<div class="description">
<dl><dd>20 p</dd>
<dd>Includes references</dd></dl><br>Subjects: forest trees; Armillaria mellea; Ceratocystis; Heterobasidion annosum; roots; hosts; fungal diseases of plants; Ceratocystis wageneri; disease surveys; Colorado</div>
<div class="fn value">
Johnson, D.W</div>
Internet Archive identifier