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  • All fields: Olson, Brian R., 1969-
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    • Common diseases of conifers in Oklahoma

    • Foliage diseases of conifers can be of great importance to the survival and general vigor of these trees in Oklahoma. The green needles of conifers often represent several years of growth and the tree depends upon all of these needles for its...
    • 2003-08
    • Hypoxylon canker of oaks

    • One of the greatest losses that a homeowner can experience is the loss of a tree. Not only is a tree an aesthetic part of the yard but it also provides shade for the homeowner as well as shelter for birds and other animals. Trees in the landscape...
    • 2004-05

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