Pink root—Phoma terrestris
Roots of plants infected with pink root first turn light pink, then darken through red and purple, shrivel,
turn black, and die. New roots also may become infected and plants may become stunted. Infection is confined
to the roots, and death seldom results.
Life cycle
SolutionsPrevention and control of pink root include use of resistant varieties, good soil fertility, and control
of insects and other diseases to maintain healthy plants. Rotate out of garlic or onions to reduce the
severity of the disease. Soil
solarization may help to reduce disease levels in the soil before planting.
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Healthy
bulb (left) and infected bulbs
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