Background technology
Jamaicin be quaternary amine type isoquinoline alkaloid, be primarily present in the ranunculaceae plant coptis, rutaceae cork tree,
In Berberidaceae plant barberry.It prevents canker of apple fruit, ring spot, cucumber downy mildew, squash marble dust, graw mold of tomato, tea
The multiple diseases such as leaf moire blight, Phytophthora capsici disease have preferable control effect;Indoor biometrics and field efficacy measurement result
Show that jamaicin has good control effect to early blight of tomato, pepper anthracnose, graw mold of tomato, powdery mildew of cucumber etc.
Biphenyl pyrrole bacterium amine is a kind of novel SDI pyrazoles series bactericidal agents, and Bixafen is developed by Beyer Co., Ltd, which is amber
Amber dehydrogenase inhibitor, the mechanism of action is novel, is developed primarily for the prevention of leaf spot and leaf rust, but by studying table
Bright, which has excellent activity, such as powdery mildew, gray mold, downy mildew to a variety of germs,
When fungicide is used alone, bactericidal effect spectrum is narrow, and dosage is big, and the longevity of residure is short, easy tos produce drug resistance.In order to gram
Above-mentioned shortcoming is taken, the present inventor screens by further investigation, it has unexpectedly been found that mixing jamaicin and biphenyl pyrrole bacterium amine makes
With with unexpected synergistic effect;And there is no the reports that jamaicin and biphenyl pyrrole bacterium amine are used in compounding in the prior art.
Invention content
The purpose of invention be propose it is a kind of with synergistic function, use cost is low, preventive effect is good contains jamaicin and connection
The bactericidal composition of benzene pyrrole bacterium amine.
Technical solution provided by the invention is as follows:
A kind of bactericidal composition containing jamaicin and biphenyl pyrrole bacterium amine, microbicide compositions effective active composition jamaicin with
The weight ratio of biphenyl pyrrole bacterium amine is 1:40-40:1.
Bactericidal composition its Berberine of the present invention containing jamaicin and biphenyl pyrrole bacterium amine and biphenyl pyrrole bacterium amine
Weight ratio is preferably 1:20-20:1, it is more preferably 1:5-5:1.
Bactericidal composition of the present invention containing jamaicin and biphenyl pyrrole bacterium amine, wherein effective active composition content account for always
The 10-80% of weight.
Bactericidal composition of the present invention containing jamaicin and biphenyl pyrrole bacterium amine, wherein effective active composition content account for always
The 20-60% of weight.
Bactericidal composition of the present invention containing jamaicin and biphenyl pyrrole bacterium amine can be combined with agriculturally customary adjuvant to be made
With being prepared into agriculturally useful formulations, it is preferred that microbicide compositions be made wettable powder, water dispersible granules, suspending agent,
Aqueous emulsion, microemulsion etc..
Further, the pesticidal preparations auxiliary element includes carrier and auxiliary agent.The carrier is in water, solvent or filler
One kind, two kinds or three kinds, water is preferably deionized water;The auxiliary agent includes at least a kind of surfactant, according to different
Other functional aids such as antifreezing agent, thickener, stabilizer, disintegrant, antifoaming agent can be also added in use occasion and demand,
His functional aid is one or more in antifreezing agent, thickener, stabilizer, disintegrant or antifoaming agent.
The solvent is selected from vegetable oil, n,N-Dimethylformamide, methanol, ethyl alcohol, ethylene glycol, propylene glycol, n-butanol, second
Glycol butyl ether, acetone, cyclohexanone, N-Methyl pyrrolidone, toluene, dimethylbenzene, ethyl acetate, dimethylacetylamide, three ethyl alcohol
One or more of amine, acetonitrile, isopropylamine, methyl oleate etc..
The filler is in kaolin, diatomite, bentonite, attapulgite, white carbon, starch or precipitated calcium carbonate
The mixture of one or more compositions.
The surfactant is one or more in emulsifier, dispersant, wetting agent or bleeding agent.Above-mentioned surface
Activating agent is the single dose or complex preparation of common nonionic surfactant or anion surfactant.
The emulsifier is selected from OP series phosphate (thermally coupled distillation columns), 600# phosphate (phenyl phenols
Polyoxyethylene ether phosphate), styrene polyoxyethylene ether ammonium sulfate salt, alkyl biphenyl ether disulfonic acid magnesium salts, triethanolamine salt, agriculture
Newborn 400# (benzyl dimethyl phenol polyoxyethyl ether), Nongru-700 # (alkylphenol-formaldehyde resin polyoxyethyl ether), peaceful breast 36# (benzene
Ethyl fluosite polyoxyethyl ether), agriculture breast 1600# (phenethyl phenol polyoxyethanyl polypropylene-base ether), ethylene oxide-ring
Ethylene Oxide block copolymer, OP serial (nonylphenol polyoxyethylene ether), BY serial (castor oil polyoxyethylene ether), agriculture breast 33# (alkane
Base aryl polyoxyethylene poly-oxygen propylene aether), Span series (sorbitol anhydride monostearate), TWEEN Series (anhydrous sorbitol resin acid
Ester APEO) or one or more of AEO serial (fatty alcohol polyoxyethylene ether) composition mixture.
The dispersant be selected from polycarboxylate, lignosulfonates, APES formaldehyde condensation products sulfat,
Alkyl benzene calcium sulfonate, naphthalene sulfonic acid-formaldehyde condensation product sodium salt, alkyl phenol polyoxyethylene ether, aliphatic amine polyoxyethylene ether, fatty acid polyglycol
The mixture of one or more compositions in ethylene oxide ether or glycerol fatty acid ester polyoxyethylene ethe.
The wetting agent is selected from lauryl sodium sulfate, neopelex, Nekal BX, wetting and penetrating agent F, soap
The mixture of one or more compositions in angle powder, silkworm excrement or spaonin powder.
The bleeding agent is selected from penetrating agent JFC (fatty alcohol polyoxyethylene ether), penetrant t (diisooctyl maleate
Sulfonate), the mixture of azone or one or more compositions in organosilicon.
The thickener is selected from gelatin, sodium carboxymethylcellulose, hydroxyethyl cellulose, Sodium Polyacrylate, modified starch, Huang
The mixture of one or more compositions in virgin rubber, bentonite, silica or aluminum magnesium silicate..
The mixture of one or more compositions of the antifreezing agent in ethylene glycol, propylene glycol, glycerine or urea.
The antifoaming agent is selected from silicone oil, silicone compound, C10~C20 saturated fat acids compound or C8~C10 fat
The mixture of one or more compositions in fat alcohol compound.
The disintegrant is selected from bentonite, urea, ammonium sulfate, aluminium chloride, low-substituted hydroxypropyl cellulose, lactose, lemon
The mixture of acid, succinic acid or one or more compositions in sodium bicarbonate.
The stabilizer is selected from epoxidized soybean oil, one kind in epoxychloropropane, BHT, ethyl acetate or triphenyl phosphate
Or the mixture of a variety of compositions.
Bactericidal composition of the present invention containing jamaicin and biphenyl pyrrole bacterium amine is used to prevent the purposes of crop disease.It is excellent
It is selected to prevention downy mildew, powdery mildew, banded sclerotial blight etc. disease.
Compared with prior art, the present invention has the advantages that:
Present composition effective active composition jamaicin and biphenyl pyrrole bacterium amine belong to the sterilization of two kinds of different role mechanism
Agent, the mutual mixture of the two not will produce conflict;The present composition has good synergistic effect, preventive effect to be higher than in a certain range
Single dose, dosage are small.
1 jamaicin of embodiment and biphenyl pyrrole bacterium amine compound the Toxicity Determination to cucumber downy mildew
Subjects:Bacterium of downy mildew of cucumber
This experiment is using (the experiment reference of cucumber downy mildew potting measuring method《Pesticide bioassay technology》(old spring chief editor,
Publishing house of Beijing Agricultural University publishes) and《Farm-chemical indoor determination test rule NY/T1156.2-2006》.It is tried in preparation
On the basis of testing, 2 leaf periods, the consistent melon seedling of growing way are selected, tag number is write with permanent pen, is inserted into potting cucumber seedling
It in basin, sequentially discharges, using foliar spray method, medicament is sprayed on melon seedling blade, material will be tried after spraying treatment in draught cupboard
Or it dries in the shade in greenhouse and is inoculated with afterwards for 24 hours.7d investigation prevention effects are cultivated in the greenhouse, and control effect is calculated with disease index, uses DPS
Data processing software is for statistical analysis, calculates the EC50 of each medicament, then presses Sun Yunpei's Method and calculates co-toxicity coefficient (CTC).Tool
Body measurement the results are shown in Table 1.
When CTC≤80, then composition shows as antagonism, and as 80 < CTC < 120, then composition shows as being added and make
With when CTC >=120, then composition shows as synergistic effect.
Survey toxicity index (ATI)=(standard agent EC50/ reagent agent EC50) × 100
Percentage composition+B the medicament toxicity index of A in theoretical toxicity index (TTI)=A medicament toxicity index × mixture × mixed
The percentage composition of B in agent
Co-toxicity coefficient (CTC)=[mixture surveys toxicity index (ATI)/mixtures theoretical toxicity index (TTI)] × 100.
The toxicity test of 1 jamaicin of table and biphenyl pyrrole bacterium amine to cucumber downy mildew
Test result shows that jamaicin and biphenyl pyrrole bacterium amine have synergistic effect to cucumber downy mildew, matches 40:1-1:
When between 40, for co-toxicity coefficient all 120.0 or more, jamaicin and biphenyl pyrrole bacterium amine are 1:5-5:When 1, co-toxicity coefficient all exists
140.0 or more, synergistic effect is notable.
Embodiment two:Jamaicin and biphenyl pyrrole bacterium amine compounding try the field efficacy of rice sheath blight disease
Five processing of experiment setting, often handle 3 repetitions.In the 1st dispenser of rice sheath blight disease early stage, after every 7d
Spray 1 time, continuous spray 2 times, 7d investigates rice sheath blight disease incidence, record diseased plant number and sick series after the 2nd dispenser,
Calculate control effect.
Test medicine:
Medicament 1:30% jamaicin biphenyl pyrrole bacterium amine suspending agent (jamaicin 10%+ biphenyl pyrrole bacterium amine 20%)
Medicament 2:40% jamaicin biphenyl pyrrole bacterium amine suspending agent (jamaicin 30%+ biphenyl pyrrole bacterium amine 10%)
Control 1:30% jamaicin wettable powder;
Control 2:25% biphenyl pyrrole bacterium amine wettable powder
2 jamaicin of table and biphenyl pyrrole bacterium amine compound the field efficacy to rice sheath blight disease
Test medicine |
Extension rate |
Preventive effect (%) |
Medicament 1 |
2000 |
87.4 |
Medicament 2 |
2500 |
85.3 |
Control 1 |
1000 |
66.2 |
Control 2 |
2500 |
62.7 |
Table of field test results are bright:Jamaicin and biphenyl pyrrole bacterium amine compounding are better than list to the control effect of rice sheath blight disease
Agent has synergistic effect.The dosage that active constituent can effectively be lowered, slows down the generation of disease drug resistance.
The foregoing is merely presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with
Modification should all belong to the covering scope of the present invention.