Pathogenicity ofHeterorhabditisnematodes isolated from north-western Himalaya against the larvae ofPlutella xylostella(L.) (Lepidoptera: Plutellidae)
| Autor: | Prafulla Kumar Sharma, R. S. Chandel, Y.S. Chandel, Sumit Vashisth |
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| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
Veterinary medicine animal structures Diamondback moth biology fungi Plutella Entomopathogenic nematode Heterorhabditis biology.organism_classification medicine.disease 01 natural sciences Lepidoptera genitalia 010602 entomology Nematode Nematode infection Plutellidae Insect Science Botany medicine Ecology Evolution Behavior and Systematics 010606 plant biology & botany |
| Zdroj: | Annales de la Société entomologique de France (N.S.). 53:204-210 |
| ISSN: | 2168-6351 0037-9271 |
| Popis: | SummaryThe efficacy of three entomopathogenic nematodes (Heterorhabditis spp.), from north western Himalaya, India was studied against the diamondback moth, Plutella xylostella (Linnaeus, 1758) (Lepidoptera: Plutellidae), under laboratory conditions. The larvae were exposed to 10, 20, 30 and 40 infective juveniles (IJs) of each nematode species for different time periods and they were found to be susceptible to all the EPNs tested. However, the susceptibility of larvae to nematode infection varied according to the dosages of IJs and their exposure periods. The efficacy of these indigenous entomopathogenic nematodes was also evaluated against the commercially available entomopathogenic nematode H. indica. An indigenous isolate, H. bacteriophora (HRJ), along with the commercial isolate H. indica recorded 100.0% mortality of insect larvae in 96 h exposure time against third instar larvae of P. xylostella. However, it was noticed that with the advancement of larval stage its mortality rate reduces and vice ve... |
| Databáze: | OpenAIRE |
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