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Thesis - University Access Only
Master of Science (MS)
Michael B. Hildreth
The purpose of this masters thesis was to compare the virulence and pathogenicity of N. locustae in two grasshopper species (M. sanguinipes and M. bivittatus) that naturally differed in their sensitivity and susceptibility to this pathogen. In order to accomplish this task, bioassay studies and histopathological studies at the light microscopic and ultrastructural level were conducted using these two grasshopper species. It is hoped that by understanding why N. locustae is more virulent and pathogenic in one grasshopper species and less virulent and pathogenic in another, we may then be able to better understand how this microsporidian damages its hosts. Understanding the normal mechanism for pathogenicity may eventually enable us to improve the virulency of N. locustae and thereby enhance its effectiveness in the field.
Library of Congress Subject Headings
Locusts -- Biological control
Number of Pages
South Dakota State University
Brey, Christopher William, "A Bioassay and Histopathology Study on the Effects of Nosema Locustae in Melanoplus Sanguinipes and Melanoplus Bivittatus" (1991). Electronic Theses and Dissertations. 5423.