Rice gall midge sex attractant and application thereof

A rice gall midge and attractant technology, applied in the field of insect pheromones, can solve the problems of sharp decline in the population of natural enemies, increased resistance of rice gall midge, and excessive pesticide residues, etc., to achieve a decrease in insect population density, low cost, and good accuracy Effect

Active Publication Date: 2016-07-06
CHINA AGRI UNIV
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  • Abstract
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AI Technical Summary

Problems solved by technology

Because the larvae are hidden inside the standard onion, it is difficult to directly contact and kill them. Systemic pesticides are mainly used for chemical control in production, which can easily cause pesticide residues to exceed the standard and affect product quality. With the continuous improvement of medicinal properties, the sharp decline in the population of natural enemies, and environmental pollution and other problems

Method used

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  • Rice gall midge sex attractant and application thereof
  • Rice gall midge sex attractant and application thereof
  • Rice gall midge sex attractant and application thereof

Examples

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specific Embodiment approach

[0032] The present invention will be described below through specific examples, but the present invention is not limited thereto.

[0033] Unless otherwise specified, the experimental methods used in the following examples are conventional methods; the reagents and materials used in the following examples, unless otherwise specified, can be obtained from commercial sources.

[0034] (2S, 6S)-2,6-diacetoxyheptane (12) and (6S)-6-acetoxyl-2-heptanone (11) used in the present invention according to figure 1 The synthetic route diagram shown is prepared, and the specific preparation method is as follows:

[0035] 1) Synthesis of (R)-4-methylphenylmethyl sulfoxide (2)

[0036] Under the protection of nitrogen, 200mL of anhydrous dichloromethane, 24.8g of (R.R)-diethyl tartrate, and 16.8g of tetraisopropyl titanium oxide were added to a 500mL Shrek bottle, and then 1.08mL was slowly added dropwise after stirring for 10 minutes. water, the system was stirred at 25°C for 30min, then...

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Abstract

The invention discloses rice gall midge sex attractant and application thereof.The rice gall midge sex attractant is prepared from two rice gall midge sex pheromone effective components, namely, (2S,6S)-2,6-Diacetoxyheptane and (6S)-6-acetoxyl group-2-heptanone shown in the formula II, wherein the weight ratio of (2S,6S)-2,6-Diacetoxyheptane to (6S)-6-acetoxyl group-2-heptanone is 10:(0.5-5).The invention further provides application of the rice gall midge sex attractant in following products, namely, products used for monitoring rice gall midge occurrence situations and/or predicting rice gall midge damage occurrence, products used for interfering with rice gall midge mating and/or trapping and killing rice gall midge, and products used for detecting rice gall midge damage.The invention further provides a lure prepared from the rice gall midge sex attractant.The sex attractant prepared from application sex pheromone and the lure of the attractant can be used for conducting population monitoring and comprehensive prevention and control on rice gall midge.The sex attractant is low in cost, high in efficiency and suitable for forecasting occurrence rules of pests hidden in insect gall.

Description

technical field [0001] The invention belongs to the technical field of insect pheromones, and in particular relates to a rice gall mosquito attractant and an application thereof. Background technique [0002] Rice gall midge, Orseoiaoryzae (Wood-Mason), Diptera, Orseoiaryzae, is now distributed in Guangdong, Guangxi, Fujian, Yunnan, Guizhou, Hainan, Jiangxi, Hunan, Taiwan, Vietnam, Myanmar and other Southeast Asian countries. It is a common pest on rice, with multiple generations a year and overlapping generations. Mainly through the larvae sucking the juice of the rice growth point, the base of the damaged rice seedlings swells, and then the heart leaves stop growing and elongate from the leaf sheath to form a light green hollow onion tube, and the onion tube extends outward to form a standard onion. Paddy rice all can suffer from seedling to young panicle formation stage, suffer heavy one and can't heading, almost all form scabies or twist and can't be firm so that paddy ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N37/02A01N37/42A01N25/10A01P19/00A01P7/04
CPCA01N25/10A01N37/02A01N37/42A01N2300/00
Inventor 刘亚佳
Owner CHINA AGRI UNIV
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