Download or read book Use of the Multi Pher Trap to Monitor Spruce Budworm Populations written by Luc Joseph Jobin and published by Sainte-Foy, Québec : Forestry Canada, Quebec Region. This book was released on 1993 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Multi-Pher insect trap was first manufactured and marketed in 1984. In 1985, it was used in the development of a detection and monitoring system for the spruce budworm over a major part of the distribution area of the species in North America. From 1984- 89, 12 experiments to assess and optimize trap effectiveness were conducted in balsam fir stands infested by spruce budworm in the Gaspe Peninsula. Three models of the trap were compared and the number of males captured was considered an adequate measure of trap effectiveness. Testing compared lure brand and holder, insecticide, funnel, baffle, colour and trap placement, cleanliness, and holder.

Download or read book Use of Pheromone Traps to Monitor Spruce Budworm Populations written by Douglas C. Allen and published by Ottawa, Canadian Forestry Service. This book was released on 1986 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Spruce Budworms Handbook Use of Pheromone Traps to Monitor Spruce Budworm Populations written by and published by . This book was released on 1985 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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:

Download or read book Application of Pheromone Traps to Effectively Monitor Spruce Budworm Populations written by L. P. Abrahamson and published by . This book was released on 1984 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monitoring Spruce Budworm Populations with Pheromone baited Traps written by Douglas C. Allen and published by . This book was released on 1985 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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.

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:

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.

Download or read book Guidelines for Using Sex Pheromone Traps to Monitor Eastern Spruce Budworm Population Densities written by M. D. Tenhagen and published by . This book was released on 1996 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sex pheromone traps are ideal for monitoring larval populations of spruce budworm during periods between outbreaks when larval densities are at extremely low levels. This note provides guidelines on the use of such traps to monitor budworm populations. It describes trap components and materials, assembly and handling of traps, selection of trapping sites and trap deployment, timing of trap-setting, collection of traps, and interpretation of catches.

Download or read book Sticky board Trap for Measuring Dispersal of Spruce Budworm Larvae written by Daniel T. Jennings and published by . This book was released on 1983 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Use of Pheromone Traps to Monitor Spruce Budworm Population written by and published by . This book was released on 1986 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monitoring Western Spruce Budworm with Pheromone baited Sticky Traps to Predict Subsequent Defoliation written by Christine Gail Niwa and published by . This book was released on 2015 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: A detailed procedure is described for monitoring western spruce budworm with pheromone-baited sticky traps and interpreting the results to predict defoliation the following year. Information provided includes timing of the survey, how to obtain traps and baits, how many traps are needed, trap assembly, field placement of traps, and how to evaluate the catches.

Download or read book Sex Pheromone Traps for Monitoring Spruce Budworm Populations written by C. J. Sanders and published by Sault Ste Marie, Ont. : Great Lakes Forestry Centre. This book was released on 1992 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monitoring Spruce Budworm Populations and Damage at the Stand Level written by Bruce A. Montgomery and published by . This book was released on 1983 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report of the Oregon Spruce Budworm Control Project written by Pacific Northwest Forest and Range Experiment Station (Portland, Or.) and published by . This book was released on 1955 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Spruce Budworm Manual for the Lake States written by and published by . This book was released on 1983 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: