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Method for preparing Bradysia odoriphaga control pesticide

A technology of tardy-eyed fungus and medicine, which is applied in the field of compositions and preparations for preventing and treating tardy-eyed fungus larvae, which can solve the problems of not being easy to clean, hard to kill, and inseparable from serious poisons, so as to reduce the ability to secrete silk threads , short safety interval and high safety effect

Inactive Publication Date: 2015-04-08
王春爱
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the methods for controlling the larvae of T. chives are mainly chemical pesticides such as abamectin and organophosphorus, but there are the following defects: ①The larvae of T. larvae live in the underground soil, and it is difficult to kill them with general pesticides; ② Use methamidophos, monocrotophos and other high-residue and highly toxic organophosphorus pesticides mixed with water to kill leek maggots, because a large amount of organophosphorus pesticides will be absorbed by the roots of leeks and remain in the leeks, so it is not easy to be easily washed off. poisoning after ingestion
[0004] There are also some botanical pesticides on the market. The main mechanism of action is mostly the use of some toxic traditional Chinese medicines for deployment. Although they are plant sources, they are still inseparable from serious poisons. There are hidden dangers in production and sales, and they also affect the natural growth of leeks. , resulting in a decline in the nutritional value and taste of leeks

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046]In embodiment 1, raw material medicine and weight ratio are: 10 parts of Longan longan, 15 parts of Kuhulu, 40 parts of Herba Sinensis, 30 parts of cloves, 20 parts of Asarum, 20 parts of rattan, 3 parts of dizzy chicken head, Guiding 40 parts, Chishizhi 5 parts, Ulva 2 parts, Dogbone 1 part, Eupatorium 10 parts, Centella asiatica 2 parts, Redback Niang 10 parts, Crab seven 3 parts, Lycopodium nuts 8 parts, Jiuxiancao 8 parts, 15 parts of barnyard grass, 25 parts of Qingxianggui.

[0047] The preparation method of embodiment 1 is:

[0048] (1) Extract volatile oil from Piper longum, Crab seven, Hunjitou, Kuhulu, Clove, Asarum, Guiding, and Qingxianggui coarse powder respectively, and collect them and mix them for later use, and the dregs for later use;

[0049] (2) Mix Shenjincao, vine hemp, dog bone wood, eupatorium, centella asiatica, red back mother, wine fairy grass, red stone resin, lycopodium, ulva, mountain barnyardgrass and the medicine residue in step 1 3 time...

Embodiment 2

[0055] In embodiment 2, raw material drug and weight ratio are: 35 parts of longan longan, 65 parts of Kuhulu, 10 parts of Herba Sinensis, 80 parts of cloves, 75 parts of Asarum, 90 parts of rattan, 30 parts of dizzy chicken head, Guiding 2 parts, red stone fat 40 parts, Ulva 25 parts, Dogbone 20 parts, Eupatorium 60 parts, Centella asiatica 8 parts, Hongbei Niang 40 parts, crab seven 20 parts, Lycomus pine nuts 20 parts, Jiuxiancao 60 parts, 5 parts of barnyard grass, 6 parts of Qingxianggui.

[0056] The preparation method of embodiment 2 is:

[0057] (1) Put the above raw materials into a percolation kettle after crushing, add 3 times the amount of ethanol with a volume concentration of 99%, heat to 50°C, and heat for 6 hours to obtain leachate and filter residue;

[0058] (2) inject the leachate obtained in step 1 into a distillation still, and distill to obtain a distillate;

[0059] (3) After dealcoholizing the filter residue obtained in step 1, add 3 times the amount ...

Embodiment 3

[0062] In embodiment 3, raw material drug and weight ratio are: 22 parts of longan longan, 45 parts of Kuhulu, 20 parts of Herba Sinensis, 55 parts of cloves, 40 parts of Herba Asarum, 55 parts of rattan and hemp, 16 parts of dizzy chicken head, 21 parts of Gui Ding, 22 parts of Chishizhi, 13 parts of Ulva, 10 parts of Dogbone, 35 parts of Eupatorium, 5 parts of Centella Asiatica, 25 parts of Red Back Niang, 11 parts of Crab Seven, 14 parts of Lycopodium, Jiuxiancao 34 parts, 10 parts of barnyard grass, 15 parts of Qingxianggui.

[0063] The preparation method of embodiment 3:

[0064] (1) Extract mixed essential oils from Piper longum, Crab seven, Sunjitou, Kuhulu, Clove, Asarum, Guiding, Qingxianggui coarse powder through supercritical fluid CO2 extraction, and the dregs for later use;

[0065] (2) Mix Shenjincao, vine hemp, dog bone wood, eupatorium, centella asiatica, red back mother, wine fairy grass, red stone resin, lycopodium, ulva, mountain barnyardgrass and the medi...

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Abstract

The invention discloses a method for preparing Bradysia odoriphaga control pesticide, and relates to the field of biological pest killing. The method for preparing the Bradysia odoriphaga control pesticide is characterized in that the raw materials are multiple types of traditional Chinese medicine. Compared with the prior art, the composition for controlling the larvae of chinese chive Bradysia odoriphaga is safe and efficient, the high yield of agricultural products is promoted, and it is achieved that agriculture products are safe and non-toxic.

Description

technical field [0001] The invention relates to the field of biological insecticide, in particular to a composition for preventing and treating tardigrade larvae and a preparation method thereof. Background technique [0002] Chives belong to the perennial herb of Liliaceae, and are very popular vegetables for the general public and ordinary people. Bradysia odoriphaga Yang et Zhang mainly harms leeks, scallions, onions, shallots, garlic and other lily vegetables, and occasionally lettuce, green vegetables, celery, etc. It is one of the main pests of onion and garlic vegetables. The form of its larval damage: In spring and autumn, it mainly causes the young stems of leeks to rot, causing the leaves of leeks to turn yellow and die. In summer, the larvae move downward and bore into the bulbs. In severe cases, the bulbs rot and the whole pile of leeks dies. [0003] At present, the methods for controlling the larvae of the larvae are mainly chemical pesticides such as abamect...

Claims

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Application Information

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IPC IPC(8): A01N65/42A01P7/04
CPCY02A50/30
Inventor 王春爱
Owner 王春爱
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