Plant disease control agent and plant disease control method

A technology for control agents and diseases, applied in the directions of plant growth regulators, botanical equipment and methods, biocides, etc., can solve problems such as crop yield decline, pesticide environmental pollution, etc. The effect of the control effect

Active Publication Date: 2022-02-08
日本史迪士生物科学株式会社
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, crop yields are declining due to climate change caused by global warming
[0003] At present, crop diseases are mainly prevented and eliminated through the use of chemical pesticides, but due to the excessive use of chemical pesticides, drug-resistant pathogenic bacteria have emerged, and the pollution of pesticides themselves to the environment has also become a problem

Method used

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  • Plant disease control agent and plant disease control method
  • Plant disease control agent and plant disease control method
  • Plant disease control agent and plant disease control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0102] Hereinafter, the present invention will be described in more detail with reference to examples, but the present invention is not limited to the embodiments of these examples.

[0103] Control effect test of cabbage rhizoctonia blight caused by rhizoctonia

preparation example 1

[0105] (preparation of spores)

[0106] Using bran as the culture medium, inoculate the strain of T. chrysogenum Y-9401, and culture it in solid state at 30°C for 10 days. After the cultivation was completed, the culture was dried to obtain a powder (4 × 10 9 cfu / g).

[0107] (preparation of preparation)

[0108] Using the powder containing the spores of T. chrysanthemum Y-9401 obtained in Preparation Example 1 above, 10% by mass of the powder containing the spores, 10% by mass of SORPOL4315L (manufactured by Toho Chemical Industries) as a surfactant, 80% by mass of The ratio of soybean oil (manufactured by Nisshin OiliO) as an extender was mixed and stirred, and filtered through a 180 μm sieve. The filtrate thus obtained was concentrated by a centrifuge to obtain a flowable formulation (1×10 9 cfu / g).

Embodiment 1

[0110] (Test of control effect on cabbage blight caused by Rhizoctonia sp.)

[0111] (1) Inoculation of pathogenic bacteria

[0112] Rhizoctonia solani statically cultured in potato dextrose broth (PDB) medium was mixed with 1 / 50 weight of horticultural soil (Yuanqijun No. 1) containing fertilizer components to prepare soil contaminated by Rhizoctonia.

[0113] (2) Drug treatment

[0114]20 cabbages (variety: OKINA) were sown in plastic cups with a diameter of 6.5 cm filled with the soil contaminated with Rhizoctonia spp. Dilute the flow formulation prepared in the preparation of the above formulation to 1 x 10 7 cfu / ml, 4×10 6 cfu / ml, 2×10 6 cfu / ml, spray treatment (9.3ml) evenly on the aforementioned soil surface, as the medicament treatment area. In addition, the wettable powder (Rizolex wettable powder) with Tolclofos-methyl (Tolclofos-methyl) as the active ingredient was diluted 500 times with water, and the aforementioned soil surface was evenly sprayed (9.3ml) as a...

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Abstract

This invention addresses the problem of providing an agent for controlling disease induced in a plant by a bacterium selected from the genus Rhizoctonia, the genus Fusarium, the genus Pythium, the genus Microdochium, the genus Tilletia, the genus Ustilago, the genus Streptomyces, the genus Erwinia, and the genus Aphanomyces, the plant being selected from cruciferous plants, beans, corn, wheat, potatoes, and sugar beets. In the present invention, this disease can be controlled by treating seeds, seedlings, or soil of these plants using a fungus belonging to the genus Talaromyces.

Description

technical field [0001] The present invention relates to a control agent for controlling diseases infecting plants such as grains and vegetables eaten by humans and animals, and a disease control method using the control agent. Background technique [0002] With the rapid growth of the world's population, the demand for food continues to increase, requiring more efficient and high-yielding crop cultivation within a limited area of ​​cultivation. On the other hand, crop yields are declining due to climate change caused by global warming. [0003] At present, crop diseases are mainly prevented and eliminated through the use of chemical pesticides, but due to the excessive use of chemical pesticides, drug-resistant pathogenic bacteria have emerged, and the pollution of the pesticide itself to the environment has also become a problem. On the other hand, the method of preventing and controlling crop diseases through methods that do not rely on chemical pesticides and have low en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N63/30A01N25/04A01N25/30A01N25/12A01N25/14A01P1/00A01P3/00
CPCA01N63/20A01P1/00A01P3/00A01G13/00A01N63/30Y02A50/30A61L2/16A01N63/38A01N25/30A01N2300/00
Inventor 塚越裕树
Owner 日本史迪士生物科学株式会社
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