Article Figures & Data
Tables
Air temperature (C) 18 19-21 22-24 25-27 28-30 31 Mean time per tree 1981 Time (hr) 4.4 3.0 3.0 3.1 2.1 1.4 No. of trees 3 10 14 8 6 7 1982 Time (hr) 3.0 3.1 2.8 2.5 1.9 2.1 No. of trees 3 11 22 32 9 6 Two-year average Time (hr) 3.7 3.1 2.9 2.8 2.0 1.8 Sky cover Clear 0 Partly .1-.2 cloudy .4-.7 Cloudy .9-1.0 Mean time per tree 1981 Time (hr) 2.5 3.8 3.5 3.8 No. of trees 14 10 4 14 1982 Time (hr) 2.3 2.5 2.3 3.6 No. of trees 9 12 45 17 Two-year average Time (hr) 2.4 3.1 2.9 3.7 Time per tree Wetwood None/trace Slight Moderate Severe 1981 Time (hr) 3.3 2.9 2.7 3.3 No. of trees 21 13 11 6 1982 Time (hr) 2.7 2.5 2.2 2.8 No. of trees 57 12 4 1 - Table 6.
Injection times of mature elm trees which later healed injection holes rapidly or slowly.
Degree of healing after 22 months 1981 High (>75%) Low < 70%) All trees Number 27 19 Time (hr) 2.4 3.7 Trees 51 cm Number 16 18 Time (hr) 1.8 3.5