Virulence of nucleopolyhedroviruses from Orgyia pseudotsugata and Orgyia leucostigma (Lep., Lymantriidae) for early instars of the white-spotted tussock moth, Orgyia thyellina

Authors
Walsh, PJ Glare, TR Nelson, TL Sadler, TJ Ward, VK
Citation
Pj. Walsh et al., Virulence of nucleopolyhedroviruses from Orgyia pseudotsugata and Orgyia leucostigma (Lep., Lymantriidae) for early instars of the white-spotted tussock moth, Orgyia thyellina, J APPL ENT, 123(6), 1999, pp. 375-379
Citations number
12
Categorie Soggetti
Entomology/Pest Control
Journal title
JOURNAL OF APPLIED ENTOMOLOGY-ZEITSCHRIFT FUR ANGEWANDTE ENTOMOLOGIE
ISSN journal
09312048 → ACNP
Volume
123
Issue
6
Year of publication
1999
Pages
375 - 379
Database
ISI
SICI code
0931-2048(199907)123:6<375:VONFOP>2.0.ZU;2-I
Abstract
The white-spotted tussock moth, Orgyia thyellina, was found in Auckland, Ne w Zealand, in 1995. An eradication campaign against this potential pest is currently underway, bur in the event that it is unsuccessful, agents for po pulation suppression will be required. As no pathogens were available from O. thyellina, two nucleopolyhedroviruses (NPVs) from Orgyia pseudotsugara ( OpMNPV 'Virtuss(TM),) and Orgyia leucostigma (OrleSNPV) were imported from Canada and tested for virulence against O. thyellina. At 10(5) polyhedral i nclusion bodies per cm(2) and above, 100% mortality was achieved with first to second instar larvae by 15 days. Molecular comparison of sequences from the pol gene region of each virus demonstrated that they were from differe nt genotypic groups of NPVs.