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Plant source bactericide and application thereof

A technology of botanical fungicides and preservatives, applied in the direction of fungicides, plant growth regulators, applications, etc.

Active Publication Date: 2011-02-02
HUBEI TAIJI BIOCHEM DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main reasons are as follows: first, the active ingredients are single, the control effect is limited, and the bacteria are prone to drug resistance after long-term use; second, there are problems in the preparation processing technology, which makes the active ingredients of these natural plant-derived substances unstable, and the plants can absorb and utilize them. low rate

Method used

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  • Plant source bactericide and application thereof
  • Plant source bactericide and application thereof
  • Plant source bactericide and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Example 1 : 0.6% berberine · osthole water agent (2:1), its formula is as follows:

[0040] Berberine 0.4wt%;

[0041] Osthole 0.2wt %;

[0042]Azone 3wt%;

[0043] NP-100 10wt%;

[0044] BHT 0.005wt%;

[0045] Sodium Benzoate 0.5wt%;

[0046] Ethanol 33.4wt%;

[0047] The balance is water.

[0048] The preparation method is as follows: first weigh 20g of 20wt% berberine ethanol extract and 20g of 10wt% osthole ethanol extract, mix the two evenly (the extract contains 34g ethanol in total), then add ethanol 300g, surfactant (NP-100) 100g, azone 30g, BHT 0.05g, sodium benzoate 5g and 525g water, just stir well.

[0049] In 2009, the field efficacy test of this 0.6% berberine·osthole water agent (2:1) to control cucumber powdery mildew was carried out in Hunan and Anhui respectively, and 1% (mass percentage, the water agent that appeared hereinafter) The percentages in are all mass percentages) berberine water preparation and 1% osthole water preparation are the...

Embodiment 2

[0052] Example 2 : 8.4% berberine · osthole water agent (20:1), its formula is as follows:

[0053] Berberine 8wt%;

[0054] Osthole 0.4wt%;

[0055] Azone 3wt%;

[0056] NP-100 10wt%;

[0057] BHT 0.005wt%;

[0058] Sodium Benzoate 0.5wt%;

[0059] Ethanol 35.6wt%;

[0060] The balance is water.

[0061] The preparation method is as follows: First, weigh 400g of 20wt% berberine ethanol extract and 40g of 10wt% osthole ethanol extract, mix the two evenly, and then add 100g of surfactant (NP-100), 30g of azone, BHT 0.05g, sodium benzoate 5g and 425g water, just stir well.

[0062] In 2009, the field efficacy tests of the 8.4% berberine·osthole water agent (20:1) to prevent and treat pepper blight were carried out in Jiangsu and Hubei respectively, and 10% berberine water agent and 10% osthole Water agent was used as a control. The results are shown in Table 4. Although the total active ingredient content of the 8.4% berberine·osthole water preparation is slightly...

Embodiment 3

[0065] Example 3 : 8.4% berberine·osthole water agent (1:20), its formula is as follows:

[0066] Berberine 0.4wt%;

[0067] Osthole 8wt%;

[0068] Azone 3wt%;

[0069] NP-100 10wt%;

[0070] BHT 0.005wt%;

[0071] Sodium Benzoate 0.5wt%;

[0072] Ethanol 73.6wt%;

[0073] The balance is water.

[0074] The preparation method is as follows: first weigh 20g of 20wt% ethanol extract of berberine and 800g of 10wt% ethanol extract of osthole, mix the two evenly, then add 100g of surfactant (NP-100) and 30g of azone , BHT 0.05g, sodium benzoate 5g and water 45g, just stir well.

[0075] In 2009, the field efficacy tests of the 8.4% berberine·osthole water agent (1:20) to control cucumber powdery mildew were carried out in Jiangsu and Hubei respectively, and 10% berberine water agent and 10% osthole Plain water was used as a control. The result table is shown in Table 5, although the active ingredient total content of 8.4% berberine · osthole water preparation is lowe...

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Abstract

The invention discloses a plant source bactericide and application thereof. The plant source bactericide is prepared by mixing two active ingredients, a surfactant NP-100, a penetrating agent, an antioxidant, a preservative and a solvent, wherein the two active ingredients are berberine and osthole in a ratio of the berberine to the osthole of 1:20 to 20:1; the penetrating agent is azone; the antioxidant is 2,6-di-tert-butyl-p-cresol; and the preservative is sodium benzoate. The plant source bactericide is a broad spectrum bactericide and is mainly applied to preventing and controlling important diseases such as powdery mildew, plague, gray mold and the like. The plant source bactericide has synergistic effect after the two active ingredients are mixed, is insusceptible to resistance generation, has low toxicity for human and livestock, is safe to environment and has wide application to production of pollution-free and organic agriculture.

Description

technical field [0001] The invention relates to the technical field of biological pesticides, in particular to a botanical fungicide and its application. The fungicide is mainly used for the prevention and control of important plant diseases such as powdery mildew, blight and gray mold, and can be widely used in pollution-free and organic agricultural production. Background technique [0002] Pesticides are an indispensable means of production to ensure agricultural production and food security. However, since the 1960s, the long-term use of a large number of chemical pesticides has caused serious negative impacts on the environment and human and animal health. In recent years, although the state has attached great importance to the safety management of pesticides, and has successively banned and restricted dozens of highly toxic and high-residue pesticides, table pollution and poisoning incidents caused by excessive pesticide residues still occur from time to time. The dev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/16A01P3/00A01N25/22A01N43/90
Inventor 文怀霄唐宁蔚
Owner HUBEI TAIJI BIOCHEM DEV
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