CN103828820B - Bactericidal composition containing oligosaccharide and fluoxastrobin - Google Patents
Bactericidal composition containing oligosaccharide and fluoxastrobin Download PDFInfo
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- CN103828820B CN103828820B CN201410068020.2A CN201410068020A CN103828820B CN 103828820 B CN103828820 B CN 103828820B CN 201410068020 A CN201410068020 A CN 201410068020A CN 103828820 B CN103828820 B CN 103828820B
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- fluoxastrobin
- oligosaccharides
- bactericidal composition
- wheat
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- 239000000203 mixture Substances 0.000 title claims abstract description 59
- 229920001542 oligosaccharide Polymers 0.000 title claims abstract description 33
- 239000005784 Fluoxastrobin Substances 0.000 title claims abstract description 27
- UFEODZBUAFNAEU-NLRVBDNBSA-N fluoxastrobin Chemical compound C=1C=CC=C(OC=2C(=C(OC=3C(=CC=CC=3)Cl)N=CN=2)F)C=1C(=N/OC)\C1=NOCCO1 UFEODZBUAFNAEU-NLRVBDNBSA-N 0.000 title claims abstract description 27
- 150000002482 oligosaccharides Chemical class 0.000 title claims abstract description 26
- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 18
- 241000209140 Triticum Species 0.000 claims description 18
- 235000021307 Triticum Nutrition 0.000 claims description 18
- 206010039509 Scab Diseases 0.000 claims description 12
- 241000233679 Peronosporaceae Species 0.000 claims description 11
- 201000010099 disease Diseases 0.000 claims description 11
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 claims description 11
- 240000008067 Cucumis sativus Species 0.000 claims description 10
- 241000221785 Erysiphales Species 0.000 claims description 10
- 235000010799 Cucumis sativus var sativus Nutrition 0.000 claims description 9
- -1 sodium alginate oligosaccharide Chemical class 0.000 claims description 9
- RQFQJYYMBWVMQG-IXDPLRRUSA-N chitotriose Chemical compound O[C@@H]1[C@@H](N)[C@H](O)O[C@H](CO)[C@H]1O[C@H]1[C@H](N)[C@@H](O)[C@H](O[C@H]2[C@@H]([C@@H](O)[C@H](O)[C@@H](CO)O2)N)[C@@H](CO)O1 RQFQJYYMBWVMQG-IXDPLRRUSA-N 0.000 claims description 7
- 235000010413 sodium alginate Nutrition 0.000 claims description 7
- 229940005550 sodium alginate Drugs 0.000 claims description 7
- 239000000661 sodium alginate Substances 0.000 claims description 7
- 229920001277 pectin Polymers 0.000 claims description 6
- 240000007594 Oryza sativa Species 0.000 claims description 3
- 235000007164 Oryza sativa Nutrition 0.000 claims description 3
- 235000009566 rice Nutrition 0.000 claims description 3
- 241001530056 Athelia rolfsii Species 0.000 claims description 2
- 235000002566 Capsicum Nutrition 0.000 claims description 2
- 240000008574 Capsicum frutescens Species 0.000 claims description 2
- 241000233652 Chytridiomycota Species 0.000 claims description 2
- 244000241235 Citrullus lanatus Species 0.000 claims description 2
- 235000012828 Citrullus lanatus var citroides Nutrition 0.000 claims description 2
- 241000675108 Citrus tangerina Species 0.000 claims description 2
- 241000233866 Fungi Species 0.000 claims description 2
- 241000220225 Malus Species 0.000 claims description 2
- 235000011430 Malus pumila Nutrition 0.000 claims description 2
- 235000015103 Malus silvestris Nutrition 0.000 claims description 2
- 241000582441 Peronospora tabacina Species 0.000 claims description 2
- 241000220324 Pyrus Species 0.000 claims description 2
- 235000009754 Vitis X bourquina Nutrition 0.000 claims description 2
- 235000012333 Vitis X labruscana Nutrition 0.000 claims description 2
- 240000006365 Vitis vinifera Species 0.000 claims description 2
- 235000014787 Vitis vinifera Nutrition 0.000 claims description 2
- 241000607479 Yersinia pestis Species 0.000 claims description 2
- 239000001390 capsicum minimum Substances 0.000 claims description 2
- 239000000839 emulsion Substances 0.000 claims description 2
- 239000004530 micro-emulsion Substances 0.000 claims description 2
- 235000021017 pears Nutrition 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims description 2
- 239000000375 suspending agent Substances 0.000 claims description 2
- 239000004562 water dispersible granule Substances 0.000 claims description 2
- 238000009736 wetting Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 16
- 208000031888 Mycoses Diseases 0.000 abstract description 3
- 239000000575 pesticide Substances 0.000 abstract description 3
- 244000052616 bacterial pathogen Species 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
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- 230000006806 disease prevention Effects 0.000 abstract 1
- 230000002265 prevention Effects 0.000 abstract 1
- 230000003449 preventive effect Effects 0.000 description 21
- 241000196324 Embryophyta Species 0.000 description 14
- 239000003814 drug Substances 0.000 description 13
- 239000007921 spray Substances 0.000 description 8
- 238000011160 research Methods 0.000 description 6
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- 229940079593 drug Drugs 0.000 description 2
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- 230000002438 mitochondrial effect Effects 0.000 description 2
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 102100025287 Cytochrome b Human genes 0.000 description 1
- 102000019265 Cytochrome c1 Human genes 0.000 description 1
- 108010075028 Cytochromes b Proteins 0.000 description 1
- 108010007528 Cytochromes c1 Proteins 0.000 description 1
- 206010017533 Fungal infection Diseases 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
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- 230000033228 biological regulation Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
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- 230000001939 inductive effect Effects 0.000 description 1
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- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
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- 231100000957 no side effect Toxicity 0.000 description 1
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- 229920000053 polysorbate 80 Polymers 0.000 description 1
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Abstract
The invention discloses a bactericidal composition containing oligosaccharide and fluoxastrobin and belongs to the field of plant protection. The mass fraction ratio of oligosaccharide to fluoxastrobin 20:1-1:20. The invention also provides application of the bactericidal composition to prevention and control of various fungus diseases of crops. The bactericidal composition has remarkable synergism in a certain proportioning range, improves the disease prevention effect and delays formation of pesticide resistance of pathogenic bacteria.
Description
Technical field
The invention belongs to plant protection art, be specifically related to the bactericidal composition of a kind of oligosaccharides and fluoxastrobin, composition is for preventing and treating the multiple diseases such as powdery mildew, downy mildew, smut, rust of plant.
Background technology
Come from organism and the great interest of the good compound of biodegradability has caused pesticide research person.In these compounds, have no side effect, the oligosaccharides of easily biological-degradable has very large potentiality, become the new medicament controlling disease.Oligosaccharides is as the important plant inducing anti-disease agent of a class, derive from the research of the oligosaccharide of plant, research shows, oligosaccharides is in the process resisting pathogen erosion, can induction plant be excited to produce a series of defense reaction, these defense reactions synergy stops propagation and the invasion of pathogen, reaches the effect of preventing and curing diseases.Meanwhile, oligosaccharides is also the plant hormone that a class is new, has the effects such as regulation and control growth and development of plants, and it can send the information regulating specified plant function, and these functions comprise growth promotion, cold-resistant, drought resisting etc.
The mechanism of action of fluoxastrobin is also mitochondrial respiratory inhibitor, namely suppresses mitochondrial breathing by electro transfer between cytochrome b and C1.Fluoxastrobin application optimum period, is wide, no matter early stage as spore germination, germ tube growth and intrusion leaf portion at fungal infection, or can provide extraordinary protection and therapeutic action at growth period of hypha; But infect the most effective to spore germination and initial stage.The systemic activity of the excellence that cause has, it can be rapidly absorbed, and can transmit to top equably in leaf portion, therefore have the good resistance of rainwater washing against ability of root.For this medicament of Reasonable Protection, delay germ to the drug-fast generation of new medicament and the control efficiency improving medicament, be necessary to carry out rational composition research.Also there is no the report about oligosaccharides and fluoxastrobin composition research at present.Inventor, by the research to the composite effect of bactericidal composition, has found some beyond thought effects.
Summary of the invention
The object of the present invention is to provide the bactericidal composition of a kind of oligosaccharides and fluoxastrobin, the object of the invention is to be realized by following measures.
The invention provides a kind of containing oligosaccharides and fluoxastrobin bactericidal composition, in bactericidal composition, oligosaccharides is selected from least one in chitosan oligosaccharide, pectic oligosaccharides, sodium alginate oligosaccharide, the ratio of quality and the number of copies of oligosaccharides and fluoxastrobin two component is 20:1-1:20, preferably, ratio of quality and the number of copies is 1:10-10:1.
In above-mentioned bactericidal composition, the quality sum of oligosaccharides and fluoxastrobin two component accounts for the 1-80% of bactericidal composition gross mass percentage.
Above-mentioned composition of the present invention can be made into suspending agent, wetting powder, water dispersible granules, aqua, microemulsion, aqueous emulsion, for spraying, fills with root, seed dressing etc.
Present invention also offers above-mentioned composition for preventing and treating the purposes of crop pest, the disease of suitable control has the fungus-caused powdery mildew of Ascomycotina, leaf spot etc., the fungus-caused downy mildew of Mastigomycotina, epidemic disease, peronospora tabacina etc., the smut that Basidiomycotina causes, banded sclerotial blight etc., the fungus-caused rice blast of Fungi Imperfecti, scab etc.Therefore, the present invention also comprises the purposes of various agricultural fungal diseases on above-mentioned composition control crop.
The present invention also finds, above-mentioned bactericidal composition is when respective active component uses total amount to reduce, and have excellent control efficiency to wheat powdery mildew, cucumber downy mildew, wheat smut, synergistic effect is obvious.
In the purposes of above-mentioned composition of the present invention, described crop is wheat, cucumber, paddy rice, capsicum, watermelon, apple, grape, oranges and tangerines, pears, lichee, flowers, lawn etc.
Beneficial effect of the present invention is:
1, synergistic effect is obvious: composition shows good synergistic effect in certain ratio range, improves the protection effect of composition.
2, use cost is reduced: because of composite, there is raising preventive effect, the increase of control spectrum, decrease access times, reduce use cost;
3, delay pesticide resistance: the composition of two kinds of different mechanism of action is composite, and pathogen not easily develops immunity to drugs, delay pathogen to the drug-fast generation of medicament.
Embodiment
Following examples further illustrate of the present invention, but the present invention is not limited to composition ratio in present embodiment and purposes.
The composition of embodiment 1 chitosan oligosaccharide and fluoxastrobin is to the effect of wheat powdery mildew
Be mixed into compost with sterilized soil and sterilizing river sand, fully after mixing, add clear water after fully mixing thoroughly and make water content 30%, then mix rear quantitative loading basin alms bowl thoroughly.Basin alms bowl sowing wheat seed 10, management of normally watering after seed sprouting, until seedling true leaf expansion after 1 week, the quantitative blade of every alms bowl inoculates quantitative powdery mildew, move to also unified moisturizing cultivation in observation ward, 7d " Invest, Then Investigate " disease refers to and sprays medicine, and after medicine, 14d continues spray medicine 1 time.20d " Invest, Then Investigate " disease refers to, record investigation total number of sheets, the sick number of sheets, calculate disease index and preventive effect according to following stage division, the results are shown in Table 3.
Blade grade scale:
0 grade: anosis
1 grade: the scab area that is connected accounts for less than 1% of whole leaf area;
3 grades: the scab area that is connected accounts for the 1%-5% of whole leaf area;
5 grades: the scab area that is connected accounts for the 6%-25% of whole leaf area;
7 grades: the scab area that is connected accounts for the 26%-50% of whole leaf area;
9 grades: the scab area that is connected accounts for more than 51% of whole leaf area;
Theoretical preventive effect (%)=x+y-xy
The preventive effect of the active component A that x is working concentration when being a, the preventive effect of the active component B that y is working concentration when being b.Relatively theoretical effect and actual effect, evaluates the synergy of composition, for synergistic effect when being greater than theoretical preventive effect with actual preventive effect.The results are shown in Table 1.
The composition of table 1 chitosan oligosaccharide and fluoxastrobin is to the control efficiency of wheat powdery mildew
By potted plant spray test, as seen from Table 1, when composition proportioning is 10:1-1:10, the composition of chitosan oligosaccharide+fluoxastrobin to the actual effect of wheat powdery mildew all higher than the theoretical preventive effect of composition.Obviously, the composition of chitosan oligosaccharide and fluoxastrobin is synergy to wheat powdery mildew.
The composition of embodiment 2 pectic oligosaccharides and fluoxastrobin is to the control efficiency of cucumber downy mildew
Single compound or composition organic solvent dissolution are prepared into the mother liquor of 1000mg/L.According to biological activity determination trial test, a certain amount of above-mentioned mother liquor 0.1% Tween 80 is diluted, is mixed with the concentration of needs.During test, cucumber plant, substantially in 4 leaf phases, investigates downy mildew incidence before the 1st medicine.Carried out cucumber downy mildew pot experiment by chitosan oligosaccharide composition, and established corresponding single dose and blank, adopt the conventional conventional spray of manual sprayer, every medicament sprays 10 strains, and the 7-10d after 1 time that sprays sprays 1 time again.10-14d investigation after 2nd dispenser, whole blade is investigated in every strain, and record investigation total number of sheets, the sick number of sheets, calculate disease index and preventive effect according to following stage division.
Blade staging:
0 grade: anosis
1 grade: the scab area that is connected accounts for less than 1% of whole leaf area;
3 grades: the scab area that is connected accounts for the 1%-10% of whole leaf area;
5 grades: the scab area that is connected accounts for the 11%-20% of whole leaf area;
7 grades: the scab area that is connected accounts for the 21%-50% of whole leaf area;
9 grades: the scab area that is connected accounts for more than 51% of whole leaf area;
Theoretical preventive effect (%)=x+y-xy
The preventive effect of the active component A that x is working concentration when being a, the preventive effect of the active component B that y is working concentration when being b.Relatively theoretical effect and actual effect, evaluates the synergy of composition, for synergistic effect when being greater than theoretical preventive effect with actual preventive effect.The results are shown in Table 2.
The composition of table 2 pectic oligosaccharides and fluoxastrobin is to the control efficiency of cucumber downy mildew
By potted plant spray test, as seen from Table 2, when composition proportioning is 10:1-1:10, the composition of pectic oligosaccharides+fluoxastrobin to the effect of cucumber downy mildew all higher than the theoretical preventive effect of composition.Obviously, the composition of pectic oligosaccharides and fluoxastrobin is synergy to cucumber downy mildew.
The composition of embodiment 3 sodium alginate oligosaccharide and fluoxastrobin is to wheat smut field efficacy
Carried out wheat smut field trial with composition, and established corresponding single dose and blank, community 20m established by every medicament
2.Every double centner seed medication 5-40 gram (active ingredient) seed dressing, in wheat milk ripe stage or maturing stage, every community adopts diagonal 5 sampling, gets 0.5m at often
2investigate total strain number and dust-brand diseased plant number, calculate diseased plant rate.
CK---blank district diseased plant rate;
PT---chemicals treatment district diseased plant rate;
Theoretical preventive effect (%)=x+y-xy
The preventive effect of the active component A that x is working concentration when being a, the preventive effect of the active component B that y is working concentration when being b.Relatively theoretical effect and actual effect, evaluates the synergy of composition, for synergistic effect when being greater than theoretical preventive effect with actual preventive effect.The control efficiency of bactericidal composition containing sodium alginate oligosaccharide to wheat smut the results are shown in Table 3.
Table 3 contains the bactericidal composition of sodium alginate oligosaccharide and fluoxastrobin to wheat smut field efficacy
By potted plant seed dressing test, as seen from Table 3, when composition proportioning is 20:1-1:5, the composition of sodium alginate oligosaccharide+fluoxastrobin to the effect of wheat smut all higher than the theoretical preventive effect of composition.Obviously, the composition of sodium alginate oligosaccharide and fluoxastrobin is synergy to wheat smut.
Claims (7)
1. contain the bactericidal composition of oligosaccharides and fluoxastrobin, in bactericidal composition, oligosaccharides is selected from least one in chitosan oligosaccharide, pectic oligosaccharides, sodium alginate oligosaccharide, and the ratio of quality and the number of copies of oligosaccharides and fluoxastrobin two component is 20:1-1:20.
2. composition according to claim 1, is characterized in that ratio of quality and the number of copies is 10:1-1:10.
3. the composition according to any one of claim 1-2, is characterized in that the quality sum of oligosaccharides and fluoxastrobin two component accounts for the 1-80% of bactericidal composition gross mass percentage.
4. composition according to claim 3, is characterized in that composition makes suspending agent, wetting powder, water dispersible granules, aqua, microemulsion, aqueous emulsion, for spraying, fills with root, seed dressing.
5. composition according to claim 4 is for preventing and treating the purposes of crop pest, it is characterized in that the fungus-caused powdery mildew of control Ascomycotina, leaf spot, the fungus-caused downy mildew of Mastigomycotina, epidemic disease, peronospora tabacina, the smut that Basidiomycotina causes, banded sclerotial blight, the fungus-caused scab of Fungi Imperfecti.
6. purposes according to claim 5, is characterized in that described crop is wheat, cucumber, paddy rice, capsicum, watermelon, apple, grape, oranges and tangerines, pears, lichee, flowers, lawn.
7. purposes according to claim 6, is characterized in that composition is for preventing and treating wheat powdery mildew, cucumber downy mildew, wheat smut.
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| CN105994303B (en) * | 2016-08-12 | 2019-01-18 | 李祥英 | A kind of bactericidal composition containing fluoxastrobin and chitosan |
| CN106818789A (en) * | 2016-12-09 | 2017-06-13 | 广州后稷生物科技有限公司 | A kind of composition pesticide and its aqueous suspension agent for preventing and treating banana Panama disease |
| CN107114381A (en) * | 2017-05-15 | 2017-09-01 | 杨新兰 | A kind of bactericidal composition containing platycodon root polysaccharide and fluoxastrobin |
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| DE102004049761A1 (en) * | 2004-10-12 | 2006-04-13 | Bayer Cropscience Ag | Fungicidal drug combinations |
| CN101816305A (en) * | 2010-05-09 | 2010-09-01 | 海南正业中农高科股份有限公司 | Bactericide pesticide composite containing oligochitosan |
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Address after: Fuchang Village, Laocheng Development Zone, Chengmai County, Hainan Province, 571923 Patentee after: Hainan Zhengye Biotechnology Co.,Ltd. Address before: 571924 Fuchang village, Laocheng Development Zone, Chengmai County, Hainan Province Patentee before: HAINAN ZHENGYE ZHONGNONG HIGH TECHNOLOGY Co.,Ltd. |
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