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Pesticide for killing aphides and preparation method thereof

A technology for pesticides and aphids, applied in the field of natural plant application, can solve problems such as hindering human production activities and easily causing damage to human skin, and achieve the effects of good pest control effect, low cost and simple process operation.

Active Publication Date: 2015-03-11
江苏稼穑化学有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, because of its barbs, it is easy to cause damage to human skin, and it will also hinder human production activities.
[0008] Sedge, star grass, mugwort, and humulus are widely used at present, and the combination of the four to prepare pesticides for killing aphids has not been reported yet.

Method used

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  • Pesticide for killing aphides and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A pesticide for killing aphids, the pesticide is made of the following raw materials: Cyperus sedge 10kg, Puccinellia tenuiflora 10kg, Mugwort leaf 10kg, Humulus humulus 10kg.

[0033] (1) Crush the Cyperus sedge, Puccinellia tenuiflora and Mugwort leaves into 20 meshes, put them in the extraction tank, add water to them at the ratio of 1 liter of water per 120g of raw material medicine, heat and reflux for 1.5 hours, filter, and obtain medicine residue A and Reflux extract A';

[0034] (2) Put the medicine residue A and the Humulus humulus pulverized into 20 meshes, put them into the extraction tank, add water to it at the ratio of 1 liter of water per 200g of the raw material medicine, heat and extract for 1.5 hours, filter, and concentrate the filtrate to the total Add ethanol to 50% of the drug solution to a concentration of 75%, precipitate for 10 hours, filter, and use the filtrate as a drug extract for use;

[0035] (3) Mix the reflux extract A′ obtained in step (1) wi...

Embodiment 2

[0037] A pesticide for killing aphids, the pesticide is made of the following raw materials: Cyperus sylvestris 9kg, Puccinellia tenuiflora 11kg, Mugwort leaves 9kg, Humulus humulus 11kg.

[0038] (1) Crush sedge, Puccinellia tenuiflora and Mugwort leaves into 10 meshes, put them in an extraction tank, add water to them at the ratio of 1 liter of water per 120g of raw material medicine, heat and reflux for 1 hour, filter, and obtain medicine residue A and Reflux extract A';

[0039] (2) Put the medicine residue A and the Humulus humulus pulverized into 10 meshes, put them into the extraction tank, add water to it at the ratio of 1 liter of water per 200g of the raw material medicine, heat and extract for 2 hours, filter, and concentrate the filtrate to the total Add ethanol to 50% of the drug solution to a concentration of 72%, precipitate for 8 hours, filter, and use the filtrate as a drug extract for use;

[0040] (3) Mix the reflux extract A′ obtained in step (1) with the drug ex...

Embodiment 3

[0042] A pesticide for killing aphids, the pesticide is made of the following raw materials: sedge 11kg, puccinellia 9kg, wormwood 11kg, and humulus 9kg.

[0043] (1) Crush sedge, Puccinellia tenuiflora and Mugwort leaves into 20 meshes, put them in an extraction tank, add water to them at the ratio of 1 liter of water per 120g of raw material medicine, heat and reflux for 2 hours, filter, and obtain medicine residue A and Reflux extract A';

[0044] (2) Put the medicine residue A and the Humulus japonicus pulverized into 20 meshes, put them in the extraction tank, add water to it at the ratio of 1 liter of water per 200 g of the raw material medicine, heat and extract for 1 hour, filter, and concentrate the filtrate to the total Add ethanol to 50% of the drug solution to a concentration of 78%, precipitate for 12 hours, filter, and use the filtrate as a drug extract for use;

[0045] (3) Mix the reflux extract A′ obtained in step (1) with the drug extract obtained in step (2) in a ...

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Abstract

The invention belongs to the technical field of natural plant application, and in particular relates to a pesticide for killing aphides and a preparation method thereof. The pesticide is prepared from pure natural plants. The pesticide is prepared from the following raw material herbs in part by weight: 8-12 parts of nutgrass flatsedge, 8-12 parts of puccinellia tenuiflora, 8-12 parts of folium artemisiae argyi and 8-12 parts of scandent hop. The preparation method of the pesticide for killing aphides comprises the following steps: extracting, separating and concentrating nutgrass flatsedge, puccinellia tenuiflora, folium artemisiae argyi and scandent hop and compatibly applying to obtain the environment-friendly natural green pesticide which has low aphis drug resistance, good effect of preventing and controlling pest, no environmental pollution and no residue.

Description

Technical field [0001] The invention belongs to the technical field of natural plant application, and specifically relates to a pesticide for killing aphids prepared from pure natural plants and a preparation method thereof. Background technique [0002] Aphids [Myzus persicae (Sulzer), Aphis gossypii Glover, Brevicorynebrassicae (L.), Lipaphis erysimi (Kaltenbach), etc.], red spiders [Tetranychuscinnabarinus (BoiduTval), Tetranychuscinnabarinus (BoiduTval), etc.] . truncates Ehara and T. urticae urticae Koch, etc.] are the main pests that harm melon and vegetable crops. With global warming and the continuous expansion of protected areas, the damage caused by them is serious year by year. First of all, high temperature can increase the base of occurrence and increase the occurrence of generations. In winter, the protected area becomes a place for a large number of pests to overwinter and multiply. Secondly, in the cultivation of protected areas, the natural enemies of pests ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N65/44A01P7/04
Inventor 孙红梅宋科徐慧岩蔡元春
Owner 江苏稼穑化学有限公司
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