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A kind of pampyramide b as the application of preparing pesticide

A technology of biscaramides and pesticides, applied in the fields of application, separation/purification of carboxylic acid amides, chemicals for biological control, etc., can solve problems that have not been reported, and achieve large separation, outstanding insecticidal activity, and separation high efficiency effect

Active Publication Date: 2016-11-30
中国中化股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has been reported in the literature that the extract of the pumice fruit core has growth inhibitory activity on barnyard grass, and two compounds have been isolated and tested for activity, but neither of these two compounds is pampamide B; B has a certain activity against pine xylophilus, but the application of psanthamide B in the field of pesticides has not been reported so far

Method used

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  • A kind of pampyramide b as the application of preparing pesticide
  • A kind of pampyramide b as the application of preparing pesticide
  • A kind of pampyramide b as the application of preparing pesticide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1 Isolation of pangperamide B from the fruit stone of Rutaceae Panthophyte

[0028] 1. Soxhlet extraction

[0029] Firstly, use a miniature plant sample grinder to crush the wampeskin fruit stone (commercially available, self-purchased) to 40-80 meshes, according to the weight of the wampeskin fruit stone powder (Kg) and the solvent volume (L) 1: 4 to 1:6 ratio, after mixing, use a Soxhlet extractor to extract with petroleum ether, ethyl acetate and ethanol respectively (extract with petroleum ether at a reflux temperature of 70°C; use ethyl acetate in Extract at a reflux temperature of 77°C; extract with ethanol at a reflux temperature of 78.5°C.) Until the solvent under reflux from the extraction tube of the Soxhlet extractor loses color, the extraction time is about 4 to 6 hours. Concentrating the above-mentioned extracts respectively to obtain the petroleum ether extract, ethyl acetate extract and ethanol extract of the wampeskin fruit stone in sequence. T...

Embodiment 2

[0044] Insecticidal and acaricidal activity test of embodiment 2 pantamide B

[0045] The insecticidal activity test was carried out on Plutella xylostella xylostella and armyworm by artificial feed coating method. The basic operation is as follows: Prepare a sufficient amount of 24-well culture plate with 1ml of artificial feed per well, add liquid medicine on the surface of artificial feed to form a drug film, add 0.05ml of liquid medicine to each well, and inoculate worms after the liquid is dry, one head per well Test worms, each concentration is a treatment, a total of 24 test worms on a culture plate for each treatment. After the treatment, put them into the observation room, and observe the death of the test insects regularly. After 7 days, check and record the number of dead heads of the test insects, and calculate the mortality rate.

[0046] For peach aphid and Tetranychus cinnabarinus, the plant living spray method is used. After the preparation of the liquid med...

Embodiment 3

[0051] The bactericidal activity test of embodiment 3 pantamide B

[0052] Cucumber downy mildew, wheat powdery mildew and corn rust were tested by pot seedling method, and rice blast and cucumber gray mold were tested by in vitro inhibition of spore germination. After dissolving the test product xanthamide B with a small amount of acetone, it was diluted with tap water containing 0.1% Tween80. The test concentration of the potted seedling test is 400mg / L, using a rotary table crop sprayer, and the spray pressure is 1.5kg / cm 2 , the spray volume is about 1000L / hm 2 (After conversion), the inoculum for cucumber downy mildew and corn rust is spore suspension, and the inoculum for wheat powdery mildew is powdery spore. The disease grading standard of the potted seedling test refers to "A manual of assessment keys for plant diseases" compiled by the American Society of Phytopathology.

[0053] The test concentration of the in vitro inhibition of spore germination test was 25 mg...

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Abstract

The invention belongs to the field of biopesticides, and in particular relates to the application of biologically active parent Lansiumamide B (Lansiumamide B) isolated from the fruit stone of the Rutaceae Rutaceae plant Lansium as the preparation of pesticides. The derivatives modified by the psanthamide B and the psantamide B parent can be used for the preparation of pesticides. As a natural product, the bantamide B used in the present invention has a relatively simple structure and the feasibility of biomimetic synthesis. It is used in agricultural production and has important economic, social and environmental benefits for the development of green agriculture and the promotion of sustainable development of agricultural production. .

Description

technical field [0001] The invention belongs to the field of biopesticides, and in particular relates to the application of biologically active parent Lansiumamide B (Lansiumamide B) isolated from the fruit stone of the Rutaceae Rutaceae plant Lansium as the preparation of pesticides. Background technique [0002] With the increasing awareness of environmental protection, pesticide residues and pollution have become the bottleneck of new drug creation to some extent, and people began to explore other ways to develop new pesticides. The active ingredients contained in botanical pesticides are natural substances, which have a smooth degradation path after application in the environment, have no or little pollution to the environment, have low toxicity to humans, animals and natural enemies, and are not easy to cause drug resistance, etc. The development direction of pesticides. It is an effective way to create new pesticides by searching for and discovering pesticide lead com...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N37/18A01P7/04A01P7/02A01P3/00A01P13/00C07C233/11C07C231/24
Inventor 胥维昌龚党生闫海生王远宋玉泉孙慧沈丽红王大志
Owner 中国中化股份有限公司
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