Susceptibility of Hoplia philanthus (Coleoptera: Scarabaeidae) larvae and pupae to entomopathogenic nematodes (Rhabditida: Steinernematidae,Heterorhabditidae) |
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| Affiliation: | 1. Institute for Agricultural and Fisheries Research, Burg. Van Gansberghelaan 96, B-9820 Merelbeke, Belgium;2. Laboratory for Agrozoology, Ghent University, Coupure Links 653, 9000 Gent, Belgium;1. Zoologisches Forschungsmuseum A. Koenig, Adenauerallee 160, 53113, Bonn, Germany;2. Department of Biology, University of Mississippi, University, MS 38677, USA;1. Program in Chemical Biology, University of Michgan, Ann Arbor 48109, United States;2. Department of Chemistry, University of Michigan, Ann Arbor 48109, United States;1. Department of Biotechnology, JSS Science and Technology University, JSS Technical Institutions Campus, Mysuru 570 006, Karnataka, India;2. Department of Studies in Biosciences, University of Mysore, Hemagangothri, Hassan, Karnataka 570006, India;3. Department of Studies in Chemistry, University of Mysore, Mysuru 570 006, Karnataka, India;1. School of Agriculture, Yangtze University, Jingzhou, Hubei 434025, China;2. State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China;3. Zhengzhou Botanical Garden, Zhengzhou 450042, China;1. Department of Bioresource Sciences, Andong National University, Andong 36729, Republic of Korea;2. Bongwha County, 1111 Bonghwa-ro, Bonghwa 36239, Republic of Korea;3. Horticultural & Herbal Crop Environment Division, National Institute of Horticultural & Herbal Science, RDA, Wanju 55365, Republic of Korea;4. Division of Crop Cultivation and Environment Research, Department of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration, Suwon 16429, Republic of Korea;1. Institute of Clinical Microbiology, University Hospital in Hradec Kralove, Czech Republic;2. Charles University in Prague, Faculty of Medicine in Hradec Kralove, Czech Republic;3. Department of Molecular Biology, Institute of Clinical Biochemistry and Diagnostics, University Hospital in Hradec Kralove, Czech Republic;4. 4th Department of Internal Medicine - Haematology, Charles University, University Hospital Hradec Kralove, Czech Republic |
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| Abstract: | Biological control potential of nine entomopathogenic nematodes, Heterorhabditis bacteriophora CLO51 strain (HbCLO51), H. megidis VBM30 strain (HmVBM30), H. indica, Steinernema scarabaei, S. feltiae, S. arenarium, S. carpocapsae Belgian strain (ScBE), S. glaseri Belgian strain (SgBE) and S. glaseri NC strain (SgNC), was tested against second-, and third-instar larvae and pupae of Hoplia philanthus in laboratory and greenhouse experiments. The susceptibility of the developmental stages of H. philanthus differed greatly among tested nematode species/strains. In the laboratory experiments, SgBE, SgNC, HbCLO51 and HmVBM30 were highly virulent to third-instar larvae and pupae while SgBE was only virulent to second-instar larvae. Pupae were highly susceptible to HbCLO51, HmVBM30, SgBE and SgNC (57–100%) followed by H. indica and S. scarabaei (57–76%). In pot experiments, HbCLO51, SgBE and S. scarabaei were highly virulent to the third-instar larvae compared to the second-instar larvae. Our observations, combined with those of previous studies on other nematode and white grub species, show that nematode virulence against white grub developmental stages varies with white grub and nematode species. |
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