dc.contributor.author |
Wegiriya, H. C. E. |
|
dc.date.accessioned |
2021-01-20T08:15:50Z |
|
dc.date.available |
2021-01-20T08:15:50Z |
|
dc.date.issued |
2004 |
|
dc.identifier.uri |
http://ir.lib.ruh.ac.lk/xmlui/handle/iruor/495 |
|
dc.description.abstract |
Nuclear Polyhedrosis Virus (NPV) was isolated from larvae o f Helicoverpa armigera (Hubner), avoracious polyphagous pest attacking wide variety o f economically important crops in Sri Lanka.Effects o f this entomopathogenic virus on larval instars o f H. armigera were studied under the laboratory conditions. Unformulated Polyhedral Inclusion bodies (PIBs) from ground up virus killed larvae ofH. armigera were used to prepare the inoculums. Constant dose o f NPV containing 8x10s PIBs/ml were fed to different larval instars and the percentage mortality and the approximate time to death was found to be dependent on the age o f the larvae. Dose dependent mortality was observed when the 3rd instars larvae treated with serial dilutions o f NPV from JO7 to 10 PIBs/ml. |
en_US |
dc.description.sponsorship |
UNIVERSITY OF RUHUNA |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
UNIVERSITY OF RUHUNA |
en_US |
dc.relation.ispartofseries |
;AP-4571-82 |
|
dc.subject |
Nuclear Polyhedrosis Virus |
en_US |
dc.subject |
Helicoverpa armigera |
en_US |
dc.subject |
Polyhedral Inclusion bodies |
en_US |
dc.title |
Evaluation of indigenous entomopathogenic virus against larvae of Helicoverpa armigera |
en_US |
dc.type |
Article |
en_US |