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Silktree-albizia-extract-based preparation for controlling tetranychus cinnabarinus, and preparation and application thereof

A technology of Tetranychus cinnabarinus and an extract, which is applied to a preparation for controlling Tetranychus cinnabarinus based on Albizia Julibrissin extract and the fields of preparation and application thereof, can solve the problem of not finding the Albizia Julibrissin extract and the like, achieves enhanced acaricidal effect, easy availability of raw materials, Effects with low equipment requirements

Inactive Publication Date: 2011-10-05
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] After searching the prior art documents, it was found that Yang Xiujuan et al. reported the extract of Albizia juliensis in the article entitled "Inhibition and Killing Effect of Plant Extract on Meloidogyne incognita" in "Journal of Fujian Agricultural Sciences" (volume 19, No. 2). Meloidogyne incognita has certain inhibitory and killing effect, and this extract is to be raw material with the leaf of Albizia Julibrissin, after being pulverized through 20 mesh sieves, take quantitative Albizia Julibrissin powder and dissolve in quantitative sterile water (plant powder and water weight ratio 1:20), shaking and soaking to extract the extract obtained for 24 hours; in further searches, there was no research report on the use of Albizia Julibrissin extract for the prevention and treatment of Tetranychus cinnabarinus

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Controlling Tetranychus cinnabarinus water agent weight percent: Albizia Julibrissin plant extract 1%, distilled water 99%.

[0022] The bark, stem, leaf and flower of Albizia Julibrissin were dried at 10°C and ground into 20-mesh powder. Then weigh 20g each of Albizia Julibrissin bark, stem, leaf and flower powder, impregnate 1-3 days at room temperature with 800ml of 70% ethanol solution, filter, take the filtrate respectively to concentrate under reduced pressure and recover the solvent to obtain the extraction extract, add a certain amount of distilled water, placed in an ultrasonic generator for 10-15 minutes to suspend the dry matter, and prepared into an aqueous solution with a concentration of 1%.

[0023] experiment method:

[0024] The determination of the activity of the Albizia Julibrissin acaricide against Tetranychus cinnabarinus was carried out according to the method of soaking the stems of spider mites in the Bioassay SOP of the National Southern Pesti...

Embodiment 2

[0027] The weight percent of the water agent for controlling the spider mite is: 3% of the Albizia Julibrissin plant extract, and 97% of distilled water.

[0028] The bark, stem, leaf and flower of Albizia Julibrissin were dried at 20°C and ground into 10-mesh powder. Then weigh 50g each of Albizia Julibrissin skin, stem, leaf, and flower powder, impregnate 1-3 days at room temperature with 70% ethanol solution 2000ml, filter, take the filtrate and concentrate under reduced pressure to recover the solvent to obtain the extract extract, add a certain amount of distilled water, placed in an ultrasonic generator for 15 minutes to suspend the dry matter, and prepared into an aqueous solution with a concentration of 3%. For Tetranychus cinnabarinus, the method of dipping the stems and leaves of Tetranychus cinnabarinus was used for bioassay, and the mortality rate was counted after 24 hours, and the control effect was 98.54%.

Embodiment 3

[0030] Controlling Tetranychus cinnabarinus water agent weight percent: Albizia Julibrissin plant extract 2%, distilled water 98%.

[0031] The bark, stem, leaf and flower of Albizia Julibrissin were dried at 30°C and ground into 30-mesh powder. Then weigh 50g each of Albizia Julibrissin skin, stem, leaf, and flower powder, impregnate 1-3 days at room temperature with 70% ethanol solution 2000ml, filter, take the filtrate and concentrate under reduced pressure to recover the solvent to obtain the extract extract, add a certain amount of distilled water, placed in an ultrasonic generator for 15 minutes to suspend the dry matter, and prepared into an aqueous solution with a concentration of 2%. Respectively extract five times with equal volumes of sherwood oil, ethyl acetate, n-butanol successively; Wherein sherwood oil, ethyl acetate, n-butanol extract and the water suspension after extraction are concentrated to dryness under reduced pressure respectively, The obtained Albizi...

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Abstract

The invention discloses a silktree-albizzia-extract-based preparation for controlling tetranychus cinnabarinus, and preparation and application thereof, belonging to the technical field of pesticide. The preparation comprises the following compositions in percentage by weight: 10-40 percent of silktree albizia bark extract, 10-40 percent of silktree albizia stem extract, 5-35 percent of silktree albizia leaf extract, 5-35 percent of silktree albizia flower extract, and 20-60 percent of distilled water. The silktree-albizzia-extract-based preparation is effective, economical, practical and environmentally-friendly and has the advantages of no residue, wide tetranychus cinnabarinus killing range, low production cost and the like.

Description

technical field [0001] The invention relates to a preparation method in the technical field of pesticides, in particular to a preparation for controlling Tetranychus cinnabarinus based on an extract of Albizia Julibrissin and its preparation and application. Background technique [0002] Tetranychus cinnabarinus is an important herbivorous spider mite. The mite is small, reproduces quickly, has a large population density, and is seriously harmful. It is an important economic pest mite. Its host plants are more than 100 kinds, including cotton, various vegetables, melons, beans, willows, roses, jujubes, etc. A variety of economic crops and ornamental plants and weeds. Tetranychus cinnabarinus mainly harms the back of plant leaves, spinning silk and forming webs. The damaged leaves initially showed small white spots, and the spots gradually increased with the increase of the degree of damage. In the middle and late stages, the plants are severely damaged, resulting in short...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/20A01P7/02A01G13/00
Inventor 代光辉贾福丽陈义娟陈佳王丹丹
Owner SHANGHAI JIAO TONG UNIV
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