El. Schmidt et al., MILL TRIAL CONFIRMS CONTROL OF LUMBER GRAYSTAIN AND STICKER SHADOW AFTER FUMIGATION OF SOUTHERN HARDWOOD LOGS WITH METHYL-BROMIDE, Forest products journal, 48(6), 1998, pp. 50-52
Fumigation of hardwood logs effectively prevented non-microbial sapwoo
d discolorations (graystain) and sticker shadow in a mill trial of whi
te ash, sugar hackberry, and red oak in Mississippi. Lumber downgradin
g (due to non-microbial staining) was reduced from 40 to 0 percent for
white ash, 68 to 7 percent for sugar hackberry, and sapwood graystain
was eliminated from red oak (as compared to 100% presence in controls
).