CN110710538B - Composite bactericidal composition containing fructus psoraleae seed extract and prothioconazole, bactericide and application - Google Patents
Composite bactericidal composition containing fructus psoraleae seed extract and prothioconazole, bactericide and application Download PDFInfo
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- CN110710538B CN110710538B CN201911065588.8A CN201911065588A CN110710538B CN 110710538 B CN110710538 B CN 110710538B CN 201911065588 A CN201911065588 A CN 201911065588A CN 110710538 B CN110710538 B CN 110710538B
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- China
- Prior art keywords
- prothioconazole
- seed extract
- percent
- bactericide
- fructus psoraleae
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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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- 241000607479 Yersinia pestis Species 0.000 description 1
- 239000001089 [(2R)-oxolan-2-yl]methanol Substances 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000008272 agar Substances 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 244000000005 bacterial plant pathogen Species 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000000853 biopesticidal effect Effects 0.000 description 1
- 239000004305 biphenyl Substances 0.000 description 1
- 235000010290 biphenyl Nutrition 0.000 description 1
- IXVMHGVQKLDRKH-KNBKMWSGSA-N brassinolide Chemical compound C1OC(=O)[C@H]2C[C@H](O)[C@H](O)C[C@]2(C)[C@H]2CC[C@]3(C)[C@@H]([C@H](C)[C@@H](O)[C@H](O)[C@@H](C)C(C)C)CC[C@H]3[C@@H]21 IXVMHGVQKLDRKH-KNBKMWSGSA-N 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 229920005551 calcium lignosulfonate Polymers 0.000 description 1
- RYAGRZNBULDMBW-UHFFFAOYSA-L calcium;3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Ca+2].COC1=CC=CC(CC(CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O RYAGRZNBULDMBW-UHFFFAOYSA-L 0.000 description 1
- RNWGYDIGXJHCHP-UHFFFAOYSA-L calcium;dodecane-1-sulfonate Chemical compound [Ca+2].CCCCCCCCCCCCS([O-])(=O)=O.CCCCCCCCCCCCS([O-])(=O)=O RNWGYDIGXJHCHP-UHFFFAOYSA-L 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- HPXRVTGHNJAIIH-UHFFFAOYSA-N cyclohexanol Chemical compound OC1CCCCC1 HPXRVTGHNJAIIH-UHFFFAOYSA-N 0.000 description 1
- MHDVGSVTJDSBDK-UHFFFAOYSA-N dibenzyl ether Chemical group C=1C=CC=CC=1COCC1=CC=CC=C1 MHDVGSVTJDSBDK-UHFFFAOYSA-N 0.000 description 1
- LNJNFVJKDJYTEU-UHFFFAOYSA-N diethofencarb Chemical compound CCOC1=CC=C(NC(=O)OC(C)C)C=C1OCC LNJNFVJKDJYTEU-UHFFFAOYSA-N 0.000 description 1
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 1
- 239000007884 disintegrant Substances 0.000 description 1
- JMGZBMRVDHKMKB-UHFFFAOYSA-L disodium;2-sulfobutanedioate Chemical compound [Na+].[Na+].OS(=O)(=O)C(C([O-])=O)CC([O-])=O JMGZBMRVDHKMKB-UHFFFAOYSA-L 0.000 description 1
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 244000000004 fungal plant pathogen Species 0.000 description 1
- IXORZMNAPKEEDV-UHFFFAOYSA-N gibberellic acid GA3 Natural products OC(=O)C1C2(C3)CC(=C)C3(O)CCC2C2(C=CC3O)C1C3(C)C(=O)O2 IXORZMNAPKEEDV-UHFFFAOYSA-N 0.000 description 1
- IXORZMNAPKEEDV-OBDJNFEBSA-N gibberellin A3 Chemical compound C([C@@]1(O)C(=C)C[C@@]2(C1)[C@H]1C(O)=O)C[C@H]2[C@]2(C=C[C@@H]3O)[C@H]1[C@]3(C)C(=O)O2 IXORZMNAPKEEDV-OBDJNFEBSA-N 0.000 description 1
- 235000021021 grapes Nutrition 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229920003063 hydroxymethyl cellulose Polymers 0.000 description 1
- 229940031574 hydroxymethyl cellulose Drugs 0.000 description 1
- 229940056881 imidacloprid Drugs 0.000 description 1
- YWTYJOPNNQFBPC-UHFFFAOYSA-N imidacloprid Chemical compound [O-][N+](=O)\N=C1/NCCN1CC1=CC=C(Cl)N=C1 YWTYJOPNNQFBPC-UHFFFAOYSA-N 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 229940115286 lentinan Drugs 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- URXNVXOMQQCBHS-UHFFFAOYSA-N naphthalene;sodium Chemical compound [Na].C1=CC=CC2=CC=CC=C21 URXNVXOMQQCBHS-UHFFFAOYSA-N 0.000 description 1
- 239000012053 oil suspension Substances 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920001522 polyglycol ester Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- TVLSRXXIMLFWEO-UHFFFAOYSA-N prochloraz Chemical compound C1=CN=CN1C(=O)N(CCC)CCOC1=C(Cl)C=C(Cl)C=C1Cl TVLSRXXIMLFWEO-UHFFFAOYSA-N 0.000 description 1
- QXJKBPAVAHBARF-BETUJISGSA-N procymidone Chemical compound O=C([C@]1(C)C[C@@]1(C1=O)C)N1C1=CC(Cl)=CC(Cl)=C1 QXJKBPAVAHBARF-BETUJISGSA-N 0.000 description 1
- BUCOQPHDYUOJSI-UHFFFAOYSA-N prohexadione Chemical compound CCC(=O)C1C(=O)CC(C(O)=O)CC1=O BUCOQPHDYUOJSI-UHFFFAOYSA-N 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 235000002639 sodium chloride Nutrition 0.000 description 1
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 150000003890 succinate salts Chemical class 0.000 description 1
- 239000001384 succinic acid Substances 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 229940104261 taurate Drugs 0.000 description 1
- XOAAWQZATWQOTB-UHFFFAOYSA-N taurine Chemical compound NCCS(O)(=O)=O XOAAWQZATWQOTB-UHFFFAOYSA-N 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- BSYVTEYKTMYBMK-UHFFFAOYSA-N tetrahydrofurfuryl alcohol Chemical compound OCC1CCCO1 BSYVTEYKTMYBMK-UHFFFAOYSA-N 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- 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]
- A01N65/20—Fabaceae or Leguminosae [Pea or Legume family], e.g. pea, lentil, soybean, clover, acacia, honey locust, derris or millettia
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Plant Pathology (AREA)
- Dentistry (AREA)
- Agronomy & Crop Science (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Natural Medicines & Medicinal Plants (AREA)
- Biotechnology (AREA)
- Microbiology (AREA)
- Mycology (AREA)
- Pest Control & Pesticides (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a composite bactericidal composition containing a psoralea seed extract and prothioconazole, a bactericide and application. The mass ratio of the fructus psoraleae seed extract to the prothioconazole is 1: 99-200. The invention also discloses application of the bactericide in preventing and treating peach brown rot, grape anthracnose and strawberry gray mold on fruit trees. After the malaytea scurfpea seed extract and the prothioconazole are compounded according to a certain proportion, the composition has a strong synergistic effect, and field test results show that the highest prevention effect on peach brown rot, grape anthracnose and strawberry gray mold can reach 100 percent, so that the composition is obviously superior to the prevention effect of a single malaytea scurfpea seed extract and prothioconazole preparation, the medicine cost is saved, the drug resistance is delayed, and the composition has a good application prospect.
Description
Technical Field
The invention belongs to the field of agricultural bactericides, and particularly relates to a composite bactericidal composition containing a psoralea seed extract and prothioconazole, a bactericide and application.
Background
Peach, grape and strawberry are the main fruits in China, and the diseases harm leaves, flowers and fruits of fruit trees and the like to directly or indirectly influence the yield and quality of the fruit trees. Common diseases of fruit trees include brown rot, anthracnose, gray mold and the like. With the wide application of the bactericide with single action in fruit trees for a long time, pathogenic bacteria can generate drug resistance to the bactericide, and the disease damage which is difficult to control is serious. Due to the long-term use of carbendazim and diethofencarb for preventing and controlling brown rot, anthracnose and gray mold, the fruit tree disease resistance is common, and the compound with excellent control effect in the past can be used as a compound or a compound component or slowly quit the market. Zhejiang cottage Fufeng Biotechnology Co., Ltd applies for a composition (CN201810494636.4) of prothioconazole and lentinan, which can be used for preventing and treating rice sheath blight. The fast agricultural science limited company in Guangdong applies for a bactericidal composition (CN2016106355035) containing bromothalonil and prothioconazole, which is suitable for preventing and treating crop diseases caused by fungi, and the composition is disclosed in a general way to be capable of preventing and treating diseases caused by fungi such as rice, lawn, sweet broad pea, balsam pear, cowpea, tea tree, Chinese cabbage and the like. CN2015109626316 discloses a pesticide composition containing prothioconazole and imidacloprid, a preparation method and an application thereof, which can prevent and treat various plant diseases and insect pests which occur in a mixed manner or in a sequential manner in wheat. CN 2016109948155 discloses a pesticide composition containing benzothiostrobin and prothioconazole and application thereof, wherein the composition can be widely applied to prevention and treatment of sclerotinia rot of colza, rice sheath blight, rice blast, wheat sheath blight, wheat scab, gray mold, apple rot, dry rot, alternaria leaf spot, grape anthracnose, ring spot and the like. CN 201610148008.1 discloses that prothioconazole and a plant growth regulator are effective components, wherein the plant growth regulator is selected from one or more of gibberellic acid, compound sodium nitrophenolate and brassinolide, the composition can obviously reduce the application amount of each single agent, not only can effectively control plant pathogenic fungi and prevent and treat multiple diseases such as rice gray mold, wheat rust, sclerotinia rot of colza, wheat sharp eyespot and the like, but also can regulate the growth of plants to achieve the effect of increasing the yield of crops. CN 2008100100100165 discloses a biopesticide for controlling plant fungal diseases by psoralen, which can inhibit common plant pathogenic bacteria, such as apple rot pathogen, apple ring rot pathogen, rice blast, rice sheath blight pathogen, cucumber fusarium wilt pathogen, wheat scab pathogen, cucumber anthracnose pathogen, phytophthora capsici leonian and the like.
Disclosure of Invention
The purpose of the invention is as follows: the invention provides a composite bactericidal composition containing a psoralea seed extract and prothioconazole. A bactericide prepared by the composition and application thereof.
The technical scheme is as follows: the invention relates to a composite bactericidal composition containing a fructus psoraleae seed extract and prothioconazole, wherein the mass ratio of the fructus psoraleae seed extract to the prothioconazole is (1): 99-200.
Preferably, the mass ratio of the psoralea seed extract to the prothioconazole is 1: 149-199.
The invention provides a bactericide, wherein the total content of the fructus psoraleae seed extract and prothioconazole accounts for 1-60% of the mass of the bactericide.
Preferably, the total content of the psoralea seed extract and the prothioconazole accounts for 10-40% of the mass percent of the bactericide.
Preferably, the bactericide is in the form of any one of water dispersible granules, wettable powder, missible oil, suspending agents, oil suspending agents, suspoemulsion, suspended seed coating agents, aqueous emulsion and microemulsion.
The bactericide composition can be prepared into preparation formulations according to a method known by people in the technical field, and the preparation formulations comprise water dispersible granules, wettable powder, missible oil, suspending agents, oil suspending agents, suspoemulsion, suspended seed coating agents, aqueous emulsion and microemulsion.
Known auxiliaries are emulsifiers, wetting dispersants, suspending agents, disintegrants, binders, antifreezes, thickeners, stabilizers, antifoams and the like.
The emulsifier comprises phenylethylphenol polyoxyethylene polyoxypropylene ether, styrylphenol formaldehyde resin polyoxyethylene-polyoxypropylene block polyether, fatty acid polyoxyethylene ether, polyoxyethylene fatty alcohol ether, glycerol trilaurate polyoxyethylene ether, dibenzyl biphenyl polyoxyethylene ether, glycerol monolaurate polyoxyethylene ether, styrylphenol polyoxyethylene ether, castor oil polyoxyethylene ether, ethoxylated castor oil polyoxyethylene ether, alkylphenol polyoxypropylene polyoxyethylene ether, styrylphenyl polyoxyethylene ether, sec-octyl phenol polyoxyethylene ether, nonylphenol polyoxyethylene ether, alkylaryl polyoxyethylene polyoxypropylene ether, alkylphenol polyoxyethylene ether, sorbitan fatty acid ester polyoxyethylene ether, fatty alcohol polyoxyethylene ether sulfonate, polyoxyethylene alkylphenol formaldehyde condensate, calcium dodecyl sulfonate, decyl alcohol polyoxyethylene ether sodium sulfosuccinate, sodium lauryl sulfate, polyoxyethylene lauryl, One or more of sodium alkylphenol polyoxyethylene ether formaldehyde condensate sulfate, alkylphenol polyoxyethylene ether succinic acid monoester sulfonate, alkylphenol polyoxyethylene phosphate, alkylphenol polyoxyethylene ether sulfonated succinate, polyoxyethylene fatty acid ester, polymethyl acrylate, polyoxyethylene fatty ammonia, ethoxylated castor oil, alkyl-diethylene glycol ether-sodium sulfonate, fatty acid polyglycol ester, a quick penetration agent T, oleic acid polyglycol 400 ester and fatty alcohol polyoxyethylene ether;
the dispersant comprises one or more of sodium lignosulfonate, sodium methylene dinaphthalene sulfonate (dispersant NNO), calcium lignosulfonate, sodium polyacrylate, sodium methylene dinaphthalene sulfonate, polyvinylpyrrolidone, alkylamido taurate, sodium salt of alkyl naphthalene sulfonic acid polycondensate and a formaldehyde condensate of sodium methylene dinaphthalene sulfonate;
the wetting agent comprises a mixture of alkyl naphthalene sodium sulfonate, lauryl sodium sulfate, secondary alkyl sodium sulfate, sodium dodecyl benzene sulfonate, fatty alcohol polyglycol ether sulfate, fatty alcohol polyoxyethylene ether, nonylphenol polyoxyethylene ether, sorbitan fatty acid ester polyoxyethylene ether, alkyl naphthalene formaldehyde condensate, alkyl naphthalene sulfonate and an anionic wetting agent;
the solvent comprises water, N-methyl pyrrolidone, N-dimethylformamide, tributyl phosphate, tetrahydrofurfuryl alcohol, toluene, xylene, dimethyl sulfoxide, tetrahydrofuran, 1, 4 dioxane, cyclohexanol, cyclohexanone, epoxidized soybean oil, vegetable soybean oil, liquid wax, lubricating oil or solvent oil No. 100, No. 150, No. 180, No. 200 and the like, and can also be other common solvents in the field;
the filler comprises one or more of white carbon black, kaolin, light calcium carbonate, diatomite, corn starch, quartz sand, talcum powder, ammonium sulfate, sodium chloride, potassium chloride, light calcium and the like;
the antifreezing agent comprises one or more of ethylene glycol, propylene glycol, urea, diethylene glycol, glycerol, etc.;
the thickener comprises one or more of xanthan gum, polyvinyl alcohol, organic bentonite, hydroxymethyl cellulose, magnesium aluminum silicate, etc.
Preferably, the bactericide is wettable powder and consists of the following components in percentage by mass: 0.1% of fructus psoraleae seed extract, 9.9% of prothioconazole, 11% of sodium lignosulfonate, 9% of sodium dodecyl benzene sulfonate and 100% of kaolin;
the bactericide is water dispersible granules and consists of the following components in percentage by mass: 0.1 percent of fructus psoraleae seed extract, 9.9 percent of prothioconazole, 7 percent of alkyl naphthalene sulfonate, 2 percent of sodium dodecyl sulfate, 5 percent of ammonium sulfate and 100 percent of corn starch;
the bactericide is a suspending agent and comprises the following components in percentage by mass: 0.2 percent of fructus psoraleae seed extract, 29.8 percent of prothioconazole, 5 percent of aryl phenol polyoxyethylene succinate sulfonate, 6 percent of nekal, 0.5 percent of organic silicon, 0.1 percent of xanthan gum, 2 percent of ethylene glycol, 0.1 percent of sodium benzoate and deionized water added to 100 percent;
the bactericide is a suspoemulsion and comprises the following components in percentage by mass: 0.2% of fructus psoraleae seed extract, 29.8% of prothioconazole, 8% of alkylaryl polyoxyethylene ether, 6% of wetting penetrant F, 805.5% of tween, 0.4% of silicone oil, 4% of polyvinyl alcohol, 2% of propylene glycol and 100% of deionized water;
the bactericide is a dispersible oil suspending agent and comprises the following components in percentage by mass: 0.2 percent of fructus psoraleae seed extract, 39.8 percent of prothioconazole, 6 percent of calcium dodecyl benzene sulfonate and 4 percent of nonylphenol polyoxyethylene ether; 6% of fatty alcohol-polyoxyethylene ether, 2% of organic bentonite, 5% of soybean oil and the balance of methyl oleate to 100%.
The composite bactericidal composition or the bactericide is applied to control of fruit tree diseases.
Preferably, the diseases are peach brown rot, grape anthracnose and strawberry gray mold.
Preferably, the method for applying is fruit tree leaf spraying treatment.
Has the advantages that: (1) the psoralea seed extract and the prothioconazole are compounded, so that the composition is reasonable, and the synergistic effect is obvious; (2) the invention combines the fructus psoraleae seed extract and the prothioconazole for use, and the composition is applied to the fruit trees by a spraying method, so that brown rot, anthracnose, gray mold and the like can be prevented and treated.
Detailed Description
First, sample preparation
Example 1: 0.1% of fructus psoraleae seed extract, 9.9% of prothioconazole, 11% of sodium lignosulfonate, 9% of sodium dodecyl benzene sulfonate and 100% of kaolin are added, and the mixture is subjected to air flow grinding to prepare 10% of fructus psoraleae seed extract-prothioconazole wettable powder.
Example 2: 0.1% of fructus psoraleae seed extract, 9.9% of prothioconazole, 7% of alkyl naphthalene sulfonate, 2% of sodium dodecyl sulfate, 5% of ammonium sulfate and 100% of corn starch are added and mixed to prepare 10% of fructus psoraleae seed extract prothioconazole water dispersible granules.
Example 3: 0.2% of fructus psoraleae seed extract, 29.8% of prothioconazole, 5% of aryl phenol polyoxyethylene succinate sulfonate, 6% of nekal, 0.5% of organic silicon, 0.1% of xanthan gum, 2% of ethylene glycol, 0.1% of sodium benzoate and 100% of deionized water, and mixing to obtain 30% of fructus psoraleae seed extract-prothioconazole suspension.
Example 4: 0.2 percent of fructus psoraleae seed extract, 29.8 percent of prothioconazole, 8 percent of alkylaryl polyoxyethylene ether, 6 percent of wetting penetrant F, 805.5 percent of tween, 0.4 percent of silicone oil, 4 percent of polyvinyl alcohol, 2 percent of propylene glycol and 100 percent of deionized water are added and mixed to prepare 30 percent of fructus psoraleae seed extract-prothioconazole suspension emulsion.
Example 5: 0.2% of fructus psoraleae seed extract, 39.8% of prothioconazole, 6% of calcium dodecyl benzene sulfonate, 4% of nonylphenol polyoxyethylene ether, 6% of fatty alcohol polyoxyethylene ether, 2% of organic bentonite, 5% of soybean oil and the balance of methyl oleate to 100%. Mixing to obtain 40% Psoralea corylifolia seed extract-prothioconazole dispersible oil suspending agent.
Second, determination of drug efficacy and drug resistance frequency
Reagent to be tested: the compound bactericide in examples 1-5.
Control agents: 0.2% of fructus psoraleae seed extract microemulsion (control medicament 1) and 30% of prothioconazole dispersible oil suspension (control medicament 2).
And (3) controlling crops: and (5) fruit trees.
Test strains: sclerotinia fructicola (m.fructicola), Colletotrichum gloeosporioides (Colletotrichum gloeosporioides), Botrytis cinerea (Botrytis cinerea Pers.) causing respectively brown rot of peach, anthracnose of grape and gray mold of strawberry. Is separated from an ecological agriculture research room of Zhenjiang agricultural science research institute in Jiangsu hilly area, and is stored in a refrigerator at 4 ℃ for later use. The strain was stored on potato sucrose agar (PDA) slant (4 ℃). After 1 transfer on PDA medium plates in the laboratory, they were pre-incubated at 26 ℃ for 3 days, and 5mm diameter hyphal blocks were taken from the edge of the colonies for determination.
The test method comprises the following steps:
the test is carried out on a clean bench, the monilinia fructicola, the colletotrichum botryoides and the botrytis cinerea are selected, when the contrast bacterial colony grows to about 80% of the diameter of the plate, the diameter of each processed bacterial colony is measured by adopting a cross method, the average value of the diameters of the bacterial colonies is calculated, and the average inhibition rate of the growth of hyphae is calculated according to the following formula:
the concentration of the inhibitor cannot be 10 mg.L by using the Yarden standard and the minimum inhibitory concentration method-1The strains which normally grow on the flat plates of the carbendazim, the prohexadione, the azoxystrobin, the pyraclostrobin, the cyprodinil and the boscalid are determined as sensitive strains and can grow at 10 mg.L-1The strains growing on the carbendazim, prochloraz, azoxystrobin, pyraclostrobin, cyprodinil and boscalid plates are determined as resistant strains; the amount of the active ingredient cannot be in the range of 5 mg.L-1The strain growing normally on the pyrimethanil plate is determined as sensitive strain and can be 5 mg.L-1The strains grown on the pyrimethanil plates of (a) were designated as resistant strains; the content of the active ingredient in the active ingredient is not 0.5 mg.L-1The strain growing normally on the Pythium plate is determined as sensitive strain and can be 0.5 mg.L-1The strain growing on the procymidone plate is determined as a resistant strain; and counting the occurrence frequency of the resistant strains.
Adopting DPS12.0 data processing system to calculate regression equation and EC of each medicament for inhibiting hypha growth of Monilinia fructicola, colletotrichum gloeosporioides and Botrytis cinerea50And its 95% confidence limit.
And compare the bactericidal activity of various agents. The results are shown in Table 1.
Inhibitory Effect of the Table 17 fungicides on mycelial growth of Monilinia fructicola in peach
Inhibition effect of surface 27 fungicides on mycelial growth of botrytis cinerea
Inhibitory Effect of the surface 37 fungicides on mycelial growth of Botrytis cinerea
The results of the indoor measurements in tables 1, 2 and 3 show that the formulations of examples 1, 2, 3, 4 and 5 have excellent indoor inhibitory effects on Monilinia fructicola, Colletotrichum viticola and Botrytis cinerea, and the inhibition effects of examples 3, 4 and 5 are better than those of examples 1 and 2.
TABLE 4 determination of the frequency of resistance of common agents to Botrytis cinerea
Table 4 the results show that: the botrytis cinerea in Jiangsu and Shanghai areas generally has the problem of drug resistance to various bactericides, so prothioconazole and compound products thereof can be selected as substitute products in production.
The field test is carried out in peach gardens, grape gardens (rain sheltering cultivation) and strawberry fields, the peach trees and the grapes are sprayed before bagging, the morbidity of peach brown rot, grape anthracnose and strawberry gray mold is investigated 28 days after the treatment, and the activity of bactericides of various medicaments is compared. The results are shown in Table 5.
TABLE 5 post-dose 28d fungicide control results
The greenhouse test result shows that the compounding of the psoralea seed extract and the prothioconazole has good prevention effect on fruit tree diseases such as peach brown rot, grape anthracnose and strawberry gray mold, the prevention and treatment effects of the three diseases in the examples 3, 4 and 5 are higher than those in the examples 1 and 2, and the compounding ratio of the psoralea seed extract to the prothioconazole is 1:149-199 rather than 1: 99. According to field visual inspection, the crops grow normally within the test dosage range, and no phytotoxicity or abnormal phenomena are generated on the plants, which indicates that the crops are safe for fruit trees.
The test results prove that the bactericide composition containing the psoralea seed extract and the prothioconazole is safe to target crops, and has an obvious synergistic effect compared with a single agent. The bactericide composition can well prevent and treat fruit tree diseases which generate resistance to the existing single bactericide, the prevention effect is obviously increased along with the increase of the dosage, the diseases in the whole growth period of crops can be controlled by one-time application, and the bactericide composition has obvious effect and is environment-friendly, so that the bactericide composition can be used for preventing and treating the fruit tree diseases.
Claims (4)
1. A bactericide containing Psoralea corylifolia seed extract and prothioconazole is characterized in that:
the bactericide is a suspending agent and comprises the following components in percentage by mass:
0.2% of fructus psoraleae seed extract;
29.8% of prothioconazole;
5% of aryl phenol polyoxyethylene succinate sulfonate;
pulling the powder to 6 percent;
0.5 percent of organic silicon;
0.1% of xanthan gum;
0.1 percent of sodium benzoate;
2% of ethylene glycol;
adding deionized water to 100%;
or the bactericide is a suspoemulsion and consists of the following components in percentage by mass:
0.2% of fructus psoraleae seed extract;
39.8% of prothioconazole;
8% of alkylaryl polyoxyethylene ether;
wetting penetrant F6%;
tween 805.5 percent;
0.4 percent of silicone oil;
4% of polyvinyl alcohol;
2% of propylene glycol;
adding deionized water to 100%;
or the bactericide is a dispersible oil suspending agent and comprises the following components in percentage by mass:
0.2% of fructus psoraleae seed extract;
39.8% of prothioconazole;
6% of calcium dodecyl benzene sulfonate;
4% of nonylphenol polyoxyethylene ether;
6 percent of fatty alcohol-polyoxyethylene ether;
2% of organic bentonite;
5% of soybean oil;
methyl oleate makes up 100%.
2. Use of the fungicide according to claim 1 for controlling fruit tree diseases.
3. The use as claimed in claim 2, characterized in that the diseases are peach brown rot, grape anthracnose and strawberry gray mold.
4. The use of claim 2, wherein the method of application is fruit tree leaf spray treatment.
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| CN105875663A (en) * | 2014-11-10 | 2016-08-24 | 重庆市赛欧生态农业有限公司 | Botanical agricultural fungicide |
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| CN105875663A (en) * | 2014-11-10 | 2016-08-24 | 重庆市赛欧生态农业有限公司 | Botanical agricultural fungicide |
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