CN104137833A - Complex biological fungicide for preventing and treating wheat scab and application thereof - Google Patents
Complex biological fungicide for preventing and treating wheat scab and application thereof Download PDFInfo
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Abstract
The invention discloses a complex biological fungicide for preventing and treating wheat scab. The complex biological fungicide comprises validamycin A and JS399-19, wherein the weight ratio of the validamycin A to the JS399-19 ranges from 1:20-20:1. The invention further discloses application of the complex biological fungicide in preventing and treating wheat scab. The validamycin A and the JS399-19 in the complex biological fungicide are fungicides with different functional mechanisms and do not have cross-resistance with carbendazim and triadimefon, wherein carbendazim and triadimefon are leading medicine for preventing and treating wheat scab in the past. The complex biological fungicide has the advantages of being wide in bacteriocidal spectrum, high in absorption, good in fast-acting property, long in preserving effect period, environmentally friendly, low in cost and easy to process.
Description
Technical field
The invention belongs to technical field of pesticide, be specifically related to a kind of the prevent and treat biological composite bactericide of wheat scab and application thereof.
Background technology
Wheat scab is a kind of fulminant, destructive disease, while occurring greatly, can cause wheat Severe Reduction, and even total crop failure, and sick wheat contains toxin, after eating, can cause person poultry poisoning, within nearly 2 years, occurs heavier.Mainly infect small ear, when serious the whole tassel later stage all withered, fringe portion produces the mould layer of pink colloid, seed shrinkage, shrivelled.This kind of disease can infect harm from Wheat Seedling to middle and later periods, especially with the morbidity of wheat heading flowering period, attaches most importance to.Generally can the underproduction 1～2 one-tenth, retransmitting the sick time can the underproduction 5～6 one-tenths, and even total crop failure, also can cause person poultry poisoning after the wheat of falling ill is eaten by people and animals, and Wheat Production and human and livestock health are constituted a serious threat.Therefore, fully grasp wheat scab occurrence regularity, make an accurate selection of opportunity, optimum period prevention, most important to High-yield Wheat good harvest.In recent years, overwhelming majority wheat scab in the Yangtze river basin was situation occurred frequently.Cause the large generation of gibberella saubinetii disease popular main cause to have two: the one, weather conditions are adapted to the popular propagation of pathogen; The 2nd, fusarium graminearum is high to preventing and treating Detection of insecticide resistance and the resistant strain ratio of main medicament carbendazim (carbendazim), the complex preparation (many ketone) that carbendazim and the carbendazim of take are main composition positive usual amounts (level) is lower can not this disease of effectively preventing, particularly red mould toxin can not effectively be controlled, and to subregion, prevents and treats unsuccessfully.Current, worldwide also there is no the wheat breed of high resistance wheat scab, so chemical control is still main control measures.Jiangsu Prov. Inst. of Agricultural Chemicals develops the efficient new medicament of 2-cyano-3-amino-3-phenylancryic acetate, be well used preventing and treating in wheat scab, but because 2-cyano-3-amino-3-phenylancryic acetate easily develops immunity to drugs, for delaying pesticide resistance, produce, be badly in need of screening (or composite) and go out effectively to prevent and treat this sick novel built bactericide.
Summary of the invention
Goal of the invention: first object of the present invention be to prevent with delay wheat scab to new and effective medicament--the pesticide resistance of 2-cyano-3-amino-3-phenylancryic acetate, improve and prevent and treat wheat scab effect, a kind of jinggangmycin A and biological composite bactericide of 2-cyano-3-amino-3-phenylancryic acetate wheat scab to high control efficiency is provided.Another object of the present invention has been to provide the application of above-mentioned biological composite bactericide.The invention provides the biological complex preparation of jinggangmycin A and 2-cyano-3-amino-3-phenylancryic acetate.This complex preparation and the current main medicament carbendazim of preventing and treating wheat scab and and triazole type between without mutual pesticide resistance, can effectively administer the pesticide resistance of fusarium graminearum to carbendazim and triazole type, and prevent and continue domestic initiative new varieties--2-cyano-3-amino-3-phenylancryic acetate is single to fusarium graminearum action site, problem easily develops immunity to drugs.Invention provides best synergy ratio range and complex preparation processing and the application thereof between two medicaments.Result of the test shows, compares complex preparation remarkable to the synergy of wheat scab with single dose, and field control effect is higher than single dose, and cost is also lower than 2-cyano-3-amino-3-phenylancryic acetate single dose.
Technical scheme: for solving the problems of the technologies described above, the invention provides a kind of biological composite bactericide of preventing and treating wheat scab, described biological composite bactericide comprises jinggangmycin A and 2-cyano-3-amino-3-phenylancryic acetate, and the weight proportion scope of described jinggangmycin A and 2-cyano-3-amino-3-phenylancryic acetate is 1:20～20:1.
Wherein, above-mentioned jinggangmycin A and 2-cyano-3-amino-3-phenylancryic acetate weight ratio 1:1～9.
Wherein, above-mentioned jinggangmycin A and 2-cyano-3-amino-3-phenylancryic acetate weight ratio 1:5.
Wherein, above-mentioned biological composite bactericide also comprises auxiliary agent and inserts.
Wherein, above-mentioned biological composite bactericide is one or more in wetting powder, suspending agent, microemulsion or water dispersible granules.
Wherein, when above-mentioned biological composite bactericide is wetting powder, described biological composite bactericide is comprised of following raw material by weight: jinggangmycin A 1～20%, 2-cyano-3-amino-3-phenylancryic acetate 1～20%, auxiliary agent 10～15%, surplus are inserts.
Wherein, when above-mentioned biological composite bactericide is wetting powder, described biological composite bactericide is comprised of following raw material by weight: jinggangmycin A 1～20%, 2-cyano-3-amino-3-phenylancryic acetate 1～50%, auxiliary agent 10～15%, surplus are inserts.
Wherein, when above-mentioned auxiliary agent is lauryl sodium sulfate, ethoxylated dodecyl alcohol, one or more in lignosulfonates, sulfonic acid polyformaldehyde condensation product, polyethylene glycol, ammonium sulfate, sodium carboxymethylcellulose, sodium butylnaphthalenesulfonate, 1-METHYLPYRROLIDONE, alkyl benzene calcium sulfonate, phenethyl phenol mela mine-formaldehyde resin polyoxy ethyl ether, ethylene glycol, silicone compound, xanthans, aluminium-magnesium silicate.
Wherein, when above-mentioned inserts is one or more in kaolin, diatomite, precipitated calcium carbonate or aluminium-magnesium silicate.
The above-mentioned biological composite bactericide of preventing and treating wheat scab is in the application preventing and treating aspect wheat scab.
Jinggangmycin A of the present invention and 2-cyano-3-amino-3-phenylancryic acetate composite bactericide are jan flowering wheat in the application optimum period of preventing and treating wheat scab, are watered 600kg control 1-2 time of carefully spraying.
Beneficial effect: compounded combination bactericide of the present invention is compared with conventional sterilization agent, have the following advantages: in compound drug of the present invention, jinggangmycin A and 2-cyano-3-amino-3-phenylancryic acetate are respectively the bactericide of the different mechanisms of action, and the past prevents and treats between the main medicament carbendazim of wheat scab and triazolone without mutual pesticide resistance; Wide, the interior absorption of said preparation fungicidal spectrum is strong, and quick-acting is good, the lasting period is long, environmentally friendly and have cost low and processing easy advantage.
Embodiment
Embodiment 1:24% jinggangmycin A 2-cyano-3-amino-3-phenylancryic acetate wetting powder
Jinggangmycin A 4%, 2-cyano-3-amino-3-phenylancryic acetate 20%, NNO8%, K12 (lauryl sodium sulfate) 4%, all the other are inserts kaolin.
Said components is mixed, and through air-flow crushing, to 350-400 order fineness, analytical control warehouse-in obtains 24% jinggangmycin A 2-cyano-3-amino-3-phenylancryic acetate wetting powder.
Embodiment 2:40% jinggangmycin A 2-cyano-3-amino-3-phenylancryic acetate suspending agent
Jinggangmycin A 20%, 2-cyano-3-amino-3-phenylancryic acetate 20%, lauryl sodium sulfate 2%, Magnesiumaluminumsilicate 5%, xanthans 3%, ethylene glycol 5%, water 45%.
By said components mix, after high speed shear and sand mill grinds, analytical control warehouse-in obtains 40% jinggangmycin A 2-cyano-3-amino-3-phenylancryic acetate suspending agent.
Embodiment 3 16% jinggangmycin A 2-cyano-3-amino-3-phenylancryic acetate microemulsions
Jinggangmycin A 8%, 2-cyano-3-amino-3-phenylancryic acetate 8%, 1-METHYLPYRROLIDONE 1%, alkyl benzene calcium sulfonate 2%, phenethyl phenol mela mine-formaldehyde resin polyoxy ethyl ether 2%, ethylene glycol 1%, silicone compound 1%, xanthans 2%, aluminium-magnesium silicate 1%, water 74%, make 16% jinggangmycin A 2-cyano-3-amino-3-phenylancryic acetate microemulsion.
Jinggangmycin A, 2-cyano-3-amino-3-phenylancryic acetate, solvent 1-METHYLPYRROLIDONE, emulsifier alkyl benzene calcium sulfonate and phenethyl phenol mela mine-formaldehyde resin polyoxy ethyl ether are added together, are dissolved into even oil phase; Water, antifreeze ethylene glycol, thickener xanthans, defoamer silicone compound are mixed, become homogeneous water.Under high-speed stirred, water is added to oil phase, can make 16% jinggangmycin A 2-cyano-3-amino-3-phenylancryic acetate microemulsion.
Embodiment 4:20% jinggangmycin A 2-cyano-3-amino-3-phenylancryic acetate water dispersible granules
Jinggangmycin A 10%, 2-cyano-3-amino-3-phenylancryic acetate 10%, neopelex 10%, urea 3%, precipitated calcium carbonate 67%.
Said components is mixed, through pulverizing the female powder of preparation, female powder is mixed with suitable quantity of water solution, high speed shear sand mill grind, then carry out fluidized bed prilling, dry, screening, analytical control warehouse-in obtain the water dispersible granules of 20% jinggangmycin A 2-cyano-3-amino-3-phenylancryic acetate.
Embodiment 5:15% jinggangmycin A 2-cyano-3-amino-3-phenylancryic acetate wetting powder
Jinggangmycin A 5%, 2-cyano-3-amino-3-phenylancryic acetate 10%, NNO8%, K12 (lauryl sodium sulfate) 4%, all the other are inserts kaolin.
Said components is mixed, and through air-flow crushing, to 350-400 order fineness, analytical control warehouse-in obtains 15% jinggangmycin A 2-cyano-3-amino-3-phenylancryic acetate wetting powder.
Embodiment 6:20% jinggangmycin A 2-cyano-3-amino-3-phenylancryic acetate wetting powder
Jinggangmycin A 5%, 2-cyano-3-amino-3-phenylancryic acetate 15%, NNO8%, K12 (lauryl sodium sulfate) 4%, all the other are inserts kaolin.
Said components is mixed, and through air-flow crushing, to 350-400 order fineness, analytical control warehouse-in obtains 20% jinggangmycin A 2-cyano-3-amino-3-phenylancryic acetate wetting powder.
Embodiment 7 16% jinggangmycin A 2-cyano-3-amino-3-phenylancryic acetate wetting powders
Jinggangmycin A 2%, 2-cyano-3-amino-3-phenylancryic acetate 14%, NNO8%, K12 (lauryl sodium sulfate) 4%, all the other are inserts kaolin.
Said components is mixed, and through air-flow crushing, to 350-400 order fineness, analytical control warehouse-in obtains 16% jinggangmycin A 2-cyano-3-amino-3-phenylancryic acetate wetting powder.
Embodiment 8 20% jinggangmycin A 2-cyano-3-amino-3-phenylancryic acetate wetting powders
Jinggangmycin A 2%, 2-cyano-3-amino-3-phenylancryic acetate 18%, NNO8%, K12 (lauryl sodium sulfate) 4%, all the other are inserts kaolin.
Said components is mixed, and through air-flow crushing, to 350-400 order fineness, analytical control warehouse-in obtains 20% jinggangmycin A 2-cyano-3-amino-3-phenylancryic acetate wetting powder.
Experimental example:
Jinggangmycin A of the present invention and 2-cyano-3-amino-3-phenylancryic acetate composite bactericide are determined as follows the toxicity of fusarium graminearum:
The female medicine of jinggangmycin A and the former medicinal acetone of 2-cyano-3-amino-3-phenylancryic acetate are dissolved into respectively 1000 μ g/mL mother liquors, and add 1% Tween-80.With sterile water, be mixed with the single dose series liquid that concentration is respectively 200,100,20,10,2,1,0.2 and 0.1 μ g/mL, be placed in triangular flask standby.Prochloraz and own azoles alcohol are prepared respectively to the serial test solution that becomes 1:1,1:3,1:5,1:7 and 1:9 mixture by effective content, be placed in triangular flask standby.Get respectively above-mentioned serial dilution medicament 1mL liquid and 9mL medium (PDA) and mix in culture dish, making content of dispersion in culture dish is the PDA medium of 20,10,2,1,0.2,0.1,0.02 and 0.01 μ g/mL, with sterile water, makes blank.The fusarium graminearum of preservation is transferred in PDA plate, activated after, at nearly colony edge, with card punch, produce the bacterium cake that diameter is 4mm, then be transferred in the PDA plate and blank with medicine, every processing repeats 4 times.The dark 4d that cultivates at 25 ℃.
When bacterium colony covers with plate soon in blank, adopt right-angled intersection method to measure colony diameter.Calculate colony diameter mean value, and calculate the average inhibiting rate of mycelial growth according to following formula: the average inhibiting rate of mycelial growth=[(contrast colony diameter average-processing colony diameter average)/(contrast colony diameter average-inoculation bacterium cake diameter)] * 100%.Adopt DPS data handling system, calculate regression equation, EC
50with EC
90and 95% confidence limit.Press Wadley method, calculate coefficient of synergism (SR).
The synergy type of evaluating pharmacy mix according to coefficient of synergism (SR), SR<0.5 is antagonism, and 0.5≤SR≤1.5 are summation action, and SR>1.5 is synergistic effect.SR＝EC
50(Eth)/EC
50(Eob)，EC
50(Eth)＝(a+b)/[(a/EC
50A)+(b/EC
50B)]。Wherein, A, B are respectively bactericide single dose, and a, b are the ratio of corresponding single dose in mixture, EC
50(Eth) be mixture EC
50theoretical value, EC
50(Eob) be mixture EC
50measured value.
Complex preparation and single dose show the Toxicity Determination result of fusarium graminearum, jinggangmycin A, the EC of 2-cyano-3-amino-3-phenylancryic acetate to fusarium graminearum
50be respectively 95.4673 μ g/mL and 0.1208 μ g/mL, 2-cyano-3-amino-3-phenylancryic acetate is to the indoor biologically active of fusarium graminearum high (table 1).
Jinggangmycin A and 2-cyano-3-amino-3-phenylancryic acetate are mixed and combine the EC to fusarium graminearum by 1:1,1:3,1:5,1:7 and 1:9 equal proportion respectively
50be respectively 0.1430 μ g/mL, 0.0969 μ g/mL, 0.0758 μ g/mL, 0.0815 μ g/mL and 0.0938 μ g/mL, 5 kinds of combinations that are mixed are respectively 1.69,1.66,1.91,1.69 and 1.43 to the coefficient of synergism of fusarium graminearum (SR).Jinggangmycin A and 2-cyano-3-amino-3-phenylancryic acetate are mixed the highest to the synergistic effect of fusarium graminearum in the ratio of 1:5, reach extremely significantly (coefficient of synergism SR reaches 1.91).
Table 1 jinggangmycin A, 2-cyano-3-amino-3-phenylancryic acetate and the built agent inhibitory action to the growth of wheat scab mycelia
Application Example
Bactericidal agent for preventing and treating wheat scab of the present invention
The field controling test of the bactericide of employing embodiment 1～8 to wheat scab.Spraying time is wheat flowering initial stage control 1 time.Wheat breed is town wheat 168, and water consumption is 600kg/hm
2, the method for preventing and treating is for thin spraying.
Experimental concentration is designed to:
Process (1) embodiment 1: jinggangmycin A 2-cyano-3-amino-3-phenylancryic acetate wetting powder 270g.ai/hm
2;
Process (2) embodiment 2: jinggangmycin A 2-cyano-3-amino-3-phenylancryic acetate suspending agent 270g.ai/hm
2;
Process (3) embodiment 3: jinggangmycin A 2-cyano-3-amino-3-phenylancryic acetate microemulsion 270g.ai/hm
2;
Process (4) embodiment 4: jinggangmycin A 2-cyano-3-amino-3-phenylancryic acetate water dispersible granules 270g.ai/hm
2;
Process (5) embodiment 5: jinggangmycin A 2-cyano-3-amino-3-phenylancryic acetate wetting powder 270g.ai/hm
2;
Process (6) embodiment 6: jinggangmycin A 2-cyano-3-amino-3-phenylancryic acetate wetting powder 270g.ai/hm
2;
Process (7) embodiment 7: jinggangmycin A 2-cyano-3-amino-3-phenylancryic acetate wetting powder 270g.ai/hm
2;
Process (8) embodiment 8: jinggangmycin A 2-cyano-3-amino-3-phenylancryic acetate wetting powder 270g.ai/hm
2;
Process (9) 50% carbendazol wettable powder 600g.ai/hm
2;
Process (10) 10% jinggangmeisu aqua 360g.ai/hm
2;
Process (11) 25% 2-cyano-3-amino-3-phenylancryic acetate suspending agent 375g.ai/hm
2;
Process (12) clear water.
Field control result shows, each is processed the in the situation that of wheat flowering initial stage control 1 time, the control efficiency of each embodiment 1～8 and 50% carbendazol wettable powder, 10% jinggangmycin A water solube powder and 25% 2-cyano-3-amino-3-phenylancryic acetate suspending agent is respectively 92.31%, 87.69%, 86.77%, 86.64%, 91.14%,, 94.12%, 91.70%, 91.28%, 80.25%, 68.88% and 84.96% (table 2).
The field control result of table 224% jinggangmycin A 2-cyano-3-amino-3-phenylancryic acetate to wheat scab
Result of the test shows: after jinggangmycin A and 2-cyano-3-amino-3-phenylancryic acetate are composite, compare with each unitary agent dosage wherein, the larger effective ingredient consumption that reduced of per hectare, and one time dispenser preventive effect is improved, wherein embodiment 1, embodiment 5, embodiment 6, embodiment 7, embodiment 8 preventive effects are all over 90%, and synergy is obvious.And be also improved with conventional pharmacopoeia carbendazim preventive effect.Reduce dosage and use cost, have good economy, society and ecological benefits.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a biological composite bactericide of preventing and treating wheat scab, is characterized in that, described biological composite bactericide comprises jinggangmycin A and 2-cyano-3-amino-3-phenylancryic acetate, and the weight proportion scope of described jinggangmycin A and 2-cyano-3-amino-3-phenylancryic acetate is 1:20～20:1.
2. a kind of biological composite bactericide of preventing and treating wheat scab according to claim 1, is characterized in that, described jinggangmycin A and 2-cyano-3-amino-3-phenylancryic acetate weight ratio 1:1 ~ 9.
3. a kind of biological composite bactericide of preventing and treating wheat scab according to claim 1, is characterized in that, described jinggangmycin A and 2-cyano-3-amino-3-phenylancryic acetate weight ratio 1:5.
4. a kind of biological composite bactericide of preventing and treating wheat scab according to claim 1, is characterized in that, described biological composite bactericide also comprises auxiliary agent and inserts.
5. a kind of biological composite bactericide of preventing and treating wheat scab according to claim 1, is characterized in that, described biological composite bactericide is one or more in wetting powder, suspending agent, microemulsion or water dispersible granules.
6. a kind of biological composite bactericide of preventing and treating wheat scab according to claim 5, it is characterized in that, when described biological composite bactericide is wetting powder, described biological composite bactericide is comprised of following raw material by weight: jinggangmycin A 1～20%, 2-cyano-3-amino-3-phenylancryic acetate 1～20%, auxiliary agent 10～15%, surplus are inserts.
7. a kind of biological composite bactericide of preventing and treating wheat scab according to claim 6, it is characterized in that, when described biological composite bactericide is wetting powder, described biological composite bactericide is comprised of following raw material by weight: jinggangmycin A 5～20%, 2-cyano-3-amino-3-phenylancryic acetate 10～20%, auxiliary agent 10～15%, surplus are inserts.
8. a kind of biological composite bactericide of preventing and treating wheat scab according to claim 4, it is characterized in that, described auxiliary agent is lauryl sodium sulfate, ethoxylated dodecyl alcohol, one or more in lignosulfonates, sulfonic acid polyformaldehyde condensation product, polyethylene glycol, ammonium sulfate, sodium carboxymethylcellulose, sodium butylnaphthalenesulfonate, 1-METHYLPYRROLIDONE, alkyl benzene calcium sulfonate, phenethyl phenol mela mine-formaldehyde resin polyoxy ethyl ether, ethylene glycol, silicone compound, xanthans, aluminium-magnesium silicate.
9. a kind of biological composite bactericide of preventing and treating wheat scab according to claim 4, is characterized in that, described inserts is one or more in kaolin, diatomite, precipitated calcium carbonate or aluminium-magnesium silicate.
10. the biological composite bactericide of preventing and treating wheat scab described in claim 1 ~ 9 is in the application preventing and treating aspect wheat scab.
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| CN106719807A (en) * | 2016-11-30 | 2017-05-31 | 谢松芬 | The compound drug of wheat scab |
| CN106973899A (en) * | 2017-04-12 | 2017-07-25 | 江苏金凤凰农化有限公司 | A kind of composition and application process that wheat scab is treated based on guaiacol |
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| CN109496738A (en) * | 2018-11-13 | 2019-03-22 | 江西农业大学 | White lotus pest control method |
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