Evaluation of indigenous entomopathogenic virus against larvae of Helicoverpa armigera

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