Excerpt from Aiding Blister Rust Control by Silvicultural Measures in the Western White Pine Type Ribes Zacustre is second in abundance and distribution. The 194 Zacustre bushes eradicated during the period 1923 - 50 represent 43 percent of the total. It is called the prickly currant because of its spiny stems. In the open it is an erect Shrub 3 to 4 feet high; in the shade it is reclining and often trailing: The branch internocles are densely spiny except in shade, Where spines are weak, like coarse hairs. The nodes are armed With 3 to 9 stout spines united into a semicircle at the base The leaves are nearly circular in outline 3 to 5 0111. Wide, thin, glabrous or nearly so on both surfaces, and deeply 5 to 7 lobed. The petioles are slender, glandular hairy, and bristly. The racemes bear 10 to - 15 flowers, Which are green, tinged With purple, saucer -shaped, and drooping. The berry is purplish black and covered With weak, gland tipped, coarse hairs. The bush has no distinctive odor. 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.

Excerpt from Blister Rust Control in the Management of Western White Pine Control of white pine blister rust is a major timber management problem in all white pine forests. In the extensive stands of western white pine it is a problem of partieular concern because of host and climatic factors that favor rapid and serious disease invasion. Although timber management practices alone cannot be expected to control the dis - ease, they can materially aid (or impede) this work through their influence on ribes establishment and development. 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.