| Titles |
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English :
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Pathogenicity of the Entomopathogenic Nematodes; Steinernema abbasi and Heterorhabditis bacteriophora to Certain Economic Insect Pests
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Arabic :
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لتأثير الممرض لنيماتودا الممرضة Heterorhabditis , Steinernema abbasi bacteriophora على بعض الآفات الحشرية الإقتصادية
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| Abstract |
The study was undertaken to compare the pathogenicity of entomopathogenic nematodes; Steinernema abbasi and Heterorhabditis bacteriophora to the 4"' larval instars of the black cutworm, Agrotis ipsilon Hubn., the Egyptian alfalfa weevil, Hypera brunneipennis Boh. and the American bollworm, Helicoverpa armigera Hb., also to pre-pupae and 3-days old pupae of A. ipsilon. Both S. abbasi and H. bacteriophora were highly pathogenic to the 4"' instar larvae of all tested insects. The concentration of 200 Us of either nematode species/larva caused 93.3% mortality in H. armigera and A. ipsilon and 100% in H. brunneipennis larvae. The highest mortality percentage among the treated pre-pupae was 100% at the concentrations of 100 and 200 Us/cm 2 of soil surface 72 hours post infection. The two nematode species were found to be virulent to 3- day old pupae, causing 100 mortality at concentrations of 100 and 200 Us/cm Z,
Key Words: Entomopathogenic nematodes, Steinernema abbasi, Heterorhabditis bacteriophora, Agrotis ipsilon., Hypera brunrteipennis,. Helicoverpa armigera
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| Publication year |
2006
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| Pages |
99-102
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| Availability location |
معهد بحوث وقايه النباتات
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| Availability number |
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| Organization Name |
Plant Protection Research Institute (PPRI)
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| serial title |
Egyptian Journal of Biological Pest Control
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| Author(s) from ARC |
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| Agris Categories |
Protection of plants - General aspects
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AGROVOC
TERMS |
Agrotis ipsilon.
Entomophilic nematodes.
Helicoverpa armigera.
Heterorhabditis bacteriophora.
Hypera.
Pathogenicity.
Steinernema.
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| Publication Type |
Conference/Workshop
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