Method for screening volatile matter for repelling macrosiphum avenae from chrysanthemum filial generation population

Abstract

The invention relates to a method for screening a volatile matter for repelling microsiphum avenae from a chrysanthemum filial generation population. The method provided by the invention comprises the following steps of: performing aphid resistance evaluation on chrysanthemum parents and filial generation plants; selecting olfaction behaviors of the macrosiphoniella sanborni on volatile matters in chrysanthemum leaves; collecting and identifying the volatile matters of the chrysanthemum leaves; performing data analysis on leaf volatile matters of the chrysanthemum parents and filial generations, and screening out volatile matters with difference characteristics; carrying out a behavioral test on the macrosiphoniella sanborni by adopting a chemical standard substance of a volatile matter with different characteristics, and finally determining a compound component with a repelling effect. By adopting the method disclosed by the invention, the fact that the 2-methylacrolein has a repelling effect on the macrosiphoniella sanborni is determined for the first time. According to the method disclosed by the invention, the compound active molecules with the repelling effect on the macrosiphoniella sanborni are accurately and efficiently screened out, and a powerful basis is provided for preparing a macrosiphoniella sanborni repellent.

Description

technical field [0001] The present invention relates to the technical field of preparation of aphid repellents, in particular to the determination method and application of compounds that have a repelling effect on Aphis chrysanthemum. method of volatiles. Background technique [0002] Macrosiphoniella sanborni (Macrosiphoniella sanborni) belongs to the Homoptera Aphididae, and is an oligophagous insect that mainly damages the Compositae plants. Common hosts such as Atractylodes macrocephala, most of the wild species and cultivated species of Chrysanthemum. Chrysanthemum chrysanthemum sucks plant juice, causing leaves to chlorotic, yellow, wilt, and even dry, resulting in abnormal growth and development of chrysanthemums, and even more damage during flowering, seriously affecting the quality of ornamental chrysanthemums and medicinal chrysanthemums. The honeydew secreted by Aphid chrysanthemum can cause sooty rot and seriously affect the ornamental value. In addition, as ...

AI Technical Summary

Problems solved by technology

The chrysanthemum chrysanthemum sucks the plant juice, causing the leaves to chlorotic, yellow, wilt, and even dry, resulting in deformed growth and development of chrysanthemums, and even more damage during flowering, seriously affecting the quality of ornamental chrysanthemums and medicinal chrysanthemums

The honeydew secreted by Aphid chrysanthemum can cause sooty rot and seriously affect the ornamental value

In addition, as the carrier of pathogens such as chrysanthemum stem necrosis virus, chrysanthemum chlorosis virus, and chrysanthemum dwarfing virus, Aphid chrysanthemum poses an extremely serious threat to the production of cultivated chrysanthemums and seriously restricts the development of the chrysanthemum industry.

[0003] At present, researches on the control of Aphid chrysanthemum are mainly focused on physical control and chemical control, among which chemical control is dominant, but chemical control is not an environmentally friendly way, and will cause great harm to both the chrysanthemum product itself and the environment. Negative impact

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