Effect of temperature on infectivity and multiplication of entomopathogenic nematodes against shoot borer (Conogethes punctiferalis Guen.) infesting ginger (Zingiber officinale Rosc.)
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Title |
Effect of temperature on infectivity and multiplication of entomopathogenic nematodes against shoot borer (Conogethes punctiferalis Guen.) infesting ginger (Zingiber officinale Rosc.)
Not Available |
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Creator |
Pervez R, Eapen S J, Devasahayam S and Jacob T K
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Subject |
Entomopathogenic nematodes, Ginger, Shoot Borer, Temperature
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Description |
Not Available
The attachment, penetration, infectivity and multiplication of eight native isolates of Entomopathogenic nematodes (EPNs), Heterorhabditis sp. (IISR-EPN 01), Steinernema sp. (IISR-EPN 02), Steinernema sp. (IISR-EPN 03), S. carpocapsae (IISR-EPN 06), Oscheius spp. (IISR-EPN 04, 05, and 08) and O. gingeri were tested against larvae of Conogethes punctiferalis at different temperatures viz., 20, 25, 30 and 35°C. The temperature significantly affected attachment, penetration, pathogenicity and multiplication ability of infective juveniles (IJs) of all tested EPNs. Among the test temperatures, maximum mortality of larvae was found at 30°C followed by 25°C, whereas the least mortality was recorded at 20 and 35°C. Maximum number of infective juveniles was multiplied at 30°C, however minimum multiplication was recorded at 35°C. Among the test EPNs, no multiplication of Heterorhabditis sp. (IISR-EPN 01), Steinernema sp. (IISR-EPN 03) and O. gingeri was recorded at 20°C. IJs attached to larvae of C. punctiferalis in higher number after 6 h at 25 and 30°C. Whereas, maximum number of IJs penetrated into C. punctiferalis larvae at 30°C. Therefore, the optimal temperature for infection and development for all promising EPNs was 30°C. Not Available |
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Date |
2021-08-11T04:38:39Z
2021-08-11T04:38:39Z 2015-01-15 |
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Type |
Research Paper
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Identifier |
Pervez R, Eapen S J, Devasahayam S and Jacob T K 2015. Effect of temperature on infectivity and multiplication of entomopathogenic nematodes against shoot borer (Conogethes punctiferalis Guen.) infesting ginger (Zingiber officinale Rosc.). Journal of Biological Control 29(4): 171-176.
2230-7281 http://krishi.icar.gov.in/jspui/handle/123456789/54631 |
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Language |
English
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Relation |
Not Available;
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Publisher |
Society for Biocontrol Advancement
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