Article Figures & Data
Figures
- Figure 1.
One-half cord, elm firewood piles were covered either with clear or black polyethylene tarps or left uncovered. All woodpiles were supported by snow fence posts.
- Figure 2.
Two possible methods of sealing woodpiles are shown here; placing sandbags or concrete blocks on the excess polyethylene.
- Figure 3.
Elm bark beetle “escape” holes were noticed in the black polyethylene tarps wherever the tarps were pulled taut.
- Figure 4.
Both living and dead elm bark beetles were found congregated at the top of the woodpiles.
Tables
- Table 1.
Comparison of wood moisture content before and after covering with different plastic tarps.
Treatment Date Duration Moisture Content (%) Initial Final Net Change A verage Change Black plastic, six mil Pile A 4/6/81-10/6/81 183 days 29.9 16.6 -13.3 -17.5 Pile B 4/6/81-10/6/81 183 days 37.2 15.6 -21.6 Pile C 7/7/81-10/6/81 91 days 24.8 22.6 - 2.2 0.6 Pile D 7/7/81-10/6/81 91 days 26.0 27.0 + 1.0 Clear plastic, six mil Pile E 4/6/81-10/6/81 183 days 33.7 8.0 -25.7 -17.7 Pile F 4/6/81-10/6/81 183 days 25.6 16.0 - 9.6 Pile G 7/29/81-10/6/81 69 days 26.3 17.6 - 8.7 - 5.5 Pile H 7/29/81-10/6/81 69 days 21.0 18.6 - 2.4 Clear plastic, four mil Pile I 7/7/81-10/6/81 91 days 35.0 16.3 -18.7 Clear plastic, four mil partial shade Pile J 7/7/81-10/6/81 91 days 27.6 33.3 + 5.7 Control* Pile K 4/6/81-10/6/81 183 days 28.3 17.3 -11.0 - 8.3 Pile L 4/6/81-10/6/81 183 days 23.3 17.6 - 5.7 Pile M 7/29/81-10/6/81 69 days 26.6 27.0 + 0.4 ↵* No plastic covering
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