Insecticidal composition of tea saponin and rotenone

An insecticidal composition, a technology of tea saponin, applied in the directions of insecticides, biocides, animal repellents, etc., can solve the problems of no technical report on technical solutions and high cost of rotenone

Inactive Publication Date: 2010-06-09
SOUTH CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the cost of rotenone alone is higher
[0006] At present, there is no technical report on the technical scheme for the combined use of tea saponin and rotenone

Method used

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  • Insecticidal composition of tea saponin and rotenone
  • Insecticidal composition of tea saponin and rotenone
  • Insecticidal composition of tea saponin and rotenone

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] Example 1 Preparation of 3% tea saponin·rotenone microemulsion and its indoor toxicity

[0075] The tea saponin is a crude extract of tea saponin, pure tea saponin or a preparation containing tea saponin; the tea saponin and rotenone are commercially available products or extracted by conventional methods.

[0076] The weight ratio of each component is: tea saponin: 1.5%, rotenone: 1.5%, methanol: 10%, cyclohexane: 9%, ethyl acetate: 8%, cyclohexanone: 25%, agricultural milk 500 : 4%, Nongru 700: 8%, AEO-7 (Chinese translation?): 10%, GP330: 0.5%, glycerol: 0.5%, the balance of water. Dissolving tea saponin and rotenone in methanol, cyclohexane and ethyl acetate according to the ratio, adding other components after mixing to prepare microemulsion.

[0077] Indoor toxicity and its compounding synergistic effect refer to conventional techniques, and the following method is used in this embodiment: fresh cabbage leaves collected from the net room without any pesticide app...

Embodiment 2

[0088]Example 2 Preparation of 5% tea saponin·rotenone EC and its indoor toxicity

[0089] The weight ratio of each component is: 4.5% of tea saponin; 0.5% of rotenone; 10% of surfactant Nongru 500, 10% of Nongru 700; 20% of organic solvent cyclohexane, 10% of ethyl acetate, DMF10%, dichloromethane 10%; co-solvent methanol 5%; stabilizer castor oil 5%; anti-photolysis agent epoxidized soybean oil 5%; penetrant laurocaprazine 10%. Put each component into the preparation kettle and mix thoroughly.

[0090] Refer to Example 1 for indoor toxicity determination. 5% tea saponin · rotenone emulsifiable concentrate prepared in the present embodiment is shown in Table 2 to the indoor toxicity test result of 2 instar diamondback moth larvae, the LC of formula 72h of the present invention 50 It is 10.65mg / L, and its co-toxicity coefficient reaches 1203, and the synergistic effect is obvious.

[0091] Table 2 indoor toxicity test result (LC of 72h) to 2 instar diamondback moth larvae ...

Embodiment 3

[0093] Example 3 Preparation of 5.5% tea saponin·rotenone EC and its indoor toxicity test

[0094] The weight ratio of each component is: 0.5% of tea saponin; 5.0% of rotenone; 10% of surfactant Nongru 500, 10% of Nongru 700; 20% of organic solvent cyclohexane, 10% of ethyl acetate, DMF 10%, dichloromethane 10%; co-solvent methanol 4.5%; stabilizer castor oil 5%; anti-photolysis agent epoxidized soybean oil 5%; penetrant lauroazepam 10%. Put each component into the preparation kettle and mix thoroughly.

[0095] Refer to Example 1 for indoor toxicity determination. The indoor toxicity test result of 5.5% tea saponin rotenone emulsifiable concentrate prepared in the present embodiment is shown in Table 2 to the 2nd instar larva of Spodoptera litura, the LC of formula 72h of the present invention 50 It is 1.16mg / L, and its co-toxicity coefficient reaches 2968, and the synergistic effect is obvious.

[0096] Table 2 indoor toxicity test results (LC50 of 72h) to 2 instar Spodop...

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Abstract

The invention discloses an insecticidal composition of tea saponin and rotenone, which comprises the following components by weight percentage: 0.10-50% of tea saponin, 0.01-30% of rotenone and 20-95% of auxiliary agents. The blended pesticide preparation can be used for preparing emulsion, wettable powder, micro-emulsion, suspending agent, suspending emulsion or emulsion in water. In the invention, the tea saponin and the rotenone are selected for formulation, such that the synergism is remarkable, the insecticidal activity is remarkably higher compared with a single agent, the labor and material investments in the pests preservation and control process are reduced, the production efficiency is improved, and the cost is reduced on the premise of guaranteeing the pesticide effect. In addition, the invention has various formulations, simple preparation method and very high promotional value.

Description

technical field [0001] The invention relates to an agricultural insecticide, in particular to an insecticidal composition of tea saponin and rotenone. Background technique [0002] Due to the long-term and large-scale irrational use of chemical pesticides, as well as the inherent shortcomings of some pesticides, the "3R" problem has been caused by pests. Therefore, looking for biologically active substances and researching and developing new biopesticides based on natural products have attracted much attention at home and abroad, among which botanical pesticides are the most eye-catching category. The development of botanical pesticides, the mixing of botanical pesticides and chemical pesticides, and the mixing of botanical pesticides and microbial pesticides are the frontiers and hotspots of pesticide research in the world. [0003] Tea saponin (Tea saponin) is a plant insecticide extracted from the seeds of Camellia plants such as tea seed cake and tea cake after tea seed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/90A01N43/16A01N25/30A01P7/04
Inventor 胡美英郝卫宁李辉程杏安
Owner SOUTH CHINA AGRI UNIV
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