Description
Stem rot
కాండం బుడిదా తెగులు
Stem rot is a soil-borne disease that affects groundnut plants and is caused by the fungus Sclerotium rolfsii. It can cause significant economic losses and is a major threat to groundnut production.
-
-
Symptoms
Initial symptoms include wilted and yellowing lateral branches, main stems, or entire plants. White mycelia sheaths and white to dark-brown sclerotia can be found on diseased plant tissues and the soil surface.
-
-
Impact
Stem rot can reduce groundnut yields by 10–40%, but in severely affected fields, the reduction can reach 80%.
-
Environment
Stem rot thrives in warm and damp conditions. In dense soils, the fungus damages surface-level plants, whereas in lighter soils, it can harm pegs and pods deeply.
-
Management
There are several ways to manage stem rot, including:
- Integrated disease management: An effective approach to managing stem rot
- Burning crop residue: Burning straw and stubble after harvest can reduce sclerotia in the field
- Balanced fertilizer use: A balanced use of fertilizer or split application with high potash and lime can reduce stem rot infection
Screening for resistant genotypes: Phenotyping of available genetic resources in field conditions can help identify new tolerant or resistant genotypes
Management : Monapower and traicho power
Reviews
There are no reviews yet.