Halogenated pheromone analogue for controlling spotted cutworm

A horoscope cutworm and pheromone technology, applied in the fields of chemicals for biological control, pest control, application, etc., to achieve the effects of less consumption, lower reproduction rate, and lower encounter probability

Active Publication Date: 2017-10-24
杨凌翔林农业生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, no pheromone analogues that have super strong attraction and/or

Method used

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  • Halogenated pheromone analogue for controlling spotted cutworm
  • Halogenated pheromone analogue for controlling spotted cutworm
  • Halogenated pheromone analogue for controlling spotted cutworm

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The preparation of embodiment 1 trans-5-tetradecenyl-2-monofluoroacetate

[0025] Compounds in the present invention can be synthesized by the same route, Figure 9 Shown is the synthesis method using trans-5-tetradecenyl-2-fluoroacetate as an example.

[0026] Dissolve 2.00g (9.42mmol) trans-5-tetradecenol in 27mL of anhydrous dichloromethane, add 8.70×10-2g of 4-dimethylaminopyridine, ice-bath, and keep the temperature at 0°C From left to right, gradually add the dichloromethane solution of fluoroacetic anhydride dropwise, after the dropwise addition, ice bath for 30min, react overnight at room temperature, remove the solvent by rotary evaporation under reduced pressure, and separate by chromatography column to obtain 2.30g (8.45mmol) of yellow oil, producing The rate is 89.5%.

Embodiment 2

[0027] Embodiment 2 field biological activity determination test

[0028] Lure preparation:

[0029] (1) The lure carrier adopts a cylindrical green concave rubber plug with a height of 1 cm and a bottom diameter of 1 cm.

[0030] (2) Mix cis-7-tetradecene acetate and cis-5-tetradecene acetate in a mass ratio of 90:8 and dilute with n-hexane to a concentration of 1 μg / μL of solution.

[0031] (3) Pipette 98 μL (1 μg / μL) of the cutworm pheromone solution above and add it to the bottom of the rubber head. The cutworm pheromone solution will penetrate into the rubber with the solvent (n-hexane). After the solvent (n-hexane) evaporated, 98 μg of cutworm pheromone was obtained.

[0032] (4) Trans-5-tetradecenyl-2-monofluoroacetate, trans-5-tetradecenyl-2-monochloroacetate, trans-5-tetradecenyl- 2,2-Difluoropropionate, trans-5-tetradecenyl-2,2-dichloropropionate, trans-5-tetradecenyl-2,2,2-trifluoroacetic acid Ester, trans-5-tetradecenyl-2,2,2-trichloroacetate, trans-5-tetrade...

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PUM

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Abstract

The invention discloses a halogenated pheromone analogue for controlling a spotted cutworm. The general formula of the halogenated pheromone analogue is ROCOCnHaXb. The halogenated pheromone analogue is capable of more effectively trapping and killing a male worm of the spotted cutworm and interfering with orientation of the male worm to a female worm, so that the encountering probability of the female worm and the male worm is reduced, mating is disturbed, the reproductive rate is reduced and extinction of pest populations is gradually controlled, thereby achieving the target of controlling injurious insects. The halogenated pheromone analogue is low in dosage and friendly to environment, can be accurately applied to insect condition prediction, mating disturbance and mass trapping, and is of great significance in comprehensive treatment of the spotted cutworm.

Description

technical field [0001] The invention belongs to the technical field of biological control, and in particular relates to a halogenated pheromone analog used for preventing and controlling cutworms. Background technique [0002] Bazi cutworm, belonging to Lepidoptera Noctuidae, is an important root-cutting pest of major agriculture and grasslands. The larvae have feigned death, are nocturnal and have strong concealment. Distributed all over the world, it can harm tobacco, tomato, cabbage, grapes, etc. It has a wide range of food habits. In my country, it mainly harms more than 100 kinds of plants such as food crops, cotton, tobacco, vegetables, and medicinal plants. It is famous for harming the seedlings of various plants , and its geographical distribution spreads all over the country. At present, the methods of its control mainly include spraying chemical agents, trapping and killing adults. Long-term use of chemical agents to control cutworms may cause pests to develop re...

Claims

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Application Information

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IPC IPC(8): C07C69/63A01N37/02A01P19/00A01P7/04A01M1/02
CPCA01M1/02A01N37/02C07C69/63
Inventor 梅向东王安佳翁爱珍李克斌张帅折冬梅宁君
Owner 杨凌翔林农业生物科技有限公司
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