Eradicating European Pine Shoot Moth On Ornamental Pines With Methyl Bromide

Excerpt from Eradicating European Pine Shoot Moth on Ornamental Pines With Methyl Bromide For treatment of nursery trees moved to permanent control chambers, it is recommended that fumigation be carried on during the winter months, using a gas concentration of 4 pounds per 1, 000 cubic feet for 2 hours at 62° F or 4 to 5 pounds for 3 hours at For treatment of trees in place, a method has been devised which adjusts treatment time according to fluctuations in chamber temperatures. The vapor pressure of the gas is used as an index to the effect of an average chamber temperature obtained for a 30 minute period. Treatment is continued until the sum of these index numbers reaches the desired total effect of time and temperature. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.