Natural plant pest killing and sterilizing agent and its preparing method and use

A technology of natural plants and fungicides, applied in the field of plant pesticides, can solve the problems of pest resistance, residual toxic environment, high toxicity, etc., and achieve the effects of wide distribution, mature technology and large storage.

Inactive Publication Date: 2006-03-22
广东省中药研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the extensive use of chemical pesticides, various disadvantages have been brought to human beings, such as the generation of pes

Method used

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  • Natural plant pest killing and sterilizing agent and its preparing method and use

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0017] Example 1

[0018] Antifeedant and repellent effects of patchouli essential oil on sandalwood butterfly and lychee leaf roller

[0019] 1.1 Essential oil to be tested: Patchouli essential oil is self-provided by this research institute, and contains about 50g crude drug per ml.

[0020] 1.2 Test insects

[0021] Delias aglaia L.: Pick up newly hatched sandalwood larvae from the specimen garden of our institute, put them in a large plastic box, and feed them with young sandalwood leaves. When the larvae reach 5th instars test.

[0022] Homona coffearia Nietner (Homona coffearia Nietner): The newly hatched larvae of Homona coffearia Nietner were collected from the Zengcheng Orchard, placed in a large plastic box, and fed with young lychee leaves, and provided when the larvae reached 5th instar test.

[0023] 1.3 Determination of antifeedant effect

[0024] Pharmaceutical preparation: Using acetone as the solvent, the patchouli essential oil was diluted to 2.5mg / L, 5mg / L, 10mg...

Example Embodiment

[0042] Example 2

[0043] Antifeedant effect of patchouli essential oil on Prodenia litura

[0044] 1.1 Essential oil to be tested: Patchouli essential oil is self-provided by this research institute, and contains about 50g crude drug per ml.

[0045] 1.2 Test insects

[0046] Spodoptera litura Fab.: The eggs of Spodoptera litura Fab. are collected from the field and placed in a moisturizing petri dish. After the eggs hatch into larvae, they are transferred to a large glass aquarium and fed with cassava leaves. When the larvae grow to Pick out neat and consistent larvae for testing at 3rd instar.

[0047] 1.3 Test method

[0048] Pharmaceutical preparation: Using acetone as the solvent, the patchouli essential oil was diluted to 2.5mg / L, 5mg / L, 10mg / L, 20mg / L, 40mg / L and five gradient concentrations.

[0049] The selective feeding antifeedant activity determination and the non-selective feeding antifeedant activity determination are the same as in Example 1.

[0050] 1.4 Non-selecti...

Example Embodiment

[0057] Example 3

[0058] Insecticidal effect of patchouli ketone and patchouli essential oil

[0059] 1.1 Test medicine: Patchouli essential oil is self-extracted by this research institute, and each mL contains about 50g crude drug; patchouli ketone is separated and prepared from this essential oil by our laboratory, with a yield of 0.25% and a purity of over 98.5%. Using acetone as the solvent, the patchouli essential oil was diluted to 2.5mg / L, 5mg / L, 10mg / L, 20mg / L, and 40mg / L. The patchouli ketone was diluted to 1mg / L. Five gradient concentrations of L, 2mg / L, 4mg / L, 8mg / L, and 10mg / L.

[0060] 1.2 Test insects

[0061] Pieris rapae (Preris rapae L.): The pupa and advanced larvae of Pieris rapae were collected from the teaching and practice area of ​​our specimen garden. The larvae were collected in a large petri dish after being pupated, and moved into a 50cm long, 60cm wide and 80cm high larva when they emerged In the insect cage, put potted medusa in the cage, and immerse...

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Abstract

The present invention belongs to the field of botanical pesticide. The botanical pest killing germicide contains patchoulenone in 0.1-10 mg/L or patchoulenic oil in 0.3-40 mg/L as the active component. The preparation process includes dissolving patchoulenone in water to obtain water solution; or adding patchoulenic oil into water and adding proper amount of surfactant via stirring to obtain emulsion. The present invention is used in preventing and controlling diseases and pests of crop, and has the advantages of rich resource, low cost, high activity on harmful organism, high safety on non-target organism, low residue and easy degradation.

Description

technical field [0001] The invention relates to a plant pesticide, in particular to a natural plant insecticide and fungicide used for the control of crop diseases and insect pests. The invention also relates to a preparation method and agricultural application of the insecticide and fungicide. Background technique [0002] Pesticides are essential and important materials to ensure good agricultural harvests, improve human food supply, and improve human living standards. For this reason, many countries in the world have devoted considerable manpower and material resources to the development of new pesticides, especially some world-wide large chemical companies in developed countries, even more at all costs to research and develop new pesticides. Today, the development of a new chemical pesticide often costs 70 to 80 million US dollars, and it takes about 10 years to screen tens of thousands of compounds before a new pesticide with commercial value can be obtained. However, ...

Claims

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Application Information

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IPC IPC(8): A01N65/00A01N65/22
Inventor 严振曾庆钱莫小路王玉生汪小根
Owner 广东省中药研究所
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