Original scientific paper

Polyhedral viral disease of Leucoma salicis L. in Voivodina, Yugoslavia

Č. Sidor ; Pasterov zavod, Novi Sad, Jugoslavija
B. Zamola ; CRC-Compagnia di Ricerca Chimica, Department of Applied Microbiology and Biology, Chiasso, Switzerland
F. Kajfež ; CRC-Compagnia di Ricerca Chimica, Department of Applied Microbiology and Biology, Chiasso, Switzerland

Abstract

The paper deals with a nuclear polyhedral viral disease (Bacilovirus) of the brown tail moth (Leucoma salicis L., Lepidoptera, Lymantriidae) which is very often a pest of the poplar tree especially in Voivodina, Yugoslavia. The disease occurs in overcrowded populations of larvae. In our experiments a high percentage of the offspring of parents which survived the infection died with signs of the polyhedral disease (68.44 per cent). Polyhedral viruses of L. salicis stored in a relrigerator at 4-5 °C for four years caused death in 100 per cent of infected moths 17 days after infection. The same results were obtained with freshly isolated viruses. The mortality of the infected L. salicis larvae depends on the kind of feed. Unsuitable food causes a faster development of the disease. Younger larvae of L. salicis are more susceptible to the virus than the older ones. They become infected during the hatching if the surface of egg cluster is contaminated with the polyhedral virus.

Keywords

Hrčak ID:

162104

URI

https://hrcak.srce.hr/162104

Publication date:

18.12.1978.

Article data in other languages: serbian

Visits: 1.304 *