Computer Simulation for Integrated Pest Management of Spruce Budworms PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Computer Simulation for Integrated Pest Management of Spruce Budworms PDF full book. Access full book title Computer Simulation for Integrated Pest Management of Spruce Budworms by Carroll B. Williams. Download full books in PDF and EPUB format.
Author: Carroll B. Williams
Publisher:
ISBN:
Category : Pests
Languages : en
Pages : 16
Get Book Here
Book Description
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.
Author: Carroll B. Williams
Publisher:
ISBN:
Category : Pests
Languages : en
Pages : 16
Get Book Here
Book Description
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.
Author: R. Bruce Anderson
Publisher:
ISBN:
Category :
Languages : en
Pages : 596
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Pests
Languages : en
Pages : 16
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 16
Get Book Here
Book Description
Author: Jayne T. MacLean
Publisher:
ISBN:
Category : Insecticide resistance
Languages : en
Pages : 48
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 400
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 418
Get Book Here
Book Description
Author: John L. Capinera
Publisher: CRC Press
ISBN: 0429712693
Category : Science
Languages : en
Pages : 396
Get Book Here
Book Description
Grasslands comprise the largest and most diverse set of ecosystems in the United States and are among the most extensive in the world. Characterized by scanty rainfall, these western grasslands are too dry for crop production and are used almost exclusively for grazing livestock. The grasslands on the western edge of the Great Plains, known as the
Author: Carlos Castillo-Chavez
Publisher: Springer Science & Business Media
ISBN: 3642466931
Category : Mathematics
Languages : en
Pages : 340
Get Book Here
Book Description
Increasingly, mathematical methods are being used to advantage in addressing the problems facing humanity in managing its environment. Problems in resource management and epidemiology especially have demonstrated the utility of quantitative modeling. To explore these approaches, the Center of Applied Mathematics at Cornell University organized a conference in Fall, 1987, with the objective of surveying and assessing the state of the art. This volume records the proceedings of that conference. Underlying virtually all of these studies are models of population growth, from individual cells to large vertebrates. Cell population growth presents the simplest of systems for study, and is of fundamental importance in its own right for a variety of medical and environmental applications. In Part I of this volume, Michael Shuler describes computer models of individual cells and cell populations, and Frank Hoppensteadt discusses the synchronization of bacterial culture growth. Together, these provide a valuable introduction to mathematical cell biology.
Author: Society of American Foresters. Region VI. Technical Conference
Publisher:
ISBN:
Category : Fir
Languages : en
Pages : 228
Get Book Here
Book Description
