The nematode assay for this field detected lesion nematodes, Pratylenchus spp . This nematode, along with soil fungi and bacteria, is one of the primary causes of brown root rot of tobacco. Outbreaks of this disease tend to be sporadic.
Stress can trigger outbreaks even when populations of lesion nematodes are low.
Because stressful conditions are difficult to predict, forecasting outbreaks of brown root rot is difficult. Refer to the Action Code for each field on the nematode assay report.