Plural of clubroot; multiple instances or areas affected by the clubroot plant disease.
Plural form of clubroot, combining club + root + the regular English plural suffix -s. The plural form reflects multiple infected plants or multiple disease occurrences.
When clubroots spread through a field, farmers face an economic disaster that can last years—the disease creates resting spores in soil that can survive for up to 20 years, making it one of agriculture's most persistent problems.
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