Fg. Peet et al., RATE OF SPREAD OF ARMILLARIA-OSTOYAE IN 2 DOUGLAS-FIR PLANTATIONS IN THE SOUTHERN INTERIOR OF BRITISH-COLUMBIA, Canadian journal of forest research, 26(1), 1996, pp. 148-151
The rate of spread of Armillaria ostoyae (Romagnesi) Herink was calcul
ated from observations over 20 years on plots in two Douglas-fir (Pseu
dotsuga menziesii (Mirb.) France) plantations in the southern interior
of British Columbia. Average rates of spread in active disease center
s ranged from 0.7 to 1.3 m/year.