Method for increasing the predation performance of spider using agrimony extract

A technology of Agrimony and spider, applied in the directions of drug combination, pharmaceutical formula, plant raw materials, etc., to achieve the effect of improving the control effect, improving the level of biological control, and improving the level of biological control

Active Publication Date: 2011-01-26
JIANGSU ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Whether it is domestic or foreign, there is no research report on the use of natural active substances to actively improve the spider's predation function

Method used

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  • Method for increasing the predation performance of spider using agrimony extract
  • Method for increasing the predation performance of spider using agrimony extract
  • Method for increasing the predation performance of spider using agrimony extract

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1: Agrimony to the effect of the yellow and brown new orb spider

[0022] Before studying the effect of Agrimony ethanol extract on spider predation function, the activity of traditional Chinese medicine extract on brown planthopper was firstly determined by spray method. The results showed that Agrimony ethanol extract with a concentration of 0.0556g / ml had no lethal effect on the 3rd instar nymphs of Nilaparvata lugens.

[0023] The effect of the ethanol extract of Agrimony on the predation amount of the adult C. figure 1 ). The results showed that 0.0556g / ml ethanol extract of Agrimony significantly increased the predation amount of N. chrysalis on the 3rd instar N. lugens planthopper. Although within 6 days after treatment, there was no significant difference between the chemical treatment group and the control group; but at 9 days after treatment, the predation amount of N. flavus on BPH in the treatment group was significantly higher than that of the ...

Embodiment 2

[0025] Embodiment 2: Agrimony to the effect of saddle-shaped flower crab spider

[0026] The ethanol extract of Agrimony also significantly increased the predation amount of Nilaparvata lugens ( figure 2 ). Similarly, within 3 days after the treatment, the predation amount of the spiders after the treatment of the 0.0556g / ml Agrimony extract was not significantly increased; in the 9th day after the treatment, the cumulative predation amount of the two treatments was respectively up to 7.6, while the control group had only 2.8, The predation amount increased by 171%; 17 days after the treatment, the predation amount of the treatment group was still significantly higher than that of the control group. The average predation amount of each spider in the Agrimony treatment group was as high as 14, while the control group only had 6.2 spiders, and the predation amount was increased. up 126%.

[0027] figure 2 Effects of Ethanol Extract of Agrimony on the Predation Amount of Cra...

Embodiment 3

[0028] Embodiment 3: the effect of agrimony on rising cunning spiders

[0029] The ethanol extract of Agrimony also significantly increased the predation amount ( image 3 ). Similarly, within 3 days after treatment, the predation amount of spiders treated with 0.0556g / ml Agrimony ethanol extract did not increase significantly; Promptly reach 36.2, significantly higher than the control group (27.7), the amount of predation has increased by 31%; 9 days after processing, the cumulative amount of predation has increased by 50%; It reached 82.3 heads, which was 55% higher than that of the control group (55 heads).

[0030] image 3 Effects of Agrimony ethanol extract on the predation amount of the old nymphs of Emergentia cuneiformis.

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Abstract

The invention discloses a method for enhancing predation function of spiders by utilizing a hairyvein agrimonia herb and bud extract. The method is designed against the situation that the natural pest control effect is small and the complete control of pests can not be realized when in great occurrence amount of the pests. The preying amount of the spiders to rice major pest brown planthopper canbe significantly improved and the pest control ability of the spiders can be enhanced after the use of the traditional Chinese medicine hairyvein agrimonia herb and bud ethanol extract for treating neoscona doenitzi, saddle crab spider and dolomedes insurgens chamberlin. Compared with the traditional pest control which takes the pests as a target object, the technology takes the spiders which arethe predatory natural enemies of the pests as the target object and uses the hairyvein agrimonia herb and bud ethanol extract to improve the preying amount of the spiders, so as to improve the pest control effect. The technology not only has evident synergy, but also has high safety and can effectively improve the biological control level of the pests. The significant economic, social and ecological benefits can be generated after a large number of applications on the production.

Description

1. Technical field [0001] The invention belongs to the technical field of pest biological control, and in particular relates to a method for enhancing the predation function of spiders by using the extract of Agrimony agrimonium, a traditional Chinese medicine. 2. Technical background [0002] Spiders are the most important predatory natural enemies of pests in farmland ecosystems, and play an important role in controlling the outbreak of pests and maintaining ecological balance. For example, in rice fields, when the ratio of spiders and rice planthoppers is within a certain range, spiders can completely control the damage of rice planthoppers. However, when the number of planthoppers is extremely high, the overall control effect of spiders on planthoppers is weak. At this time, it is necessary to use chemical agents to control the damage of planthoppers. However, many of the above poisoning chemical pesticides also cause great harm to spiders while controlling the occurren...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61P43/00A61K36/73
Inventor 郭慧芳方继朝刘宝生钟万芳谢霖
Owner JIANGSU ACAD OF AGRI SCI
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