Excerpt from Effects of Herbicides on Some Important Brush Species in Southwestern Oregon A series of screening tests were established during 1955 to determine the effects of six commercial and experimental herbicides on brush in southwestern Oregon. The herbicides were tested as foliage sprays on 13 of the most abundant species and varieties of brush on forest lands in this area. Low volatile esters of 2, 4-d and 2, 4, 5-t proved to be the most effective herbicides. Results of the tests show that the 13 brush species and vari sties can be classified into three categories on the basis of degree of susceptibility to foliage applications of herbicides: (1) highly sus ceptible, ' (2) moderately susceptible, and (3) resistant. 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.