Pythium by David Reid, NIDO (NGIV)

Pythium is a common problem in nurseries, so much so that some plant pathologists have called it the ‘common cold’ of plants. This fungus-like pathogen is fast growing and in the right conditions will reproduce rapidly, damaging roots and preventing nutrient and water uptake.

This infection will cause poorly developed, diseased root systems, stunted growth and chlorosis, making the plant unsuitable for sale.