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Emulsion in water containing trichlorphon and applications thereof

A technology of trichlorfon and water-emulsion, which is applied to the water-emulsion containing trichlorfon and its application field, which can solve the problem that the control effect is not as good as before, and achieve the effects of reducing the dosage, alleviating the resistance of pests, and delaying the resistance of pests

Inactive Publication Date: 2015-05-20
许海波
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to continuous use for many years, coupled with the problem of cross-resistance with organophosphorus and carbamates, pests generally develop strong resistance to this type of pesticide, and the control effect is not as good as before.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084]40% emulsion in water: combination of beta-cypermethrin and trichlorfon

[0085] Trichlorfon 20%,

[0086] Beta-cypermethrin 20%,

[0087] Turpentine 10%,

[0088] Tributyl phosphate 3%,

[0089] Calcium dodecylbenzenesulfonate 10%,

[0090] Gum Arabic 1%,

[0091] Urea 3%,

[0092] The balance is water.

[0093] The preparation method is a conventional method in the art.

[0094] This embodiment medicament is applied to control leaf tortrix:

[0095] Co-toxicity coefficient: 433.9;

[0096] Add water to dilute the spray by 4000 times, the control effect is 99.6% 7 days after the application, dilute 2000 times with 20% beta-cypermethrin suspending agent and 2000 times with 20% trichlorfon emulsifiable concentrate, use the same method respectively, 7 days after the application, The control effects were 71.3% and 73.2%, respectively, with significant differences.

Embodiment 2

[0098] 24% emulsion in water: combination of beta-cypermethrin and trichlorfon

[0099] Trichlorfon 20%,

[0100] Beta-cypermethrin 4%,

[0101] Turpentine 15%,

[0102] Tributyl phosphate 4%,

[0103] Calcium dodecylbenzenesulfonate 5%,

[0104] Gum Arabic 3%,

[0105] Urea 7%,

[0106] The balance is water.

[0107] The preparation method is a conventional method in the art.

[0108] This embodiment medicament is applied to control leaf miner:

[0109] Co-toxicity coefficient: 376.1;

[0110] Add water to dilute the spray by 3000 times, and the control effect is 97.4% 7 days after the application. 4% beta-cypermethrin suspending agent is diluted 200 times and 20% trichlorfon emulsifiable concentrate is diluted 2000 times. Use the same method respectively, 7 days after the application, The control effects were 76.5% and 64.5%, respectively, and the difference was significant.

Embodiment 3

[0112] 45% emulsion in water: combination of beta-cypermethrin and trichlorfon

[0113] Trichlorfon 30%,

[0114] Beta-cypermethrin 15%,

[0115] Turpentine 13%,

[0116] Tributyl phosphate 5%,

[0117] Calcium dodecylbenzenesulfonate 15%,

[0118] Gum Arabic 2%,

[0119] Urea 10%,

[0120] The balance is water.

[0121] The preparation method is a conventional method in the art.

[0122] This embodiment medicament is applied to control lamp moth:

[0123] Co-toxicity coefficient: 403.5;

[0124] Add water to dilute the spray by 5000 times, and the control effect is 98.7% 7 days after the application. The 15% beta-cypermethrin suspending agent is diluted 1000 times and the 30% trichlorfon emulsifiable concentrate is diluted 2000 times. Use the same method, 7 days after the application, The control effects were 71.7% and 70.1%, respectively, with significant differences.

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Abstract

The invention belongs to the technical field of pesticide compounding, and specifically relates to an emulsion in water containing trichlorphon and applications thereof. The effective components in the emulsion in water are high-efficient trans-cypermethrin and trichlorphon, wherein the weight ratio of trichlorphon to high-efficient trans-cypermethrin is in a range of 5:1 to 1:5. The compounding composition effectively solves the problem of generation of drug resistance of insects, maximally relieves the problem of drug resistance of insects, thus reduces the using amount of pesticide, reduces the pollution to the environment, is accord with the trends of green and environment-friendliness in the future society, and obtains an optimum crop protection effect.

Description

technical field [0001] The invention belongs to the technical field of compounding pesticides and insecticides, and specifically relates to an aqueous emulsion containing trichlorfon and its application. Background technique [0002] trichlorfon [0003] Scientific name: 0,0-dimethyl-(2,2,2-trichloro-1-hydroxyethyl) phosphate [0004] CAS No.: 52-68-6 [0005] Molecular formula: C 4 h 8 C 13 o 4 P [0006] Molecular weight: 257.45 [0007] Appearance and properties: The pure product is white crystal with aldehyde smell. [0008] Melting point (°C): 83~84 [0009] Boiling point (°C): 100 (13.33kPa) [0010] Relative density (water=1): 1.73 [0011] Saturated vapor pressure (kPa): 13.33 (100°C) [0012] Log value of octanol / water partition coefficient: 0.48 [0013] Solubility: Solubility in water (20°C) 120g / L, soluble in most organic solvents, but insoluble in aliphatic hydrocarbons and petroleum, hexane 0.1-1, dichloromethane, isopropanol > 200, toluene 20-5...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N57/20A01N25/04A01P7/04A01N53/08
Inventor 迟宗磊丁振洋
Owner 许海波
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