Remolacha de mesa
How to recognize and treat brown crown and root rot in table beets
Brown Crown And Root Rot
Fungus
Type:
Risk to the plant:
HIGH
Rhizoctonia Solani
Pathogen:
Micosis/Hongos
WHO CAUSES IT?
Rhizoctonia solani is a soil pathogenic fungus that affects a wide variety of plants, including beet. This fungus is capable of producing sclerotia, which are dark brown to black tough structures that can survive in soil for long periods, even in the absence of a suitable host. When environmental conditions are favorable, especially in the presence of high humidity and moderate to warm temperatures, sclerotia germinate and produce hyphae that invade the roots and crowns of susceptible plants. The hyphae grow through plant tissue, causing necrosis and decomposition of infected tissues. Rhizoctonia solani can also produce spores, although its main method of survival and propagation is through sclerotia.
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SYMPTOMS
Brown crown and root rot, caused by Rhizoctonia solani, is a devastating disease of beet. This fungus infects the underground parts of the plant, causing a series of symptoms that affect both the development and yield of the crop. The disease initially manifests itself as brown Taches at the base of the plant, which progressively expand. The roots and crown are affected, showing dark brown decay and tissue collapse. Affected plants usually show stunted growth and may die if the infection is severe. The roots become soft and give off an unpleasant odor as the rot progresses.
- Brown Taches at the base of the plant
- Dark brown decay on roots and crown
- Stunted growth
- Death of severely infected plants
- Soft roots with an unpleasant odor
DEVELOPMENT CONDITIONS
Temperature:
18°C - 28°C
Humidity:
60% - 80%
HOW IS IT SPREAD?
Sclerotia in soil, contaminated tools, irrigation water, infected planting material, crop residues
HOW TO ELIMINATE IT?
Home treatments
There are no home treatments
Natural allies
Chemical treatments
There are no treatments for this disease. Treatments are directed at the insect vectors that transmit it. See insect treatments.
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