Download or read book The Large Aspen Tortrix written by R. C. Beckwith and published by . This book was released on 1973 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Large Aspen Tortrix written by H. F. Cerezke and published by . This book was released on 1992 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Relationship Between Trembling Aspen Phenology and Larval Development of the Large Aspen Tortrix written by Dylan Parry and published by Canadian Forest Service, Northern Forestry Centre. This book was released on 1997 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: The large aspen tortrix (Choristoneura conflictana) is an occasional defoliator of trembling aspen (Populus tremuloides) in western Canada. Research suggests that there might be a narrow phenological window for successful tortrix colonization of aspen buds in the spring. This paper adapts a stochastic model to describe the temporal relationship between C. conflictana and trembling aspen phenologies. The first characterization of the phenological stages occurring during bud-break and leaf expansion of trembling aspen is provided, as determined from observations at two sites in 1994. Degree-day models based on a common threshold temperature are developed for both insect and bud and shoot development of its host. The influence of changes in the sequence of temporal events on the success or failure of tortrix populations is also discussed.

Download or read book The Ecology and Parasite Complex of the Large Aspen Tortrix Choristoneura Conflictana Walker Lepidoptera Tortricidae in the Upper Peninsula of Michigan written by Ross Fishbough and published by . This book was released on 1977 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Evaluation of Bacillus Thuringiensis Berl for Suppressing Large Aspen Tortrix Populations in Alaska written by Edward H. Holsten and published by . This book was released on 1981 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Forest Entomology written by Robert N. Coulson and published by John Wiley & Sons. This book was released on 1984-05-14 with total page 682 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text considers forest insects occurring in forest ecosystems, specialized forestry settings, and urban forests, with an approach and coverage that make it suitable for use in both undergraduate and graduate courses in forest entomology and forest protection. Early chapters introduce entomology, middle chapters provide the first comprehensive treatment of the principles of Integrated Pest Management (IPM) of forest insects, and later chapters discuss the pest insects according to their feeding group.

Download or read book USDA Forest Service General Technical Report NC written by and published by . This book was released on 1972 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Micro organisms Infecting the Large Aspen Tortrix Choristoneura Conflictana Wlk Lepidoptera Tortricidae written by Burke, J. M and published by Sault Ste. Marie, Ont. : Forest Pest Management Institute. This book was released on 1982 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Aspen written by and published by . This book was released on 1985 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: Information about the biology, ecology, and management of quaking aspen on the mountains and plateaus of the interior western United States, and to a lesser extent, Canada, is summarized and discussed. The biology of aspen as a tree species, community relationships in the aspen ecosystem, environments, and factors affecting aspen forests are reviewed. The resources available within and from the aspen forest type, and their past and potential uses are examined. Silvicultural methods and other approaches to managing aspen for various resources and uses are presented.

Download or read book The Foresters Almanac 1977 written by and published by . This book was released on 1977 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book USDA Forest Service General Technical Report PNW written by and published by . This book was released on 1977 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Quaking Aspen written by Kenneth A. Brinkman and published by . This book was released on 1975 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book USDA Forest Service Research Note RM written by Rocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.) and published by . This book was released on 1973 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S Forest Service Research Note written by United States. Rocky Mountain Forest and Range Experiment Stations, Fort Collins, Colo and published by . This book was released on 1971 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book General Technical Report RM written by and published by . This book was released on 1984 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biological Control of Arthropod Pests of the Northeastern and North Central Forests in the United States written by R. G. Van Driesche and published by . This book was released on 1996 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Agriculture Handbook written by and published by . This book was released on 1990 with total page 896 pages. Available in PDF, EPUB and Kindle. Book excerpt: Set includes revised editions of some issues.