Search found 11 matches

by poschiavanus
Wed Oct 17, 2018 4:36 pm
Forum: Rusts, Smuts, and Mildews
Topic: Distribution of European Pear Rust
Replies: 1
Views: 325

Distribution of European Pear Rust

I had a conversation last week about how European Pear Rust (Gymnosporangium sabinae) has apparently become much commoner in Cambridge over the past 2-3 years In Notts I've tended to find it whenever I've come across a pear tree, and similarly in Berkshire. It so happens I have two or three records ...
by poschiavanus
Sun Oct 04, 2015 9:29 am
Forum: Rusts, Smuts, and Mildews
Topic: Rhytisma ulmi?
Replies: 3
Views: 1607

Re: Rhytisma ulmi?

Hi Jenny,

Chris wrote a really informative piece of this a few years ago on WAB: IIRC in response to a query of mine very similar in tenor to yours. One of the biggest losses are many of these in-depth answers from Chris.
by poschiavanus
Wed Sep 09, 2015 6:28 pm
Forum: Rusts, Smuts, and Mildews
Topic: Phragmidium rosae-pimpinellifoliae I think..
Replies: 3
Views: 1439

Re: Phragmidium rosae-pimpinellifoliae I think..

There was rust on more or less every plant of Burnet Rose in Northern Ireland in June (White Sands Bay, The Umbra, Binevenagh). I've assumed this was Phragmidium rosa-pimpinellifolia, but not sure that my records have been accepted by the NI Fungus recorder. (That being said I managed a few new VC r...
by poschiavanus
Mon Sep 07, 2015 12:28 pm
Forum: Rusts, Smuts, and Mildews
Topic: Rust on daisies
Replies: 3
Views: 1097

Re: Rust on daisies

These days it's most likely to be Puccinia distincta, see the sections written by Brian Spooner in the FSC Plant Gall book. There was an epidemic of this rust in the 1990s (see http://www.sciencedirect.com/science/ar ... 6208610138).
by poschiavanus
Tue Jul 28, 2015 3:37 pm
Forum: Wildflowers
Topic: Thyme-leaved Speedwell growing on rock
Replies: 5
Views: 2395

Re: Thyme-leaved Speedwell growing on rock

It self-seeds from the lawn very well amongst the brick pavers of our driveway, so why not on rocks!
by poschiavanus
Mon Jul 27, 2015 3:44 pm
Forum: Rusts, Smuts, and Mildews
Topic: Urocystis ranunculi?
Replies: 5
Views: 1800

Re: Urocystis ranunculi?

It's a gall causer. Had it at Burroughs Wood (VC55) https://www.flickr.com/photos/mausboam/14991477619 and (in your neck of the woods) Tandle Hill Country Park (VC59) last September.
by poschiavanus
Mon Jul 27, 2015 12:08 pm
Forum: Rusts, Smuts, and Mildews
Topic: A common smut to look out for
Replies: 2
Views: 1051

Re: A common smut to look out for

I note my records in SK53 aren't on NBN. I've found it several times at Attenborough Nature Reserve, and on one occasion measured the spores after and NFG Foray.
by poschiavanus
Sat Jul 25, 2015 6:10 pm
Forum: Rusts, Smuts, and Mildews
Topic: Identification Guide for Mildews?
Replies: 12
Views: 3368

Re: Identification Guide for Mildews?

I hope people reading this thread might already be aware of the Powdery Mildew project run by the University of Reading. If not, here's the link http://blogs.reading.ac.uk/crg/powdery- ... rvey-2015/

Posch
by poschiavanus
Sat Jul 25, 2015 5:58 pm
Forum: Ascomycetes
Topic: Taphrina pruni on Blackthorn
Replies: 3
Views: 1491

Re: Taphrina pruni on Blackthorn

It's actually quite rare for the wizened 'pocket plums' to stay until the Autumn: diligent searching will usually reveal one or two. Taphrina pruni in my experience is much commoner on Prunus cerasifera Cherry Plum appearing almost immediately after flowering (mid-April onwards). The fungus causes t...
by poschiavanus
Sat Jul 25, 2015 1:32 pm
Forum: Fungi ID requests (post here if you aren't sure what type of fungus you've found)
Topic: A smut or other fungus on Goat Willow?
Replies: 1
Views: 891

Re: A smut or other fungus on Goat Willow?

This looks like a set of galls caused by the midge Iteomyia capreae . See http://www.bladmineerders.nl/gallen/dip ... apreae.htm (rapidly becoming most useful site for galls as well as leaf mines). PS. For former WABbers, yes it is me (how not with nature of post). Will probably mainly lurk & be v. ...