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Plant bactericide, and applications thereof in preventing and controlling crop diseases

A technology of plant fungicides and fungicides, applied in the field of pesticides, to achieve the effect of easy degradation and safety for humans and animals

Active Publication Date: 2016-01-13
吴文君 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] So far, there is no report on the inhibition of plant pathogenic bacteria by the extract of the root of the variegated bamboo and its development as an agricultural fungicide to prevent and control crop diseases

Method used

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  • Plant bactericide, and applications thereof in preventing and controlling crop diseases
  • Plant bactericide, and applications thereof in preventing and controlling crop diseases
  • Plant bactericide, and applications thereof in preventing and controlling crop diseases

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1 Speckled bamboo root seven soluble powder preparation

[0025] Weigh 500g of Bambusa variegata root seven extract, 420g of potassium sulfate (filler), 50g of sodium lignosulfonate (dispersant) and 30g of sodium lauryl sulfate (wet spreader), mix them and add to a small ball mill to pulverize for 2 hours. Obtain 50% speckled bamboo root seven soluble powder.

Embodiment 2

[0026] Embodiment two control cucumber downy mildew pot experiment

[0027] Two cucumber seedlings (variety Xintaimici) at the true leaf stage were used for testing. The test agent is 500-fold, 1000-fold and 2000-fold dilution of 50% Bambusa japonica soluble powder, the contrast agent is 2000-fold dilution of 50% dimethomorph water-dispersible granule, and clear water is used as a control. 15 pots (30 plants) of cucumber seedlings were treated for each treatment, and repeated 3 times. Spray and inoculate cucumber downy mildew spore liquid 24 hours after spraying. After 4 days of inoculation with clear water, the control group was obviously ill, and the disease index was investigated in different grades, and the control effect was calculated. The results are shown in Table 1.

[0028] Table 150% Scattered bamboo root seven soluble powder control cucumber downy mildew pot experiment results

[0029]

[0030] The results in Table 1 show that the 1000-fold dilution of 50% Ba...

Embodiment 3

[0031] Example 3 Pot experiment of preventing and controlling potato late blight

[0032] Potato seedlings with 5 compound leaves (Qinshu No. 7) were used for the test. The test agent was 500-fold and 1000-fold dilutions of 50% Bambusa variegata soluble powder, and the 1000-fold dilutions of 3000 (46.2% copper hydroxide water dispersible granules) were used as control agents and clear water controls. 10 pots (10 plants) of potato seedlings were treated for each treatment, and repeated 3 times. The protective effect is to inoculate the spore liquid of P. infestans 24 hours after application, and the therapeutic effect is to apply the drug 24 hours after inoculation of the spore liquid. After 4 days of inoculation, when the clear water control was obviously onset, the lesion index was investigated and the control effect was calculated. The results are shown in Table 2.

[0033] Table 250% Potted Experimental Results of Potato Late Blight Prevention and Treatment of Speckled Ba...

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Abstract

The invention provides a plant bactericide taking a Disporopsis aspera extract as an active substance. A preparation method of the plant bactericide comprises following steps: active substances of the whole plant of Disporopsis aspera are extracted with a polar solvent so as to obtain the Disporopsis aspera extract; the Disporopsis aspera extract, a dispersing agent, wetting dispersing agent, and a filling material are mixed at a certain ratio and are processed into a soluble powder. Disporopsis aspera plant bactericide can be used for green prevention and control of crop diseases.

Description

technical field [0001] The invention relates to a plant fungicide used for preventing and treating crop diseases, and belongs to the technical field of pesticides. technical background [0002] According to the statistics of the Food and Agriculture Organization of the United Nations, more than 10% of the world's grain and cotton production is lost due to crop diseases all the year round. In my country, especially in the production of vegetables and fruits, plant diseases are perennially harmful, and long-term dependence on chemical synthetic fungicides for prevention and control, and the dosage of pesticides is increasing. The bigger it is, the higher the frequency of pesticide application. As a result, the drug resistance of pathogenic bacteria doubles, the control effect decreases, and the pesticide residues exceed the standard, which seriously restricts the high-quality, high-quality and stable yield of vegetables and fruits in our country. One of the strategies to solve ...

Claims

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Application Information

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IPC IPC(8): A01N65/42A01N25/14A01P3/00
Inventor 吴文君张继文刘伟
Owner 吴文君
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