Decayed Wood Advisor

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Stem Decay and Root Disease Species List in -


Tables on this screen are not specific to any structural condition class. Click on the "I&D Species List" button to view a list of insects and pathogens, and ther impacts on wildlife habitat by structural condition class.

The "unharvested" plots include only those where there was no evidence of tree cutting of any kind and there was no evidence of roads. The "harvested" plots include the remainder of the plots.

Be cautious when using percentages of plots or trees per hectare for a category which are represented by low numbers of plots.




Table for Root Disease on this screen


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Table WLCH_WCO. fid_7. Number and percent of Forest Service and Bureau of Land Management unharvested and harvested inventory plots with at least one root disease present in Westside Lowland Conifer-Hardwood Forest, Washington Coast. Root diseases coded on these plots are annosus root and butt rot (Heterobasidion annosum), armillaria root disease (Armillaria ostoyae), laminated root rot (Phellinus weirii), black stain root disease (Leptographium wageneri), and unidentified species. Percentages in this table are based on weighted numbers of plots; thus, percentages derived by using the numbers of plots shown in this table will not be the same.

Root Disease(s)
Number of Unharvested Plots
Percent Unharvested Plots with Root Disease Present
Number of Harvested Plots
Percent of Harvested Plots with Root Disease Present
annosus root and butt rot
0
0.0
3
1.9
armillaria root disease
6
10.8
29
18.8
laminated root rot
3
4.7
12
8.0
black stain root disease
1
5.7
1
0.7
unidentified root disease
9
22.6
25
16.5
At least one including those unidentified
14
31.2
53
34.7
At least one of the four (HEAN, AROS, PHWE, LEWA) primary ones*
10
21.1
37
24.1

*HEAN = Heterobasidion annosum, AROS = Armillaria ostoyae, PHWE = Phellinus weirii, LEWA = Leptographium wageneri