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A compound that increases the amount of predation and egg-laying of small flower stinkbugs

A technology of stink bug and compound, which is applied in the field of insect biology and ecology, can solve problems such as affecting the trapping effect and has not yet been found, and achieve the effects of protecting the ecological environment, increasing biodiversity and reducing the amount of use.

Active Publication Date: 2021-11-09
INST OF PLANT PROTECTION FAAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Each of the dominant compounds that act on pests has a somewhat strong binding profile to the corresponding olfactory odorant binding protein receptors on the insect's antennae, and there is a binding threshold beyond which the effect may It will be counterproductive, so increasing the ratio of a certain compound at will will affect the final trapping effect
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Method used

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  • A compound that increases the amount of predation and egg-laying of small flower stinkbugs
  • A compound that increases the amount of predation and egg-laying of small flower stinkbugs
  • A compound that increases the amount of predation and egg-laying of small flower stinkbugs

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Compound preparation:

[0030] 1.1 Preparation of 50 μg / ml single component solution of the present invention

[0031] Preparation of 50 μg / ml n-hexanal solution: Add 5 μl of the previously prepared 10 μg / μl n-hexanal standard compound into 995 μl of liquid paraffin, and mix evenly;

[0032] Preparation of 50 μg / ml trans-2-nonenal solution: Add 5 μl of the pre-prepared 10 μg / μl trans-2-nonenal standard compound into 995 μl of liquid paraffin and mix evenly;

[0033] Preparation of 50 μg / ml 2-methylbutyraldehyde solution: add 5 μl of 10 μg / μl 2-methylbutyraldehyde standard compound prepared in advance to 995 μl of liquid paraffin, and mix evenly;

[0034] Preparation of 50 μg / ml 1-octen-3-ol solution: add 5 μl of 10 μg / μl 1-octen-3-ol standard compound prepared in advance to 995 μl of liquid paraffin, and mix evenly;

[0035] Preparation of 50 μg / ml ethanol solution: Add 5 μl of the previously prepared 10 μg / μl ethanol standard compound into 995 μl of liquid paraffin, ...

Embodiment 2

[0046] The Antennary Potential Responses of the Mint Bug to Various Components and Mixtures

[0047] 20 µl of sample solution was evenly dropped on a "V" shaped filter paper strip with a length of 5 cm and a width of 0.5 cm, and was placed in a Pasteur dropper. 1cm away from the tentacles. Adjust the continuous gas flow to 124ml / min, stimulate the gas flow to 20ml / min, and each stimulation time to 0.2s. There was an interval of 40 s between the two stimulations to ensure the complete recovery of the antennal sensory organs. Each component and compound were stimulated 3 times in parallel on one antennae to get the average value, and the test was repeated for at least 5 antennae. The EAG relative reaction value of each component and complex was compared with liquid paraffin. For each sample to be tested, the stimulation sequence is liquid paraffin, sample to be tested, and liquid paraffin. Take the average value of the two comparisons before and after.

[0048] EAG relative...

Embodiment 3

[0053] The whole test was carried out in a rectangular glass releaser, which was placed in an artificial climate chamber at a temperature of 25±1°C, a light time of 16:8 h (L:D), and a relative humidity of (70±5)% RH. The treatment group (the compound of the present invention, formula 1, formula 2, and formula 3) released 4 adult stink bugs respectively, placed 80 thrips on four leaves, and treated the compound of the present invention, formula 1, formula 2 or formula 3 Hangs from the top of the glass release. The blank control group did not release the complex, and other conditions were the same as the treatment group. The treatment groups (compound of the present invention, formula 1, formula 2, and formula 3) and the control group (containing only liquid paraffin) were repeated 3 times, and the number of thrips were recorded after 1 day of starvation before the release of the small flower bugs, and 3 days later.

[0054] The results show that if figure 1 As shown, the pre...

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Abstract

The present invention provides a kind of compound that improves the amount of predation and egg laying of small flower stinkbug, which consists of 50 μg / ml of n-hexanal, trans-2-nonenal, 2-methylbutyraldehyde, 1-octene-3-alcohol , hexanol, 3-octanol, phyllyl isobutyrate, phyllyl valerate, 3-octanone, and ocimene are mixed in the same proportion. The complex is an active substance screened from volatiles of various pest host plants. It is formulated according to the proportion. It has various types and strong complementarity of action sites. It can stimulate the reproductive behavior of small flower bugs and greatly increase the egg production of small flower bugs, which can be increased by 40% compared with normal conditions. The compound of the invention has multiple effects, provides a basis for the research on the chemical ecology and neurobehavioral mechanism of the florid bug, and provides a stable insect source for the effective use of the florid bug in the field for pest control.

Description

technical field [0001] The invention relates to the fields of insect biology and ecology, in particular to a compound for increasing the amount of predation and egg-laying of stink bugs. Background technique [0002] East Asian flower bugs and southern flower bugs belong to Hemiptera flower bugs. Southern flower bugs are dominant species of predatory natural enemies widely distributed in southern my country. East Asian flower bugs are one of the important predatory natural enemy insects in northern my country. They prey on a large amount , a wide range of predation, diverse host plants, and a good control effect on small pests. It mainly feeds on insects such as thrips, aphids, spider mites, whiteflies, red spiders, cotton bollworms, plant pollen, eggs and small larvae of noctuid insects, and is used to control the occurrence of pests such as orchards, farmland, greenhouse flowers and trees. It plays an important role and has become the main species developed and utilized by...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N35/02A01N31/02A01N37/02A01N27/00A01P21/00
CPCA01N27/00A01N31/02A01N35/02A01N37/02
Inventor 田厚军魏辉陈勇林硕陈艺欣林涛游泳曾兆华
Owner INST OF PLANT PROTECTION FAAS
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