The causal organism of Inflorescence blight disease of marigold... | Agrigyan

Q.1

Floriculture and Landscaping- ICAR JRF/SRF 2024 (Q.51)

MCQ (Single Correct) +4 −1

The causal organism of Inflorescence blight disease of marigold is.

Rhizoctonia solani Alternaria zinnae Correct Leveillula taurica Fusarium oxysporum

Inflorescence Blight in Marigold (Tagetes spp.):
devastating floral disease caused by the fungal pathogen Alternaria zinniae (along with Alternaria tagetica).
Induces circular brown to black necrotic spots on ray florets, pedicels, and involucral bracts, which rapidly coalesce under humid conditions to cause complete blighting and rotting of flower heads.
Correct Option: Option 2 (Alternaria zinnae).

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