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Application of juglone to termite control

A technology of juglone and termites, which is applied in the field of application of juglone in termite control, can solve the problems of long residual effect period being eliminated, unsuitable for termite control, high toxicity of aquatic organisms, etc., achieving remarkable control effect, simple structure, and promoting The effect of growth

Inactive Publication Date: 2013-02-06
SOUTH CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] With the strengthening of people's awareness of environmental protection and the continuous improvement of the requirements for the quality of living and production environments, the requirements for termite control chemicals have also changed: due to the high toxicity of inorganic termite control agents, their proportion will drop to a very low level, and most species will be eliminated. Eliminated; organochlorine pesticides were eliminated due to their long residual period; organophosphorus is an older and more dangerous type of pesticide, which is highly toxic to humans and animals and is not suitable for termite control; pyrethroids are relatively low in toxicity and environmentally friendly. Good compatibility, but short duration, highly toxic to aquatic organisms

Method used

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  • Application of juglone to termite control
  • Application of juglone to termite control
  • Application of juglone to termite control

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The extracts of different plants (extracted with methanol by cold soaking method) were dissolved in methanol to prepare a 1000 μg / mL solution; 1 mL of the drug solution was evenly dropped on the filter paper (diameter = 9 cm) in the petri dish. After the filter paper dries naturally, add 1 mL of distilled water to evenly moisten it, and then put 30 healthy and mature worker ants of Coptotermes formosanus into each dish. All tested petri dishes were cultured in a dark environment with a temperature of 27±1°C and RH=70%±5%. Regularly check and record the death of the tested termites, and replenish water in time according to the wetness of the filter paper. A blank control was set, each treatment was repeated 3 times, and the mortality rate and adjusted mortality rate were calculated according to the following formula.

[0032]

[0033]

[0034] The poisonous effect of different plant extracts on termites was determined by the above method, and the results are shown ...

Embodiment 2

[0041] Determination of poisonous activity: Prepare juglone into a methanol solution of the required concentration, and then use a pipette gun to evenly drop 1mL of the drug solution onto the filter paper (diameter=9cm) in the petri dish. After the filter paper was dried naturally, it was evenly moistened with 1 mL of distilled water. Then put 30 healthy, mature worker ants into each dish. Distilled water was used for control treatments. Each treatment was repeated 3 times, and all tested petri dishes were placed in a dark environment with a temperature of 27 ± 1°C and RH = 70% ± 5%, and the death of the tested termites was checked and recorded at regular intervals. Replenish water in time. Mortality and adjusted mortality were calculated according to the following formula.

[0042]

[0043]

[0044] After the above treatment, the measured results are shown in Table 2.

[0045] Table 2 Toxicity determination of juglone to Coptotermes formosanus

[0046]

[0047] ...

Embodiment 3

[0049] Prepare juglone into a methanol solution of the required concentration, and then use a pipette gun to evenly drop 1mL of the drug solution onto the filter paper (diameter = 9cm) in the petri dish. After the filter paper was dried naturally, it was evenly moistened with 1 mL of distilled water. Then put 30 healthy, mature worker ants into each dish. Distilled water was used for control treatments. Each treatment was repeated 3 times, and all tested petri dishes were placed in a dark environment with a temperature of 27 ± 1°C and RH = 70% ± 5%, and the death of the tested termites was checked and recorded at regular intervals. Replenish water in time. The death and symptoms of termites treated with different concentrations of juglone are shown in Table 3.

[0050] Table 3 Toxicity and symptoms of Coptotermes formosanus treated with different concentrations of juglone

[0051]

[0052] It can be seen from Table 3 that after high concentration (25, 50, 100 μg / mL) jug...

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Abstract

The invention discloses application of juglone to termite control, i.e., a juglone-containing agent is sprayed to places where termites haunt about to fulfill the aim of controlling the termites. The juglone has the advantages of wide source, readily available raw material, simple structure, easiness in synthesis and obvious control effect on the termites. The juglone has a synergistic effect after being mixed with other termite control agents for use; and the growth of a target plant can also be promoted by a juglone-containing plant extract. The juglone is originated from plants, has a smooth degradation approach in nature, and has the advantages of low toxicity to human and animals, no environmental pollution, no residue, no influence on water resource, capability of meeting the environmental protection requirement of the termite control agent and broad application prospect compared with other termite control agents.

Description

technical field [0001] The invention belongs to the field of termite control, and in particular relates to the application of juglone in termite control. Background technique [0002] Juglone is a natural product that belongs to naphthoquinones, and its structure is as follows: [0003] [0004] The structural information of juglone is as follows: [0005] 1 H-NMR (CDCl 3 ,600MHz)δ:6.95(2H,s,H-2and H-3),7.28(1H,d,J=6Hz,H-6),7.62(2H,m,H-7and H-8),11.89( 1H,s,OH). [0006] 13 C-NMR (CDCl 3 ,150MHz)δ:184.4(C-1),139.7(C-2),138.8(C-3),190.4(C-4),131.9(C-4a),161.6(C-5),119.3(C -6), 136.7(C-7), 124.6(C-8), 115.1(C-8a). [0007] Juglone exists in the root bark, bark, green fruit peel (Qinglongyi) and leaves of Jugland mandshurica Maxim and walnut (Juglans regia L). Chemical name: 5-hydroxy-1,4-naphthoquinone, or 5-hydroxy-1,4-naphthalenedione; English name: Juglone. Insoluble in cold water, slightly soluble in hot water, soluble in ethanol and ether, easily soluble in o...

Claims

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Application Information

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IPC IPC(8): A01N35/06A01P7/04
Inventor 周利娟黄继光徐汉虹
Owner SOUTH CHINA AGRI UNIV
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