Tob. Sci., 1971, 15-04, p. 11, ISSN.0082-4623
Preliminary investigations of the ability of phosphine gas to penetrate polyethylene tobacco case liners
Imperial Tobacco Group (American Leaf Organization), Wilson, North Carolina USA
Previous studies indicated that a concentration of 30 ppm of phosphine for 96 hours was effective in the control of larvae and adults of the cigarette beetle. It is apparent from these experiments that unbroken .004” polyethylene slows the movement...