20-04-2015 22:14
Bernard CLESSESur bourgeon de Rhododendron. Je suis pratiquement
19-04-2015 22:11
Bernard CLESSEBonsoir à tous,Trouvé il y a quelques jours ce c
19-04-2015 14:10
Steve ClementsHymenoscyphus? with mould on barkHi,This stalked d
19-04-2015 16:53
Alessandro FellinHiI am looking for the monograph of Donadini, spec
11-04-2015 15:25
Ralph VandiestHello, I found this geopora in S'albufera (ES). A
08-04-2015 14:00
Stoykov DimitarHere are the photos of Plagiostoma salicellum (F.
19-04-2015 21:20
Marcel VegaHi,if anybody has one of the following articles I'
Conidies variables de forme : ellipsoïdes, subglobuleuses, citriformes, fusoïdes… : 5,5-11x5-5,5
Bernard
Dear Bernard,
your determination is correct. The species is quite common on cultivated Rhododendron and is transfered by the cicada Graphocephala fennahi (which is quite beautiful!).
Regards from Lothar
Thank you for your confirmation, to update the name of the fungus and the name of the cicada responsible for the appearance of the fungus!
Sincerely,
Bernard
Hello All,
Looks like this disease of Rhododendrons is spreading. It occurs regularly each year on a hybrid shrub in our garden in North Argyll, Scotland.
What is a puzzle, is what is the transmission agent as we are definitely not within range of Cicadas!
Kind regardes,
Peter
We're in range - Graphocephala fennahi (Graphocephala coccinea) is a leafhopper related to cicada's: http://scholar.lib.vt.edu/ejournals/JARS/v34n4/v34n4-wheeler.htm
And yes, a very distinctive looking beastie!
With regards,
Jenny