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A new compound repellant of Lygus spp. and its preparation method and application

A technology for compound repelling and chlorophyll bug, which is applied in the directions of animal repellent, botanical equipment and method, application, etc., can solve problems such as unpleasantness, and achieves reduction of irritating pungent odor, long lasting effect, and preparation and high efficiency. Efficient use of methods

Active Publication Date: 2020-09-01
INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, dimethyl disulfide has a strong pungent pungent smell, which is unpleasant, while dodecaldehyde (CAS: NO.112-54-9, also known as lauric aldehyde) has a floral smell

Method used

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  • A new compound repellant of Lygus spp. and its preparation method and application
  • A new compound repellant of Lygus spp. and its preparation method and application
  • A new compound repellant of Lygus spp. and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The indoor repellent effect test uses such as figure 1 The device shown (810mm×250mm×250mm) is composed of 5 sub-chambers, and the partitions between each sub-chamber are evenly distributed with many round holes, and the circular holes on the partitions on both sides are gradually reduced from the most middle sub-chamber (30mm to 10mm ), put the device into a behavior observation box (100cm×100cm×80cm), and the behavior observation box is a stainless steel shell. The indoor temperature is 26-28°C, and the relative humidity is 60%-70%.

[0026] Before the test, starvation treatment was carried out for 4 hours to the adults of Lygus lucidum (only a cotton ball dipped in pure water was provided), and then they were used for the behavior selection test. The lure in room A is obtained by mixing dimethyl disulfide and dodecanal, the ratios are 10:1, 5:1, 3:1, 2:1, 1:1, 1:2, 1:3, 1 :5 and 1:10 (mass ratio), and then dissolved in liquid paraffin oil, the final concentration o...

Embodiment 2

[0029] Preparation of compound repellent of Lygus viridiensis and construction of sustained-release system: the effective components of repellent dimethyl disulfide and dodecanal (mass ratio 1:10) mixture (adding 0.1% BHT for anti-oxidation) After diluting the liquid paraffin oil at 1:10, 1:20, 1:40 and 1:80 (volume ratio), pipette 1.0 mL into 2.0 mL polyethylene slow-release vials and seal them, and repeat 3 times. Place the sealed vials outdoors. On the 1st, 15th, 30th, 45th, and 60th day after storage, take out the polyethylene slow-release vials, collect volatiles with a gas collection device for 1 hour, and rinse with 400ul chromatographically pure n-hexane for adsorption. Put the eluate into a 1.5ml standard sample bottle and store it in a refrigerator at 4°C for subsequent quantitative analysis, and the polyethylene slow-release vial should continue to be placed outdoors.

[0030] The degradation of effective components of the repellent diluted in different concentratio...

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PUM

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Abstract

The invention relates to a novel compound repellent for apolygus lucorum as well as a preparation method and application thereof. According to the invention, dodecyl aldehyde is mixed with dimethyl disulfide in a proper ratio, so that the pungent odor of the dimethyl disulfide is reduced, and the repellent effect on the apolygus lucorum (adult insects) is ensured. The novel compound repellent forthe apolygus lucorum provided by the invention is efficient and simple in preparation and use method, low in price, and long in lasting period.

Description

technical field [0001] The invention belongs to the technical field of biological control of Lygus lucidum, and in particular relates to a novel compound repellent of Lygus lucidum and its preparation method and application. Background technique [0002] The green Lygus bug (Apolygus lucorum) is an important agricultural pest with more than 200 recorded host plants. In the past 10 years, the harm of Lygus spp. has been increasing year by year in the Yangtze River Basin, the Yellow River Basin and the inland cotton area of ​​Northwest China. It has become the main pest of various economic crops such as cotton, jujube and grape. Both adults and nymphs of the green Lygus can pierce and suck the terminal buds, young leaves, buds and flowers, fruits (or cotton bolls) and other tissues of harmful host plants, causing broken leaves, clusters of side branches, young buds falling off or shrinking, flowers and fruits Harmful symptoms such as deformation have a huge impact on crop yie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N35/02A01N31/02A01P17/00
CPCA01N31/02A01N35/02
Inventor 张永军肖勇王琪安兴奎陆宴辉吴孔明
Owner INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI
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