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Aphid repellent based on multi-component linear chain unsaturated aldehydes

A repellent and unsaturated technology, applied in animal repellents, insecticides, pest repellents, etc., can solve problems such as adverse environmental impacts and harm to human health, and achieve low environmental hazards and increased compatibility Effect

Inactive Publication Date: 2019-06-18
SOUTHWEST FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, spraying pesticides in densely populated public green spaces or gardens will have adverse effects on the environment and will also endanger people's health

Method used

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  • Aphid repellent based on multi-component linear chain unsaturated aldehydes
  • Aphid repellent based on multi-component linear chain unsaturated aldehydes
  • Aphid repellent based on multi-component linear chain unsaturated aldehydes

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] see figure 1 , the present invention provides a technical solution: a kind of aphid repellent based on multi-component linear unsaturated aldehydes, taking the preparation of 1L repellent as an example, comprising the following steps:

[0021] S1. Weigh 1 g of the purified Plum Gum, add it to 1L of deionized water, and let it soak for 12 hours. The Gum Prunus is completely dissolved in water to form a uniform solution, forming an aqueous solution of Gum Prunus;

[0022] S2. Add 5g of 4-oxo-2-hexenal, 1g of trans-2-hexenal and 1g of trans-2-octenal into the above 1L aqueous solution of Prunus chinensis gum, and mechanically stir for 15 minutes. get a mixed solution;

[0023] S3. Add 1 mL of non-ionic surfactant polyethylene glycol 400 to the mixed solution, and continue mechanical stirring at room temperature for 30 minutes to obtain a repellent;

[0024] S4. Spray the repellent every day from 11:00 to 15:00, and spray twice.

[0025] Specifically, in the S1, the purp...

Embodiment 2

[0032] The invention provides a repelling effect experiment: the experiment is carried out in a flower nursery, and the Chinese rose aphid is used as the repelling object. Select 30 potted roses (1 plant per pot, about 0.5 meters in height), 15 plants in the experimental group and 15 plants in the control group, and the distance between the two groups is 10 meters. Before the experiment, put 20 healthy aphids on each rose plant with a brush . After 3 hours, the 15 roses in the experimental group were sprayed with repellent, and the 15 roses in the control group were sprayed with clear water, and the number of aphids on the roses of the two groups were counted the next day.

[0033]

[0034]

[0035] The repellency rate of the Chinese rose aphid:

[0036] Repellent rate (%) = (number of insects in the control group - number of insects in the experimental group) / number of insects in the control group × 100%

[0037] Calculated by the above formula, the repellent rate o...

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Abstract

The invention discloses the technical field of agricultural chemical engineering, and particular to an aphid repellent based on multi-component linear chain unsaturated aldehydes. A preparation methodof 1L of repellent includes the steps: S1 weighing 1g of purified purple-leaf plum, adding the purple-leaf plum into 1L of deionized water, standing and soaking mixture for 12hours, and completely dissolving the purple-leaf plum in water to form homogeneous solution to obtain purple-leaf plum water solution; S2 adding 5g of 4-oxo-2-hexenoic aldehyde, 1g of trans-2-hexenoic aldehyde and 1g of trans-2-octenal into 1L of purple-leaf plum water solution, and mechanically stirring mixture for 15 minutes to obtain mixed solution; S3 adding 1mL of nonionic surface active agent polyethylene glycol 400 into the mixed solution, and continuing to mechanically stir mixture for 30 at the indoor temperature to obtain the repellent. The prepared aphid repellent cannot kill aphids and effectively repelsthe aphids. Compared with a pesticide for killing the aphids, the prepared aphid repellent is free from toxicity and harm, less in environmental harm and more suitable for outdoor viewing and gardening flowers.

Description

technical field [0001] The invention belongs to the technical field of agricultural chemicals, and in particular relates to an aphid repellent based on multi-component linear unsaturated aldehydes. Background technique [0002] Aphids, commonly known as honey bugs, are one of the most destructive agricultural pests due to their high reproductive capacity. About 250 species of aphids are serious pests in agriculture, forestry and horticulture. Aphids have to repeatedly transfer and try food when they migrate to find host plants, so they can spread many kinds of plant virus diseases and cause greater damage. At present, aphids are mainly eliminated by spraying pesticides. Commonly used pesticides for aphid control include marathon emulsion, fenitrothion emulsion, pirimicarb wettable powder, deltamethrin emulsion, and imidacloprid water solvent. However, spraying pesticides in densely populated public green spaces or gardens will have adverse effects on the environment and wi...

Claims

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Application Information

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IPC IPC(8): A01N35/02A01N25/10A01P7/04A01P17/00
Inventor 王大伟杨斌赵宁冯小飞李宗波朱家颖
Owner SOUTHWEST FORESTRY UNIVERSITY
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