Coconut tree stem essential oil extract and application thereof in Oryctes rhinoceros(Linnaeus) attractant

A technology for extracting essential oils and rhinocarpus, which is applied in the field of extraction and application of plant-derived drugs, can solve the problems of unreasonable utilization, harm to the heart leaves and young tissues of coconuts, and less release of natural enemies, and achieve good results. Environmental and ecological benefits, good attracting effect, effect of simple preparation method

Inactive Publication Date: 2013-03-20
COCONUT RES INST OF CHINESE ACAD OF TROPICAL AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Coconut is an important crop and greening tree species in tropical and subtropical regions of my country. There is a large amount of stem waste every year. At present, most of these coconut stems are abandoned in the field or directly burned, and only a small part is used as building materials or for Deep processing, most of them are not used reasonably and are wasted in vain
[0003] Rhinoceros biruta, also known as the unicorned unicorn and the rhinoceros beetle, the main host plants are coconuts, oil palms, betel nuts, and various palm plants. Coconuts are especially severely damaged and often cause heavy losses. An important pest, the insect mainly harms the heart leaves and young tissues of coconuts with adults, and in severe cases, it will cause large-scale breakage of the heart leaves, which seriously affects the development of the coconut industry
[0004] At present, the prevention and control measures of rhinoceros bicariae are mainly the use of natural enemies, artificial capture, chemical control, etc. Although the use of natural enemies to kill rhinoceros bicariae can achieve a certain control effect, the control effect is poor if the release of natural enemies is small, and the release of large amounts will cause Lead to the invasion of alien species, causing secondary disasters
Manual capture requires a lot of manpower and material resources, and the efficiency is low
Chemical control requires the use of a large number of chemicals, such as methadone powder, dibromophos, etc., the control effect is better, but it is easy to cause environmental pollution and enhance its drug resistance
[0005] Insect attractant is an active substance produced by plants or artificially synthesized that has a behavioral attractant effect on specific insects. It uses its smell, taste, and pheromone to play an attractant effect. It is an environmentally friendly pest control method. After retrieval , there is no report on the application of coconut stem essential oil extract on the attractant

Method used

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  • Coconut tree stem essential oil extract and application thereof in Oryctes rhinoceros(Linnaeus) attractant
  • Coconut tree stem essential oil extract and application thereof in Oryctes rhinoceros(Linnaeus) attractant
  • Coconut tree stem essential oil extract and application thereof in Oryctes rhinoceros(Linnaeus) attractant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Preparation of Coconut Stem Essential Oil Extract by Steam Distillation:

[0019] Take 5 kg of dead coconut stems, clean them indoors, chop them up, put them in a distillation bottle, and continue distillation with steam distillation for 24 hours. The extract was placed in a rotary evaporator and concentrated at 35°C until the extract became oily and no solvent was precipitated out to obtain the coconut stem essential oil extract.

[0020] Determination of field application effect of coconut stem essential oil extract:

[0021] Choose the dosage of 0.5ml / mu, 1 ml / mu and 1.5 ml / mu, hang the extract on the vertical trap of Rhinoceros bicariae, and set up a trap for each mu. In order to ensure the experimental effect, the experimental site is selected At the experimental base of the Coconut Research Institute of the Chinese Academy of Tropical Agricultural Sciences, each treatment was placed in a checkerboard manner, repeated 3 times, and the number of adults of Rhinocero...

Embodiment 2

[0023] Preparation of Coconut Stem Essential Oil Extract by Soxhlet Extraction:

[0024] Take 5 kg of dead coconut stems, wash them indoors, dry them at 40°C and crush them, put them in a Soxhlet extractor, and use petroleum ether for Soxhlet extraction for 18 hours, collect the extracts and place them in a rotary evaporator, and depressurize at 45°C When it is concentrated until the extract becomes oily and no solvent is separated out, the essential oil extract of the coconut stem is obtained.

[0025] Determination of field application effect of coconut stem essential oil extract:

[0026] Test method and test site are the same as implementation example 1, and the results are as follows figure 2 shown.

Embodiment 3

[0028] Preparation of coconut stem essential oil extract by solvent maceration:

[0029] Collect the dead coconut stem tissue, wash it with clean water, put it in the shade of the room, put it into a blast drying box for drying at 45°C, cool and crush it to obtain the coconut stem powder; weigh 1kg of the coconut stem powder and place it in soaking In the cylinder, add the organic solvent diethyl ether according to the volume ratio of 1:10, soak for more than 24 h, and obtain the coconut stem ether extract after filtering; transfer the coconut stem extract to a rotary evaporator, and concentrate under reduced pressure at 35°C When the extract turns into a viscous paste and no solvent is separated out, the coconut stem essential oil extract is obtained.

[0030] Determination of field application effect of coconut stem essential oil extract:

[0031] Test method and test site are the same as implementation example 1, and the results are as follows image 3 shown.

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Abstract

The invention belongs to the field of extraction and application of the plant source medicines, and relates to a coconut tree stem essential oil extract and an application thereof in an Oryctes rhinoceros(Linnaeus) attractant. The coconut tree stem essential oil extract is prepared by smashing the coconut tree stem, extracting with a solvent by a conventional digestion method to get the extract, and then, concentrating the extract until the end of separation of the solvent to get the coconut tree stem essential oil extract. Pharmacodynamic tests show that the coconut tree stem essential oil extract has an attractive function when the Oryctes rhinoceros(Linnaeus) lays eggs, thus, the coconut tree stem essential oil extract can be used for developing a plant source Oryctes rhinoceros(Linnaeus) attractant so as to provide an effective way for preventing and treating the Oryctes rhinoceros(Linnaeus); and the Oryctes rhinoceros(Linnaeus) attractant is simple to prepare and low in cost, and has excellent environmental and ecological benefits.

Description

technical field [0001] The invention belongs to the field of extraction and application of plant-derived medicines, and relates to an extract and its application, in particular to an extract of coconut stem essential oil and its application as an attractant for rhinocarp. Background technique [0002] Coconut is an important crop and greening tree species in tropical and subtropical regions of my country. There is a large amount of stem waste every year. At present, most of these coconut stems are abandoned in the field or directly burned, and only a small part is used as building materials or for Most of the deep processing has not been rationally utilized and wasted in vain. [0003] Rhinoceros biruta, also known as the unicorned unicorn and the rhinoceros beetle, the main host plants are coconuts, oil palms, betel nuts, and various palm plants. Coconuts are especially severely damaged and often cause heavy losses. An important pest, the insect mainly harms the heart leave...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/40A01P19/00
Inventor 吕朝军钟宝珠王东明李洪覃伟权王智
Owner COCONUT RES INST OF CHINESE ACAD OF TROPICAL AGRI SCI
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