CN103688990A - Theta-cypermethrin and methidathion containing suspoemulsion and application thereof - Google Patents
Theta-cypermethrin and methidathion containing suspoemulsion and application thereof Download PDFInfo
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- CN103688990A CN103688990A CN201310655145.0A CN201310655145A CN103688990A CN 103688990 A CN103688990 A CN 103688990A CN 201310655145 A CN201310655145 A CN 201310655145A CN 103688990 A CN103688990 A CN 103688990A
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- methidathion
- cypermethrin
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Abstract
The invention belongs to the technical field of pesticide compounding, and particularly relates to theta-cypermethrin and methidathion containing suspoemulsion and an application thereof. The effective components of the suspoemulsion are theta-cypermethrin and methidathion, wherein the weight ratio of the methidathion to the theta-cypermethrin is 1:1-20:1. The theta-cypermethrin and methidathion containing suspoemulsion can be used for relieving the present pest resistance to insecticide to the greatest degree, thus the dosage of pesticide is reduced, and the influence on environments is also mitigated. The theta-cypermethrin and methidathion containing suspoemulsion is in line with the green and environmental protection trend of future society and has the optimal crop protection effect.
Description
Technical field
The invention belongs to the composite technical field of agricultural chemical insecticide, be specially suspension emulsion and the application of a kind of beta-cypermethrin and methidathion.
Background technology
Methidathion
One of English name of methidathion is Methidathion, CAS 950-37-8, molecular formula C
6h
11n
2o
4pS
3, molecular weight 302.3313.
Sterling is colourless crystallization.Relative density 1.495 (20 ℃), in the time of 20 ℃, solvability is: cyclohexanone 850g/kg, acetone 690g/kg, dimethylbenzene 600g/kg, ethanol 260g/kg, water 250mg/kg.
Have and tag and stomach poison function; There is osmosis, but without systemic action; Wide spectrum, high malicious Insecticidal and acaricidal agent, be a kind of comparatively ideal scale insect medicament that kills, and can doublely control mite class, aleyrodid, aphid.
But its action effect is also very single, after large-scale application, resistance risk is also very high.
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.
Summary of the invention
The object of the present invention is to provide a kind of suspension emulsion and application thereof that has beta-cypermethrin and methidathion; said composition active ingredient is beta-cypermethrin and methidathion; wherein the weight ratio of beta-cypermethrin and methidathion is; methidathion: beta-cypermethrin=1:1-20:1; 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.
Technical scheme of the present invention is:
A suspension emulsion for beta-cypermethrin and methidathion, active ingredient is beta-cypermethrin and methidathion, wherein the weight ratio of beta-cypermethrin and methidathion is, methidathion: beta-cypermethrin=1:1-20:1.
As preferably, the weight ratio of beta-cypermethrin and methidathion is, methidathion: beta-cypermethrin=5:1-10:1.
The suspension emulsion of beta-cypermethrin of the present invention and methidathion, it consists of following component by weight percentage:
Methidathion 5-80%,
Beta-cypermethrin 1-5%,
As preferably, the suspension emulsion of beta-cypermethrin of the present invention and methidathion, it consists of following component by weight percentage:
Methidathion 5-50%,
Beta-cypermethrin 1-5%,
As further preferred, the suspension emulsion of beta-cypermethrin of the present invention and methidathion, it consists of following component by weight percentage:
Methidathion 10-40%,
Beta-cypermethrin 2-4%,
Wherein, the total weight percentage of described active ingredient is 20～50%.
The suspension emulsion of beta-cypermethrin of the present invention and methidathion, for preventing and treating the insect of the crops such as apple, oranges and tangerines, vegetables, cotton and wheat, as scale insect, cotton leafhopper, cotton leaf bug, cotten aphid, two-spotted spider mite, cotton bollworm, clover curculionid, be particularly useful for preventing and treating apple scale insect.
Beneficial effect of the present invention is:
Said composition is compound suspend emulsion composition, compare with single product, the feature with binary composition, strengthened significantly effect, delay the generation of pest resistance to insecticide, and expanded effective active control spectrum, and thering is speed fast, the 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, met the trend of future society environmental protection.The control efficiency of composition of the present invention is especially good to control apple scale insect, is mainly by the result of the synergistic function between each component.
To the compound synergic research of composition of the present invention, test adopts apple scale insect for test.
Concrete grammar is: 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 apple scale insect
| Process | Co-toxicity coefficient |
| Beta-cypermethrin 1: methidathion 1 | 202.1 |
| Beta-cypermethrin 1: methidathion 5 | 267.7 |
| Beta-cypermethrin 1: methidathion 10 | 236.8 |
| Beta-cypermethrin 1: methidathion 15 | 201.5 |
| Beta-cypermethrin 1: methidathion 20 | 176.3 |
| Beta-cypermethrin | ? |
| Methidathion | ? |
As can be seen from Table 1, beta-cypermethrin and methidathion composite, has very high synergistic effect, especially methidathion: during beta-cypermethrin=5:1-10:1, synergistic effect is more obvious, and especially detailed to the effect of apple scale insect.
Embodiment
Below by specific embodiment, technical scheme of the present invention is described in detail.
Embodiment 1
The composition of 36% beta-cypermethrin and methidathion
Methidathion 30%,
Beta-cypermethrin 6%,
Preparation method is the conventional method of this area.
This embodiment medicament is applied to prevent and treat cotton leafhopper:
Co-toxicity coefficient is: 256.4;
By 1000 times of thin up sprayings, after medicine, 7 days control efficiency are that 97.6%, 6% 200 times of beta-cypermethrin suspending agent dilutions and 30% methidathion missible oil dilute 600 times, with same method, use respectively, after medicine 7 days, control efficiency was respectively 80.0% and 71.5%, significant difference.
Embodiment 2
The composition of 44% beta-cypermethrin and methidathion
Beta-cypermethrin 4%,
Methidathion 40%,
Preparation method is the conventional method of this area.
This embodiment medicament is applied to prevent and treat two-spotted spider mite:
Co-toxicity coefficient is: 203.9;
By 1000 times of thin up sprayings, after medicine, 7 days control efficiency are that 97.8%, 4% 300 times of beta-cypermethrin suspending agent dilutions and 40% methidathion missible oil dilute 800 times, with same method, use respectively, after medicine 7 days, control efficiency was respectively 73.7% and 63.2%, significant difference.
Embodiment 3
The composition of 24% beta-cypermethrin and methidathion
Beta-cypermethrin 3%,
Methidathion 21%,
Preparation method is the conventional method of this area.
This embodiment medicament is applied to prevent and treat apple scale insect:
Co-toxicity coefficient is: 308.3;
By 1000 times of thin up sprayings, after medicine, 7 days control efficiency are that 99.1%, 3% 1000 times of beta-cypermethrin suspending agent dilutions and 21% methidathion missible oil dilute 2000 times, with same method, use respectively, after medicine 7 days, control efficiency was respectively 76.1% and 69.5%, significant difference.
Claims (8)
1. a suspension emulsion for beta-cypermethrin and methidathion, active ingredient is beta-cypermethrin and methidathion, wherein the weight ratio of beta-cypermethrin and methidathion is, methidathion: beta-cypermethrin=1:1-20:1.
2. the suspension emulsion of beta-cypermethrin according to claim 1 and methidathion, is characterized in that, the weight ratio of beta-cypermethrin and methidathion is, methidathion: beta-cypermethrin=5:1-10:1.
3. the suspension emulsion of beta-cypermethrin according to claim 1 and methidathion, is characterized in that, it consists of following component by weight percentage:
Methidathion 5-80%,
Beta-cypermethrin 1-5%,
4. the suspension emulsion of beta-cypermethrin according to claim 3 and methidathion, is characterized in that, it consists of following component by weight percentage:
Methidathion 5-50%,
Beta-cypermethrin 1-5%,
5. the suspension emulsion of beta-cypermethrin according to claim 4 and methidathion, is characterized in that, it consists of following component by weight percentage:
Methidathion 10-40%,
Beta-cypermethrin 2-4%,
6. according to the beta-cypermethrin described in the arbitrary claim of claim 1-5 and the suspension emulsion of methidathion, it is characterized in that, wherein, the total weight percentage of described active ingredient is 20～50%.
7. according to the beta-cypermethrin described in the arbitrary claim of claim 6 and the suspension emulsion of methidathion, for preventing and treating the insect of the crops such as apple, oranges and tangerines, vegetables, cotton and wheat, as scale insect, cotton leafhopper, cotton leaf bug, cotten aphid, two-spotted spider mite, cotton bollworm, clover curculionid.
8. the suspension emulsion of beta-cypermethrin according to claim 7 and methidathion, for preventing and treating apple scale insect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310655145.0A CN103688990A (en) | 2013-12-06 | 2013-12-06 | Theta-cypermethrin and methidathion containing suspoemulsion and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310655145.0A CN103688990A (en) | 2013-12-06 | 2013-12-06 | Theta-cypermethrin and methidathion containing suspoemulsion and application thereof |
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|---|---|
| CN103688990A true CN103688990A (en) | 2014-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310655145.0A Pending CN103688990A (en) | 2013-12-06 | 2013-12-06 | Theta-cypermethrin and methidathion containing suspoemulsion and application thereof |
Country Status (1)
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1037821A (en) * | 1988-04-07 | 1989-12-13 | 奇诺英药物化学工厂有限公司 | Plant protection product |
| CN1031240C (en) * | 1987-11-18 | 1996-03-13 | 奇诺英药物化学工厂有限公司 | Pesticide composition |
| WO2003051116A1 (en) * | 2001-12-14 | 2003-06-26 | Mars, Incorporated | Microencapsulated insecticide |
-
2013
- 2013-12-06 CN CN201310655145.0A patent/CN103688990A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1031240C (en) * | 1987-11-18 | 1996-03-13 | 奇诺英药物化学工厂有限公司 | Pesticide composition |
| CN1037821A (en) * | 1988-04-07 | 1989-12-13 | 奇诺英药物化学工厂有限公司 | Plant protection product |
| WO2003051116A1 (en) * | 2001-12-14 | 2003-06-26 | Mars, Incorporated | Microencapsulated insecticide |
Non-Patent Citations (1)
| Title |
|---|
| 胡艳红: "松突圆蚧化学防治的研究", 《福建农林大学硕士学位论文》, 15 December 2004 (2004-12-15) * |
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Application publication date: 20140402 |