Bactrocera dorsalis amphoteric attractant as well as preparation method and application thereof

Abstract

The invention provides a bactrocera dorsalis amphoteric attractant as well as a preparation method and an application thereof. The bactrocera dorsalis amphoteric attractant comprises hesperetin, alcohols, ketones, methyleugenol, esters, vegetable oil, an antioxidant, added auxiliary components such as an antioxidant, an anti-ultraviolet agent and an anti-bactericide agent as well as a thickening agent, a slow-release agent and the like and is put in a deep color container with a cover so as to be preserved. The main components and the raw materials of the amphoteric attractant derive from natural plant extractives, so that the amphoteric attractant is environmentally-friendly and is safe for non-target organisms; the bactrocera dorsalis amphoteric attractant has a very good trapping effect on female adults and male adults of bactrocera dorsalis in combination with the integrated application of other solid sustained-release materials and is capable of effectively reducing the population cardinal number of the bactrocera dorsalis in a using region generation by generation. The bactrocera dorsalis amphoteric attractant is simple in synthesis process, low in cost and suitable for wide application and popularization in orange producing areas and other bactrocera dorsalis host crop producing areas and is also effective for injurious insects such as bactrocera zonata and melon flies.

Description

technical field [0001] The invention relates to a sexual attractant for Bactrocera dorsalis and a preparation method thereof, as well as a method for using it in orchards. Background technique [0002] Bactrocera citrus, also known as Bactrocera citrus, Oriental fruit fly, yellow fly, fruit maggot, etc., the Latin scientific name is Bactrocera dorsalis Hendel, and the English name is Oriental fruit fly. Bactrocera dorsalis belongs to Diptera Tephritidae oligochaetes, commonly known as fruit maggots. It is distributed in the United States, Australia, India, Pakistan, Japan, Philippines, Indonesia, Thailand, Vietnam and other countries and regions abroad, and domestically in Guangdong, Guangxi, Fujian, Jiangsu, Zhejiang, Shanghai, Sichuan, Chongqing, Hunan, Hubei, Taiwan, etc. There are distributions in the orange producing areas, mainly the larvae feed on the fruit pulp, forming maggots, causing rot and causing early fruit shedding, which seriously affects the yield and qual...

AI Technical Summary

Problems solved by technology

At present, only a small number of reports indicate that some "sexual attractants" attract both male and female adults. Usually, hydrolyzed protein is added on the basis of methyl eugenol, which has a better effect on attracting and killing female and male adults of Bactrocera dorsalis. effect, but there are also obvious defects. If the reason is that the storage and use of hydrolyzed protein are inconvenient, it usually needs to be produced and used immediately, and it is difficult to form mature products for large-scale production for promotion and sales, and the practicability is greatly limited.

[0009] Nowadays, the attractants for trapping and killing Bactrocera dorsalis are mainly to lure the males. Although luring the males, it is still inevitable that some fertilized females will lay eggs on fruits and vegetables, which will cause huge losses to the production of fruits and vegetables. Bacteria dorsalis can also lay eggs without fertilization, but there are few reports on the types of attractants that specifically attract Bactrocera dorsalis females or have obvious attractant effects on both sexes, mainly some protein attractants

[0010] In my country, the area of ​​host fruit trees suitable for damage by Bactrocera dorsalis is close to 8 million hectares, that is, the total area exceeds 100 million mu. If effective prevention and control measures are lacking, Bactrocera dorsalis will spread rapidly and will affect many fruits and some vegetables in my country. The generation of varieties causes serious harm and huge losses

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