Journal of Entomological Science (2007) 42, 329-340

Michael Reding and Michael Klein (2007)
Life history of oriental beetle and other scarabs, and occurrence of Tiphia vernalis in Ohio nurseries
Journal of Entomological Science 42 (3), 329-340
Abstract: The oriental beetle, Anomala orientalis Waterhouse, is a serious pest of nursery crops in northern Ohio and a number of other states because the larvae damage plant roots. In 3 ornamental tree nurseries (field production) in Ohio, the composition of scarab larvae, their life histories, and parasitism rates were examined. Four exotic scarabs, Asiatic garden beetle (Maladera castanea Arrow), European chafer (Rhizotrogus majalis Razoumowsky), Japanese beetle (Popillia japonica Newman), and oriental beetle, were found in this study. The oriental beetle and European chafer were the most common species found. Up to 60% of the oriental beetle population required 2 yrs to complete development, which is much higher than the commonly reported 15% or less in northeastern states. Tiphia vernalis Rohwer, an external parasite of oriental beetle and Japanese beetle larvae, was found in all nurseries surveyed. As much as 31% and 60% of the sampled oriental beetle and Japanese beetle populations, respectively, were parasitized, depending on date and nursery.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Michael G. Klein

Research topic(s) for pests/diseases/weeds:
surveys/sampling/distribution
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
surveys/distribution/isolation

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Popillia japonica		U.S.A. (NE)
	Anomala orientalis		U.S.A. (NE)
	Amphimallon majale		U.S.A. (NE)
	Maladera castanea		U.S.A. (NE)
Tiphia vernalis (parasitoid)	Popillia japonica		U.S.A. (NE)
Tiphia vernalis (parasitoid)	Anomala orientalis		U.S.A. (NE)