A disjunct Californian strain of entomophaga aulicae infecting Orgyia vetusta

Fungal epizootics occurred in abundant Orgyia vetusta (western tussock moth; Lepidoptera: Lymantriidae) populations on Lupinus arboreus bushes growing on the Pacific coast north of San Francisco, California. The causative pathogen was isolated and identified as Entomophaga aulicae, Group II, based o...

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Bibliographic Details
Published in:Journal of invertebrate pathology 1996-11, Vol.68 (3), p.260-268
Main Authors: HAJEK, A. E, WALSH, S. R. A, STRONG, D. R, SILVER, J. C
Format: Article
Language:English
Subjects:
Animals
Biological and medical sciences
Biological control
biological differences
California
californie
chemotaxonomy
chimiotaxonomie
Control
diferencias biologicas
difference biologique
DNA, Fungal - analysis
entomophaga
epidemia
epidemics
epidemie
esporas fungicas
Fundamental and applied biological sciences. Psychology
fungal spores
Fungi - genetics
Fungi - isolation & purification
Insecta
Invertebrates
lymantria dispar
Moths - microbiology
Mycoses - pathology
orgyia
pathogenicity
Pathology
patogenicidad
Phytopathology. Animal pests. Plant and forest protection
Polymorphism, Restriction Fragment Length
pouvoir pathogene
Protozoa. Invertebrates
quimiotaxonomia
spore fongique
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Description
Summary:Fungal epizootics occurred in abundant Orgyia vetusta (western tussock moth; Lepidoptera: Lymantriidae) populations on Lupinus arboreus bushes growing on the Pacific coast north of San Francisco, California. The causative pathogen was isolated and identified as Entomophaga aulicae, Group II, based on RFLPs using rDNA and PCR-amplified rDNA products. Inability of this fungus to infect the lymantriid Lymantria dispar (gypsy moth) confirmed its distinction from Entomophaga maimaiga, the only other member of this species complex which predominantly infects lymantriids. Later instar wandering by O. vetusta in outbreak populations and close proximity of larvae in dense populations are characteristics most probably promoting development of E. aulicae epizootics; these life history patterns are also typical of lymantria dispar populations experiencing epizootics of E. maimaiga.
ISSN:0022-2011
1096-0805
DOI:10.1006/jipa.1996.0094