A kind of attractant for citrus fruit fly

Abstract

The invention discloses an attractant for citrus fruit flies, wherein the components thereof are as follows by mass percentage: (a) d-limonene content is 20-40%; (b) geranyl acetate content is 20-40%; (c) α-terpineol content is 20-40%; and (d) tert-butylphenol content is 5-20%. By using the invention, adult citrus fruit flies in a surrounding area of ​​about 1.5 mu can be lured and killed, large-scale spraying of chemical pesticides can be reduced, and the monitoring and prevention and control effects of citrus fruit flies can be significantly enhanced.

Description

Technical Field

[0001] The present invention relates to a pest attractant, in particular to a pest attractant for citrus fruit flies. Bactroccra (Tetradacus) tsuneonis (Miynke) A plant-based attractant formula that has a good attractant effect on adult insects. Background Art

[0002] The citrus fruit fly is distributed in Guizhou, Guangxi, Hainan, Taiwan and other regions of my country. It mainly feeds on a variety of fruits, especially citrus fruits, but can also attack other types of fruits, such as guava, mango, papaya, etc. The adults lay eggs on mature fruits, and the larvae develop inside the fruits, eating the flesh, causing the fruits to rot, and the fruits to fall before harvest, resulting in reduced production. The life cycle is greatly affected by temperature. Under warm conditions, the entire life cycle from egg to adult only takes a few weeks. In severely affected areas, the insect fruit rate is usually 20%-30%, and in severe cases it is as high as 100%. The citrus fruit fly is a Class II dangerous pest specified in the "List of Dangerous Diseases, Insects and Weeds for Import Plant Quarantine of the People's Republic of China" published by my country. For agricultural production, the citrus fruit fly is a serious pest. It not only directly damages crops, but may also lead to trade restrictions, because many countries will prohibit the import of fruits from areas with citrus fruit fly risks. However, there is currently a lack of monitoring and prevention technology for it. Conventional air defense methods require the use of chemical pesticides, and the cost of controlling the citrus fruit fly is very high, but the benefits are less than the cost, which limits the investment of fruit farmers in its prevention and control costs, resulting in the continuous development of its population and difficulty in control. At present, it is urgent to develop and apply a citrus fruit fly attractant technology that is easy to operate and integrates monitoring and prevention. Summary of the invention

[0003] The purpose of the present invention is to provide a plant-based attractant formula that has a good attractant effect on citrus fruit flies, can be used for monitoring and preventing and controlling citrus fruit flies, is safe, environmentally friendly, low-cost and highly effective.

[0004] The citrus fruit fly attractant of the present invention is characterized in that the attractant is composed of the following components by mass percentage: (a) d-limonene content is 20-40%; (b) geranyl acetate content of 20-40%; (c) α-terpineol content of 20-40%; (d) Tert-butylphenol content is 5-20% Preferably, the attractant is composed of the following components by mass percentage: (a) d-limonene content is 20%; (b) geranyl acetate content of 40%; (c) α-terpineol content of 30%; (d) Tert-butylphenol content: 10% The optimal ratio of main physical and chemical indicators of the citrus fruit fly attractant of the present invention is: (a) d-limonene content is 20%; (b) geranyl acetate content of 40%; (c) α-terpineol content of 30%; (d) The tert-butylphenol content is 10%.

[0005] The beneficial effects of the present invention are as follows: By applying the present invention, adult fruit flies of citrus fruit flies in a surrounding area of ​​about 1.5 mu can be lured and killed, large-scale spraying of chemical pesticides can be reduced, and the monitoring and prevention and control effects of the fruit flies of citrus fruit flies can be significantly enhanced. DETAILED DESCRIPTION

[0006] A method for preparing citrus fruit fly attractant: Select the above four ingredients, mix them in a ratio of 20% d-limonene, 40% geranyl acetate, 30% α-terpineol, and 10% tert-butylphenol, put them into a 10 mL plastic bottle, and insert an appropriate amount of absorbent cotton to slow down volatilization and prolong the field efficacy time. Seal the bottle for later use.

[0007] Hang special insect traps near orchards where the fruit fly may be present, open the product cover and place it in the traps to kill the fruit fly. The protection period is up to 30 days.

[0008] In the citrus orchard The fly traps treated with the attractant of the present invention were hung in a citrus orchard, and the fly traps hung alone were used as controls, with 10 replicates for each treatment. The number of citrus fruit flies attracted by each treatment was checked every 7 days. The survey was conducted 4 times in total. The results showed that the number of citrus fruit flies attracted by the fly traps treated with the attractant of the present invention was significantly greater than that by the treatment of hanging the fly traps alone.

[0009] The test results are as follows:

Claims

1. An attractant for the citrus fruit fly, characterized in that The attractant is composed of the following components by mass percentage: (a) d-limonene content is 20 - 40%; (b) Geranyl acetate content is 20 - 40%; (c) α-terpineol content is 20 - 40%; (d) The tert-butylphenol content is 5-20%.

2. The attractant for the citrus fruit fly according to claim 1, characterized in that The attractant is composed of the following components by mass percentage: (a) d-limonene content is 20%; (b) geranyl acetate content of 40%; (c) α-terpineol content of 30%; (d) The tert-butylphenol content is 10%.

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