IPM Information

Pathology Information:

Species Name: Armillaria mellea (Vahl) P. Kumm.

Category:

Symptoms:
Rotting roots. White mat of interconnected string like structures on the base of the tree below the back. Drying up of entire tree once affected

Biology:
The fungi overwinters as mycelium or rhizomorphs on decaying roots. Rhizomorphs grow to infect healthy roots by root contact

Control methods:
Removing the affected tree and burning. Avoidance of affected area for several years, soil fumigation and digging a trench around the infected tree and its healthy nearby trees

Growth stage: Mature tree

Disease name: Armillaria root rot

Synonym: Armillaria mellea

Host name: Pinus radiata

Host common name: Radiate pine

Affected part: