Preparation method for botanical pesticide for specially killing cabbage caterpillars during organic vegetable planting

A technology of plant pesticides and organic vegetables, which is applied in the direction of botany equipment and methods, pesticides, plant growth regulators, etc., can solve the problems of poor insecticidal effect, achieve long duration of drug effect, no resistance Medicinal properties, good absorption effect

Active Publication Date: 2015-03-11
ZHEJIANG HENGZE ECOLOGICAL AGRI SCI & TECH LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The current existing plant insecticides against cabbag...

Method used

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  • Preparation method for botanical pesticide for specially killing cabbage caterpillars during organic vegetable planting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1, a kind of plant insecticide specially killing cabbage caterpillar, its preparation method is to carry out following steps successively:

[0025] 1) Preparation of raw materials:

[0026] 13 parts of Sophora flavescens, 10 parts of Toosendan, 19 parts of Toosendan bark, 15 parts of Tripterygium wilfordii, 24 parts of Aconitum aconiti, 6 parts of chamaejamas, 8 parts of tangerine peel, and 13 parts of tobacco;

[0027] 2), adding 3 times the weight of water to the raw material, decocting at a temperature of 100°C for 120 minutes; the obtained filtrate is concentrated to 1 / 3 of the original water consumption; after cooling to room temperature, a plant insecticide specially used to kill cabbage caterpillar is obtained agent.

Embodiment 2

[0028] Embodiment 2, a kind of plant insecticide specially killing cabbage caterpillar, its preparation method is to carry out following steps successively:

[0029] 1) Preparation of raw materials:

[0030] 15 parts of Sophora flavescens, 8 parts of Toosendan, 15 parts of Toosendan bark (Azalea bark), 13 parts of Tripterygium wilfordii, 20 parts of Aconitum aconiti, 5 parts of chamaemachama, 7 parts of tangerine peel, and 13 parts of tobacco.

[0031] Step 2) is the same as in Example 1.

Embodiment 3

[0032] Embodiment 3, a kind of plant insecticide specially killing cabbage caterpillar, its preparation method is to carry out following steps successively:

[0033] 1) Preparation of raw materials:

[0034] 10 parts of Sophora flavescens, 7 parts of Toosendan, 12 parts of Toosendan bark (Azalea bark), 10 parts of Tripterygium wilfordii, 18 parts of Aconitum aconiti, 4 parts of chamaejamas, 6 parts of tangerine peel, and 13 parts of tobacco.

[0035] Step 2) is the same as in Example 1.

[0036] Experiment 1. Carry out the following toxicity test against cabbage caterpillar respectively to the botanical insecticides obtained in above-mentioned embodiment 1~embodiment 3:

[0037] Dilute the plant insecticide to 3 times, 5 times (weight times), adopt a petri dish with a diameter of 9cm, put filter paper in each petri dish, and place the kale leaves ( Remarks: replace the kale leaves once a day, each time the kale leaves are basically covered with the petri dish), and then put ...

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Abstract

The invention discloses a preparation method for a botanical pesticide for specially killing cabbage caterpillars during organic vegetable planting. The preparation method comprises the following steps: 1), preparing raw materials, wherein the raw materials comprise the following components in parts by weight: 10-15 parts of radix sophorae flavescentis, 7-10 parts of melia toosendan, 12-19 parts of melia toosendan bark, 10-15 parts of tripterygium glycosides, 18-24 parts of raw kusnezoff monkshood roots, 4-6 parts of radix euphorbiae lantu, 6-8 parts of pericarpium citri reticulatae and 13 parts of tobacco; 2), adding 3 to 4 times of water by weight in the raw materials, decocting in a sealing manner at the temperature of 90-100 DEG C for 100 to 120 minutes, filtering, and concentrating the filtrate to be 1/3-1/4 of the original used water amount to obtain the botanical pesticide for specially killing pierisrapae linne. The botanical pesticide can targetedly and specially kill cabbage caterpillars by scientific compatibility of the traditional Chinese medicine components, and is high in permeability, conducive to plant uptake, low in cost, free of three-evil, residue, pollution and drug resistance, high in drug adsorption, and long in drug effect duration.

Description

technical field [0001] The invention relates to an agricultural planting pest control technology, in particular to a method and equipment for preparing plant insecticides for killing cabbage worms in the process of planting organic vegetables in small and medium-sized (family) farms. Background technique [0002] The abuse of chemical pesticides in green leafy vegetables in my country is quite serious. Farmers are still using chemical pesticides banned by the state, so poisoning incidents frequently occur due to excessive residues of highly toxic pesticides in agricultural products. According to statistics, there are 3 million pesticide poisoners in the world every year, and tens of thousands to 100,000 pesticide poisoners in China every year. Food poisoning incidents caused by excessive chemical pesticide residues may occur at any time. At the same time, long-term chemical pesticide residues accumulate in the human body, resulting in imperceptible chronic poisoning and "t...

Claims

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Application Information

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IPC IPC(8): A01N65/38A01P7/04
CPCY02A50/30
Inventor 张高立
Owner ZHEJIANG HENGZE ECOLOGICAL AGRI SCI & TECH LIMITED
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