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Pesticide composition containing bifenthrin and application of the composition

An insecticidal composition, bifenthrin technology, applied in the direction of insecticides, applications, acaricides, etc., can solve problems such as inability to complete molting, death, and dehydration of larvae

Inactive Publication Date: 2015-03-25
孙素一
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the pest eats the loyal minister, it will soon have an abnormal molt reaction, stop feeding, and molt early, but cannot complete the molt due to abnormal molt, resulting in dehydration and starvation of the larvae and death

Method used

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  • Pesticide composition containing bifenthrin and application of the composition
  • Pesticide composition containing bifenthrin and application of the composition
  • Pesticide composition containing bifenthrin and application of the composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 25% Bifenthrin · Fufenozide Suspension Concentrate is prepared, and the distribution ratio of each component is by weight:

[0025]

[0026] The preparation process is as follows: high-speed dispersion of bifenthrin and furantenozide, phenylethylphenol polyoxyethylene ether, alkylphenol polyoxyethylene ether, and part of water according to the stated ratio for 30min, after Grind the mixed materials with a sand mill to a particle size below 5um, then add ethylene glycol, citric acid, xanthan gum, etc. to the post-mixing kettle and stir evenly to obtain the finished product.

experiment example 1

[0028] Bifenthrin and furafenozide were weighed and prepared in different proportions according to the process of Example 1 to prepare a bifenthrin·furafenozide suspension concentrate with a total active ingredient weight percentage of 30%. See the table below for specific ratios.

[0029] The indoor synergistic bioassay was carried out by the leaf dipping method, and the resistant Plutella xylostella was selected as the target pest. Each treatment was repeated 3 times, and 60 heads were treated at each concentration. Medium concentration, use the LC50 value to calculate the co-toxicity coefficient according to Sun Yunpei's method to evaluate the mixed effect, usually showing three types of effects, namely synergistic, additive and antagonistic, when the co-toxicity coefficient (CTC) is greater than 120, it has a synergistic effect .

[0030] Actual toxicity index ATI(AB)=EC50 of A / EC50 of AB*100

[0031] Theoretical toxicity index TTI(AB)=TI(A)*A percentage in the mixture +...

Embodiment 2

[0037] 36% Bifenthrin · Fufenozide Suspension Concentrate is prepared, and the distribution ratio of each component is by weight:

[0038]

[0039] Preparation method with reference to embodiment 1

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Abstract

The invention discloses a pesticide composition containing bifenthrin and application of the composition. The composition comprises bifenthrin and furan tebufenozide, wherein the weight ratio of bifenthrin to furan tebufenozide is (1-50) to (50-1). The composition is prepared into various pesticide formulations by adding components such as an emulsifier, a cosolvent, an antifreezer, a defoamer, a thickener, a stabilizer and a pH regulator, but preferably the composition is prepared into an environment-friendly water-based suspending agent preparation; the composition has a synergistic pesticide effect and can delay pesticide resistance of pests and prevent and control various pests such as delphacidae, aleyrodidae, aphides, thrips, diamondback moths, beet armyworms and mites on crops.

Description

technical field [0001] The invention relates to the technical field of pesticide preparations, in particular to an insecticidal composition containing bifenthrin and its application. Background technique [0002] Bifenthrin: molecular formula: C46H44Cl2F6O4, molecular weight: 845.7356, melting point: 68~70.6℃ / pure product; 57~64℃ / original drug, solubility: water 0.1mg / L, acetone 1.25kg / L, and soluble in chloroform , dichloromethane, ether, toluene, etc., relative density (d25) 1.210, stable to light, stable in acidic medium, stable for one year at room temperature, but will decompose in alkaline medium. [0003] The pure product is white solid, the solubility in water is 0.1mg / l, soluble in acetone, chloroform, dichloromethane, ether, toluene, heptane. Slightly soluble in pentane and methanol, the original drug is stable for more than 1 year at 25 °C, and stored at room temperature, the stability is more than 1 year. Stable for 21 days at PH5-9 (21°C), DT50-65-125 days in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N53/06A01P7/02A01P7/04A01N43/12
Inventor 孙素一
Owner 孙素一
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