Scottish Rock Garden Club Forum

Plant Identification => Plant Identification Questions and Answers => Topic started by: Anthony Darby on November 06, 2016, 06:24:16 AM

Title: Weird succulent leaf structure on a hedge
Post by: Anthony Darby on November 06, 2016, 06:24:16 AM

I saw these strange shoots on a hedge at King's College, Auckland on Saturday. I think the hedge was a species of Camellia. Could this be caused by a fungus?

Title: Re: Weird succulent leaf structure on a hedge
Post by: Hoy on November 06, 2016, 09:54:08 AM

Could be infection of Exobasidium.

Title: Re: Weird succulent leaf structure on a hedge
Post by: ian mcdonald on November 06, 2016, 12:48:03 PM

Hoy may be right. Are there any insects under the leaf? It could also be a gall, similar to that on Box, caused by Spanioneura buxi. Also similar to the gall on Elm, caused by Eriosoma lanuginosum. Many gall causing insects are more or less specific to certain plant hosts.

Title: Re: Weird succulent leaf structure on a hedge
Post by: Anthony Darby on November 07, 2016, 01:43:15 AM

I think Exobasidium sp. is correct. Looks like this http://www.walterreeves.com/gardening-q-and-a/azalea-and-camellia-leaf-gall/ (http://www.walterreeves.com/gardening-q-and-a/azalea-and-camellia-leaf-gall/)