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EBookClubs

Read Books & Download eBooks Full Online

Book Spruce Budworm and Jack pine Worm Management

Download or read book Spruce Budworm and Jack pine Worm Management written by and published by . This book was released on 1971 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Spruce Budworms Handbook

Download or read book Spruce Budworms Handbook written by Daniel M. Schmitt and published by . This book was released on 1984 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Jack Pine Budworm Biology and Management

Download or read book Jack Pine Budworm Biology and Management written by Winston Jan Anthony Volney and published by Northern Forestry Centre. This book was released on 1995 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents proceedings of a symposium on the biology and management of the jack pine budworm (Choristoneura pinus Freeman). Topics of symposium papers included regional perspectives and histories of jack pine budworm infestation and control operations, budworm population biology, defoliation prediction, budworm monitoring, effects of stand age and site index on budworm damage, decision support tools for budworm management, jack pine forest ecosystem relationships, hazard rating and stand vulnerability assessment, and impact of jack pine budworm in Ontario.

Book Spruce Budworms Handbook

Download or read book Spruce Budworms Handbook written by Paul R. Adamus and published by . This book was released on 1984 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: Set includes revised editions of some issues.

Book The Spruce Budworm Handbook

Download or read book The Spruce Budworm Handbook written by Bruce A. Montgomery and published by . This book was released on 1982 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book A Simulation of Alternative Management Strategies for the Control of Jack Pine Budworm

Download or read book A Simulation of Alternative Management Strategies for the Control of Jack Pine Budworm written by Dietmar Rose and published by . This book was released on 1972 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book The Spruce Budworm Problem in Ontario real Or Imaginary

Download or read book The Spruce Budworm Problem in Ontario real Or Imaginary written by J. R. Carrow and published by Sault Ste. Marie, Ont. : The Centre. This book was released on 1983 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this symposium was to improve understanding of thenature of the spruce budworm problem in Ontario, and to generatediscussion on five theme questions relating to the importance ofthe problem in Ontario in the future (1982-2000). The fivequestions were: 1. How important will the spruce-fir componentbe? 2. What are the attitudes of forest industry towards futureutilization of balsam fir? 3. In what forest use patterns willthe spruce budworm be important? 4. What management actionsshould be taken now to reduce future impact? 5. What informationis needed to facilitate management of the spruce budworm problem?

Book The Spruce Budworm on Michigan Pine

Download or read book The Spruce Budworm on Michigan Pine written by Samuel Alexander Graham and published by . This book was released on 1935 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Silvicultural Techniques and Guidelines for the Management of Major Insects and Diseases of Spruce Pine and Aspen in Eastern Canada

Download or read book Silvicultural Techniques and Guidelines for the Management of Major Insects and Diseases of Spruce Pine and Aspen in Eastern Canada written by Peter De Groot and published by Sault Ste. Marie, Ont. : Natural Resources Canada, Canadian Forest Service. This book was released on 2005 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book A Problem Analysis of Population Dynamics of the Jack Pine Budworm

Download or read book A Problem Analysis of Population Dynamics of the Jack Pine Budworm written by William G. Bradshaw and published by . This book was released on 1965 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Studies on the Spruce Budworm Cacoecia Fumiferana Clem

Download or read book Studies on the Spruce Budworm Cacoecia Fumiferana Clem written by James Malcolm Swaine and published by . This book was released on 1924 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Computer Simulation for Integrated Pest Management of Spruce Budworms

Download or read book Computer Simulation for Integrated Pest Management of Spruce Budworms written by Carroll B. Williams and published by . This book was released on 1982 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Some field studies of the effects of various insecticides on the spruce budworm (Choristoneura sp.) and their parasites have shown severe suppression of host (budworm) populations and increased parasitism after treatment. Computer simulation using hypothetical models of spruce budworm-parasite systems based on these field data revealed that (1) effective parasites produce greater stability in budworm populations than ineffective ones and are more resistant to changes induced by insecticides; and (2) the level of budworm population suppression in most budworm·parasite systems is not proportional to the amount of insecticide applied. Only high insecticide dosages produce any effect on the budworm population. Cost-benefit analyses showed that very high investments are worthwhile, but moderate investments produce little effect. The study demonstrated that the computer simulation pmcess helps to define kinds of information needed for understanding the budworm-parasite system, and can predict system behavior under varying conditions.