Symptoms
- check_circleDry, spongy, or woody texture at the root centre
- check_circleRoots feel light for their size
- check_circleBland, bitter, or off flavour
- check_circleCracked or split skin on oversized roots
Causes
- arrow_rightSlow, stressed growth from heat or drought
- arrow_rightLeaving roots in the ground well past maturity
- arrow_rightInconsistent watering during root development
- arrow_rightOvercrowding forcing roots to compete for moisture
How to Diagnose
Cut a root in half — a pale, fibrous or hollow-feeling centre instead of firm, juicy flesh confirms pith. Affected roots often feel unusually light for their size.
Treatment
Pithy roots cannot be reversed once formed — harvest and use young, tender roots and discard badly affected ones. Compost severely pithy roots rather than storing them.
Prevention
Harvest root crops promptly at maturity rather than leaving them in the ground. Keep soil evenly moist with consistent watering, and thin seedlings so roots have room to develop without stress.
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