CN103583552A - Composition for preventing and controlling rice planthoppers - Google Patents
Composition for preventing and controlling rice planthoppers Download PDFInfo
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- CN103583552A CN103583552A CN201310587676.0A CN201310587676A CN103583552A CN 103583552 A CN103583552 A CN 103583552A CN 201310587676 A CN201310587676 A CN 201310587676A CN 103583552 A CN103583552 A CN 103583552A
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- pymetrozine
- cypermethrin
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Abstract
The invention belongs to the technical field of pesticide compounds and in particular relates to a composition for preventing and controlling rice planthoppers. The effective ingredients of the composition are theta-cypermethrin and pymetrozine with a weight ratio of (5 to 1) to (15 to 1). Therefore, the usage amount of pesticides is reduced, the environmental influence is alleviated, the green and environment-friendly requirements of future society are met, and the best crop protection effect of the composition is achieved.
Description
Technical field
The invention belongs to the composite technical field of agricultural chemical insecticide, be specially a kind of for preventing and treating the composition of rice fulgorid.
Background technology
beta-cypermethrin
English name: theta-cypermethrin
Molecular formula: C
22h
19c
i2nO
3
Chemical name: (S) a-cyano group-3-phenoxy benzyl (1R, 3S)-3-(2,2-dichloro dialkylene)-2,2-dimethyl cyclopropane carboxylic acid ester and (R)-a-cyano group-3-phenoxy benzyl (1S, 3R)-3-(2,2-dichloroethylene)-2,2-dimethyl cyclopropane carboxylic acid ester
Chemical classes: pyrethroid
Physicochemical property: outward appearance is white or light yellow crystalline powder, without visible exogenous impurity.1.219g/m during 25 ℃ of proportions
3; Fusing point 78-81 ℃; Vapour pressure (20 ℃) 2.3 * (10 negative 7) Pa; Under normal temperature, in water, solvability is extremely low, dissolves in ketone, alcohols and aromatic hydrocarbon solvent.
Effect feature: theta-cypermethrin is to belong to third generation pyrethroid insecticides, be mainly used in the control of the domestic hygiene insects such as the agriculture and forestry injurious insects such as field crop, economic crops, vegetables, fruit tree and vegetables, mosquito class bedbug and have that virus killing is efficient, wide spectrum, to people and animals' low toxicity, effect rapidly, the feature such as holding effect is long, have and tag and stomach toxicity, ovicidal, insect is had to the effects such as antifeedant activity, but all there is no systemic action.Resistance of rainwater washing against, has special efficacy to the insect that organophosphorous pesticide has reached resistance especially.Due to use for years, in addition with the cross resistance problem of organic phosphates, carbamates, make insect generally to such medicament, produce very strong pesticide resistance, preventive effect is not equal to before.
pymetrozine
Another name: pyrazinones
Affiliated classification: insecticide
No. CAS: 123312-89-0
Molecular formula: C
10h
11n
5o
Molecular weight: 217.23
Chemical name: 4,5-dihydro-6-methyl-4-(3-pyridine methylene is amino)-1,2,4-3 (2H)-one
Physicochemical property:
Outward appearance: white crystalline powder.
Fusing point: 217 ℃.
Solvability (20 ℃, g/l): water, 0.27; Ethanol, 2.25; Normal hexane, <0.01.
Stability: to light, thermally-stabilised, stable under weak acid and weak base condition.
Action principle:
Pymetrozine belongs to pyridines or Triazinone insecticide, is the brand-new non-insects agent of killing livestock, and is developed the earliest by Switzerland Ciba-Geigy company in 1988, and this product shows excellent control efficiency to the sucking pest of various crop.Pymetrozine has action of contace poison to insect, also has systemic activity simultaneously.Can also can be at phloem transport in xylem transporting in plant corpus; Therefore both can be used as foliar spray, also can be used for soil treatment.Due to its good transporting characteristic, the branches and leaves that newly grow after cauline leaf spraying also can be effectively protected.Along with large-scale medication, after its application, resistance risk is also very high.
Summary of the invention
The object of the present invention is to provide a kind of for preventing and treating the composition of rice fulgorid; said composition active ingredient is beta-cypermethrin and pymetrozine; wherein the weight ratio of beta-cypermethrin and pymetrozine is; beta-cypermethrin: pymetrozine=5:1-15:1; thereby reduced the consumption of agricultural chemicals; also alleviated the impact for environment, met the trend of future society environmental protection, composition of the present invention is received best crop protection effect.
Technical scheme of the present invention is:
For preventing and treating a composition for rice fulgorid, active ingredient is beta-cypermethrin and pymetrozine, and wherein the weight ratio of beta-cypermethrin and pymetrozine is, beta-cypermethrin: pymetrozine=5:1-15:1.
As preferably, the weight ratio of beta-cypermethrin and pymetrozine is, beta-cypermethrin: pymetrozine=7:1-12:1.
Wherein, the total weight percentage of described active ingredient is 1～90%.
As preferably, the total weight percentage of described active ingredient is 20～50%.
The composition of beta-cypermethrin of the present invention and pymetrozine, adds auxiliary agent and excipients, makes various preparations, comprises wetting powder, suspending agent, water dispersible granules, aqueous emulsion or missible oil; Be preferably aqueous emulsion.
Described auxiliary agent and excipients comprise: solvent, emulsifier, antifreeze, defoamer, thickener, carrier or filler, dispersant.
Described carrier, filler are selected from: one or more in white carbon, precipitated calcium carbonate, attapulgite, kaolin, diatomite, zeolite, river sand, talcum powder.
Described dispersant is selected from: to one or more in methoxyl group fatty acid Sodium p-aminobenzene sulfonat, sodium methylene bis-naphthalene sulfonate.
The composition of beta-cypermethrin of the present invention and pymetrozine, it consists of following component by weight percentage: beta-cypermethrin 15-40%, pymetrozine 1-10%, emulsifier 4-10%, solvent 10-15%, antifreezing agent 2-5%, defoamer 1-2%, thickener 0.5-3%, surplus is water.
Described solvent is one or both in toluene, dimethylbenzene, cyclohexanone, dimethyl formamide, ethyl acetate, vegetable oil.
Described emulsifier can be selected nonionic surface active agent or anionic surfactant.Described non-ionic surface active agent is one or more in phenethyl phenol polyethenoxy polyethenoxy ether, alkylphenol polyoxyethylene, fatty alcohol-polyoxyethylene ether, castor oil polyoxyethylene ether, phenethyl phenol polyethenoxy ether phosphate or alkylphenol polyoxyethylene phosphate; Described anion surfactant is one or more in alkyl benzene calcium sulfonate, sodium alkyl benzene sulfonate.
Described antifreezing agent is one or more in propane diols, glycerine, polyethylene glycol, urea.
Described defoamer is organic silicone oil or isooctanol.
Described thickener is one or more in xanthans, gum Arabic, CMC or polyvinyl alcohol.
The composition of beta-cypermethrin of the present invention and pymetrozine, for preventing and treating the rice fulgorid of vegetables, wheat, paddy rice, cotton, fruit tree.
Described rice fulgorid comprises small brown rice planthopper, brown planthopper, white-backed planthopper.
Beneficial effect of the present invention is:
Said composition is complex insecticidal composition, compare with single product, the feature with binary Pesticidal combination, strengthened significantly insecticidal effect, delay the generation of pest resistance to insecticide, and expanded effective active control spectrum, there is speed fast, lasting period is long, consumption is low, eco-friendly feature, the more important thing is, this compounded combination has effectively resisted the problem that pest resistance produces, farthest alleviated the problem of current pest resistance to insecticide, thereby reduced the consumption of agricultural chemicals, also alleviated the impact for environment, the trend that meets future society environmental protection, composition of the present invention is received best crop protection effect.
Compound synergic research to composition of the present invention, test adopts the small brown rice planthopper in field for test.
By method of least squares, calculate virulence equation and lethal concentration of 50 LC50, according to the abundant method of Sun Yun, calculate the toxicity index of medicament and mixed co-toxicity coefficient (CTC value).
The toxicity test result of the different proportion relations of table 1 to small brown rice planthopper
| Process | LC50（PPM） | Co-toxicity coefficient |
| Beta-cypermethrin 5: pymetrozine 1 | 0.852 | 570.3 |
| Beta-cypermethrin 7: pymetrozine 1 | 0.398 | 770.1 |
| Beta-cypermethrin 10: pymetrozine 1 | 0.623 | 860.2 |
| Beta-cypermethrin 15: pymetrozine 1 | 0.724 | 690.4 |
| Beta-cypermethrin | 22.45 | ? |
| Pymetrozine | 1.01 | ? |
As can be seen from Table 1, beta-cypermethrin and pymetrozine composite, co-toxicity coefficient is far longer than 120, has very high synergistic effect, especially beta-cypermethrin: during pymetrozine=7:1-12:1, synergistic effect is more obvious.
Embodiment
Below by specific embodiment, technical scheme of the present invention is described in detail.
embodiment 1
33% aqueous emulsion: the composition of beta-cypermethrin and pymetrozine
Beta-cypermethrin 30%,
Pymetrozine 3%,
Phenethyl phenol polyethenoxy ether phosphate 4%,
Propyl alcohol 10%,
Ethylene glycol 5%,
Organic silicone oil 1%,
Gum Arabic 3%,
Surplus is water.
Preparation method is the conventional method of this area.
This embodiment medicament is applied to prevent and treat the brown planthopper on paddy rice:
Co-toxicity coefficient is: 859.7;
By 3000 times of thin up sprayings, after medicine, 3 days control efficiency are that 98.7%, 30% 1000 times of beta-cypermethrin suspending agent dilutions and 3% pymetrozine missible oil dilute 500 times, with same method, use respectively, after medicine 3 days, control efficiency was respectively 80.6% and 70.2%, significant difference.
embodiment 2
16% aqueous emulsion: the composition of beta-cypermethrin and pymetrozine
Beta-cypermethrin 15%,
Pymetrozine 1%,
Phenethyl phenol polyethenoxy polyethenoxy ether 10%,
Cyclohexanone 15%,
Propane diols 2%,
Isooctanol 2%,
Polyvinyl alcohol 0.5%,
Surplus is water.
Preparation method is the conventional method of this area.
This embodiment medicament is applied to prevent and treat white-backed planthopper:
Co-toxicity coefficient is: 780.2;
By 2000 times of thin up sprayings, after medicine, 3 days control efficiency are that 97.1%, 15% 1000 times of beta-cypermethrin suspending agent dilutions and 1% pymetrozine missible oil dilute 500 times, with same method, use respectively, after medicine 3 days, control efficiency was respectively 77.5% and 70.3%, significant difference.
embodiment 3
46% aqueous emulsion: the composition of beta-cypermethrin and pymetrozine
Beta-cypermethrin 40%,
Pymetrozine 6%,
Sodium alkyl benzene sulfonate 7%,
Ethyl acetate 12%,
Polyethylene glycol 3%,
Organic silicone oil 2%,
CMC 2.5%,
Surplus is water.
Preparation method is the conventional method of this area.
This embodiment medicament is applied to prevent and treat small brown rice planthopper:
Co-toxicity coefficient is: 750.8;
By 3000 times of thin up sprayings, after medicine, 3 days control efficiency are that 99.0%, 40% 2000 times of beta-cypermethrin suspending agent dilutions and 6% pymetrozine missible oil dilute 200 times, with same method, use respectively, after medicine 3 days, control efficiency was respectively 78.5% and 69.3%, significant difference.
embodiment 4
80% wetting powder: the composition of beta-cypermethrin and pymetrozine
Beta-cypermethrin 70%,
Pymetrozine 10%,
Attapulgite 9%,
To methoxyl group fatty acid Sodium p-aminobenzene sulfonat 13%,
Precipitated calcium carbonate 4%,
Sodium methylene bis-naphthalene sulfonate 1%,
Surplus is talcum powder.
Preparation method is the conventional method of this area.
This embodiment medicament is applied to prevent and treat small brown rice planthopper:
Co-toxicity coefficient is: 720.3;
By 6000 times of thin up sprayings, after medicine, 3 days control efficiency are that 97.3%, 70% 4000 times of beta-cypermethrin suspending agent dilutions and 10% pymetrozine missible oil dilute 2000 times, with same method, use respectively, after medicine 3 days, control efficiency was respectively 78.9% and 69.1%, significant difference.
Claims (9)
1. for preventing and treating a composition for rice fulgorid, active ingredient is beta-cypermethrin and pymetrozine, and wherein the weight ratio of beta-cypermethrin and pymetrozine is, beta-cypermethrin: pymetrozine=5:1-15:1.
2. according to claim 1ly for preventing and treating the composition of rice fulgorid, it is characterized in that, the weight ratio of beta-cypermethrin and pymetrozine is, beta-cypermethrin: pymetrozine=7:1-12:1.
3. according to claim 1 and 2ly for preventing and treating the composition of rice fulgorid, it is characterized in that, the total weight percentage of described active ingredient is 1～90%.
4. according to claim 3ly for preventing and treating the composition of rice fulgorid, it is characterized in that, the total weight percentage of described active ingredient is 20～50%.
5. according to claim 4ly for preventing and treating the composition of rice fulgorid, it is characterized in that, its formulation is wetting powder, suspending agent, water dispersible granules, aqueous emulsion or missible oil.
6. according to claim 5ly for preventing and treating the composition of rice fulgorid, it is characterized in that, its formulation is aqueous emulsion.
7. according to claim 6 for preventing and treating the composition of rice fulgorid, it is characterized in that, it consists of following component by weight percentage: beta-cypermethrin 15-40%, pymetrozine 1-10%, emulsifier 4-10%, solvent 10-15%, antifreezing agent 2-5%, defoamer 1-2%, thickener 0.5-3%, surplus is water.
According to claim 1 for the composition of preventing and treating rice fulgorid for preventing and treating the rice fulgorid of vegetables, wheat, paddy rice, cotton, fruit tree.
9. according to claim 8ly for preventing and treating the composition of rice fulgorid, it is characterized in that, described rice fulgorid comprises small brown rice planthopper, brown planthopper, white-backed planthopper.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310587676.0A CN103583552A (en) | 2013-11-21 | 2013-11-21 | Composition for preventing and controlling rice planthoppers |
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|---|---|---|---|
| CN201310587676.0A CN103583552A (en) | 2013-11-21 | 2013-11-21 | Composition for preventing and controlling rice planthoppers |
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| CN103583552A true CN103583552A (en) | 2014-02-19 |
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| CN201310587676.0A Pending CN103583552A (en) | 2013-11-21 | 2013-11-21 | Composition for preventing and controlling rice planthoppers |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110876390A (en) * | 2019-12-09 | 2020-03-13 | 李延明 | Pepper seedling disease and pest control agent |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999025187A2 (en) * | 1997-11-14 | 1999-05-27 | Novartis Ag | Pesticidal compositions of emamectin |
| CN102017983A (en) * | 2009-09-22 | 2011-04-20 | 南京华洲药业有限公司 | Synergistic insecticidal composition containing pymetrozine and cypermethrin and application thereof |
| CN102349507A (en) * | 2011-09-13 | 2012-02-15 | 广西田园生化股份有限公司 | Pymetrozine-containing ultralow volume liquid agent |
| CN103053594A (en) * | 2011-10-18 | 2013-04-24 | 南京华洲药业有限公司 | Synergistic insecticidal composition containing tolfenpyrad and theta-cypermethrin and its application |
-
2013
- 2013-11-21 CN CN201310587676.0A patent/CN103583552A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999025187A2 (en) * | 1997-11-14 | 1999-05-27 | Novartis Ag | Pesticidal compositions of emamectin |
| CN102017983A (en) * | 2009-09-22 | 2011-04-20 | 南京华洲药业有限公司 | Synergistic insecticidal composition containing pymetrozine and cypermethrin and application thereof |
| CN102349507A (en) * | 2011-09-13 | 2012-02-15 | 广西田园生化股份有限公司 | Pymetrozine-containing ultralow volume liquid agent |
| CN103053594A (en) * | 2011-10-18 | 2013-04-24 | 南京华洲药业有限公司 | Synergistic insecticidal composition containing tolfenpyrad and theta-cypermethrin and its application |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110876390A (en) * | 2019-12-09 | 2020-03-13 | 李延明 | Pepper seedling disease and pest control agent |
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Application publication date: 20140219 |