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 o

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

Example Embodiment

[0024] Example 1 Preparation of the soluble powder of P. sphaerocephala

[0025] Weigh 500g of extract of bamboo root, 420g of potassium sulfate (filler), 50g of sodium lignosulfonate (dispersant) and 30g of sodium lauryl sulfate (wet spreading agent), mix them and add them to a small ball mill to crush for 2h. A 50% soluble powder of P. sphaerocephala is obtained.

Example Embodiment

[0026] Example 2 Potted Experiment on Controlling Cucumber Downy Mildew

[0027] Two cucumber seedlings at the true leaf stage (the variety is Xintaimi thorn) were tested. The test agent was 500 times, 1000 times and 2000 times dilutions of 50% Phyllostachys edulis soluble powder, and the control agent was 2000 times dilutions of 50% dimethomorph water dispersible granules, and a clear water control was set. Each treatment with 15 pots (30 plants) of cucumber seedlings was repeated 3 times. Spray inoculation of cucumber downy mildew spore solution 24 hours after application. After 4 days of inoculation with the clear water control group, the disease index was graded and the control effect was calculated. The results are shown in Table 1.

[0028] Table 150% soluble powder of Diospyros variabilis soluble powder to control cucumber downy mildew potted experiment results

[0029]

[0030] The results in Table 1 show that, for the prevention and control of cucumber downy mildew, the 5...

Example Embodiment

[0031] Example 3 Potted experiment for preventing and controlling potato late blight

[0032] Five potato seedlings with compound leaves (Qinshu No. 7) were tested. The test medicament is 500 times and 1000 times dilutions of 50% Phyllostachys edulis soluble powder, which can kill 3000 times (46.2% copper hydroxide water dispersible granules) 1000 times dilution as the control medicament and clean water control. For each treatment, 10 pots (10 plants) of potato seedlings were repeated 3 times. The protective effect is that the spore solution of Phytophthora infestans is inoculated 24h after the application, and the treatment effect is that the spore solution is applied 24h after the inoculation. After 4 days of inoculation, the clear water control showed obvious disease. The disease index was investigated and the control effect was calculated. The results are shown in Table 2.

[0033] Table 250% soluble powder of Zhugen Qi soluble powder to prevent and control potato late blight...

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PUM

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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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