Hollies (especially Ilex crenata ), Boxwood, and Citrus. Crops: Tobacco, Cotton, Carrots, and Lettuce.
The Silent Killer: Understanding and Managing Black Root Rot black root rot fungus
Above-ground symptoms often mimic nutrient deficiencies, such as yellowing (chlorosis) and stunted growth, causing gardeners to over-fertilize, which only increases stress on the plant. The most distinct sign is a dramatic, firm, blackening of the roots—specifically caused by the buildup of dark chlamydospores. How the Fungus Spreads Black Root Rot - UC IPM Hollies (especially Ilex crenata ), Boxwood, and Citrus
Pansy, Viola, Calibrachoa (Million Bells), Vinca, Petunia, Poinsettia, and Phlox. Hollies (especially Ilex crenata )
Hollies (especially Ilex crenata ), Boxwood, and Citrus. Crops: Tobacco, Cotton, Carrots, and Lettuce.
The Silent Killer: Understanding and Managing Black Root Rot
Above-ground symptoms often mimic nutrient deficiencies, such as yellowing (chlorosis) and stunted growth, causing gardeners to over-fertilize, which only increases stress on the plant. The most distinct sign is a dramatic, firm, blackening of the roots—specifically caused by the buildup of dark chlamydospores. How the Fungus Spreads Black Root Rot - UC IPM
Pansy, Viola, Calibrachoa (Million Bells), Vinca, Petunia, Poinsettia, and Phlox.