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A synergistic antifeedant for preventing and treating white moth and its application method

A technology of white moth and antifeedant, applied in pest control, botany equipment and methods, applications, etc., can solve the problems affecting the selection of insect hosts, etc., and achieve obvious antifeedant effect, obvious antifeedant effect and long-lasting effect

Active Publication Date: 2020-04-07
BEIJING FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some antifeedants are relative and can only inhibit insect feeding for a certain period of time, but will affect the host selection of insects

Method used

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  • A synergistic antifeedant for preventing and treating white moth and its application method
  • A synergistic antifeedant for preventing and treating white moth and its application method
  • A synergistic antifeedant for preventing and treating white moth and its application method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1 indoor food refusal test

[0029] The antifeedant effect of different secondary substances of Ginkgo biloba compounded with biomimetic glue on white moth larvae was verified by leaf disc method.

[0030] Get 1g ginkgo biloba extract (EGB) and 0.05g ginkgolide (GL) (by bilobalide: ginkgolide A: ginkgolide B: ginkgolide C mass ratio is 5:2:2:1 mix Ginkgolide is a mixture, composed of the above 4 monomers) respectively dissolved in 5ml ethanol solution, then mixed with 45ml biomimetic glue (BG), and another 5ml absolute ethanol and 45ml biomimetic glue mixed solution, set as 3 groups of experimental groups, and 5ml of absolute ethanol and 45ml of distilled water as the control group (CG), a total of 4 groups of medicines (3 groups of experimental groups, 1 group of control group). ,

[0031] Healthy ash leaves that had not been sprayed with pesticides were collected in Beijing Forestry University and soaked in distilled water for 30 minutes to remove surface...

Embodiment 2

[0038] Embodiment 2 outdoor control experiment

[0039]Take 2g of ginkgo leaf extract and 0.1g of ginkgolide and dissolve them in 10ml of absolute ethanol solution and mix them with 90ml of biomimetic glue solution, and separately take 10ml of absolute ethanol and 90ml of biomimetic glue solution as the experimental group. In addition, 10 absolute ethanol and 90 ml distilled water were taken as a control group, and 4 kinds of medicaments (3 experimental groups, 1 control group) were all put into a plastic watering can with a volume of about 150 ml and marked for later use. In June 2016, a piece of 500×200m was selected in Jingjin New City, Baodi District, Tianjin 2 In the sample plot, the dry willow in the sample plot was seriously damaged by the American white moth. Select dry willow branches seriously damaged by American white moth, and record the number of harmful larvae on the branches before spraying. Since the larvae have the habit of transferring harm, the camera was ...

Embodiment 3

[0043] Embodiment 3 antifeedant effect timeliness test

[0044] Select healthy ash trees in Beijing Forestry University, randomly select 30 different leaves on the same side branch, and spray biomimetic glue, biomimetic glue containing 2g of ginkgo leaf extract and 0.1g of ginkgolide on every 10 leaves. For bionic glue, after 10 days, randomly select 30 white wax leaves on the same side branch and spray the above three kinds of chemicals respectively, and after 20 days, randomly select another 30 white wax leaves on the same side branch and spray the above three kinds of chemicals respectively. After 30 days, the above leaves were collected uniformly, and the ash leaves sprayed with the three pesticides for 10 days, 20 days and 30 days were obtained for indoor experiments, and the normal ash leaves sprayed with distilled water were collected as a control. White moth larvae were tested for food resistance for 24 hours using the leaf disc method described in the indoor food resi...

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Abstract

The invention relates to an anti-feedant composition, and specifically discloses a synergistic anti-feedant for controlling fall webworms and a using method thereof. The anti-feedant composition comprises the following raw materials in parts by weight: 1 to 4 parts of a ginkgo biloba extract in parts by weight and 45 to 180 parts of bionic glue in parts by volume. The bionic glue with an adhesive action and a gingko secondary substance with an anti-feedant effect are combined, that is, the anti-feedant composition has the adhesive action for relatively small larvas and can also generate the anti-feedant effect for all larvas. As a plant source anti-feedant, the anti-feedant is obvious in anti-feedant effect, long in time of duration, free of pollution to the environment and free of influence on normal growth of plants, and a new method is provided for controlling the fall webworms. Moreover, the ginkgo biloba extract has the obvious anti-feedant effect as well compared with bilobalide, and is cheaper and easier to get in the market.

Description

technical field [0001] The invention relates to the field of plant protection, in particular to a synergistic antifeedant for controlling white moth and its application method. Background technique [0002] The American white moth is a major invasive species and is listed as an international quarantine pest. American white moth is a leaf-eating pest. Its host plants are of many types, with a wide range of damage and rapid spread, causing serious ecological disasters. The American white moth (Lepidoptera, Arctiidae) is native to North America. It was first discovered in China in 1979 and has now spread to Beijing, Tianjin, Henan, Hebei, Shandong, Shanxi, Jilin, Heilongjiang, Shaanxi and Inner Mongolia. The moth continued to spread southward and occurred in a large area in Anhui Province, China, causing serious economic losses. [0003] The existing American white moth control technology mainly carries out manual control by manually digging pupae, cutting off the screen, etc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N65/00A01N61/00A01N25/24A01N43/90A01P17/00A01P7/04A01M1/14
CPCA01N43/90A01N61/00A01N65/00
Inventor 骆有庆潘龙徐常青任利利
Owner BEIJING FORESTRY UNIVERSITY
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