decay of aspen and balsam poplar in alberta - Canadian Forest ...
decay of aspen and balsam poplar in alberta - Canadian Forest ...
decay of aspen and balsam poplar in alberta - Canadian Forest ...
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Fig';"e 13. Brown butt rot <strong>of</strong> <strong>balsam</strong> <strong>poplar</strong>, probably caused by Armillaria mellea. Figure 14. Butt rot<br />
(brown rot) <strong>of</strong> <strong>aspen</strong> caused by Armillaria mellea. Figure 15. Black gall on <strong>aspen</strong>.