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Method for controlling clubroot

A technology of clubroot and Cyazofim, which is applied in the field of clubroot prevention and control, can solve problems such as methods for treating fungicidal compounds of Brassica vegetables that have not been clearly recorded

Inactive Publication Date: 2013-11-27
ISHIHARA SANGYO KAISHA LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this method, it is mentioned that chemical treatment is preferably carried out about 20 days before and after sowing or planting of Brassica vegetables, but there is no clear description of the method of treating Brassica vegetables with fungicidal compounds after planting

Method used

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  • Method for controlling clubroot
  • Method for controlling clubroot
  • Method for controlling clubroot

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] The present invention is described below with reference to Examples and Comparative Examples, but the present invention is not limited to these Examples. Embodiment 1 (cabbage clubroot control test):

[0071] (1) Preparation of control agent

[0072] A solution for spraying at 50 ppm was prepared by diluting 9.4 w / w % of Cyazofamid (Ranman [trade name] suspension, manufactured by Ishihara Sangyo Kaisha Ltd.) with water.

[0073] (2) Disease control test of cabbage

[0074] Plasmodium spore suspension (fungal density: 1 × 10 5 Fungi / g dry soil) were inoculated into sterilized soil which had been adjusted to pH 6.2 using Sandoseto, and after introducing the resulting test soil into a 1 / 5000a pot, by establishing 5 plantings, Make each plant in each test area have 0.02m 2 The size of the cabbage (kind: Okina (Okina)) seedlings grown in the seedling plug tray (128 holes / seedling box) will be planted. Immediately after planting, 3 days, 7 days, 10 days and 14 days after...

Embodiment 2

[0085] Embodiment 2 (cabbage clubroot control test)

[0086] Utilize the watering can to spray the Plasmodium spore suspension to the whole farmland to have 1×10 4 Fungal density of fungi / g dry soil. In this farmland, by setting up two nurseries, each test area contains 10 plants (plant spacing: 30cm, row spacing: 30cm, two rows are planted), which will grow in seedling plugs (128 holes / seeding box) Cabbage (variety: Okner) seedlings were planted. Immediately after planting, 4 days after planting, 7 days and 11 days, pour the soil with 250ml / plant of the spraying medicinal liquid prepared in the same way as in Example 1 (1). Seventy-seven days after planting, the number of each index of clubroot arising from the root was examined. For comparison, the same test was carried out in a control plot which had not been treated with soil drenching sprayed with the chemical solution.

Embodiment 3

[0093] Embodiment 3 (cabbage clubroot control test)

[0094] Plasmodium spore suspension (fungus density: 1×10 5 Fungus / g dry soil) was inoculated into the sterilized soil which had adjusted the pH to 6.2 using Sandusto, and after introducing the obtained test soil into a 1 / 5000a pot, by establishing 5 nurseries, each test area was A plant has 0.02m 2 The size of the cabbage (kind: Okna) seedlings grown in the seedling plug tray (128 holes / seedling box) will be planted. Immediately after planting, 4 days, 7 days and 14 days after planting, the spraying liquid prepared by the same method as in Example 1 (1) was used to perfuse the soil with the ratio of 250ml / plant. 57 days after planting, the number of each index of clubroot arising from the roots was studied. For comparison, the same test was carried out in a control plot which had not been treated with soil drenching sprayed with the chemical solution.

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Abstract

In order to control the clubroot of brassica vegetables which is settled-planted in a farm field, it is necessary to previously treat the seedling with a chemical before settled planting or treat the soil with a chemical, but the clubroot is sometimes not controlled depending on the weather or soil conditions. In addition, the treatment with a fungicidal compound at a high concentration causes a problem of phytotoxicity or crop persistence. An object of the present invention is to solve these problems and provide a method for easily and simply controlling clubroot without causing a problem of phytotoxicity or crop persistence. The present invention provides a method for controlling clubroot, comprising applying cyazofamid to brassica vegetables after seeding or settled planting in a farm field.

Description

Technical field [0001] The present invention relates to a method for preventing and treating clubroot. The method includes applying cyanazole to Brassica vegetables after sowing or planting in farmland. Background technique [0002] Clubroot is an easily contagious soil-borne disease caused by the fungus Plasmodiophora brassicae. Targets for preventing and treating clubroot include Brassica vegetables. Conventionally, clubroot of Brassica vegetables has been controlled by soil mixing treatment with a clubroot fungicide on farmland before planting Brassica vegetable seedlings. However, in seasons with heavy rainfall, such as the rainy season, even if farmland is treated with fungicides for clubroot control by soil mixing, uneven mixing can sometimes result in clubroot failure to be controlled, and there is an impact of this treatment on the climate. and sensitive issues with soil conditions. [0003] On the other hand, methods for controlling clubroot by treating Brassica ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/50A01N41/06A01N37/34A01P3/00
CPCA01N43/50A01N25/00A01N37/34A01N41/06
Inventor 林博之大野将也
Owner ISHIHARA SANGYO KAISHA LTD