chemical class 0.000 claims description 26
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 10
- 239000003814 drug Substances 0.000 claims description 6
- 241000209094 Oryza Species 0.000 abstract description 64
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- 241000233866 Fungi Species 0.000 abstract description 7
- STMIIPIFODONDC-UHFFFAOYSA-N 2-(2,4-dichlorophenyl)-1-(1H-1,2,4-triazol-1-yl)hexan-2-ol Chemical compound C=1C=C(Cl)C=C(Cl)C=1C(O)(CCCC)CN1C=NC=N1 STMIIPIFODONDC-UHFFFAOYSA-N 0.000 abstract description 4
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- 238000000034 method Methods 0.000 abstract description 2
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- 238000002474 experimental method Methods 0.000 description 13
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- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
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- 230000000144 pharmacologic effect Effects 0.000 description 3
- 230000003449 preventive effect Effects 0.000 description 3
- WURBVZBTWMNKQT-UHFFFAOYSA-N 1-(4-chlorophenoxy)-3,3-dimethyl-1-(1,2,4-triazol-1-yl)butan-2-one Chemical compound C1=NC=NN1C(C(=O)C(C)(C)C)OC1=CC=C(Cl)C=C1 WURBVZBTWMNKQT-UHFFFAOYSA-N 0.000 description 2
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- 239000005842 Thiophanate-methyl Substances 0.000 description 2
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- QYPPRTNMGCREIM-UHFFFAOYSA-N methylarsonic acid Chemical compound C[As](O)(O)=O QYPPRTNMGCREIM-UHFFFAOYSA-N 0.000 description 2
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- QGHREAKMXXNCOA-UHFFFAOYSA-N thiophanate-methyl Chemical compound COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC QGHREAKMXXNCOA-UHFFFAOYSA-N 0.000 description 2
- 230000017260 vegetative to reproductive phase transition of meristem Effects 0.000 description 2
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- 108091032973 (ribonucleotides)n+m Proteins 0.000 description 1
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- OZOMQRBLCMDCEG-VIZOYTHASA-N 1-[(e)-[5-(4-nitrophenyl)furan-2-yl]methylideneamino]imidazolidine-2,4-dione Chemical compound C1=CC([N+](=O)[O-])=CC=C1C(O1)=CC=C1\C=N\N1C(=O)NC(=O)C1 OZOMQRBLCMDCEG-VIZOYTHASA-N 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 201000009030 Carcinoma Diseases 0.000 description 1
- 239000005499 Clomazone Substances 0.000 description 1
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- AGPKZVBTJJNPAG-WHFBIAKZSA-N L-isoleucine Chemical compound CC[C@H](C)[C@H](N)C(O)=O AGPKZVBTJJNPAG-WHFBIAKZSA-N 0.000 description 1
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- AYFVYJQAPQTCCC-GBXIJSLDSA-N L-threonine Chemical compound C[C@@H](O)[C@H](N)C(O)=O AYFVYJQAPQTCCC-GBXIJSLDSA-N 0.000 description 1
- KZSNJWFQEVHDMF-BYPYZUCNSA-N L-valine Chemical compound CC(C)[C@H](N)C(O)=O KZSNJWFQEVHDMF-BYPYZUCNSA-N 0.000 description 1
- KDXKERNSBIXSRK-UHFFFAOYSA-N Lysine Natural products NCCCCC(N)C(O)=O KDXKERNSBIXSRK-UHFFFAOYSA-N 0.000 description 1
- 239000004472 Lysine Substances 0.000 description 1
- PPQNQXQZIWHJRB-UHFFFAOYSA-N Methylcholanthrene Chemical compound C1=CC=C2C3=CC4=CC=C(C)C(CC5)=C4C5=C3C=CC2=C1 PPQNQXQZIWHJRB-UHFFFAOYSA-N 0.000 description 1
- CFZLNRGUBAVQNO-UHFFFAOYSA-N N-(3,5-Dichlorophenyl)succinimide Chemical compound ClC1=CC(Cl)=CC(N2C(CCC2=O)=O)=C1 CFZLNRGUBAVQNO-UHFFFAOYSA-N 0.000 description 1
- 241000813090 Rhizoctonia solani Species 0.000 description 1
- AUNGANRZJHBGPY-SCRDCRAPSA-N Riboflavin Chemical class OC[C@@H](O)[C@@H](O)[C@@H](O)CN1C=2C=C(C)C(C)=CC=2N=C2C1=NC(=O)NC2=O AUNGANRZJHBGPY-SCRDCRAPSA-N 0.000 description 1
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- OCKIGIGYJSACOC-UHFFFAOYSA-N [Zn].C[As](O)(O)=O Chemical compound [Zn].C[As](O)(O)=O OCKIGIGYJSACOC-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
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- PKOMXLRKGNITKG-UHFFFAOYSA-L calcium;hydroxy(methyl)arsinate Chemical compound [Ca+2].C[As](O)([O-])=O.C[As](O)([O-])=O PKOMXLRKGNITKG-UHFFFAOYSA-L 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- TWFZGCMQGLPBSX-UHFFFAOYSA-N carbendazim Chemical compound C1=CC=C2NC(NC(=O)OC)=NC2=C1 TWFZGCMQGLPBSX-UHFFFAOYSA-N 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
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- KIEDNEWSYUYDSN-UHFFFAOYSA-N clomazone Chemical compound O=C1C(C)(C)CON1CC1=CC=CC=C1Cl KIEDNEWSYUYDSN-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- AEJIMXVJZFYIHN-UHFFFAOYSA-N copper;dihydrate Chemical compound O.O.[Cu] AEJIMXVJZFYIHN-UHFFFAOYSA-N 0.000 description 1
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- UHQOYWRQNBWEAM-NBPRQAIYSA-N fungisterol Natural products CC(C)[C@@H](C)C=C[C@H](C)[C@@H]1CC[C@@H]2C3=C(CC[C@]12C)[C@@]4(C)CC[C@@H](O)C[C@H]4C=C3 UHQOYWRQNBWEAM-NBPRQAIYSA-N 0.000 description 1
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- FCOAHACKGGIURQ-UHFFFAOYSA-N iprobenfos Chemical compound CC(C)OP(=O)(OC(C)C)SCC1=CC=CC=C1 FCOAHACKGGIURQ-UHFFFAOYSA-N 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- WPOOICLZIIBUBM-UHFFFAOYSA-H iron;iron(3+);methyl-dioxido-oxo-$l^{5}-arsane Chemical compound [Fe].[Fe+3].[Fe+3].C[As]([O-])([O-])=O.C[As]([O-])([O-])=O.C[As]([O-])([O-])=O WPOOICLZIIBUBM-UHFFFAOYSA-H 0.000 description 1
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Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention provides a composite pesticide for preventing and controlling rice sheath blight disease, which comprises hexaconazole and lentinan in a mass part ratio of 1-30:0.5-10. In the invention, the hexaconazole and lentinan are combined for preventing and controlling rice sheath blight disease, and when the composite pesticide is sprayed onto the leaves in different periods of the growth process of rice, the generation of rice sheath blight disease can be inhibited completely. The composite pesticide can improve the antibacterial and antivirus capability of rice plants and therefore increase quality and yield. The composite pesticide is suitable for preventing and controlling rice sheath blight disease and can effectively prevent and control diseases caused by ascomycetes, basidiomycetes and fungi imperfecti.
Description
Technical field
What the present invention proposed is the agricultural chemicals that is used for the agriculture field crop disease control, specifically a kind of combined pesticide that is used to prevent and treat rice sheath blight disease.
Background technology
Rice sheath blight disease claims moire disease again, is to be infected by Rhizoctonia solani Kuhn to fall ill, and how to take place under high temperature, super-humid conditions.This disease can not be eared paddy rice, or the not plump paddy of heading is more, and grain heavily descends.Can select for use jinggangmeisu, thiophanate-methyl etc. to prevent and treat.
Germ mainly survives the winter in soil with sclerotium, also can survive the winter on the invalid body or on other hosts such as weeds in field with mycelium.Sclerotium flies at the water surface and other foreign material mix during next spring spring irrigation, and sclerotium adheres on the leaf sheath of the nearly water surface of rice strain after the rice transplanting, and condition is suitable to be born mycelia and invade leaf sheath tissue and endanger, and aerial hyphae is infected contiguous plant again.The paddy rice shooting stage state of an illness begins to increase sharply, and disease causes harm based on leaf sheath before the heading to horizontal, vertically expansion, and heading backward inclined blade, fringe neck are expanded.The sclerotium that falls into the water in early days also can cause the rice strain and infect.The early rice sclerotium is the main source of infection of late rice banded sclerotial blight.
At present, by adopting medicament to prevent and treat.It is the dispenser control that rice tillering later stage sick cave rate reaches 15%.First-selected 500-1000 times of liquid of clomazone aqua or 5% jinggangmeisu 100ml sprinkle to water 50L spraying or to water 400L and water.Or every 667m
2With 20% triadimefon missible oil 50-76ml, 50% thiophanate-methyl or 50% carbendazol wettable powder 100g, 30% dimethachlon wetting powder 50-75g, the upright withered spirit (rizolex) of 50% methyl or the mould clean wetting powder 200g of 33% line, every 667m
2Use soup 50L.Also available 20% mazn (methylarsonic acid zinc) or 10% calcim methanearsonate (Calar) wetting powder 100g add water 100L and spray, or add water 400-500L and sprinkle and to execute, or mix fine earth 25kg and spread fertilizer over the fields.Also available 5% neoasozin (methylarsonic acid sideramines) aqua 200g adds water 100L spraying or water 400L is poured, or mixes fine earth 20kg with 500g and spread fertilizer over the fields, and notes dosage and uses before booting, prevents to produce poisoning.Fall ill and to select the every 667m of 20% load bacterium spirit emulsion when heavier for use
2Medication 125-150mL or used synergistic effect with 75% load bacterium spirit wetting powder 75g and iprobenfos, and can doublely control banded sclerotial blight.Also available every 667m2250ml of 10% mebenil emulsion or 25% standing grain fringe would rather the every 667m of Wettable Powder
2Medication 50-70g, to water 75L spraying, effective drug effect is long.Also can select for use 77% to protect 700 times of liquid of Feng An (Kocide SD) wetting powder or 600 times of liquid of green nation 98 paddy rice tailored versions or 25% triadimefon wetting powder 100g; to water 75L respectively phase booting beginning, booting latter stage each anti-1 time; to sick cave rate, diseased plant rate and function leaf sheath scab severity; preventive effect is all very remarkable, effectively the defencive function blade.Also can select for use 2000 times of liquid of 25% enemy's power demulsification oil can prevent and treat rice sheath blight disease, sheath rot disease, false smut and rice kernel smut effectively in paddy rice a drug in booting stage.Can the double rice middle and later periods multiple diseases of harnessing the river.Every mu in the 4.5% jinggangmeisu copper sulphate aqua of producing with Qufu City Er Fu insecticide factory can doublely be controlled false smut with the 70-90mL spraying.
Own azoles alcohol, English common name: hexaconazole, molecular formula: C14H17C12N3O, molecular formula: 324.02, chemical name: (RS)-2-(2,4 dichloro benzene base)-1-(1H-1,2,4-triazol-1-yl)-oneself-2-alcohol, CA registration number: [79983-71-4].Proterties outward appearance: ecru loose powder; Proportion or density: about 1.04 (20 ℃); Fusing point: 110-112 ℃; Vapour pressure: 0.018mpa (20 ℃); Melting degree: 0.018mg/L in the water, methyl alcohol 246g/L, acetone 164g/L, toluene 59g/L, hexane 0.8g/L
The pure product of own azoles alcohol are clear crystal, 111 ℃ of fusing points, 25 ℃ of vapour pressure 0.11mPa (20 ℃), density 1.29g/cm3.Dissolubility (20 ℃), water 0.018mg/L, methyl alcohol 246g/L, toluene 59g/L, stability, room temperature (below 40 ℃) is not decomposed in 9 months at least, and is stable in 30 days in acid, alkalescence (PH5,7-9) aqueous solution.PH7 aqueous solution middle-ultraviolet lamp shines in following 10 days stable.
The mechanism of action: belong to azoles fungicide, sterol demethylation inhibitor, the disease that fungi especially Basidiomycota and Ascomycota are caused has the protection and the therapeutic action of broad spectrum activity.Destroy and stop the biosynthesis of the cell membrane important composition composition ergosterol of germ, cause cell membrane not form, make germ death.Have interior suction, protection and therapeutic activity.
Controlling object: prevent and treat disease due to sac fungi, basidiomycetes and the imperfect fungus effectively, especially disease that Basidiomycetes and Ascomycetes are caused such as powdery mildew, rust, scab, brown spot, anthracnose etc. have excellent protection and eradicant action.Rice sheath blight disease there is good preventive effect.
Lentinan is the compound that extracts from mushroom fruiting body, and through studies confirm that, application can improve immunity to human body, and resistant effect is also arranged, and therefore can improve the antibiotic and virus capable of paddy rice.
Because own azoles alcohol is the biochemistry medicament, though can play sterilization, antiviral effect, but it is relatively poor to rice plant growth's growth raising resistance effect, and lentinan not only has antibiotic and viral effect, also have the nutrition rice plant to improve opposing mushroom and virus attack and raising immunity, reduce the effect of pathogen hazard.
Therefore, the pure and mild lentinan cooperation of own azoles being used to prevent and treat rice sheath blight disease is the problem that is worth research.
Summary of the invention
The pure and mild lentinan of own azoles is collaborative prevents and treats rice sheath blight disease in order to utilize, and the present invention proposes a kind of combined pesticide that is used to prevent and treat rice sheath blight disease.This combined pesticide cooperates with lentinan by own azoles alcohol and acts synergistically, and solves the technical problem of preventing and treating rice sheath blight disease.
The scheme that technical solution problem of the present invention is adopted is:
Become combined pesticide by the pure and mild lentinan combined group of own azoles.Cooperation ratio: press mass ratio, mix by own azoles alcohol 1-30 part and lentinan 0.5-10 part.
Good effect, the present invention utilizes own azoles alcohol to cooperate with lentinan and prevents and treats rice sheath blight disease, carries out foliage-spray at growth process of riceplant by stages, can suppress the generation of rice sheath blight disease fully.And can promote antibiotic, the anti-virus ability of rice plant, play the effect that improves the quality with output.The control that is suitable for rice sheath blight disease is used, and can also prevent and treat disease due to sac fungi, basidiomycetes and the imperfect fungus effectively.
Embodiment
Combined pesticide is formed: the pure and mild lentinan of own azoles.
The cooperation ratio: press mass ratio, own azoles alcohol 1-30 part and lentinan 0.5-10 part are mixed.
The pharmacological action of own azoles alcohol:
Own azoles alcohol, the mechanism of action: belong to azoles fungicide, sterol demethylation inhibitor, the disease that fungi especially Basidiomycota and Ascomycota are caused has the protection and the therapeutic action of broad spectrum activity.Destroy and stop the biosynthesis of the cell membrane important composition composition ergosterol of germ, cause cell membrane not form, make germ death.Have interior suction, protection and therapeutic activity.
The pharmacological action of lentinan:
Lentinan is the effective active composition that extracts from the quality xianggu fruit body, the main component of mushroom is polysaccharose and unsaturated fatty acid, the ergosterol and the fungisterol that also contain a large amount of changed into vitamin Ds wherein have amino acid and vitamin B1, B2 and mineral salt and the raw fiber etc. of 7 kinds of needed by human such as isoleucine, lysine, phenyl alanine, methionine, Soviet Union's acid, threonine, valine.Can regulate through the lentinan of hot water extracting has the T of immunologic function cytoactive in the human body, can reduce the ability of methyl cholanthrene induced tumor.Mushroom has had strong inhibitory effects to cancer cell, is 97.5% to the inhibiting rate of small white mouse sarcoma 180, is 80% to the inhibiting rate of ehrlich carcinoma.Mushroom also contains double stranded RNA, can induce the generation interferon, has antibiotic and viral effect.That lentinan has is antibiotic and viral, antitumor, strengthen immune function of human body fast and stimulate interferon to form; Promote the utilization of human body to calcium; Correct the human chitinase deficiency disease.
Because lentinan has the adjusting immunologic function to human body, but also can stimulate the formation of interferon, also can provide several amino acids, play trophism, and increase calcareous absorption, thereby, the antibiotic and anti-virus ability of rice plant can be improved.And human body is an organism, and the effective material of human body is also had the effect that improves growth conditions to plant.
Some enterprise is according to the pharmacological action of lentinan, carried out effect experiment at phytopathogen and virus disease aspect preventing and treating, and obtained effect, and some enterprise has carried out agriculture chemical registration.
Now the enterprise that lentinan has been carried out agriculture chemical registration has:
Anyang, the Henan Province magnificent chemical industry Co., Ltd of shaking, the registration working concentration is 0.5% lentinan;
The rich agricultural science and technology of Heilongjiang Province's the earth development corporation, Ltd., the registration working concentration is 0.5% lentinan;
Liaoning Province Daliang Guangyin Biological Pesticide Co., Ltd., the registration working concentration is 0.5% lentinan; Polysaccharide;
Nantong, Jiangsu Province refreshing rain environment friendly agricultural Co., Ltd, the registration working concentration is 0.5% lentinan;
The Beijing YanHuaYongLe pesticide Co., Ltd, the registration working concentration is 0.2% lentinan;
Heilungkiang Suihua agricultural chemicals Co., Ltd, the registration working concentration is 0.5% lentinan;
Beijing San Pu hundred grass green galenical Co., Ltds, the registration working concentration is 0.1% lentinan;
Shandong Shengpeng Pesticide Co., Ltd, the registration working concentration is 10% lentinan;
The fertile Co., Ltd of Shanxi science-star's agricultural chemicals leaf, the registration working concentration is 0.5% lentinan.
Lentinan is tested the effect of rice sheath blight disease morbidity influence:
Laboratory experiment:
The antibacterial culture experiment of A, rice sheath blight disease: scrape from the paddy rice diseased plant and to get diseased tissue, put into culture dish, under the situation of simulating nature state temperature and humidity, cultivate, after its propagation enlarges, on cenobium, click and enter 0.5% the lentinan aqueous solution, continue to cultivate, by observing, the cenobium mycelium of the contact lentinan aqueous solution stops growing, and withered disappearing, and does not touch the cenobium continued growth breeding of the lentinan aqueous solution.The proof lentinan has inhibitory action to the pathogenic bacteria of rice sheath blight disease.
The antibiotic potted plant experiment of banded sclerotial blight between B, rice growing season: the rice paddy seed that will touch the rice sheath blight disease diseased plant is planted in the nutritive cube, wherein, three alms bowls are control group, three alms bowls are organized for being subjected to examination, the control group self-sow, the rice paddy seed that planted by the examination group is soaked seed with 1% the lentinan aqueous solution, carries out lentinan aqueous solution of foliage spray after emerging, then, each sprays once tillering stage, shooting stage and booting stage.By observing, pathological tissues just took place after the rice plant of tillering stage of control group and shooting stage, plant strain growth is unhealthy and strong, and not heading, and dead seedling has appearred in the later stage, and is subjected to the examination group that stiff reaction does not take place, until the knot of can normally earing.The proof lentinan can be prevented and treated rice sheath blight disease.
The land for growing field crops application experiment:
Spraying experiment from seeding stage to harvest time, is control group with not fragrant mushroom polysaccharide, and the foliage spray lentinan is made experimental group.
Spraying concentration chooses 0.5%.
Test 667 square metres of areas for every group, every group 30 row, for 3 groups of examinations, 3 repetitions.
Experimental technique: in identical rice cropping ground, 15 behavior control groups, 15 behavioral experiment groups.
Control group normal management and growth;
Experimental group is sprayed the lentinan aqueous solution by stages.It is as follows with the sprinkling number of times that the experimental group lentinan sprays period:
The seedling cultivation of rice phase, behind the rice seed germination in paddy seedbed, plant is long overhead 5 millimeters the time, sprays once;
Spray once before the rice transplanting;
Spray once when delaying seedling behind the rice transplanting;
The paddy rice shooting stage sprays once;
Rice anthesis sprays once;
The rice milking stage phase sprays once.
Effect observation: by pursuing the strain observed and recorded, control group banded sclerotial blight morbidity strain is 3%, experimental group morbidity 0.01%, and illness is lighter.Rice plant leaf sheath and leaf and stem are not seen obvious susceptible performance, the plant strain growth stalwartness, and growth potential is strong, full seed.Illustrate that lentinan not only can suppress the invasion and attack of germ and virus, but also improved the antibiotic and viral ability of rice plant.
The proof lentinan can play the effect of control to rice sheath blight disease.
Analyze its reason, lentinan to human body can produce antibiotic, antiviral, antitumor, strengthen immune function of human body and stimulate interferon to form fast; Promote the utilization of human body to calcium; Correct the human chitinase deficiency disease.And plant is had antibiotic and viral, raise immunity and the stimulation interferon forms too; Promotion is to the utilization of calcium; Correct the effect of enzyme deficiency disease.
Combined pesticide of the present invention is prevented and treated the application experiment of rice sheath blight disease:
With mass ratio, get 1 kilogram of own azoles alcohol, 0.5 kilogram of lentinan is dissolved in 100 kg of water, is mixed with mass percent and is 1.5% the combined pesticide aqueous solution, sprays soup as rice leaf.
Carry out foliage spray respectively in rice seedling phase, transplanting date, tillering stage, shooting stage, flowering stage, heading stage, pustulation period.Organize in contrast with the examination group that is subjected to of not spraying the combined pesticide aqueous solution, be subjected to the examination group as experimental group with what spray the combined pesticide aqueous solution.
Spraying concentration is 1.5%.
Test 667 square metres of areas for every group, be divided into 30 and go, wherein control group 15 is gone, and experimental group 15 row are for trying 3 groups, 3 repetitions.
Experimental technique: gradation is carried out the foliage spray of combined pesticide liquid to rice seedling.
Control group does not carry out foliage spray combined pesticide liquid.
Experimental group foliage spray combined pesticide liquid.
Seeding stage, transplanting date, tillering stage, shooting stage, flowering stage, heading stage, pustulation period are carried out foliage spray once respectively.
Effect observation: the control group banded sclerotial blight incidence of disease is 5%, and wherein total crop failure is 0.3%.And diseased plant is found at the experimental group end.Prove that the pure and mild lentinan combined pesticide of own azoles has produced tangible control efficiency to rice sheath blight disease.
In the combined pesticide, own azoles alcohol cooperates the ratio experiment with lentinan:
By the cooperation ratio experiment of the pure and mild lentinan of own azoles, reaching a conclusion is: effectively cooperation ratio is own azoles alcohol 1-30 part, lentinan 0.5-10 part.
Because own azoles alcohol has carried out agriculture chemical registration, proving has preventive and therapeutic effect to plant epiphyte and virus, so, do not repeat application experiment again.
Statistical effect:
Spray use by simple lentinan in the paddy growth cycle, prove and to reduce the incidence of disease, and own azoles alcohol is used with lentinan, can reach the effect that reduces the incidence of disease 100%.
Overall merit:
Because own azoles alcohol can be prevented and treated disease due to sac fungi, basidiomycetes and the imperfect fungus effectively, be used experiment by lentinan and the pure and mild lentinan of own azoles, prove that this combined pesticide has produced synergy, rice sheath blight disease there is control efficiency, especially begin to use in the rice seedling phase, can suppress the generation of rice sheath blight disease fully to each growth period of maturing stage.Can also be used to prevent because other plant disease due to sac fungi, basidiomycetes and the imperfect fungus.
Claims (1)
1. combined pesticide that is used to prevent and treat rice sheath blight disease is characterized in that:
Composition of medicine is formed: the pure and mild lentinan of own azoles;
Cooperation ratio: press mass ratio, mix by own azoles alcohol 1-30 part and lentinan 0.5-10 part.
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| CN104957184A (en) * | 2015-08-06 | 2015-10-07 | 杨新兰 | Bactericide containing epoxiconazole and radix astragali |
| CN105053039A (en) * | 2015-08-06 | 2015-11-18 | 杨新兰 | Bactericide containing hexaconazole and radix astragali |
| CN105104393A (en) * | 2015-08-31 | 2015-12-02 | 河北中天邦正生物科技股份公司 | Pesticide composition and application thereof |
| CN105191998A (en) * | 2015-08-10 | 2015-12-30 | 谢绪叶 | A fungicide containing hexaconazole and skullcap |
| CN106577057A (en) * | 2016-12-09 | 2017-04-26 | 姚旭 | Method for preventing rice sheath blight disease based on barnyard grass seed extract |
| CN108432771A (en) * | 2018-01-25 | 2018-08-24 | 山东农业大学 | A kind of antifreeze composition pesticide of disease-resistant wheat |
| CN108552188A (en) * | 2018-05-22 | 2018-09-21 | 浙江省桐庐汇丰生物科技有限公司 | A kind of bactericidal composition and its application containing prothioconazoles |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104957184A (en) * | 2015-08-06 | 2015-10-07 | 杨新兰 | Bactericide containing epoxiconazole and radix astragali |
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| CN106577057A (en) * | 2016-12-09 | 2017-04-26 | 姚旭 | Method for preventing rice sheath blight disease based on barnyard grass seed extract |
| CN108432771A (en) * | 2018-01-25 | 2018-08-24 | 山东农业大学 | A kind of antifreeze composition pesticide of disease-resistant wheat |
| CN108552188A (en) * | 2018-05-22 | 2018-09-21 | 浙江省桐庐汇丰生物科技有限公司 | A kind of bactericidal composition and its application containing prothioconazoles |
| CN108552188B (en) * | 2018-05-22 | 2020-03-06 | 浙江省桐庐汇丰生物科技有限公司 | Sterilization composition containing prothioconazole and application thereof |
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