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Variability in foraging behaviour, thermal requirement and virulence of entomopathogenic nematodes against sod webworm, herpetogramma phaeopteralis Guene(Lepidoptera:Crambidae)

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Title Variability in foraging behaviour, thermal requirement and virulence of entomopathogenic nematodes against sod webworm, herpetogramma phaeopteralis Guene(Lepidoptera:Crambidae)
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Creator Nagesh,M Balachander,M. TM Shivalingaswamy, Patil Jagadees, Shylesha, A.N., Raghavendra,A.
 
Subject Degree-days, foraging, Herpetogramma phaeopteralis, Heterorhabditis indica, H. bacteriophora, sod webworm, Steinernema abbasi, thermal requirement, turfgrass, virulence, variability
 
Description Not Available
Not: Variability in virulence among entomopathogenic nematodes, Heterorhabditis indica, H. bacteriophora and Steinernema
abbasi, was studied for lethality, foraging behaviour in response to host volatiles, thermal requirements (degree-days), recyclability,
persistence and field efficacy against Turfgrass Sod Webworm (TSW), Herpetogramma phaeopteralis. Comparatively, lethal concentration
and time were lowest for H. indica against TSW. Recyclability of EPN ranged from 3.42 × 105
to 4.23 × 105
IJs g1
of TSW. H. bacteriophora
recorded highest movement rate on agar (0.38–0.78cm) and sand-agar (0.45–0.56cm), followed by S. abbasi, and H. indica. Responding to
TSW volatiles, S. abbasi recorded maximum movement, H. bacteriophora, moderate, and H. indica, lowest. Heterorhabditis indica (with
nictitation); S. abbasi and H. bacteriophora (without nictitation) were ambusher and cruiser, respectively. S. abbasi preferred warmer temperatures (30–33°C), H. bacteriophora, moderate (24–27°C), and H. indica, a wider range (24–30°C), for virulence based on thermal requirement.
In field, EPNs were comparable to chlorpyriphos against TSW. We demonstrated the complementarity of thermal preferences of EPNs and
insect pest was critical besides attributes like foraging behaviour, recyclability, persistence, and lethality values for their success in the field. Available
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Date 2024-04-24T11:37:02Z
2024-04-24T11:37:02Z
2019-05-24
 
Type Research Paper
 
Identifier Not Available
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http://krishi.icar.gov.in/jspui/handle/123456789/82318
 
Language English
 
Relation Not Available;
 
Publisher Not Available