Progeny production of Steinernema abbasi in lepidopterous larvae

Elawad, Sami A.; Gowen, S. R.; Hague, N. G. M.

doi:10.1080/09670870150215568

Cited by 19 publications

(13 citation statements)

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“…On G. mellonella the highest multiplication was obtained with isolate DL14 (263 · 10 3 IJ/larva) and S. sangi (211 · 10 3 IJs/larva). These rates are comparable to those for S. riobrave (300 · 10 3 IJ/larva) (Grewal et al, 1994), S. abbasi (234 · 10 3 IJ/larva) (Elawad et al, 2001), and for S. feltiae (200 · 10 3 IJ/larva) (Dutky et al, 1964).…”

Section: -2 CMsupporting

confidence: 75%

“…Grewal et al (1994) suggested that progeny production in vivo is a good guide to the potential of EPN for mass production and commercialisation. When screening for multiplication of Steinernema isolates, the greatest progeny generally is obtained on G. mellonella (Karunakar et al, 1999;Elawad et al, 2001). In our study all isolates multiplied better on G. mellonella than on S. littoralis.…”

Section: -2 CMmentioning

confidence: 65%

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Pathogenic potential of six isolates of entomopathogenic nematodes (Rhabditida: Steinernematidae) from Vietnam

2005

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The potential of six Steinernema isolates, isolated from different provinces in Vietnam, was evaluated in the laboratory against Galleria mellonella and Spodoptera littoralis. Steinernema sangi and S. robustispiculum TN24 had the highest penetration rate in both hosts according to a penetration rate assay. The virulence assay showed that S. sangi had a high virulence to both hosts and along with isolate TN38 it was the most mobile among the isolates tested. The migration of S. sangi in sand columns with an insect host at the bottom was significantly higher than in sand columns without insect host. This Steinernema species was the only one that penetrated a host in 24 h after migrating 10 cm in sand columns at 25°C. Moreover, a multiplication assay showed that S. sangi produced a high number of infective juveniles in G. mellonella. However, all Steinernema isolates tested had low multiplication rates in S. littoralis.

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Section: -2 CMsupporting

confidence: 75%

Section: -2 CMmentioning

confidence: 65%

Pathogenic potential of six isolates of entomopathogenic nematodes (Rhabditida: Steinernematidae) from Vietnam

2005

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“…Our observations clearly demonstrated that most of the steinernematid isolates multiplied better than H. indica isolates. Many authors reported factors like initial inoculum density (Selvan et al 1993;Shapiro-Ilan et al 1999;Susurluk 2008), host species (Elawad et al 2001;Phan et al 2005), size of the host (Flander et al 1996) and IJs body size of nematodes (Bhatnagar et al 2004) determining the total number of nematode production of any species or strain.…”

Section: Discussionmentioning

confidence: 97%

Potential of Nepalese entomopathogenic nematodes as biocontrol agents against Holotrichia longipennis Blanch. (Coleoptera: Scarabaeidae)

et al. 2011

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Holotrichia longipennis Blanch. (Coleoptera: Scarabaeidae) is a serious pest of commercial crops in Siduwa, Dhankuta, Nepal. Seven indigenous isolates of entomopathogenic nematodes (Steinernema lamjungense LMT5, S. lamjungense SS4, S. everestense DKP4, S. abbasi CS1, S. sp. KL1, Heterorhabditis indica CK2 and H. indica CK6) were used in a series of bioassays against the insect. All isolates showed an increased dispersal in response to H. longipennis. Nematodes were more attracted towards third instar larvae than to second instars. Differences in penetration and multiplication in the insect were observed amongst the seven isolates. Steinernema lamjungense LMT5, S. everestense DKP4 and S. abbasi CS1 caused greater mortality than other isolates to different developmental stages. Pupae and second instar larvae were more susceptible than third instar larvae. Significant differences were observed in LT 50 values of the isolates against different stages of H. longipennis. Three isolates (S. lamjungense LMT5, S. everestense DKP4 and S. abbasi CS1) along with a commonly used insecticide (chlorpyrifos) were tested against this insect in pot and field experiments. In pot experiments using maize and cabbage as a host crop, S. lamjungense LMT5 and S. everestense DKP4 performed better than S. abbasi CS1 and yielded a mortality comparable with chlorpyrifos. Similar results were observed in field experiments 3 weeks after nematode application. These experiments overall suggest S. lamjungense LMT5 to be a promising biocontrol agent against H. longipennis followed by S. everestense DKP4 and S. abbasi CS1.

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“…Alternative and novel in vivo hosts that have been tested for cultivation of EPNs include: silkworm, Bombyx mori (L.) (Zaki et al 2000;Han et al 2003), the root grub Holotrichia serrata (Fabricius), cotton bollworm, Helicoverpa armigera (Hübner), rice moth Corcyra cephalonica (Stainton) (Ali et al 2008) and bollworms, Helicoverpa virescens (Fabricius) and Spodoptera exigua (Hübner) (Elawad et al 2001). EPNs cultured in insect hosts within the nematodes' natural host range have proved to be of superior quality.…”

Section: Hostsmentioning

confidence: 99%

The Role of Entomopathogenic Nematodes as Biological Control Agents of Insect Pests, with Emphasis on the History of Their Mass Culturing andin vivoProduction

Zyl

Malan

2014

African Entomology

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Progeny production of Steinernema abbasi in lepidopterous larvae

Cited by 19 publications

References 0 publications

Pathogenic potential of six isolates of entomopathogenic nematodes (Rhabditida: Steinernematidae) from Vietnam

Pathogenic potential of six isolates of entomopathogenic nematodes (Rhabditida: Steinernematidae) from Vietnam

Potential of Nepalese entomopathogenic nematodes as biocontrol agents against Holotrichia longipennis Blanch. (Coleoptera: Scarabaeidae)

The Role of Entomopathogenic Nematodes as Biological Control Agents of Insect Pests, with Emphasis on the History of Their Mass Culturing andin vivoProduction

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