Virulence of three species of entomopathogenic nematodes to the chestnut weevil Curculio elephas Coleoptera Curculionidae
Yazarlar (3)
| Makale Türü | Özgün Makale |
| Makale Alt Türü | SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale |
| Dergi Adı | Nematropica |
| Dergi Tarandığı Indeksler | SCI-Expanded |
| Dergi Grubu | Q4 |
| Makale Dili | İngilizce |
| Basım Tarihi | 01-2004 |
| Cilt No | 34 |
| Sayı | 2 |
| Sayfalar | 199 / 204 |
| Özet |
| Indigenous entomopathogenic nematodes were evaluated in laboratory soil cup experiments as candidates for management of the chestnut weevil, Curculio elephas (Coleoptera: Curculionidae), the most severe insect pest of chestnut in Turkey. Three entomopathogenic nematode species, Steinernema carpocapsae (Anamur strain), S. feltiae (Tur-S3 strain), and Heterorhabditis bacteriophora (Tur-H1 and Tur-H2 strains)(Rhabditida: Steinernematidae, Heterorhabditidae) were bioassayed against last-instar weevils at different temperatures (10, 15, and 25 C) and nematode concentrations (0, 100, 500, and 1000). The steinernematid species were unable to cause lethal weevil infections at 10 C whereas the heterorhabditid strains still induced 21-22% host mortality. The Tur-H2 strain of H. bacteriophora was the most virulent nematode at all temperatures tested, most notably killing 96.5% of weevil larvae at 25 C. LC [sub5][sub0] values for the Tur-H2 and Tur-H1 strains of H. bacteriophora at 15 C, the most probable field application temperature, were 266 and 494 infective juveniles, respectively. |
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