Download or read book The Gypsy Moth Fungus written by Richard C. Reardon and published by . This book was released on 1998 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Gypsy Moth Fungus Entomophaga Maimaiga in North America written by Richard C. Reardon and published by . This book was released on 1998 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Entomophaga Maimaiga in North America written by Richard C. Reardon and published by . This book was released on 1993 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Field Identification of the Gypsy Moth Fungus Entomophaga Maimaiga written by Ann E. Hajek and published by . This book was released on 1992 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Gypsy Moths Lymantria Dispar in the Niagara Region written by Dayle M. Belme and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The gypsy moth, Lymantria dispar, a major defoliator of broad leaf trees, was accidentally introduced into North America in 1869. Much interest has been generated regarding the potential of using natural pathogens for biological control of this insect. One of these pathogens, a highly specific fungus, Entomophaga maimaiga, was accredited with causing major epizootics in populations of gypsy moth across the north-eastern United States in 1989 and 1990 and is thought to be spreading northwards into Canada. This study examined gypsy moth population densities in the Niagara Region. The fungus, .E.. maimaiga, was artificially introduced into one site and the resulting mortality in host populations was noted over two years. The relationship between fungal mortality, host population density and occurrence of another pathogen, the nuclear polyhedrosis virus (NPV), was assessed. Gypsy moth population density was assessed by counting egg masses in 0.01 hectare (ha) study plots in six areas, namely Louth, Queenston, Niagara-on-the-Lake, Shorthills Provincial Park, Chippawa Creek and Willoughby Marsh. High variability in density was seen among sites. Willoughby Marsh and Chippawa Creek, the sites with the greatest variability, were selected for more intensive study. The pathogenicity of E. maimaiga was established in laboratory trials. Fungal-infected gypsy moth larvae were then released into experimental plots of varying host density in Willoughby Marsh in 1992. These larvae served as the inoculum to infect field larvae. Other larvae were injected with culture medium only and released into control plots also of varying host density. Later, field larvae were collected and assessed for the presence of .E.. maimaiga and NPV. A greater proportion of larvae were infected from experimental plots than from control plots indicating that the experimental augmentation had been successful. There was no relationship between host density and the proportion of infected larvae in either experimental or control plots. In 1992, 86% of larvae were positive for NPV. Presence and intensity of NPV infection was independent of fungal presence, plot type or interaction of these two factors. Sampling was carried out in the summer of 1993, the year after the introduction, to evaluate the persistence of the pathogen in the environment. Almost 50% of all larvae were infected with the fungus. There was no difference between control and experimental plots. Data collected from Willoughby Marsh indicated that there was no correlation between the proportion of larvae infected with the fungus and host population density in either experimental or control plots. About 10% of larvae collected from a nearby site, Chippawa Creek, were also positive for .E.. maimaiga suggesting that low levels of .E.. maimaiga probably occurred naturally in the area. In 1993, 9.6% of larvae were positive for NPV. Again, presence or absence of NPV infection was independent of fungal presence plot type or interaction of these two factors. In conclusion, gypsy moth population densities were highly variable between and within sites in the Niagara Region. The introduction of the pathogenic fungus, .E.. maimaiga, into Willoughby Marsh in 1992 was successful and the fungus was again evident in 1993. There was no evidence for existence of a relationship between fungal mortality and gypsy moth density or occurrence of NPV. The results from this study are discussed with respect to the use of .E.. maimaiga in gypsy moth management programs.

Download or read book Gypsy Moth Management in the United States written by United States. Forest Service and published by . This book was released on 1995 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings U S Department of Agriculture Interagency Gypsy Moth Research Forum 1998 written by Sandra L. C. Fosbroke and published by . This book was released on 1998 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Gypsy Moth Larval Necropsy Guide written by Laura Blackburn and published by . This book was released on 2018 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the early 1900s, a number of parasitoids have been released for classical biological control of the introduced destructive forest insect, Lymantria dispar (gypsy moth), in North America. During this time, two pathogens were accidentally introduced. These pathogens and several of the parasitoid species are now commonly found in North American gypsy moth populations. The aim in creating this guide was to provide laboratory techniques for distinguishing between two common pathogens, the fungus Entomophaga maimaiga and the gypsy moth multiple nucleopolyhedrovirus, and provide illustrations and images for adults, puparia, and cocoons of established gypsy moth parasitoids commonly found in the larval or pupal stages of gypsy moth in North America. Gypsy moth collection and rearing techniques are also reviewed, and a technical glossary and summary table highlighting the affected life stage by gypsy moth parasitoids in North America are included in this guide.

Download or read book Proceedings U S Department of Agriculture Interagency Gypsy Moth Research Forum 1997 written by Sandra L. C. Fosbroke and published by . This book was released on 1997 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Meteorological Factors Affecting the Success of the Gypsy Moth Fungal Pathogen Entomophago Maimaiga Zygomycetes Entomophthorales in Michigan written by Nathan Wade Siegert and published by . This book was released on 2004 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Host Augmentation Non target Effects and Spread of Entomophaga Maimaiga Zygomycetes Entomophthorales at the Southern Edge of the North American Gypsy Moth Range written by Hilary Hollister Gillock and published by . This book was released on 2001 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Michigan Distribution of Entomophaga Maimaiga a Fungal Pathogen of Gypsy Moth Lepidoptera Lymantridae and Impact of Bacillus Thuringiensis to Fungal induced Mortalit written by Molly Anne Mott and published by . This book was released on 1998 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Michigan Distribution of Entomophaga Maimaiga a Fungal Pathogen of Gypsy Moth Lepidoptera Lymantridae and Impact of Bacillus Thuringiensis to Fungal induced Mortality written by Molly Anne Mott and published by . This book was released on 1998 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Allozyme and Restriction Fragment Length Polymorphism Analyses Confirm Entomophaga Maimaiga Responsible for 1989 Epizootics in North American Gypsy Moth Populations written by Ann E. Hajek and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ecology of Invertebrate Diseases written by Ann E. Hajek and published by John Wiley & Sons. This book was released on 2017-10-27 with total page 742 pages. Available in PDF, EPUB and Kindle. Book excerpt: A rapidly growing interdisciplinary field, disease ecology merges key ideas from ecology, medicine, genetics, immunology, and epidemiology to study how hosts and pathogens interact in populations, communities, and entire ecosystems. Bringing together contributions from leading international experts on the ecology of diseases among invertebrate species, this book provides a comprehensive assessment of the current state of the field. Beginning with an introductory overview of general principles and methodologies, the book continues with in-depth discussions of a range of critical issues concerning invertebrate disease epidemiology, molecular biology, vectors, and pathogens. Topics covered in detail include: Methods for studying the ecology of invertebrate diseases and pathogens Invertebrate pathogen ecology and the ecology of pathogen groups Applied ecology of invertebrate pathogens Leveraging the ecology of invertebrate pathogens in microbial control Prevention and management of infectious diseases of aquatic invertebrates Ecology of Invertebrate Diseases is a necessary and long overdue addition to the world literature on this vitally important subject. This volume belongs on the reference shelves of all those involved in the environmental sciences, genetics, microbiology, marine biology, immunology, epidemiology, fisheries and wildlife science, and related disciplines.

Download or read book Gypsy Moth Management in the United States written by and published by . This book was released on 1995 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Natural Enemies written by Ann E. Hajek and published by Cambridge University Press. This book was released on 2004-02-12 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: Publisher Description