Download or read book The Forestry Chronicle written by and published by . This book was released on 1980 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Information Report Maritimes Forest Research Centre written by and published by . This book was released on 1980 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bi monthly Research Notes written by and published by . This book was released on 1975 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bi monthly Research Notes Forestry Service Ottawa written by Canadian Forestry Service 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 Forest Insect Investigations Bi monthly Progress Report written by Canada. Department of Forestry and published by . This book was released on 1945 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report Forest Pest Management Institute written by and published by . This book was released on 1981 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Occasional Papers written by Canadian Wildlife Service and published by . This book was released on 1957 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Declines in Canadian Amphibian Populations written by Christine Annette Bishop and published by . This book was released on 1992 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1991, a workshop was held to examine the data related to declines in Canadian amphibian populations and associated causes and, in particular, to develop a protocol to address the issue. Participants were invited to present reports on the current status of knowledge on amphibians in Canada, particularly species that appear to be threatened. Summaries of this information are presented in this report, along with the factors that may be contributing to fluctuations in amphibian populations. Methodologies and tribulations involved in accurately assessing amphibian population size and recruitment are given. A framework for environmental monitoring was presented and the data needed, both intensive and extensive, was discussed.

Download or read book Memoirs of the Entomological Society of Canada written by Entomological Society of Canada (1951- ) and published by . This book was released on 1956 with total page 708 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography of Agriculture written by and published by . This book was released on 1970 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Microlog Canadian Research Index written by and published by . This book was released on 1988 with total page 1112 pages. Available in PDF, EPUB and Kindle. Book excerpt: "An index and document delivery service for Canadian report literature".

Download or read book Forest Insect Pests in Canada written by John Alexander Armstrong and published by Canadian Government Publishing. This book was released on 1995 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt: The papers presented in this book cover the range of forest insect pest management activities in Canada. The first section contains papers on the current status of insect pests by region, including data on insect populations and extent of defoliation caused by the insect. The next section covers pest management technology, including the use of insecticides, insect viruses, fungal pathogens, growth regulators, antifeedants, pheromones, natural predators, and aerial spraying. The third section contains papers on the application of technology and equipment for forest pest control, and includes papers on the impacts of insecticides on the forest environment. The fourth section describes operational control programs by province. The final paper presents future strategies for the management of forest pests. An author index is included.

Download or read book Agrindex written by and published by . This book was released on 1985 with total page 864 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography of Agriculture written by and published by . This book was released on 1970 with total page 1072 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography of Agriculture with Subject Index written by and published by . This book was released on 1970 with total page 786 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biodegradation of Pesticides written by Fumio Matsumura and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: When first developed, chlorinated pesticides such as DDT, dieldrin, and mirex were received with open arms, quickly becoming popular as effective, economic agents against pests. But evidence began to mount that residues of these chemicals remained in the environment, not breaking down, often appearing in plants and animals. By the late seventies many pesticides had achieved a terrible notoriety and were subsequently banned in a number of countries. Of tremendous concern, then, is the persistence of pesticides in the environment. The major thrust of research and development in the area of pesticides has properly been the creation of substances that are both effective and degradable. Yet in order to successfully promote the use of biodegradable pesticides, one must fully understand the mechanism of degradation, and it is to this vital subject that we address ourselves in the present volume. According to the Biodegradation Task Force, Safety of Chemicals Com mittee, Brussels (1978), biodegradation may be defined as the molecular degradation of an organic substance resulting from the complex action of living organisms. A substance is said to be biodegraded to an environmentally acceptable extent when environmentally undesirable properties are lost. Loss of some characteristic function or property of substance by biodegradation may be referred to as biological transformation.

Download or read book The Spruce Budworm written by R. C. Brown and published by . This book was released on 1944 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: