Susceptibility of the European chafer (coleoptera : scarabaeidae) to entomopathogenic nematodes (rhabditida: steinernematidae, heterorhabditidae)
The European chafer Rhizotrogus majalis (Razoumowsky) feeds on turfgrass roots, causing major damage in the urban areas of northeastern North America. A laboratory study was conducted to determine the susceptibility of third-instar chafer larvae to four species of entomopathogenic nematodes (Steiner...
Publié dans: | Journal of nematology. - 1969. - 33(2001), 4S vom: 24. Dez., Seite 297-301 |
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Auteur principal: | |
Autres auteurs: | , |
Format: | Article |
Langue: | English |
Publié: |
2001
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Accès à la collection: | Journal of nematology |
Sujets: | Journal Article European chafer biological control entomopathogenic nematodes turfgrass pest |
Résumé: | The European chafer Rhizotrogus majalis (Razoumowsky) feeds on turfgrass roots, causing major damage in the urban areas of northeastern North America. A laboratory study was conducted to determine the susceptibility of third-instar chafer larvae to four species of entomopathogenic nematodes (Steinernema glaseri, S. feltiae, S. carpocapsae, and Heterorhabditis bacteriophora). Only S. glaseri was virulent, and only at high numbers (LD(50) = 294 nematodes/larva). Prolonged contact with nematodes increased host mortality. Optimal conditions for S. glaseri with respect to soil type and soil moisture were determined. Maximum larval mortality was obtained with 7% moisture and a 50/50 mixture of chernozem and sand. These results suggest that these nematodes currently have little potential for the biological control of the European chafer in turfgrass |
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Description: | Date Completed 14.07.2011 Date Revised 20.10.2021 published: Print Citation Status PubMed-not-MEDLINE |
ISSN: | 0022-300X |