This webinar will cover the identification, biology, and management of Heterobasidion root rot in the southeast U.S. Heterobasidion root disease is also known as annosum root disease or fomes root disease.
Heterobasidion root disease (HRD), caused by the fungus Heterobasidion irregulare, occurs in pines (Pinus spp.) throughout the eastern U.S. HRD weakens tree roots, and causes canopy thinning, dieback, and sometimes tree mortality. Trees infected with HRD are at a greater risk of windthrow due to weakened roots. Damage from HRD can be confused with insect damage, as initial HRD symptom can be difficult to diagnose. This webinar will cover HRD identification, biology, and management on pines in the southeastern U.S.