CN104304285A - Compound insecticidal water emulsion agent for preventing and treating contariniapyrivora - Google Patents
Compound insecticidal water emulsion agent for preventing and treating contariniapyrivora Download PDFInfo
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- CN104304285A CN104304285A CN201410584209.7A CN201410584209A CN104304285A CN 104304285 A CN104304285 A CN 104304285A CN 201410584209 A CN201410584209 A CN 201410584209A CN 104304285 A CN104304285 A CN 104304285A
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- chitosan oligosaccharide
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Abstract
The invention relates to a compound insecticidal water emulsion agent for preventing and treating contariniapyrivora. Effective components in the compound insecticidal water emulsion agent are chitosan oligosaccharide and azadirachtin. The compound insecticidal water emulsion agent has a good prevention effect on contariniapyrivora; with the synergism effect of chitosan oligosaccharide with a plant growth promotion function and azadirachtin with insecticidal activity, the prevention on contariniapyrivora is effectively increased, the obvious prevention effect can be realized in the early stage or the later stage of morbidity, and the optimal dosage period is long.
Description
Technical field
The present invention relates to a kind of compound insecticidal aqueous emulsion for preventing and treating pears cecidomyiia, being specifically related to a kind of chitosan oligosaccharide for preventing and treating pears cecidomyiia and azadirachtin complex aqueous emulsion, belonging to field of biological pesticide.
Background technology
Pear tree is all occupied first place in the world in the area under cultivation of China and output, and according to FAO (Food and Agriculture Organization of the United Nation) (FAO) statistics, Chinese pear tree in 2009 area of receiving is 125.8 ten thousand per hectares, accounts for 72.3% of world's pears gross area; Gross annual output amount is 1438.8 ten thousand tons, accounts for 65.7% of Gross World Product.Pears cecidomyiia was pear tree minor pests in the past, caused harm comparatively light, but in recent years all occurred seriously, to have become the primary pest of pears, easily caused pear tree early leaf fall and obviously affect yield and quality in the main pears producing region of China.Current control pears cecidomyiia is mainly to spray the chemical insecticide such as killing logvalue, Imidacloprid, but chemical control is easily developed immunity to drugs, and cannot apply in Organic pear orchard.
Chitosan oligosaccharide and Chitosan poly oligosaccharide, also claim chitin oligo saccharide, formal name used at school β-Isosorbide-5-Nitrae-oligosaccharides-gucosamine, and being a kind of product obtained through special biological enzyme technology process by shitosan, is a kind of good water solubility, and function is large, the low molecular weight product that biologically active is high.Chitosan oligosaccharide, by being adsorbed on bacterial cell surface, forming one deck polymeric membrane, thus plays restraining and sterilizing bacteria effect; Another kind of mechanism is that chitosan oligosaccharide passes through to penetrate in bacterial cell body, the cytoplasm with anion in cyton is flocculated, upsets the normal physiological activity of cell, thus kill bacteria.In general, molecular weight is larger, and the outer membrane formed is finer and close, nutriment more can be stoped to enter bacterial cell, thus antibacterial action successful; Molecular weight is less, more easily enters in the gap structure of cell wall, thus the metabolism of interference cell, bactericidal action is obvious.Chitosan oligosaccharide itself, containing abundant carbon and nitrogen, can be decomposed by the microorganisms and to utilize and as the nutrient of plant growth, chitosan oligosaccharide can promote that beneficial microorganism grows and suppresses some phytopathogens.Chitosan oligosaccharide also can stimulating plant growth and the disease resistance of inducing plant, has direct repression to a certain degree to various plants pathogen.
Nimbin is the vegetable insecticide extracted from print chinaberry, and its sterling is white amorphous substance, is soluble in methyl alcohol, ethanol, acetone, methyl-sulfoxide polar organic solvent.Nimbin is outstanding biopesticide recognized in the world, for one of the Typical Representative of botanical pesticide, to insect children food refusal, interference lay eggs, interference insect variation, make it change in quality and reach desinsection object for adult, repellent larva and the effect that suppresses it to grow, be widely used in preventing and treating the various pests on the crops such as vegetables, fruit tree, be a kind of efficient, low-residual and high selectivity and the harmless boilogical agricultural chemicals not easily developed immunity to drugs.To people, animal, birds and honeybee safety, predatism and parasite are disturbed less, without obvious poisoning, easily degraded in the environment.China's South Guangdong, Hainan, Yunnan and some areas, Sichuan are establishing in large scale print chinaberry.
In prior art, the usage amount of agricultural chemicals is increasing, not only makes crop produce resistance, also bringing serious pollution to environment, for the problems referred to above, the invention provides a kind of compound insecticidal aqueous emulsion for preventing and treating pears cecidomyiia.
Technical scheme of the present invention is as follows:
For preventing and treating a compound insecticidal aqueous emulsion for pears cecidomyiia, active ingredient is chitosan oligosaccharide and nimbin.In the present invention, active ingredient is counted by weight: chitosan oligosaccharide 0.1-5 part, nimbin 0.1-5 part; Preferably, chitosan oligosaccharide 1-3.5 part, nimbin 1.5-3.5 part; Preferred, chitosan oligosaccharide 2-3 part, nimbin 2-3 part; Most preferred, chitosan oligosaccharide 2.5 parts, nimbin 3 parts.
Further, composite aqueous emulsion of the present invention, emulsifier is triphenoethyl benzene phenol polyethenoxy ether phosphate, solvent is toluene, and stabilizing agent is epoxychloropropane, and antifreezing agent is ethylene glycol, thickener is xanthans, and preservative is the composition that benzoic acid mixes with arbitrary proportion with Sodium Benzoate.Preferably, the mass ratio of benzoic acid and Sodium Benzoate is 2:1.
The extension rate during dispenser of composite aqueous emulsion of the present invention be 500-5000 doubly; Preferably, extension rate during dispenser is 2000 times.
The present invention has extraordinary control efficiency to pears cecidomyiia, the present invention utilizes between the Promoting plant growth effect of chitosan oligosaccharide and the insecticidal activity of nimbin has the collaborative effect be added, effectively enhance the control to pears cecidomyiia, morbidity early stage or morbidity later stage all can reach control efficiency significantly, and medication optimum period is long.
Summary of the invention
Embodiment
Further describe the present invention below in conjunction with specific embodiment, advantage and disadvantage of the present invention will be more clear along with description.But embodiment is only exemplary, does not form any restriction to scope of the present invention.It will be understood by those skilled in the art that and can modify to the details of technical solution of the present invention and form or replace down without departing from the spirit and scope of the present invention, but these amendments and replacement all fall within the scope of protection of the present invention.
Embodiment 1 one kinds is for preventing and treating the compound insecticidal aqueous emulsion of pears cecidomyiia
Each raw materials by weight portion meter:
Chitosan oligosaccharide 2.5 parts, nimbin 3 parts, triphenoethyl benzene phenol polyethenoxy ether phosphoesterase 30 .5 part, the composition (mass ratio of benzoic acid and Sodium Benzoate is 2:1) 1 part of epoxychloropropane 0.3 part, ethylene glycol 1 part, xanthans 1.5 parts, benzoic acid and Sodium Benzoate, toluene 90 parts.
By above-mentioned raw materials routinely preparation technology be prepared into agricultural insecticidal aqueous emulsion, during dispenser, the present invention is diluted to 2000 times.
Embodiment 2 one kinds is for preventing and treating the compound insecticidal aqueous emulsion of pears cecidomyiia
Each raw materials by weight portion meter:
Chitosan oligosaccharide 0.5 part, nimbin 4 parts, triphenoethyl benzene phenol polyethenoxy ether phosphoesterase 30 .6 part, the composition (mass ratio of benzoic acid and Sodium Benzoate is 1:1) 1 part of epoxychloropropane 0.5 part, ethylene glycol 1 part, xanthans 1.3 parts, benzoic acid and Sodium Benzoate, toluene 90 parts.
By above-mentioned raw materials routinely preparation technology be prepared into agricultural insecticidal aqueous emulsion, during dispenser, the present invention is diluted to 2000 times.
Embodiment 3 one kinds is for preventing and treating the compound insecticidal aqueous emulsion of pears cecidomyiia
Each raw materials by weight portion meter:
Chitosan oligosaccharide 4.5 parts, nimbin 1 part, triphenoethyl benzene phenol polyethenoxy ether phosphoesterase 30 .4 part, epoxychloropropane 0.5 part, ethylene glycol 1.5 parts, xanthans 1 part, 1.5 parts, benzoic acid, toluene 90 parts.
By above-mentioned raw materials routinely preparation technology be prepared into agricultural insecticidal aqueous emulsion, during dispenser, the present invention is diluted to 2000 times.
Test example 1 the present invention is to the field efficacy evaluation test of pears cecidomyiia
Field efficacy evaluation test is carried out in Laiyang Shandong Province theatre, and reagent agent is nimbin, embodiment 1, embodiment 2, embodiment 3 dose out powders, all by 15,45,90mg/L drug concentration sprays; Be contrast medicament with 0.5% nimbin emulsion (commercially available, spraying medicine concentration is 15,45,90mg/L) and 10% imidacloprid wettable powder (commercially available, spraying medicine concentration is 67mg/L), and establish clear water to contrast (CK).
Randomised block design, every community processes 3 strain pear trees, often processes repetition 3 times.Spraying time is the larva harm initial stage in May, 2013.Before spray medicine, often tree presses the random listing mark extending shoot in East, West, South, North 5 orientation 1, investigation insect population radix; First be watered spraying again with after a small amount of water-soluble solution reagent agent, reverse side even medicine, till dripping.Respectively at investigation in 1,7,14 day borer population alive after spray medicine, calculate Revision insect recluced rate and preventive effect, computing formula is as follows:
Borer population × 100 before Revision insect recluced rate (%)=(before spray medicine after borer population-spray medicine borer population)/spray medicine;
Preventive effect (%)=(process Revision insect recluced rate-contrast Revision insect recluced rate)/(100-contrasts Revision insect recluced rate) × 100.
The field control effect of the present invention to pears cecidomyiia is as shown in table 1:
As shown in Table 1, after the present invention's 3 compound insecticidal aqueous emulsion spray medicines, the preventive effect of 1 day is 70.89%-82.31%, and be preferably embodiment 2 compound insecticidal aqueous emulsion, reason may be the proportioning of nimbin and chitosan oligosaccharide in the present embodiment is optimum proportioning; Spray medicine after 7 days preventive effects be 87.21%-91.23%, the highest preventive effect be also embodiment 2 join disinsection aqueous emulsion; After spray medicine 14 days, preventive effect was that the control efficiency to pears cecidomyiia of 90.89%-94.32%. compounded pesticides of the present invention is all higher than the contrast nimbin emulsion of medicament 0.5% and 10% imidacloprid wettable powder.The 7th day after administration, the preventive effect of compound insecticidal aqueous emulsion of the present invention was all higher than 87%, and the 14th day, preventive effect was all higher than 90%, and therefore, the present invention is to pears cecidomyiia instant effect, and the lasting period is long.
Table 1 compound insecticidal aqueous emulsion of the present invention is to the field control effect of pears cecidomyiia
Claims (9)
1. for preventing and treating a compound insecticidal aqueous emulsion for pears cecidomyiia, it is characterized in that, in described compound insecticidal aqueous emulsion, active ingredient is chitosan oligosaccharide and nimbin.
2. compound insecticidal aqueous emulsion according to claim 1, is characterized in that, described active ingredient is counted by weight: chitosan oligosaccharide 0.1-5 part, nimbin 0.1-5 part.
3. compound insecticidal aqueous emulsion according to claim 2, is characterized in that, described active ingredient is counted by weight: chitosan oligosaccharide 1-3.5 part, nimbin 1.5-3.5 part.
4. compound insecticidal aqueous emulsion according to claim 3, is characterized in that, described active ingredient is counted by weight: chitosan oligosaccharide 2-3 part, nimbin 2-3 part.
5. compound insecticidal aqueous emulsion according to claim 4, is characterized in that, described active ingredient is counted by weight: chitosan oligosaccharide 2.5 parts, nimbin 3 parts.
6. the compound insecticidal aqueous emulsion according to any one of claim 1-4, it is characterized in that, in described composite aqueous emulsion, emulsifier is triphenoethyl benzene phenol polyethenoxy ether phosphate, solvent is toluene, and stabilizing agent is epoxychloropropane, and antifreezing agent is ethylene glycol, thickener is xanthans, and preservative is the composition that benzoic acid mixes with arbitrary proportion with Sodium Benzoate.
7. compound insecticidal aqueous emulsion according to claim 6, is characterized in that, the mass ratio of described benzoic acid and Sodium Benzoate is 2:1.
8. the compound insecticidal aqueous emulsion according to any one of claim 1-4, is characterized in that, extension rate during described composite aqueous emulsion dispenser is 500-5000 times.
9. compound insecticidal aqueous emulsion according to claim 8, is characterized in that, extension rate during described composite aqueous emulsion dispenser is 2000 times.
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| CN201410584209.7A CN104304285B (en) | 2014-10-28 | 2014-10-28 | Compound insecticidal water emulsion agent for preventing and treating contariniapyrivora |
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| CN201410584209.7A CN104304285B (en) | 2014-10-28 | 2014-10-28 | Compound insecticidal water emulsion agent for preventing and treating contariniapyrivora |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010125065A2 (en) * | 2009-04-28 | 2010-11-04 | Bayer Cropscience Ag | Compositions comprising a strigolactone compound and a chito-oligosaccharide compound for enhanced plant growth and yield |
| CN103004855A (en) * | 2012-11-26 | 2013-04-03 | 海南正业中农高科股份有限公司 | Composition containing oligosaccharide and anabasine insecticide components |
| CN103141488A (en) * | 2013-01-25 | 2013-06-12 | 浙江农林大学 | Pesticide compounded by azadirachtin and cnidium lactone and preparation method thereof |
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2014
- 2014-10-28 CN CN201410584209.7A patent/CN104304285B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010125065A2 (en) * | 2009-04-28 | 2010-11-04 | Bayer Cropscience Ag | Compositions comprising a strigolactone compound and a chito-oligosaccharide compound for enhanced plant growth and yield |
| CN103004855A (en) * | 2012-11-26 | 2013-04-03 | 海南正业中农高科股份有限公司 | Composition containing oligosaccharide and anabasine insecticide components |
| CN103141488A (en) * | 2013-01-25 | 2013-06-12 | 浙江农林大学 | Pesticide compounded by azadirachtin and cnidium lactone and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 杨志萍 等: "植物农药发展现状及前景", 《植物医生》, vol. 18, no. 2, 31 December 2005 (2005-12-31), pages 4 - 5 * |
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Inventor after: Wang Xu Inventor before: Wang Hongtao Inventor before: Duan Xuewen Inventor before: Qu Lijun Inventor before: Quan Weiyu Inventor before: Zhu Liping |
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Effective date of registration: 20161009 Address after: 266000 Shandong province Qingdao City, Shandong Road No. 109 Building No. 3 3102 Taiwan Jing Applicant after: QINGDAO JINZHI HIGH AND NEW TECHNOLOGY CO., LTD. Address before: 250062, No. ten, No. 16369, Lixia District, Ji'nan City, Shandong Province Applicant before: SHANDONG ZHONGDA PHARMACEUTICAL CO., LTD. |
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Effective date of registration: 20201112 Address after: 221000 No.17 Fuxing Road, Lingang Industrial Park, Pizhou City, Xuzhou City, Jiangsu Province Patentee after: Jiangsu megme Energy Saving Technology Co.,Ltd. Address before: 266000 Shandong province Qingdao City, Shandong Road No. 109 Building No. 3 3102 Taiwan Jing Patentee before: QINGDAO JINZHI HI-TECH Co.,Ltd. |