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Page 30 <br />Based on the host tree species for each pest and the current range of the pest (Forest Health Technology Enterprise <br />Team 2014), it is possible to determine what the risk is that each tree species in the urban forest could be attacked by <br />an insect or disease. <br />Sp <br />p <br />. <br /> <br />R <br />i <br />s <br />k <br />Ri <br />s <br />k <br />We <br />i <br />g <br />h <br />t <br />Sp <br />e <br />c <br />i <br />e <br />s <br />Na <br />m <br />e <br />AL <br />A <br />L <br />B <br />AR <br />C <br />A <br />A <br />R <br />D <br />BB <br />D <br />BC <br />BL <br />D <br />BM <br />BO <br />B <br />BS <br />R <br />D <br />BW <br />A <br />CB DA <br />DB <br />S <br />R <br />DE <br />D <br />DF <br />B <br />EA <br />B <br />FE FR <br />FT <br />C <br />GS <br />O <br />B <br />HR <br />D <br />HS <br />HW <br />A <br />JP <br />B <br />JP <br />B <br />W <br />LA <br />T <br />LW <br />D <br />MO <br />B <br />MP <br />B <br />NS <br />E <br />OW <br />PB <br />S <br />R <br />21 Norway spruce <br />12 Coastal live oak <br />12 Eastern white pine <br />11 European beech <br />11 Willow spp <br />10 Northern red oak <br />10 Plum spp <br />10 Oak spp <br />9 Bigleaf maple <br />9 California black oak <br />9 Pin oak <br />9 Red willow <br />9 Blue spruce <br />8 Camphor tree <br />8 Holly oak <br />8 Elm spp <br />8 California buckeye <br />8 Black walnut <br />8 California laurel <br />8 European white birch <br />7 American elm <br />7 Birch spp <br />7 Black willow <br />7 Scouler willow <br />6 Ash spp <br />6 River birch <br />6 Boxelder <br />6 White alder <br />6 Corkscrew willow <br />6 Cottonwood spp <br />5 California white oak <br />5 Shamel ash <br />5 Interior live oak <br />5 Maple spp <br />5 Scarlet oak <br />5 Live oak <br />5 Japanese black pine <br />5 Freeman maple <br />5 Persian silk tree <br />5 Trident maple <br />5 Japanese maple