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Compound insecticide from plant source and its preparing method

A botanical insecticide and insecticide technology, which can be applied in the fields of botanical equipment and methods, plant growth regulators, biocides, etc. get, fast effect

Inactive Publication Date: 2004-12-22
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 combination. Relatively speaking, the preparation and processing techniques are more complicated.

Method used

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  • Compound insecticide from plant source and its preparing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Weigh 100 kg each of crushed Ailanthus japonica leaves, Ailanthus ailanthii, and Brucea javanica fruit, and extract them with ethyl acetate at a temperature of 45°C, and concentrate the extracts to 30 kg, respectively, to obtain S. 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] With reference to Example 1, various plant crude extracts were obtained. Place 3 kilograms of Brucea javanica fruit crude extract, 3 kilograms of Ailanthus root crude extract, 15 kilograms of Junzi crude extract and 4 kilograms of surfactants (such as polysorbate-80) in the homogenizer, heated to 46 ℃, after fully mixing, slowly add 15 kg of Pulsatilla vulgaris crude extract, 10 kg of water, stir for 30 minutes, cool to normal temperature, form a water emulsion, and 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 gossypiiGlover), bean aphid (Ap...

Embodiment 3

[0032]Each plant extract was obtained with reference to Example 1. Put 10 kilograms of Brucea javanica crude extract, 10 kilograms of Ailanthus crude extract, 10 kilograms of Junzi crude extract and 4 kilograms of surfactant (polyoxyethylene nonionic surfactant: OP-10) into homogenizer , heated to 46°C, mixed thoroughly, then slowly added 10 kg of Pulsatilla pulsatillae crude extract, 6 kg of water, stirred for 30 minutes, cooled to room temperature, formed a water emulsion, and obtained a compound botanical insecticide.

[0033] Table 2 shows the results of the indoor toxicity test of the compound botanical insecticide prepared in Example 3 (the pests tested and the test method are the same as the previous example). As can be seen from the results in the table, the compound botanical insecticide produced by this technology has a very high toxicity to the tested pests. Especially for cabbage caterpillar, armyworm and various aphids, the 48-hour corrected death rate of the tes...

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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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Patent Type & Authority Patents(China)
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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