Table 1a.
Effect of tree diameter on injectability of mature American elm trees in 1981.
Size class (dbh cm)
Number of trees
Chemical uptake
Time (hr)
Rate l/hr/cm)
<50
15
3.4 (1-8.)
*
0.35
50-62
13
3.5 (2-9)
0.30
63-75
12
2.4 (1.5-4)
0.39
>75
11
3.3 (1.5-9)
0.45
Total Mean
51
3.2
0.37
↵
* Mean (range)