dc.contributor.author | Nyasani, J O | |
dc.contributor.author | Kimenju, J W | |
dc.contributor.author | Olubayo, F M | |
dc.date.accessioned | 2013-06-20T14:07:05Z | |
dc.date.available | 2013-06-20T14:07:05Z | |
dc.date.issued | 2007 | |
dc.identifier.citation | African Crop Science Conference Proceedings Vol 8.pp.1063-1066 2007 | en |
dc.identifier.uri | http://www.acss.ws/Upload/XML/Research/403.pdf | |
dc.identifier.uri | http://erepository.uonbi.ac.ke:8080/xmlui/handle/123456789/36925 | |
dc.description.abstract | Laboratory studies were conducted on diamondback moth (DBM) larvae,
Plutella xylostella
(Linnaeus)
(Lepidoptera: Plutellidae) using five different entomopathogenic nematodes (EPNS) isolates obtaine
d from National
Agricultural Research Laboratories, Kenya. The DBM larvae were obtained from field collections at Kabete Campus
Field Station
.
The exposure time fifty
(
ET
50
)
of the entomopathogenic nematode isolates to DBM larvae was
determined by leaf dis
c bioassay method. All the entomopathogenic nematode isolates tested caused mortality to the
DMB larvae
.
The ET
50
of
Steinernema karii
was significantly higher than that of
Heterorhabditis indica
and
Steinernema waiseri
(
95%
fiducial limits at
1%
level
).
Th
e ET
50
of the entomopathogenic nematodes tested ranged
from
20.27
to
38.12
hours
.
The effect of time on the percentage mortality was significant
(
d
.
f
=
2,214
;
F
=
<
0.001
).
Average penetration rate for
Heterorhabditis
sp.
, Steinernema
sp.,
Steinernema kari
i, Heterorhabditis indica, and
Steinernema waiseri
was
19.17%
31.67%
27.17%
46.41%
and
75%
respectively
This study revealed that
entomopathogenic nematodes (EPNs) have a great potential that should be exploited in diamondback moth
management | en |
dc.language.iso | en | en |
dc.publisher | University of Nairobi. | en |
dc.title | Potential of using entomopathogenic nematodes in the management of diamondback moth Plutella xylostella (L.) (Lepidoptera:Plutellidae) in Kenya | en |
dc.type | Article | en |
local.publisher | Department of Crop protection | en |