Inhaltsangabe
Excerpt from Control of the Locust Borer
The locust borer severely damages its host trees by making large tunnels in the sapwood and heartwood which render the wood use less for-posts or construction work and may often cause the tree to break and fall.
Black locust is being extensively planted for soil-binding purposes on eroded lands, and this circular deals largely with the protection of these young plantations.
The adult is long-horned beetle, about three-fourths of an inch in length, which lays its eggs in rough crevices of the bark or around wounds. The insect hibernates as a young larva in the inner bark of the tree and bores into the wood the following summer.
Recent investigations, covering a. 7 -year period, carried on at Columbus, Ohio, have shown that a very close relationship appears to exist between damage by the locust borer and tree vigor. The more vigorous the tree the less is the borer damage; Factors that reduce the vigor of the tree tend to increase its susceptibility to borer injury. Important among these factors are drought, fire, and graz ing of livestock; _on the other hand, factors that stimulate growth rate tend to reduce the susceptibility of a tree to borer injury.
Certain silvicultural methods, designed to improve growing condi tions, have demonstrated considerable promise in borer control. These include clear-cutting, thinning, mulching, and the use of mixed plantings. Of these, clear-cutting appears useful in slowly growing stands where cutting of the trees is followed very rapid growth in the sprouts which develop from the stumps. Thinning is applicable in moderately to rapidly growing stands, where the more slowly growing and highly susceptible understory trees are removed to re duce the borer population and to make conditions for growth more favorable in the residual stand by reducing competition for light, moisture, and soil nutrients. Mixed planting has promise in the establishment of new plantations on soils which will support other broadleaved tree species. Mulching with hardwood leaves, because of the cost, is limited to trees of high value. Mulching effects may be obtained at verv low cost, however, by interplanting black in existing open-park woods. The use of superior varieties of black locust appears to offer some promise of control.
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.
Die Inhaltsangabe kann sich auf eine andere Ausgabe dieses Titels beziehen.
Suchergebnisse für Control of the Locust Borer (Classic Reprint)
Foto des Verkäufers
Control of the Locust Borer (Classic Reprint)
Print-on-DemandAnbieter: Forgotten Books, London, Vereinigtes Königreich
Verkäuferbewertung 4 von 5 Sternen
Paperback. Zustand: New. Print on Demand. This book targets a pervasive problem facing farmers: the locust borer and its detrimental impact on black locust tree plantations. The author draws on findings from a seven-year study to outline how the locust borer operates, its life cycle, and how to combat its effects, especially in plantations where black locust trees are grown to prevent soil erosion. The author emphasizes that tree vigor is linked to the severity of borer damage and suggests silvicultural methods to improve growing conditions and reduce susceptibility to borer injury. These methods include clear-cutting, thinning, mulching, and mixed planting. Beyond silvicultural methods, the book also discusses natural enemies of the locust borer, such as woodpeckers, and chemical control options, making this a comprehensive guide to protecting black locust plantations from this damaging pest. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Bestandsnummer des Verkäufers 9781528491884_0
Neu kaufen
EUR 15,11
Versand gratis
Versand von Vereinigtes Königreich nach USA
Versand von Vereinigtes Königreich nach USA
Anzahl: Mehr als 20 verfügbar