STUDIES ON RUBUS VIRUS DISEASES IN BRITISH COLUMBIA: VI. VARIETAL SUSCEPTIBILITY TO APHID INFESTATION IN RELATION TO VIRUS ACQUISITION

1960 ◽  
Vol 38 (3) ◽  
pp. 283-285 ◽  
Author(s):  
Richard Stace-Smith

Field populations of the large raspberry aphid, Amphorophora rubi (Kalt.), were observed for 4 years on 13 varieties of raspberry. Lloyd George and St. Walfried were immune, Malling Enterprise and Malling Promise were resistant, and the remainder were susceptible to infestation. Each variety was naturally infected with black raspberry necrosis virus. Vector studies demonstrated that this virus was acquired with difficulty from the immune varieties and also from the susceptible variety St. Regis, but was readily acquired from the remaining 10 varieties.

Author(s):  

Abstract A new distribution map is provided for Black raspberry necrosis virus. Hosts: Rubus spp. Information is given on the geographical distribution in Europe (France, Germany, Italy, Mainland Italy, Netherlands, Norway, Poland, Romania, Serbia, UK, Scotland), North America (Canada, British Columbia, USA, Michigan, Oregon, Pennsylvania, Tennessee, Wisconsin), Oceania (Australia, New Zealand).


1955 ◽  
Vol 33 (4) ◽  
pp. 314-322 ◽  
Author(s):  
R. Stace-Smith

Raspberry indexing in British Columbia demonstrated that several varieties are carrying a latent virus that induces mild symptons in other red raspberry varieties and severe symptoms on black raspberries (Rubus occidentalis L.). The name black raspberry necrosis is proposed for the disease and virus. The virus is transmitted by the aphid Amphorophora rubi Kalt. It may be acquired by the aphid after a half-hour feeding and transmitted with a two-minute transfer feeding. Most aphids lose their ability to transmit the virus within one and a half hours after leaving the source of inoculum.


1958 ◽  
Vol 36 (3) ◽  
pp. 385-388 ◽  
Author(s):  
Richard Stace-Smith

A ring spot mottling that occurs on the wild thimbleberry (Rubus parviflorus Nutt.) in British Columbia was proved to be caused by a virus. The virus was transmitted to thimbleberry, black raspberry (R. occidentalis L.), red raspberry (R. strigosus Michx.), and R. henryi Hemsl. & Kuntse. Three species of aphids belonging to the genus Amphorophora transmitted the virus, but the large raspberry aphid (A. rubi Kalt.) was not a vector. The name "thimbleberry ring spot" is proposed for the virus and the disease.


1957 ◽  
Vol 35 (3) ◽  
pp. 287-290 ◽  
Author(s):  
Richard Stace-Smith ◽  
Frances C. Mellor

By means of the leaf-grafting technique, attempts were made to transmit the two component viruses of raspberry mosaic, rubus yellow-net, and black raspberry necrosis, separately and in combination, to three strains of Fragaria vesca L. Only the rubus yellow-net virus was transmitted to the strawberry and it induced severe symptoms. Neither the raspberry aphid, Amphorophora rubi Kalt., nor the strawberry aphid, Pentatrichopus fragaefolii (Ckll.), transmitted the yellow-net virus from raspberry to strawberry, although A. rubi was able to transmit the virus from strawberry back to raspberry.


1955 ◽  
Vol 33 (3) ◽  
pp. 269-274 ◽  
Author(s):  
R. Stace-Smith

A virus disease occurring on Himalaya blackberry (Rubus procerus P. J. Muell.) was transmitted to Washington red raspberry (R. strigosus Michx.), tropical black raspberry (R. albescens Roxb.), and North American black raspberry (R. occidentalis L.). A net-like chlorosis of the tissue bordering the smaller leaf veins is the characteristic symptom, consequently the name "Rubus yellow-net" is proposed for the virus and disease. The virus is transmitted by the raspberry aphid Amphorophora rubi Kalt. It may be acquired by the aphid after a one-hour feeding and usually persists in the vector less than four hours.


1956 ◽  
Vol 34 (4) ◽  
pp. 435-442 ◽  
Author(s):  
Richard Stace-Smith

It has been shown that the mosaic disease of red raspberry is the result of multiple infection by two separate viruses. Since these viruses, tubus yellow-net and black raspberry necrosis, have a common, vector, the aphid Amphorophora rubi Kalt., and are both nonpersistent, they are usually transmitted together and the complex nature of the mosaic disease can best be demonstrated by synthesis.


Author(s):  
Mariana Radulović ◽  
Irena Mavrič-Pleško ◽  
Francois Maclot ◽  
Duska Delić ◽  
Sebastien Massart

2018 ◽  
Vol 173 (2) ◽  
pp. 97-111 ◽  
Author(s):  
H. Susi ◽  
M.L. Rajamäki ◽  
K. Artola ◽  
F.R. Jayaraj-Mallika ◽  
J.P.T. Valkonen

2004 ◽  
Vol 9 (4) ◽  
pp. 557-565 ◽  
Author(s):  
Adrienne Goodrich ◽  
Zahida Parveen ◽  
Ralph Dornburg ◽  
Matthias J Schnell ◽  
Roger J Pomerantz

1980 ◽  
pp. 71-76
Author(s):  
F. C. Mellor ◽  
R. Stace-Smith

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