CN105766935A - Fungicidal composition containing azoxystrobin, difenoconazole and hexaconazole and application thereof - Google Patents
Fungicidal composition containing azoxystrobin, difenoconazole and hexaconazole and application thereof Download PDFInfo
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- CN105766935A CN105766935A CN201610217463.2A CN201610217463A CN105766935A CN 105766935 A CN105766935 A CN 105766935A CN 201610217463 A CN201610217463 A CN 201610217463A CN 105766935 A CN105766935 A CN 105766935A
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- difenoconazole
- hexaconazole
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- fluoxastrobin
- bactericidal composition
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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
- 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
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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
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
- A01N43/54—1,3-Diazines; Hydrogenated 1,3-diazines
Abstract
The invention discloses a fungicidal composition containing azoxystrobin, difenoconazole and hexaconazole and application thereof. With azoxystrobin, difenoconazole and hexaconazole being effective components, the fungicidal composition comprises, by weight, 1-30% of azoxystrobin, 1-25% of difenoconazole and 1-10% of hexaconazole. The composition is good in stability, can effectively bring advantages of the three effective components into full play, has an obvious synergistic effect, and has a prominent effect on prevention and control of almost all fungal diseases in wheat, corn, melons, rice, peanuts and other crops and especially plant diseases caused by basidiomycetes, deuteromycota, oomycetes and ascomycetes. The composition has a wide prevention and control spectrum and meanwhile has protecting and treating effects. In addition, through compounding of azoxystrobin, difenoconazole and hexaconazole, the dosage of effective components can be reduced, resistance to the fungicidal composition by pathogenic bacteria can be delayed, natural enemies are effectively protected, and the fungicidal composition has important economic significance, environmental protection significance and ecological significance for comprehensive prevention and control of pests.
Description
Technical field
The invention discloses a kind of agriculture chemical compounding bactericidal composition, the bactericidal composition of a kind of Fluoxastrobin, Difenoconazole and hexaconazole and application thereof.
Background technology
Fluoxastrobin, it it is methoxy acrylate (Strobilurin) class sterilization pesticide, former medicine outward appearance is off-white color to yellow solid (content is the highest, fineness the best, color the most shallow), there is efficient, wide spectrum feature, it is mainly combined by the Qo site of cytochrome b on mitochondrion, block the electron transfer between cytochrome, suppress mitochondrial breathing to play a role, destroy the energy synthesis of pathogenic bacteria.This product all has good activity to almost all of mycota (Ascomycotina, Basidiomycotina, Mastigomycotina and Deuteromycotina) disease such as powdery mildew, rust, banded sclerotial blight etc..
Difenoconazole; being the interior suction wide-spectrum bactericide that in triazole bactericidal agent, safety is higher, have protection and therapeutical effect, fungicidal spectrum is wide, the lasting period is long; Difenoconazole is as all of triazole bactericidal agent, it is possible to the biosynthesis of the ergosterol of suppression fungus.Former medicine is grayish white powdery thing, fusing point 78.6 DEG C, is widely used in the crop such as fruit tree, vegetable, can effectively prevent and treat the diseases such as scab, anthrachose of grape and white rot.
Hexaconazole, sterol demethylation inhibitors, former medicine is ecru loose powder, and the disease causing fungus especially Basidiomycota and Ascomycota has protection and the therapeutical effect of broad spectrum activity.Hexaconazole is mainly passed through to destroy and stop the biosynthesis of the cell membrane important composition composition ergosterol of pathogenic bacteria, cause cell membrane not formed, so that pathogenic bacteria is dead, has interior suction, protection and therapeutic activity.
Research finds, various plants pathogenic bacteria has created resistance, continuous administration more than 2 times, has been decreased obviously the prevention effect of harmful organism Fluoxastrobin；And after using Fluoxastrobin and Difenoconazole complex preparation, prevention effect is obviously improved.Therefore, agriculture chemical compounding is possible not only to delay harmful organism generation drug-fast to pesticide, Protect natural enemies effectively, and has new potentiation.At present, the relevant report of the complex preparation of Fluoxastrobin, Difenoconazole and this three of hexaconazole is had no.
Summary of the invention
It is an object of the invention to provide the bactericidal composition of a kind of Fluoxastrobin, Difenoconazole and hexaconazole, said composition both ensure that chemical stability and the physical behavior of Fluoxastrobin, Difenoconazole and hexaconazole, delay again the harmful organism development to pesticide resistance, and in field control effectiveness test, shown excellent potentiation, it is the agriculture chemical compounding product of a kind of excellence.
The technical solution used in the present invention is as follows:
A kind of bactericidal composition, this bactericidal composition effective ingredient is Fluoxastrobin, Difenoconazole and hexaconazole, and Fluoxastrobin, Difenoconazole and the hexaconazole weight percentage in bactericidal composition is: Fluoxastrobin 1-30%, Difenoconazole 1-25%, hexaconazole 1-10%.
Further, in this bactericidal composition, the mass ratio of Fluoxastrobin, Difenoconazole and hexaconazole is 1-8:1-6:1, preferably 3.93-4.1:2.47-2.55:1.
Further, in this bactericidal composition, three kinds of effective ingredient summations content in bactericidal composition is 9-50wt%, preferably at 30-35wt%.
Further, in this bactericidal composition, also including auxiliary agent in addition to effective ingredient, described auxiliary agent is wetting agent, dispersant, defoamer, antifreezing agent, thickening agent and preservative, and the content of auxiliary agent is the 1-30wt% of bactericidal composition, such as 7-25%, 15-25%.
Further, this bactericidal composition dosage form can be pesticide suspension concentrate (SC).
Further, the invention provides bactericidal composition dosage form is formula during pesticide suspension concentrate, each composition weight percentage composition is: Fluoxastrobin 1-30%, Difenoconazole 1-25%, hexaconazole 1-10%, wetting agent 1-3%, dispersant 1-10%, defoamer 0.1-0.5%, antifreezing agent 3-10%, thickening agent 0.5-5%, preservative 0.1-0.5%, surplus are water, and each composition sum is 100%.
Preferably, in pesticide suspension concentrate, the weight percentage of each component is preferably: Fluoxastrobin 17.7%, Difenoconazole 11.1%, hexaconazole 4.4%, wetting agent 1.5%, dispersant 5%, defoamer 0.3%, antifreezing agent 5%, thickening agent 2.2%, preservative 0.2%, surplus are water, and each composition sum is 100%.
In above-mentioned pesticide suspension concentrate, described wetting agent be alkylbenzenesulfonate, aliphatic alcohol sulfate, alkylnaphthalene sulfonate condensation polymer, isopropyl naphthalene sulfonate, alkylphenol-polyethenoxy base ether, to any one or more in methoxyl group fatty acyl amido benzene sulfonic acid sodium salt and sodium lauryl sulphate.
In above-mentioned pesticide suspension concentrate, described dispersant is any one or more in naphthalenesulfonate formaldehyde condensation compound, alkylamide polyoxyethylene ether, polycarboxylate sodium, lignosulfonates, alkylphenol polyoxyethylene, polyoxyethylene polyoxypropylene block copolymer, alkylpolyoxyethylene phosphate ester and double isopropyl naphthalene sulfonate.
In above-mentioned pesticide suspension concentrate, described defoamer is organosiloxane, the fatty acid ester compounded thing of higher alcohols, organosilicon ketone, C8-C10Fatty alcohol and C10-C20Any one in representative examples of saturated aliphatic carboxylic and ester thereof.
In above-mentioned pesticide suspension concentrate, described antifreezing agent is any one or more in propylene glycol, ethylene glycol, diethylene glycol, glycerol, glycerol ether diglycol and methyl trimethylene diglycol.
In above-mentioned pesticide suspension concentrate, described thickening agent is any one or more in carboxymethyl cellulose, xanthan gum, bentonite, white carbon and aluminium-magnesium silicate.
In above-mentioned pesticide suspension concentrate, described preservative is any one in paraformaldehyde, Kazon, sodium benzoate and potassium sorbate.
Further, in above-mentioned pesticide suspension concentrate, described wetting agent preferably isopropyl naphthalene sulfonate and sodium lauryl sulphate 2:1 in mass ratio mix；Described dispersant preferably naphthalenesulfonate formaldehyde condensation compound and polycarboxylate sodium 3:2 in mass ratio mix；Described defoamer is preferably organosilicon ketone；Described antifreezing agent preferably ethylene glycol and glycerol 1:1 in mass ratio mix；Described thickening agent preferably xanthan gum and aluminium-magnesium silicate 1:10 in mass ratio mix；Described preservative is preferably Kazon.
The preparation method of above-mentioned pesticide suspension concentrate comprises the following steps:
(1) by uniform through high speed shear after the mixing of water, wetting agent, dispersant, defoamer and preservative；
(2) the most load weighted effective ingredient Fluoxastrobin, Difenoconazole and hexaconazole joined in the mixed liquor that step (1) obtains and use dispersion impeller to be uniformly dispersed；
(3) mixture step (2) obtained puts into the size needing often to detect material during carrying out sand milling, sand milling in horizontal sand mill, and sand milling to size is 2-5 μm；
(4) load weighted thickening agent is added mix homogeneously in antifreezing agent to, in the mixture that addition to above-mentioned steps (3) obtains, through high speed shear mix homogeneously, prepare the suspending agent product of the present composition.
The test of pesticide effectiveness shows, bactericidal composition of the present invention has a good bactericidal effect to multiple pathogenic bacteria, and therefore the present invention is also carried out protection for the application in preventing and treating crop fungal disease of this bactericidal composition.
Further, when bactericidal composition is used for crop fungal disease protection, described crop includes Semen Tritici aestivi, Semen Maydis, Citrullus vulgaris, Oryza sativa L. and Semen arachidis hypogaeae etc..
Further, when bactericidal composition is used for crop fungal disease preventing and treating, its controlling object is fungus-caused disease, especially the microbial disease of basidiomycetes, Fungi Imperfecti, oomycetes and ascus.
The present invention is with Fluoxastrobin, Difenoconazole and hexaconazole as effective ingredient; they are compounded and makes bactericidal composition; said composition good stability; can effectively play the advantage of three kinds of effective ingredient; having obvious potentiation, to the nearly all fungus in Semen Tritici aestivi, Semen Maydis, Citrullus vulgaris, Oryza sativa L. and peanut and other crops, especially microbial to basidiomycetes, Fungi Imperfecti, oomycetes and ascus control of plant disease is remarkably productive; the preventing and treating spectrum of said composition is relatively wide, has protection and therapeutical effect simultaneously.Additionally, the compounding using dosage that can also reduce effective ingredient of this three, having delayed pathogen that it is produced resistance, be effectively protected natural enemy, the integrated control for harmful organism has important economic implications, environment protection significance and ecological significance.
Detailed description of the invention
Below in conjunction with specific embodiment, the invention will be further described.Illustrate, merely to explain the present invention, its content not to be defined.Each composition used by the present invention all can have been bought in the market.
In following embodiment, if no special instructions, each component content is weight percentage.
Embodiment
1
Pesticidal aqueous suspension agent prescription is: effective ingredient 33.2%(17.7% Fluoxastrobin, 11.1% Difenoconazole, 4.4% hexaconazole), wetting agent isopropyl naphthalene sulfonate 1%, sodium lauryl sulphate 0.5%, dispersant naphthalenesulfonate formaldehyde condensation compound 3%, polycarboxylate sodium 2%, defoamer organosilicon ketone 0.3%, antifreeze glycol 2.5%, glycerol 2.5%, thickening agent xanthan gum 0.2%, aluminium-magnesium silicate 2%, Preservative Kathon CG(Methylchloroisothiazolinone/Methylisothiazolinone combination) 0.2%, add water and supply 100%.
Preparation method is:
(1) according to above-mentioned formula by uniform through high speed shear after the mixing of the water being pre-metered, wetting agent, dispersant, defoamer and preservative；
(2) the most load weighted effective ingredient Fluoxastrobin, Difenoconazole and hexaconazole joined in the mixed liquor that step (1) obtains and use dispersion impeller to be uniformly dispersed；
(3) mixture step (2) obtained puts into the size needing often to detect material during carrying out sand milling, sand milling in horizontal sand mill, and sand milling to size is 2-5 μm；
(4) load weighted thickening agent is added mix homogeneously in antifreezing agent to, in the mixture that addition to above-mentioned steps (3) obtains, through high speed shear mix homogeneously, prepare the aqueous suspension agent product of the present composition.
Embodiment
2
Pesticidal aqueous suspension agent prescription is: effective ingredient 33.2%(24.4% Fluoxastrobin, 4.4% Difenoconazole, 4.4% hexaconazole), wetting agent isopropyl naphthalene sulfonate 1%, sodium lauryl sulphate 0.5%, dispersant naphthalenesulfonate formaldehyde condensation compound 3%, polycarboxylate sodium 2%, defoamer organosilicon ketone 0.3%, antifreeze glycol 2.5%, glycerol 2.5%, thickening agent xanthan gum 0.2%, aluminium-magnesium silicate 2%, Preservative Kathon CG(Methylchloroisothiazolinone/Methylisothiazolinone combination) 0.2%, add water and supply 100%.
Preparation method is with embodiment 1.
Embodiment
3
Pesticidal aqueous suspension agent prescription is: effective ingredient 33.2%(17.7% Fluoxastrobin, 13.3% Difenoconazole, 2.2% hexaconazole), wetting agent isopropyl naphthalene sulfonate 1%, sodium lauryl sulphate 0.5%, dispersant naphthalenesulfonate formaldehyde condensation compound 3%, polycarboxylate sodium 2%, defoamer organosilicon ketone 0.3%, antifreeze glycol 2.5%, glycerol 2.5%, thickening agent xanthan gum 0.2%, aluminium-magnesium silicate 2%, Preservative Kathon CG(Methylchloroisothiazolinone/Methylisothiazolinone combination) 0.2%, add water and supply 100%.
Preparation method is with embodiment 1.
Embodiment
4
Pesticidal aqueous suspension agent prescription is: effective ingredient 49.8%(26.6% Fluoxastrobin, 16.6% Difenoconazole, 6.6% hexaconazole), wetting agent isopropyl naphthalene sulfonate 1%, sodium lauryl sulphate 0.5%, dispersant naphthalenesulfonate formaldehyde condensation compound 3%, polycarboxylate sodium 2%, defoamer organosilicon ketone 0.3%, antifreeze glycol 2.5%, glycerol 2.5%, thickening agent xanthan gum 0.2%, aluminium-magnesium silicate 2%, Preservative Kathon CG(Methylchloroisothiazolinone/Methylisothiazolinone combination) 0.2%, add water and supply 100%.
Preparation method is with embodiment 1.
Embodiment
5
Pesticidal aqueous suspension agent prescription is: effective ingredient 9.9%(2.2% Fluoxastrobin, 5.5% Difenoconazole, 2.2% hexaconazole), wetting agent isopropyl naphthalene sulfonate 1%, sodium lauryl sulphate 0.5%, dispersant naphthalenesulfonate formaldehyde condensation compound 3%, polycarboxylate sodium 2%, defoamer organosilicon ketone 0.3%, antifreeze glycol 2.5%, glycerol 2.5%, thickening agent xanthan gum 0.2%, aluminium-magnesium silicate 2%, Preservative Kathon CG(Methylchloroisothiazolinone/Methylisothiazolinone combination) 0.2%, add water and supply 100%.
Preparation method is with embodiment 1.
Embodiment
6
Pesticidal aqueous suspension agent prescription is: effective ingredient 33.2%(17.7% Fluoxastrobin, 11.1% Difenoconazole, 4.4% hexaconazole), wetting agent alkylbenzenesulfonate 1%, alkylphenol-polyethenoxy base ether 2%, dispersant lignosulfonates 5%, alkylphenol polyoxyethylene 4%, defoamer organosiloxane 0.1%, antifreezing agent propylene glycol 5%, diethylene glycol 2.5%, thickening agent xanthan gum 0.2%, white carbon 4.8%, preservative paraformaldehyde 0.4%, add water and supply 100%.
Preparation method is with embodiment 1.
Embodiment
7
Pesticidal aqueous suspension agent prescription is: effective ingredient 33.2%(17.7% Fluoxastrobin, 11.1% Difenoconazole, 4.4% hexaconazole), wetting agent aliphatic alcohol sulfate 1%, dispersant alkylamide polyoxyethylene ether 10%, the fatty acid ester compounded thing of defoamer higher alcohols 0.5%, antifreezing agent glycerol ether diglycol 10%, thickening agent carboxymethyl cellulose 4%, preservative sodium benzoate 0.5%, add water and supply 100%.
Preparation method is with embodiment 1.
Embodiment
8
Pesticidal aqueous suspension agent prescription is: effective ingredient 33.2%(17.7% Fluoxastrobin, 11.1% Difenoconazole, 4.4% hexaconazole), wetting agent alkylnaphthalene sulfonate condensation polymer 1.8%, to methoxyl group fatty acyl amido benzene sulfonic acid sodium salt 0.3%, dispersant polyoxyethylene polyoxypropylene block copolymer 0.5%, double isopropyl naphthalene sulfonate 0.5%, defoamer C8-C10Fatty alcohol 0.25%, antifreezing agent methyl trimethylene diglycol 3%, thickening agent bentonite 0.5%, potassium sorbate preservative 0.25%, add water and supply 100%.
Preparation method is with embodiment 1.
Embodiment
9
Pesticidal aqueous suspension agent prescription is: effective ingredient 33.2%(17.7% Fluoxastrobin, 11.1% Difenoconazole, 4.4% hexaconazole), wetting agent isopropyl naphthalene sulfonate 1%, alkylbenzenesulfonate 1%, dispersant alkylpolyoxyethylene phosphate ester 2.4%, polycarboxylate sodium 4.7%, defoamer C10-C20Representative examples of saturated aliphatic carboxylic and ester 0.25%, antifreeze glycol 2.5%, methyl trimethylene diglycol 3%, thickening agent xanthan gum 0.2%, carboxymethyl cellulose 2.6%, Preservative Kathon CG(Methylchloroisothiazolinone/Methylisothiazolinone combination) 0.1%, add water and supply 100%.
Preparation method is with embodiment 1.
Embodiment
10
Pesticidal aqueous suspension agent prescription is: effective ingredient 33.2%(17.7% Fluoxastrobin, 11.1% Difenoconazole, 4.4% hexaconazole), wetting agent isopropyl naphthalene sulfonate 1%, sodium lauryl sulphate 0.5%, aliphatic alcohol sulfate 1.5%, dispersant naphthalenesulfonate formaldehyde condensation compound 3%, polycarboxylate sodium 2%, double isopropyl naphthalene sulfonate 4.2%, defoamer organosilicon ketone 0.25%, antifreeze glycol 5%, thickening agent xanthan gum 0.2%, carboxymethyl cellulose 0.3%%, Preservative Kathon CG(Methylchloroisothiazolinone/Methylisothiazolinone combination) 0.25%, add water and supply 100%.
Preparation method is with embodiment 1.
Properties of product are tested
The pesticide suspension concentrate of embodiment 1-10 gained is carried out properties of product test, foaming characteristic reference standard: CIPAC
MT47.1, CIPAC MT47.2, suspensibility reference standard: CIPAC MT15, CIPAC
MT168, heat storage stability reference standard: GB/T 19136-2003, cold storage stability reference standard: GB/T 19137-2003, the results are shown in Table 1.
The product of embodiment 1-3 is in addition to effective ingredient proportioning difference, and other are identical, from data it can be seen that the change of effective ingredient proportioning is little to the performance impact of aqueous suspension agent, and products obtained therefrom good quality, stable performance, reliable.There is difference in the product of embodiment 1,4,5 on effective ingredient content, from data it can be seen that the C aqueous suspension rate of too high levels product reduces, viscosity increases, and performance is under some influence.
Embodiment 6-10 uses not preferred auxiliary agent, and products obtained therefrom is good quality equally, and properties of product are stable, reliable, meets the test request of the relevant performance of suspending agent, but C aqueous suspension rate decreases compared with Example 1.
The test of pesticide effectiveness
The Fluoxastrobin of the present invention, Difenoconazole are with hexaconazole compounds suspending agent relatively Fluoxastrobin, Difenoconazole compounds suspending agent and has more preferable bactericidal effect.Above-described embodiment of the test of pesticide effectiveness to(for) rice sheath blight disease, watermelon anthrax, wheat leaf rust and the cercospora brown spot of peanut is set forth below, with 32.5% Fluoxastrobin difenoconazole suspending agent, (A meter Miao receives simultaneously, first just reach), (generation is high for 10% difenoconazole water dispersible granule, first just reach) and 25% Fluoxastrobin suspending agent (Amici reaches, first just reach) as comparison, the advantage that the present composition is described.
The rice sheath blight disease test of pesticide effectiveness:
This test arrangement is carried out in village on the sunny side, Liang Baosi town, Jiaxiang County, Jining City, and test uses randomized block design, plot area 32m2, in booting latter stage of Oryza sativa L. and each dispenser of full heading time 1 time, spraying equipment is Singapore's profit agriculture 16L knapsack sprayer, and before and after dispenser, 24h is fine, all without rainfall.Applying medicine is each embodiment medicament and comparison medicament, arranges clear water blank simultaneously.Investigating disease index radix before first time dispenser, after second time, 30d carries out the 2nd investigation, and investigation uses five point samplings, and every some investigation 30 strains, according to following standard recording incidence.
0 grade: Herb is anosis；
1 grade: quaterfoil and the morbidity of following sheath blade thereof；
3 grades: third blade and the morbidity of following sheath blade thereof；
5 grades: second blade and the morbidity of following sheath blade thereof；
7 grades: sword-like leave blade and the morbidity of following sheath blade thereof；
9 grades: Herb falls ill, the most withered.
Disease index computational methods:
Each medicament see table 2 to the prevention effect of rice sheath blight disease.
Watermelon anthrax is tested:
This test arrangement is carried out in little Lou village, Yao Gou town, Changyue County of Weifang City, and test uses randomized block design, plot area 25m2, in watermelon growing mid-term, watermelon anthrax their early stage carries out dispenser.Applying medicine is each embodiment medicament and comparison medicament, arranges clear water blank simultaneously.Investigating state of an illness radix before dispenser, after dispenser, 10d carries out the 2nd Disease investigation, and records corresponding disease index, and spraying equipment is Singapore's profit agriculture 16L knapsack sprayer, and before and after dispenser, 24h is fine, all without rainfall.During investigation, each community random searching 15 is climing, the most climing from top the 5th several 10 leaves of leaf, 150 leaves altogether, the corresponding sick number of sheets of record and sick progression, severity Scaling method is as follows:
0 grade: without scab；
1 grade: lesion area accounts for less than the 5% of whole blade area；
3 grades: lesion area accounts for the 6% ~ 10% of whole blade area；
5 grades: lesion area accounts for the 11% ~ 25% of whole blade area；
7 grades: lesion area accounts for the 26% ~ 50% of whole blade area；
9 grades: lesion area accounts for more than the 50% of whole blade area.
Disease index and the same rice sheath blight disease of preventive effect computational methods, experimental result see table 3.
Wheat leaf is embroidered disease and is tested:
In economic and technological development zone, strand, Weifang, Shandong, hollow river bend village, street is carried out this test arrangement, and test uses randomized block design, plot area 666.7m2, starting medication at the initial stage that disease occurs, spraying equipment is Singapore's profit agriculture 16L knapsack sprayer, and before and after dispenser, 24h is fine, all without rainfall.Applying medicine is each embodiment medicament and comparison medicament, arranges clear water blank simultaneously.Investigating the radix of disease before medication, interval 7d sprays a medicine, and after second time spray medicine, 14d investigates state of an illness result, investigation uses 5 point samplings, every some investigation 20 strains, 3, top of every strain investigation leaf, account for the percentage rate classification of whole leaf area with lesion area on every leaf, grade scale is as follows:
0 grade: without scab；
1 grade: lesion area accounts for less than the 5% of whole blade area；
3 grades: lesion area accounts for the 6% ~ 10% of whole blade area；
5 grades: lesion area accounts for the 11% ~ 25% of whole blade area；
7 grades: lesion area accounts for the 26% ~ 50% of whole blade area；
9 grades: lesion area accounts for more than the 50% of whole blade area.
Disease index and the same rice sheath blight disease of preventive effect computational methods, experimental result see table 4.
The cercospora brown spot of peanut is tested:
In economic and technological development zone, strand, Weifang, Shandong, hollow river bend village, street is carried out this test arrangement, and test uses randomized block design, plot area 333.3m2, starting medication at the initial stage that disease occurs, spraying equipment is Singapore's profit agriculture 16L knapsack sprayer, and before and after dispenser, 24h is fine, all without rainfall.Applying medicine is each embodiment medicament and comparison medicament, arranges clear water blank simultaneously.Investigating the radix of disease before medication, interval 10d sprays a medicine, and after second time spray medicine, 10d investigates state of an illness result, investigation uses 5 point samplings, every some investigation 10 strains, every strain investigation 5 blades of stem, account for the percentage rate classification of whole leaf area with lesion area on every leaf, grade scale is as follows:
0 grade: without scab；
1 grade: lesion area accounts for less than the 5% of whole blade area；
3 grades: lesion area accounts for the 6% ~ 25% of whole blade area；
5 grades: lesion area accounts for the 26% ~ 50% of whole blade area；
7 grades: lesion area accounts for the 51% ~ 75% of whole blade area；
9 grades: lesion area accounts for more than the 76% of whole blade area.
Disease index and the same rice sheath blight disease of preventive effect computational methods, experimental result see table 5.
Found by above-mentioned test, the bactericidal composition using the present invention is prominent for rice sheath blight disease, watermelon anthrax, wheat leaf rust and cercospora brown spot of peanut prevention effect, its preventive effect will be apparently higher than contrast agents, and for plant growth safety, have no adverse effects generation.
Claims (10)
1. a bactericidal composition, it is characterized in that: effective ingredient is Fluoxastrobin, Difenoconazole and hexaconazole, Fluoxastrobin, Difenoconazole and the hexaconazole weight percentage in bactericidal composition is: Fluoxastrobin 1-30%, Difenoconazole 1-25%, hexaconazole 1-10%.
Bactericidal composition the most according to claim 1, is characterized in that: the mass ratio of Fluoxastrobin, Difenoconazole and hexaconazole is 1-8:1-6:1, preferably 3.93-4.1:2.47-2.55:1.
Bactericidal composition the most according to claim 1 and 2, is characterized in that: also including that auxiliary agent, described auxiliary agent are wetting agent, dispersant, defoamer, antifreezing agent, thickening agent and preservative, the content of auxiliary agent is 1-30wt%.
4. according to the bactericidal composition described in claim 1,2 or 3, it is characterized in that: dosage form is pesticide suspension concentrate.
Bactericidal composition the most according to claim 4, it is characterized in that: when dosage form is pesticide suspension concentrate, each composition weight percentage composition is: Fluoxastrobin 1-30%, Difenoconazole 1-25%, hexaconazole 1-10%, wetting agent 1-3%, dispersant 1-10%, defoamer 0.1-0.5%, antifreezing agent 3-10%, thickening agent 0.5-5%, preservative 0.1-0.5%, surplus are water.
Bactericidal composition the most according to claim 5, is characterized in that: each composition weight percentage composition is: Fluoxastrobin 17.7%, Difenoconazole 11.1%, hexaconazole 4.4%, wetting agent 1.5%, dispersant 5%, defoamer 0.3%, antifreezing agent 5%, thickening agent 2.2%, preservative 0.2%, surplus are water.
7. according to the bactericidal composition described in claim 5 or 6, it is characterized in that: the content sum of Fluoxastrobin, Difenoconazole and hexaconazole is 9-50wt%.
8., according to the bactericidal composition described in claim 5 or 6, it is characterized in that: described wetting agent be alkylbenzenesulfonate, aliphatic alcohol sulfate, alkylnaphthalene sulfonate condensation polymer, isopropyl naphthalene sulfonate, alkylphenol-polyethenoxy base ether, to any one or more in methoxyl group fatty acyl amido benzene sulfonic acid sodium salt and sodium lauryl sulphate；Described dispersant is any one or more in naphthalenesulfonate formaldehyde condensation compound, alkylamide polyoxyethylene ether, polycarboxylate sodium, lignosulfonates, alkylphenol polyoxyethylene, polyoxyethylene polyoxypropylene block copolymer, alkylpolyoxyethylene phosphate ester and double isopropyl naphthalene sulfonate；Described defoamer is organosiloxane, the fatty acid ester compounded thing of higher alcohols, organosilicon ketone, C8-C10Fatty alcohol and C10-C20Any one in representative examples of saturated aliphatic carboxylic and ester thereof；Described antifreezing agent is any one or more in propylene glycol, ethylene glycol, diethylene glycol, glycerol, glycerol ether diglycol and methyl trimethylene diglycol；Described thickening agent is any one or more in carboxymethyl cellulose, xanthan gum, bentonite, white carbon and aluminium-magnesium silicate；Described preservative is any one in paraformaldehyde, Kazon, sodium benzoate and potassium sorbate.
Bactericidal composition the most according to claim 8, is characterized in that: described wetting agent is isopropyl naphthalene sulfonate and sodium lauryl sulphate 2:1 in mass ratio mixes；Described dispersant is naphthalenesulfonate formaldehyde condensation compound and polycarboxylate sodium 3:2 in mass ratio mixes；Described defoamer is organosilicon ketone；Described antifreezing agent is ethylene glycol and glycerol 1:1 in mass ratio mixes；Described thickening agent is xanthan gum and aluminium-magnesium silicate 1:10 in mass ratio mixes；Described preservative is Kazon.
10. the application in preventing and treating crop fungal disease of the bactericidal composition according to any one of claim 1-9, is characterized in that: described crop includes Oryza sativa L., Semen Tritici aestivi, Semen Maydis, Citrullus vulgaris or Semen arachidis hypogaeae.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610217463.2A CN105766935B (en) | 2016-04-08 | 2016-04-08 | A kind of bactericidal composition and its application of Fluoxastrobin, difenoconazole and hexaconazole |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111771715A (en) * | 2020-07-16 | 2020-10-16 | 吉林省农业科学院 | Comprehensive technology for improving peanut hybridization efficiency |
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| CN101911940A (en) * | 2010-09-08 | 2010-12-15 | 吴元林 | Germicide compounded from azoxystrobin, difenoconazole and cyproconazole and preparation method thereof |
| CN101584323B (en) * | 2009-04-15 | 2012-06-27 | 陕西蒲城县美邦农药有限责任公司 | Azoxystrobin and hexaconazole-containing antiseptic composition |
| CN102669111A (en) * | 2012-05-24 | 2012-09-19 | 利民化工股份有限公司 | Suspending agent formulated by difenoconazole and azoxystrobin and preparation method thereof |
| CN102057912B (en) * | 2010-12-19 | 2013-04-17 | 惠州市银农科技有限公司 | Water suspending agent mixed by difenoconazole and azoxystrobin and preparation method thereof |
| WO2015062358A1 (en) * | 2013-10-30 | 2015-05-07 | Rotam Agrochem International Company Limited | Method of increasing yield by treating with fungicidal compositions |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101584323B (en) * | 2009-04-15 | 2012-06-27 | 陕西蒲城县美邦农药有限责任公司 | Azoxystrobin and hexaconazole-containing antiseptic composition |
| CN101911940A (en) * | 2010-09-08 | 2010-12-15 | 吴元林 | Germicide compounded from azoxystrobin, difenoconazole and cyproconazole and preparation method thereof |
| CN102057912B (en) * | 2010-12-19 | 2013-04-17 | 惠州市银农科技有限公司 | Water suspending agent mixed by difenoconazole and azoxystrobin and preparation method thereof |
| CN102669111A (en) * | 2012-05-24 | 2012-09-19 | 利民化工股份有限公司 | Suspending agent formulated by difenoconazole and azoxystrobin and preparation method thereof |
| WO2015062358A1 (en) * | 2013-10-30 | 2015-05-07 | Rotam Agrochem International Company Limited | Method of increasing yield by treating with fungicidal compositions |
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| CN111771715A (en) * | 2020-07-16 | 2020-10-16 | 吉林省农业科学院 | Comprehensive technology for improving peanut hybridization efficiency |
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