Journal of Economic Entomology (2003) 96, 1076-1082

Albrecht M. Koppenhöfer and Eugene M. Fuzy (2003)
Biological and chemical control of the Asiatic garden beetle, Maladera castanea (Coleoptera: Scarabaeidae)
Journal of Economic Entomology 96 (4), 1076-1082
Abstract: The efficacy of chemical and biological control agents against larvae of the Asiatic garden beetle, Maladera castanea (Arrow), in turfgrass under laboratory, greenhouse, and field conditions were determined. In field trials where insecticides were applied preventively against eggs and young larvae, the molt-accelerating compound halofenozide and the neonicotinoids imidacloprid and thiamethoxam were ineffective, whereas another neonicotinoid, clothianidin, provided 62-93% control. In greenhouse experiments against third instars in pots, the carbamate insecticide carbaryl was ineffective, whereas the organophosphate trichlorfon provided 71-83% control. In laboratory, greenhouse, and field experiments, the entomopathogenic nematode Heterorhabditis bacteriophora Poinar and Steinernema glaseri Steiner (not tested in the field) were ineffective against third instars, whereas S. scarabaei Stock and Koppenhöfer provided excellent control. In microplot field experiments at a rate of 2.5 x 10⁹ infective juveniles per ha, H. bacteriophora provided 12-33% control and S. scarabaei 71-86% control. Combinations of S. scarabaei and imidacloprid did not provide more control of third instars compared with S. scarabaei alone.
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Link to article at publishers website
Database assignments for author(s): Albrecht M. Koppenhöfer

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
control - general
Research topic(s) for beneficials or antagonists:
evaluation - screening - selection

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Maladera castanea	Grasses/turf/rangeland
Heterorhabditis bacteriophora/Photorhabdus (entomopathogen)	Maladera castanea
Steinernema scarabaei/Xenorhabdus koppenhoeferi (entomopathogen)	Maladera castanea