A VIRUS DISEASE OF RHUBARB IN BRITISH COLUMBIA

1967 ◽  
Vol 45 (7) ◽  
pp. 1059-1061 ◽  
Author(s):  
R. Stace-Smith ◽  
G. G. Jacoli
Keyword(s):  
British Columbia ◽  
Mosaic Virus ◽  
Electron Micrographs ◽  
Myzus Persicae ◽  
Virus Disease ◽  
Turnip Mosaic Virus ◽  
Rheum Rhaponticum ◽  
Young Leaves ◽  
Fraser Valley ◽  
Test Plants

Severe mottling and stunting was observed in a planting of rhubarb (Rheum rhaponticum L.) in the lower Fraser Valley of British Columbia. A virus was mechanically transmitted from the young leaves of infected plants to a range of herbaceous test plants. The virus was also transmitted by the aphid Myzus persicae Sulz. from rhubarb to petunia and back to rhubarb seedlings. From the symptoms on herbaceous hosts, transmission by aphids, and measurements of electron micrographs, the virus was identified as turnip mosaic virus. Reciprocal serological reactions with type isolates of turnip mosaic virus confirmed this.

THE STAGES OF ERANNIS VANCOUVERENSIS (LEPIDOPTERA: GEOMETRIDAE) AND LIFE HISTORY NOTES

1973 ◽  
Vol 105 (4) ◽  
pp. 605-612 ◽  
Author(s):  
David Evans
Keyword(s):  
British Columbia ◽  
Life History ◽  
Virus Disease ◽  
Pupal Stage ◽  
Early Spring ◽  
Deciduous Trees ◽  
Life Stages ◽  
Larval Instars ◽  
Central California ◽  
Young Leaves

AbstractErannis vancouverensis Hulst occurs from northern British Columbia to central California, and has been occasionally reported at infestation levels. The larvae feed on young leaves of several species of deciduous trees; winter is passed in the egg or sometimes in the pupal stage; adults emerge during late autumn or occasionally during winter or early spring; females are wingless. The life stages, including larval instars, are described here in detail. Virus disease and parasitism by tachinid flies help control the species.

scholarly journals Wirus mozaiki ogórka na zawilcu (Anemone coronaria L.) [Cucumber mosaic virus on Anemone coronaria L.]

2015 ◽  
Vol 26 (2) ◽  
pp. 237-249
Author(s):  
J. Kochman ◽  
A. Kowalska ◽  
R. Krasuska
Keyword(s):  
Cucumber Mosaic Virus ◽  
Mosaic Virus ◽  
Myzus Persicae ◽  
Whole Plants ◽  
Test Plants

From <i>Anemone coronaria</i> cucumber mosaic virus (<i>Cucumis virus 1 Smith</i>) was isolated. It caused a general chlorosis, reduction of leaves blades and of the whole plants. 66 species of test plants were inoculated with the sap from infected cucumber plants. 33 of these were infected systemically and 11 only locally. Among 22 noninfected plants was <i>Anemone coronaria</i> which indicated as it was experimentally proved, that this species is infected only by the aphids – <i>Myzus persicae</i> Sulz.

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