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A method of using Jerusalem artichoke to lure predatory natural enemy insects of aphids

A technology of natural enemy insects and aphids, applied in the field of crop pest control, can solve the problems of difficult artificial breeding and scattered distribution of natural enemy insects, and achieve the effect of easily attracting natural enemy insects

Active Publication Date: 2022-05-13
NORTHEAST AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the existing problems of scattered distribution of natural enemy insects and difficulty in artificial breeding in the control of field diseases and insect pests by natural enemy insects, the present invention provides a method for using Jerusalem artichoke to lure predatory natural enemy insects of aphids

Method used

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  • A method of using Jerusalem artichoke to lure predatory natural enemy insects of aphids
  • A method of using Jerusalem artichoke to lure predatory natural enemy insects of aphids
  • A method of using Jerusalem artichoke to lure predatory natural enemy insects of aphids

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specific Embodiment approach 1

[0022] Embodiment 1: Control of soybean field aphids

[0023] In 2017, at the Xiangyang Experimental Base of Northeast Agricultural University, Jerusalem artichoke was planted around the soybean field while soybeans were being sown. The area ratio of the Jerusalem artichoke field to the soybean field was 1:100. In the early stage of soybean aphid spots in the soybean field in mid-June, 48% bentazone was used The water agent is mixed with 7% fomesafen, and sprayed at a concentration of 100ml per mu. The next day after the treatment, the Jerusalem artichoke plants can gather a large number of natural enemy insects, mainly heterochromia ladybugs. The number of natural enemy insects in the Jerusalem artichoke field was more than 100 times that before treatment. After 3 days, the number of natural enemies in the nearby soybean fields increased significantly, especially in the plots where aphid spots occurred. These natural enemies can effectively control the aphids during the spot o...

specific Embodiment approach 2

[0027] Embodiment 2: Control of orchard aphids

[0028] In 2018, Jerusalem artichoke plots were set up around the orchard of the Xiangyang Experimental Base of Northeast Agricultural University, with an area ratio of 1:100. Three times in June, July, and August, 50ml of 48% bentazone water per mu was used. Mix 50ml of 7% fomesafen for spray treatment, summon natural enemy insects, and effectively control aphids and other pests in the orchard. Before and after treatment, 5 points were randomly selected on the diagonal line of Jerusalem artichoke field and orchard, and the area of ​​each point was 1m 2 , for investigation, the data are shown in Table 2-Table 4. It can be seen that Jerusalem artichoke can be treated multiple times, and after each treatment, natural enemy insects (mainly Heterochromatia) can be effectively recruited, thereby increasing the natural enemy density in the surrounding orchards.

[0029] Table 2 Investigation of the density (number per square meter) o...

specific Embodiment approach 3

[0036] Specific implementation mode 3: control of fresh corn field aphids

[0037] In 2019, at the Xiangyang Experimental Base of Northeast Agricultural University, Jerusalem artichoke was planted on the side of the fresh corn field while the fresh corn was sowing. The area ratio of the Jerusalem artichoke field to the fresh corn field was 1:100. Use 48% bentazone water solution mixed with 7% fomesafen, and spray at a concentration of 100ml per mu. The next day after the treatment, the Jerusalem artichoke plants can gather a large number of natural enemy insects, especially the heterochromia ladybugs. host. After 3 days, the density reached 41 heads per square meter; at the same time, the number of natural enemies in the surrounding fresh corn fields also increased significantly, effectively controlling corn aphids and other pests.

[0038] Before and after the treatment of Jerusalem artichoke with herbicides, the Jerusalem artichoke field and the soybean field were randomly ...

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Abstract

The invention discloses a method for using Jerusalem artichoke (Helianthus tuberosus) to lure aphid predatory natural enemy insects, and belongs to the technical field of crop pest control. The present invention utilizes ecological principles to spray herbicides such as bentazone and other plant photosynthesis inhibitors or diphenyl ether plant protoporphyrinogen oxidase inhibitors such as fomesafen or their herbicides to Jerusalem artichoke. Mixture, forcing Jerusalem artichoke to produce and release a "help" signal similar to being harmed by pests, and to gather natural enemy insects (ladybugs, lacewings and hoverflies, especially Heterochromatia) to control certain pests Especially aphids. Moreover, Jerusalem artichoke is a perennial plant and does not require special management. After spraying herbicides, it will only temporarily delay growth and will not die. Therefore, it can be sprayed many times to gather natural enemies and provide comprehensive management of plant diseases and insect pests. The control of diseases and insect pests in organic agriculture provides a new method.

Description

technical field [0001] The invention relates to a method for using Jerusalem artichoke (Helianthus tuberosus) to lure predatory natural enemy insects of aphids, and belongs to the technical field of crop pest control. Background technique [0002] Aphids, commonly known as greasy insects or honey insects, are one of the most destructive herbivorous pests. They cause harm by sucking the juice of young plant parts. Aphids often transmit plant viruses during the feeding process, and they can be called one of the world's most viral insects. First, it is seriously harmful to agriculture, forestry and horticulture. How to effectively prevent and control aphids has been an important topic that many scientific researchers have devoted themselves to for many years. [0003] In the existing production, the control methods of aphids mainly include chemical pesticide control, genetic engineering control and biological control. At present, chemical pesticide control is still the main me...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N43/88A01N41/06A01N43/80A01P7/04A01G13/00A01G22/25
CPCA01N43/88A01N41/06A01N43/80A01G13/00A01G22/25
Inventor 赵文忠孙文鹏胡志凤戚国强
Owner NORTHEAST AGRICULTURAL UNIVERSITY
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