Occurrence, incidence, and severity of Alternaria leaf spot of cotton (Gossypium hirsutum L.) in major cotton-growing districts of the Lake Zone, Tanzania

Background: Alternaria leaf spot (ALS), caused by fungi in the genus Alternaria (family Pleosporaceae), is a significant fungal disease that affects cotton production in the Lake Zone of Tanzania, the country's main cotton-producing region. The disease reduces photosynthetic capacity, boll retention, and fiber quality, leading to substantial yield losses in affected fields. Despite its increasing…

biorxiv.org ·1d ago

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