Download or read book North American Sugar Maple Decline Project written by and published by . This book was released on 1991 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sugar Maple Crown Conditions Improve Between 1988 and 1992 written by and published by . This book was released on 1993 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Condition of Sugar Maple 1994 written by and published by . This book was released on 1995 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book DECADAL REEVALUATION OF SUGAR MAPLE DIEBACK ETIOLOGY ACROSS THE UPPER GREAT LAKES REGION written by and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract : Sugar maple (Acer saccharum) is a foundational tree species in northern hardwood forests of the United States and Canada. Though previous work has documented areas of substantial stress for this species in eastern North America, increasing reports of crown dieback in the Upper Great Lake states through the early 2000's highlighted the relative lack of understanding of regional trends and causes. A 120-plot network of maple forest health monitoring sites was established and annually visited across Upper Michigan, northern Wisconsin, and eastern Minnesota between 2009 and 2012 to catalog and understand the regional phenomenon. Results from the project's initial years (Phase I) determined a significant correlation between sugar maple dieback and interrelated forest floor conditions (earthworm impact rating, soil carbon, herbaceous cover, and soil manganese) known to be influenced by exotic earthworms. Ten years later, the network was resurveyed in 2021 and 2022 (Phase II). Sampling methods replicated prior methodology and added additional damaging agent signs and symptoms, including ungulate browse, lecanium species (Parthenolecanium spp.) and cottony maple scale (Pulvinaria innumerabilis), as well as more detailed sampling of earthworm species abundance, diversity, and impact. Resurvey data suggest earthworm impact rating is still significantly correlated with sugar maple dieback across the network. Sugar maple dieback is ongoing and is 15.4% per tree averaged at the plot level (compared with 12.4% ten years ago) across the study area, though it is highly variable. Also, average canopy dieback for residual trees in harvest treatments worsened over the intervening years. Scale are not apparently linked to dieback condition. Future uses for the data include amendment of risk maps that land managers can incorporate into treatment plans using key correlates of decreased sugar maple health and vigor.

Download or read book Investigations of Sugar Maple Decline in New York Woodlands written by Craig Rittenhouse Hibben and published by . This book was released on 1962 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dieback of Sugar Maple Upper Michigan 1962 written by Kenneth J. Kessler and published by . This book was released on 1963 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sapstreak Disease of Sugar Maple written by David R. Houston and published by . This book was released on 1994 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sapstreak disease is a potentially serious problem of sugarbushes and forest stands. It is caused by the fungus Ceratocystis virescens, which invades sapwood of roots and bases of stems through wounds created during logging, saphauling, or other activities. This report describes the results of observations and experiments to learn more about the patterns of disease development and the factors that affect them, within individual trees and within representative forests and sugarbushes.

Download or read book Effects of Defoliation and Drought on Root Food Reserves in Sugar Maple Seedlings written by Johnson Parker and published by . This book was released on 1970 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: S2The artificial defoliation of sugar maple (Acer saccharum Marsh.) can cause a marked decline in root food reserves, especially starch, and an increase in the levels of the reducing sugars, fructose and glucose. Defoliation can also bring on the dieback-decline syndrome in sugar maples (Parker and Houston 1968). Because drought, too, can bring on dieback symptoms, the question arose whether drought (or a combination of drought and defoliation) has the same effect as defoliation on root food reserves and reducing sugars. Two experiments designed to examine this question were conducted in 1968-69. In one, the effects of both drought and defoliation were examined; in the second, defoliation was eliminated as a variable. This paper is a report on those experiments. S3.

Download or read book Dieback of Sugar Maple Upper Michigan 1962 written by K. J. Kessler and published by . This book was released on 1963 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book North American Maple Project written by and published by . This book was released on 1995 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Influence of Nitrogen on Sugar Maple Decline written by Donald Lewis Mader and published by . This book was released on 1969 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sugar Maple Ecology and Health written by Stephen Braithwaite Horsley and published by . This book was released on 1999 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book North American Sugar Maple Decline Project written by Imants Millers and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sugar Maple Crowns in Good Condition in 1993 written by and published by . This book was released on 1994 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Diseases of Shade and Ornamental Maples written by Curtis May and published by . This book was released on 1961 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The North American Sugar Maple Decline Project written by and published by . This book was released on 1989 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the fall/winter of 1987 a project was begun to determine if the measured rate of change in sugar maple tree conditions is related to various levels of pollution, managed sugarbush vs. undisturbed stands, or various levels of initial stand decline conditions; the possible causes of sugar maple decline; and the geographical relationships between causes and the extents of decline. This report summarizes the results of the 1988 field season.

Download or read book Cambial Dieback and Taphole Closure in Sugar Maple After Tapping written by Carter B. Gibbs and published by . This book was released on 1973 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: