Compound insecticide from plant source and its preparing method

A botanical insecticide and insecticide technology, applied in botanical equipment and methods, plant growth regulators, biocides, etc., can solve the problems of complex material preparation and processing technology, and achieve excellent insecticidal activity and action speed Fast, enhanced insecticidal effect

Inactive Publication Date: 2003-07-23
江苏省农业科学院植物保护研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Looking at the above-mentioned patent applications, most of them use a variety of plants in...

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0020] Weigh 100 kg each of crushed Ailanthus japonica leaves, Ailanthus ailanthii leaves, and Brucea javanica fruits, and extract them with ethyl acetate respectively at a temperature of 45°C, and concentrate the extracts to 30 kg respectively to obtain 100 kg of Ailanthus japonica, Ailanthus ailanthii and Brucea javanica respectively Extract: Weigh 100 kg of pulverized roots of Pulsatillae Radix, extract with alcohol at a temperature of 45° C., and concentrate the extract to 30 kg to obtain a crude extract of Pulsatillae Radix.

Embodiment 2

[0022] The crude extracts of each plant were obtained with reference to Example 1. 3 kilograms of the crude extracts of Brucea javanica fruit, 3 kilograms of crude extracts of Ailanthus leaves, 15 kilograms of crude extracts of Junzi and 4 kilograms of surfactants (such as polybehenyl-80) are placed in a homogenizer, heated to After fully mixing at 46°C, slowly add 15 kg of Pulsatilla pulsatillae crude extract and 10 kg of water, stir for 30 minutes, cool to room temperature, and form a water emulsion to obtain a compound botanical insecticide.

[0023] Indoor toxicity test of the compound botanical insecticide prepared by embodiment 2:

[0024] Indoor test pests include cabbage caterpillar (Pieris rapae L.) 3-4 instar larvae, armyworm (Mythimna separata Walker) 3rd instar larvae, litura litura F. 3rd instar larvae, silver print (Plusia agnata Sttaudinge) 3rd instar larvae, cabbage aphid (Brevicorune brassicae L.), green peach aphid (myzus persica Sulzer), cotton aphid (Aphis...

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Abstract

A composite vegetative insecticide is prepared from the root of heaven tree, the root of leaf of pulsatilla, fruit or leaf of quisqualis and brucea fruit through proportioning and extracting. Its advantages are broad spectrum, high effect, quickly taking its effect and no environmental pollution.

Description

[0001] Field [0002] The invention relates to a botanical insecticide and a preparation method thereof. Background of the invention [0003] Pesticides play an important role in human resistance to pests and diseases, and in protecting crops with high yield and high-quality production. Since the advent of organic synthetic pesticides in the middle of the 20th century, they once played a huge role in promoting agricultural production due to their high efficiency, quick effect, and broad spectrum. However, due to the large-scale use of highly toxic and high-residue organic synthetic pesticides, in just a few decades, the negative impacts have been far beyond people's expectations, such as pest resistance, environmental pollution, and mass killing of beneficial organisms. and many more. Biorational pesticides that are highly effective against pests and safe for the environment and non-target organisms have become the mainstream of modern pesticide creation and development. Bo...

Claims

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Application Information

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IPC IPC(8): A01N65/32A01N65/08A01P7/00
CPCY02A50/30
Inventor 余向阳刘贤进高蓉
Owner 江苏省农业科学院植物保护研究所
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