CN104012535B - Bactericide composition containing fluoride ether bacteria amide and laminarin - Google Patents
Bactericide composition containing fluoride ether bacteria amide and laminarin Download PDFInfo
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- CN104012535B CN104012535B CN201410256405.1A CN201410256405A CN104012535B CN 104012535 B CN104012535 B CN 104012535B CN 201410256405 A CN201410256405 A CN 201410256405A CN 104012535 B CN104012535 B CN 104012535B
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- laminarin
- acid amides
- bacterium acid
- ether bacterium
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Abstract
The invention relates to a bactericide composition containing fluoride ether bacteria amide and laminarin. The bactericide composition comprises a suspending agent, wettable powder, water dispersible granules and the like prepared from the fluoride ether bacteria amide, the laminarin and auxiliary agents including a wetting dispersant, a filling agent and the like. An experiment research shows that the fluoride ether bacteria amide and the laminarin are mixed according to a ratio from (10:1) to (50:1); a systemic fungicide is combined with a disease-resistant inducing agent so that the bactericide composition has an obvious synergistic effect on cucumber downy mildew, and can also delay a disease progress; the dosage of the chemical pesticide fluoride ether bacteria amide is reduced and the resistance to the fluoride ether bacteria amide by pathogenic bacteria can be effectively delayed. The bactericide composition is suitable for preventing and treating many vegetable oomycete diseases including the cucumber downy mildew, tomato phytophthora diseases, phytophthora capsici, potato late blight and the like, and can also be used for preventing and treating cotton seedling stage diseases including cotton red rot diseases and the like.
Description
Technical field
The present invention relates to the microbicide compositions of a kind of fluorine-containing ether bacterium acid amides and laminarin.This microbicide compositions is suitable for the various vegetables oomycetes diseases such as control cucumber downy mildew, tomato phytophthora root rot, Phytophthora capsici disease and potato late blight, also can prevent and treat the disease in cotton seedling stage etc. such as cotton boll rot disease.
Background technology
Fluorine ether bacterium acid amides (LH-2010A), chemical name: N-(the chloro-5-of 3-(trifluoromethyl) pyridine-2-methyl)-2,3,5,6-tetra-fluoro-4-methoxy benzamides.It is a kind of amide-type wide-spectrum bactericide, has very high biologically active to Oomycete fungal germ, has protection and therapeutic action.Fluorine ether bacterium acid amides has stronger interior absorption.Absorb by cauline leaf, conducted by plant lower to upper part direction, distribute to whole strain crop along plant xylem.
Laminarin (laminaran) is one of water-soluble substances extracted from sea-tangle, and in sea-tangle, main component has algin (algin), fucoidin (fucoidan) and laminaran (laminaran).Laminaran is also known as laminarin, and the polymer primarily of glucose forms, and its content in sea-tangle is generally about 1%.Laminarin is a kind of immunomodulator, pharmaceutically its action intensity is close with lycium barbarum polysaccharide with laminarin, directly can carry out immunological regulation to macrophage, T cell.
At present, the disclosed microbicide compositions containing fluorine ether bacterium acid amides has: fluorine ether bacterium acid amides and tmtd, tpn, jinggangmeisu, dimethomorph etc. composite.Above-mentioned agricultural chemicals is all chemical pesticide, and toxicity is large, and contaminated environment.
Summary of the invention
The object of the invention is to the microbicide compositions proposing a kind of fluorine-containing ether bacterium acid amides and laminarin, to improve the control efficiency to various vegetables oomycetes diseases such as cucumber downy mildews, reduce the consumption of fluorine ether bacterium acid amides, delay the resistance of pathogen to medicament, reduce cost accounting.
Technical scheme of the present invention is: the microbicide compositions of a kind of fluorine-containing ether bacterium acid amides and laminarin, it is characterized in that, with fluorine ether bacterium acid amides and laminarin for active ingredient, the weight ratio of fluorine ether bacterium acid amides and laminarin is 10 ~ 50:0.2 ~ 5, the total content of active ingredient is 11-51%, and all the other are auxiliary agent and filler.
Preferably, the weight ratio of described fluorine ether bacterium acid amides and laminarin is 10 ~ 50:1.Preferred, the weight ratio of described fluorine ether bacterium acid amides and laminarin is 40:1.
The present invention can use the auxiliary agent such as wetting dispersing agent, filler to be traditionally processed into suspending agent, water dispersible granules and wetting powder.Preferably add filler, wetting dispersing agent, thickener, antifreezing agent and water and make suspending agent.Wherein filler can be white carbon, diatomite etc.; Wetting dispersing agent can be Morwet EFW, lauryl sodium sulfate, EL80, No. 500, agriculture breast etc.; Thickener can be efficient polysiloxanes, xanthans aluminium-magnesium silicate etc.; Antifreezing agent can be ethylene glycol.
Laminarin also can be replaced with lentinan, Mushroom polysaccharide, amino-oligosaccharide and matrine by the present invention.
The invention also discloses the purposes of microbicide compositions in the various vegetables oomycetes diseases such as control cucumber downy mildew, tomato phytophthora root rot, Phytophthora capsici disease and potato late blight of fluorine-containing ether bacterium acid amides and laminarin.Above-mentioned microbicide compositions can also prevent and treat the disease in cotton seedling stage etc. such as cotton boll rot disease.
Present invention also offers a kind of method using above-mentioned microbicide compositions to prevent and treat the oomycetes disease of the various vegetables such as cucumber, tomato, capsicum and potato, it is spray application after disease initial stage of origination is by above-mentioned microbicide compositions preparation thin up.
The present invention adopts cucumber plant spraying, and then connect bacterium to blade, process latter 96 hours, check the disease index of each process, calculate the protected effect of relative cucumber leaves, then carry out statistical analysis according to regression analysis, its co-toxicity result is as shown in table 1.
Table 1 fluorine ether bacterium acid amides co-toxicity to cucumber downy mildew protective effect mixed with laminarin
| Medicament | Regression equation (y=) | EC 50(mg/L) | 95% confidence limit co-toxicity coefficient |
| Fluorine ether bacterium acid amides (A) | 2.9402+2.4930x | 6.7024 | 4.2484～9.5251～ |
| Laminarin (B) | 3.0698+1.0623x | 65.615 | 41.783～93.039～ |
| A+B10：1 | 3.8105+1.8257x | 4.4829 | 2.6858～7.0398162.8 |
| A+B20：1 | 3.9086+1.7460x | 4.2177 | 2.6858～6.6233166.0 |
| A+B30：1 | 3.8695+1.8835x | 3.9831 | 2.5364～6.2549173.3 |
| A+B40：1 | 3.9805+1.9508x | 3.3314 | 2.1214～5.2315205.7 |
| A+B50：1 | 3.8836+1.9714x | 3.6839 | 2.3459～5.7851185.2 |
Table 1 shows: fluorine ether bacterium acid amides is 6.7024mg/L to the EC50 of cucumber downy mildew, laminarin is 65.615mg/L to the EC50 of cucumber downy mildew, fluorine ether bacterium acid amides is mixed with 50:1 with laminarin 10:1,20:1,30:1,40:1, its EC50 is respectively 4.4829mg/L, 4.2177mg/L, 3.9831mg/L, 3.3314mg/L and 3.6839mg/L, and co-toxicity coefficient reaches 162.8,166.0,173.3,205.7 and 185.2 respectively.Result shows: fluorine ether bacterium acid amides and laminarin 10:1 ~ 50:1 synergism all very remarkable.
21% fluorine ether bacterium acid amides+laminarin (20:1) suspending agent, 31% fluorine ether bacterium acid amides+laminarin (30:1) suspending agent, 41% fluorine ether bacterium acid amides+laminarin (40:1) suspending agent and 51% fluorine ether bacterium acid amides+laminarin (50:1) suspending agent that the present invention processes for active ingredient with fluorine ether bacterium acid amides and laminarin, the control efficiency using 200mg/L to spray in field to prevent and treat cucumber downy mildew with 20% fluorine ether bacterium amide suspending agents and 1% laminarin aqua is more as shown in table 2.
The effect of table 2 fluorine ether bacterium acid amides and laminarin composition field spray control cucumber downy mildew
* in table, data are added up through duncan's new multiple range method, are that difference is not remarkable containing same letter person
Table 2 shows: compared with the control efficiency using 200mg/L to spray to prevent and treat cucumber downy mildew in field with 20% fluorine ether bacterium amide suspending agents, 21% fluorine ether bacterium acid amides+laminarin (20:1) suspending agent, 31% fluorine ether bacterium acid amides+laminarin (30:1) suspending agent, under reducing fluorine ether bacterium acid amides 1/2 consumption in 41% fluorine ether bacterium acid amides+laminarin (40:1) suspending agent and 51% fluorine ether bacterium acid amides+laminarin (50:1) suspending agent, four kinds of compositions, control efficiency and the fluorine ether bacterium acid amides of each process are quite alone, all be significantly higher than the control efficiency that laminarin is alone.Show that fluorine ether bacterium acid amides and laminarin composition are more suitable for field control cucumber downy mildew.
The invention has the beneficial effects as follows: the present invention studies discovery by experiment, it is mixed that 10:1 ~ 50:1 pressed by fluorine ether bacterium acid amides and laminarin, systemic fungicide and Plant elicitors combine, not only to cucumber downy mildew, there is remarkable synergistic effect, also Development process can be delayed, reduce the consumption of chemical pesticide fluorine ether bacterium acid amides, effectively can delay the resistance of pathogen to fluorine ether bacterium acid amides.The present invention is suitable for the various vegetables oomycetes diseases such as control cucumber downy mildew, tomato phytophthora root rot, Phytophthora capsici disease and potato late blight, and also can prevent and treat the disease in cotton seedling stage etc. such as cotton boll rot disease, using value is large, and economic and social benefit is very remarkable.
Accompanying drawing explanation
Fig. 1 is the processing process figure of the suspending agent of the microbicide compositions of fluorine-containing ether bacterium acid amides and laminarin.
Embodiment
The formula of a kind of fluorine-containing ether bacterium acid amides that the present invention relates to and the microbicide compositions of laminarin by embodiment 1, embodiment 2 and embodiment 3, be specifically described, but to be not limited thereto.
Embodiment 1:
A microbicide compositions for fluorine-containing ether bacterium acid amides and laminarin, by weight, fluorine ether bacterium acid amides 20%, laminarin 1%, filler 2%, wetting dispersing agent 4%, thickener 0.2%, antifreezing agent 1%, water 71.8%.Above composition is all weighed, mix and grinding is prepared into suspending agent formulation.Above raw material is commercially available qualified products.
Embodiment 2:
A microbicide compositions for fluorine-containing ether bacterium acid amides and laminarin, by weight, fluorine ether bacterium acid amides 30%, laminarin 2%, filler white carbon 2%, wetting dispersing agent 4%, thickener 0.2%, antifreezing agent 1%, water 60.8%.Above composition is all weighed, mix and grinding is prepared into suspending agent formulation.Above raw material is commercially available qualified products.
Embodiment 3:
A microbicide compositions for fluorine-containing ether bacterium acid amides and laminarin, by weight, fluorine ether bacterium acid amides 40%, laminarin 1%, filler 2%, wetting dispersing agent 4%, thickener 0.2%, antifreezing agent 1%, water 51.8%.Above composition is all weighed, mix and grinding is prepared into suspending agent formulation.Above raw material is commercially available qualified products.
The filler of embodiment 1-3 can be white carbon, diatomite etc.; Wetting dispersing agent can be Morwet EFW, lauryl sodium sulfate, EL80, No. 500, agriculture breast etc.; Thickener can be efficient polysiloxanes, xanthans aluminium-magnesium silicate etc.; Antifreezing agent can be ethylene glycol.
The method using above-mentioned microbicide compositions to prevent and treat cucumber downy mildew and other vegetables oomycetes diseases is, add water at disease initial stage of origination and be made into suspension spray and use, can prevent and treat cotton boll rot disease, anthracnose sprout term disease etc., using value is large, and economic and social benefit is very remarkable.
Claims (8)
1. a microbicide compositions for fluorine-containing ether bacterium acid amides and laminarin, is characterized in that, with fluorine ether bacterium acid amides and laminarin for active ingredient, the weight ratio of fluorine ether bacterium acid amides and laminarin is 10 ~ 50:0.2 ~ 5, and the total content of active ingredient is 11-51%.
2. the microbicide compositions of a kind of fluorine-containing ether bacterium acid amides as claimed in claim 1 and laminarin, is characterized in that, the weight ratio of described fluorine ether bacterium acid amides and laminarin is 10 ~ 50:1.
3. the microbicide compositions of a kind of fluorine-containing ether bacterium acid amides as claimed in claim 2 and laminarin, is characterized in that, the weight ratio of described fluorine ether bacterium acid amides and laminarin is 40:1.
4. the microbicide compositions of a kind of fluorine-containing ether bacterium acid amides as claimed in claim 1 and laminarin, is characterized in that, it is suspending agent, water dispersible granules and wetting powder.
5. the microbicide compositions of a kind of fluorine-containing ether bacterium acid amides as claimed in claim 4 and laminarin, is characterized in that, it is suspending agent, and its component is: fluorine ether bacterium acid amides, laminarin, filler, wetting dispersing agent, thickener, antifreezing agent and water; Wherein filler is white carbon or diatomite, and wetting dispersing agent is Morwet EFW, lauryl sodium sulfate, EL80 or No. 500, agriculture breast, and described thickener is efficient polysiloxanes, xanthans or aluminium-magnesium silicate, and described antifreezing agent is ethylene glycol.
6. the purposes of the microbicide compositions in claim 1-5 described in any one in control vegetables oomycetes disease.
7. purposes as claimed in claim 6, is characterized in that, described vegetables oomycetes disease is cucumber downy mildew, tomato phytophthora root rot, Phytophthora capsici disease or potato late blight.
8. the purposes of the microbicide compositions in claim 1-5 described in any one in control cotton boll rot disease.
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| WO2023170559A1 (en) * | 2022-03-08 | 2023-09-14 | UPL Corporation Limited | Method and composition for improvement of agricultural produce |
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| CN104285952B (en) * | 2014-09-15 | 2015-11-11 | 山东圣鹏科技股份有限公司 | A kind of anti-plant virus composition and application thereof |
| CN104655763B (en) * | 2015-03-12 | 2016-08-24 | 崔淑华 | A kind of GC-NCI-MS assay method of fluorine ether bacterium amide residual quantity |
| CN108056103B (en) * | 2016-11-08 | 2020-09-22 | 中国科学院大连化学物理研究所 | Glucosaccharide compound preparation and application thereof in potato disease prevention and control |
| CN106922678A (en) * | 2017-03-18 | 2017-07-07 | 深圳诺普信农化股份有限公司 | A kind of bactericidal composition |
| CN111011382B (en) * | 2020-02-17 | 2021-09-03 | 南京理工大学 | Application of beta-glucan and succinoglycan in prevention and control of soil-borne fungal diseases |
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| CN101134783B (en) * | 2007-10-19 | 2010-06-16 | 大连工业大学 | Method for preparing sea-tangle polysaccharide |
| CN102086173B (en) * | 2010-09-07 | 2012-08-22 | 山东省联合农药工业有限公司 | Tetrafluorophenoxy nicotinamide compound as well as preparation method and application thereof for sterilizing |
| CN102845427B (en) * | 2012-09-19 | 2014-06-25 | 山东省联合农药工业有限公司 | Fungicide composition of fluoride containing ether bacteria amide and validamycin |
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