Black Root Rot
Rhizoctonia sp. Pythium sp. and Fusarium sp.
- After first year, plants in a field showing reduced vigor, often in low or wet spots or in areas where the soil is compacted
- Roots appear ‘rat tailed’ and do not have fine fibrous root hairs
- Irregular black patches occur along the length of the fleshy white roots
- Interior of infected older woody roots turns black
- Common in areas where strawberries have been grown for many years
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