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A kind of attractant of aphid predatory natural enemy insect

A technology of natural enemy insects and attractants, which is applied in the direction of attracting pests, biocides, animal repellants, etc., can solve the problems of decreased control effect of aphids, aggravated environmental pollution, increased control costs, etc., and achieves agricultural product safety and control. Low-cost, high-efficiency lure effect

Active Publication Date: 2018-11-30
INST OF PLANT PROTECTION FAAS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the control of aphids relies too much on chemical pesticides, but with the long-term and large-scale use of many insecticides, the control effect on aphids has declined rapidly, resulting in increased use of pesticides, increased control costs, and increasingly serious environmental pollution.

Method used

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  • A kind of attractant of aphid predatory natural enemy insect
  • A kind of attractant of aphid predatory natural enemy insect
  • A kind of attractant of aphid predatory natural enemy insect

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Example 1 Preparation method of attractant for adult predatory natural enemy of aphids

[0012] Extract the essential oil from the flowers of Sophora japonica and Matricaria chrysanthemum, weigh 150 grams of flowers, put them in a round bottom flask, add 300ml of distilled water, and heat in an oil bath at 120°C. Measure 70ml of diethyl ether, put it in a round bottom flask, add zeolite, keep it in a constant temperature water bath at 45°C, and distill and extract for 5 hours at the same time. Add anhydrous sodium sulfate to the ether extract, dry it, seal it overnight, filter, and concentrate the filtrate with a rectification column in a water bath at 45°C, then purging it with nitrogen to constant weight, and take the essential oil for later use.

[0013] α-pinene, eugenol, locust tree flower essential oil, and matricaria essential oil are mixed according to weight ratio, and the mixed solution is added to rubber carriers (each rubber carrier contains 10-25 mg of lure...

Embodiment 2

[0017] Attractive effect of different weight ratios of attractants on oleander planting belts in practical application of predatory natural enemy insect adults

[0018] From April 5, 2015 to April 13, 2015, the luring experiment of predatory natural enemy insect adults was carried out in the oleander planting belt of the Third Ring Road, Fuzhou City. The planting belt of oleander with consistent growth was selected as the experimental area. To facilitate detection of the lure effect, the lure core prepared in Example 1 is placed on the barrel trap, the trap is flush with the top of the oleander, and the distance between adjacent traps is 30m. Four replicates were set up for each treatment, arranged randomly, and the rubber carrier without attractant was used as the control. After setting, investigate the number of adult predatory natural enemy insects attracted every two days. The results are shown in Table 2.

[0019] Table 2 Attractive effect of different formulations on ...

Embodiment 3

[0022] Attractive effects of different weight ratios of attractants on adult predatory natural enemy insects in cabbage field

[0023] From May 7, 2015 to May 15, 2015, the luring experiment of predatory natural enemy insect adults was carried out in the cabbage field of Jiantian Village, Xindian Town, Fuzhou City. Choose the same growth day of Chinese cabbage as the experimental area. To facilitate detection of the lure effect, the lure core prepared in Example 1 is placed on the barrel trap, the trap is hung above the Chinese cabbage, and the distance between adjacent traps is 20m. Four replicates were set up for each treatment, arranged randomly, and the rubber carrier without attractant was used as the control. After setting, investigate the number of adult predatory natural enemy insects attracted every two days. The results are shown in Table 3.

[0024] Table 3 Attractive effect of different formulations on predatory natural enemies in the cabbage field

[0025] ...

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Abstract

The invention discloses an attractant for aphid predatory natural enemy insects. The attractant is formed by mixing alpha-pinene, eugenol, locust flower essential oil and matricaria recutita essential oil according to the weight ratio of (1-20):(1-20):(0.1-30):(0.1-30). The attractant has the positive effects that fresh essential oil is used for attracting aphid predatory natural enemy insects and controlling aphids in the initial occurrence stage of the aphids according to an olfactory recognition mechanism of the natural enemy insects to a flower source. The attractant has the advantages that the attraction efficiency is high, the prevention and control cost is low, and the attractant is safe to agricultural products, and environment-friendly.

Description

technical field [0001] The invention belongs to the technical field of biological control of agricultural and garden pests, and in particular relates to an attractant for aphid predatory natural enemy insects. Background technique [0002] Aphids are one of the most destructive pests of agricultural and forestry plants due to their many types and large numbers. The harm is that the piercing-sucking mouthparts suck a large amount of plant juice, causing the deterioration of plant nutrition; the saliva contains amino acids or plant growth hormones, causing abnormal growth of plants; it can spread a variety of plant virus diseases, harming food crops, oil crops, and sugar crops , vegetables, tobacco and fruit trees and other plants, causing huge economic losses. The ability of aphids to transmit plant virus diseases ranks first among virus vector insects. According to statistics, there are about 465 species of virus-transmitting insects, of which aphids account for about 242 s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N65/20A01N31/16A01N27/00A01P19/00
CPCA01N27/00A01N31/16A01N65/00A01N65/20A01N2300/00
Inventor 胡进锋白万明陈志厚徐茜王长方谢廷鑫王俊陈峰陈彦李秋英
Owner INST OF PLANT PROTECTION FAAS
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