NDLI: Natural occurrence of insect pathogenic fungi and insect parasitic nematodes in Diabrotica virgifera virgifera populations

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Natural occurrence of insect pathogenic fungi and insect parasitic nematodes in Diabrotica virgifera virgifera populations

Content Provider	Springer Nature Link
Author	Pilz, Christina Wegensteiner, Rudolf Keller, Siegfried
Copyright Year	2007
Abstract	The Western Corn Rootworm D. virgifera virgifera Le Conte (Coleoptera: Chrysomelidae), a serious pest of maize, has been recently introduced into Europe. Several approaches for its control are presently under investigation including microbial agents. In order to get information on the role of naturally occurring pathogens in the regulation of Diabrotica populations, we started an investigation in established populations in Hungary, Romania, Serbia, Austria, and Italy in 2005 and 2006. In infested maize fields in Hungary, plants and their root systems were grubbed out and larvae and pupae were collected. Adult D. v. virgifera were collected in Hungary, Austria, Romania, Serbia and Italy. Additionally, the occurrence of entomopathogenic fungi in soils of maize fields was determined using Galleria mellonella and Tenebrio molitor larvae as bait insects. The density of entomopathogenic fungi was obtained by plating soil suspension on selective medium. Metarhizium anisopliae and Beauveria spp. infections were found in 1.4% of field collected larvae, 0.2% of field collected pupae and 0.05% of field collected adults. Whereas natural infections of D. v. virgifera were rarely found, a high density of insect pathogenic fungi was recorded in Hungarian soils. M. anisopliae could be detected in every maize field either using the “bait method” or a “selective medium” method. This is the first report of a natural occurrence of entomoparasitic nematodes (Heterorhabditis sp., Steinernema sp.) in Diabrotica v. virgifera in Europe.
Starting Page	353
Ending Page	359
Page Count	7
File Format	PDF
ISSN	13866141
Journal	BioControl
Volume Number	53
Issue Number	2
e-ISSN	15738248
Language	English
Publisher	Springer Netherlands
Publisher Date	2007-02-25
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Chrysomelidae Diabrotica virgifera virgifera Entomopathogenic fungi Entomoparasitic nematodes Metarhizium anisopliae Beauveria spp. Heterorhabditis sp. Western corn root worm Behavioural Sciences Animal Biochemistry Animal Ecology Agriculture Plant Pathology Entomology
Content Type	Text
Resource Type	Article
Subject	Insect Science Agronomy and Crop Science

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Comparative susceptibility of larval instars and pupae of the western corn rootworm to infection by three entomopathogenic nematodes

Comparative efficacy assessment of fungi, nematodes and insecticides to control western corn rootworm larvae in maize

Virulence of entomopathogenic hypocrealean fungi infecting Anoplophora glabripennis

Histopathology caused by the entomopathogenic fungi, Beauveria bassiana and Metarhizium anisopliae, in the adult

Compatibility of entomopathogenic fungi with neonicotinoid insecticides

Biological control of the western corn rootworm ( Diabrotica virgifera virgifera ) by entomoparasitic nematodes

How maize root volatiles affect the efficacy of entomopathogenic nematodes in controlling the western corn rootworm?

Ecological Associations Between Entomopathogenic Fungi and Pest Insects Recorded in Latvia

Capsules containing entomopathogenic nematodes as a Trojan horse approach to control the western corn rootworm

Natural occurrence of insect pathogenic fungi and insect parasitic nematodes in Diabrotica virgifera virgifera populations

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