Photo's of bacterial disorders and insect damage: species ID?

[hesslemount]

Poplar scab, Venturia populina, is fungal isn't it? If so then it cannot be as it's a photo labelled as a bacterial infection.

[Tony Croft aka hamadryad]

Blimey O'Rielly, look what only goes and happens when you put 'Poplar' in to Arbtalk's search function

 

It only goes and gives you info on the Poplar 'Hornet' moth

 

http://arbtalk.co.uk/forum/tree-health-care/41768-poplar-hornet-moth.html

 

 

Who would of believed it

 

 

.

 

Thats cool, but cooler still when you know off

the top of your head!

[hesslemount]

Thats cool, but cooler still when you know off

the top of your head!

 

"There is no limit to what can be accomplished when no one cares who gets credit." - John Wooden

 

So we still have a couple of anomalies but answers will be revealed on marking. No 1 and No 2. No 1 is ash canker OR bacterial canker of poplar and 2 has to be bacterial so can't be poplar scab which is fungal. The photo quality ain't great but what brings you to ash canker and not polar bacterial canker, Xanthomas populi ?

[Tony Croft aka hamadryad]

Newly recognized bacteria involved in trunk scab and canker of white and hybrid poplars - Fabi - 2008 - Forest Pathology - Wiley Online Library

 

A bacterial canker Xanthomonas populi

 

as for 1, doe sit looklike a poplar?

[MATTMOSS]

I think No 5 could be Cinara cupressi vora = cypress aphid

[Tony Croft aka hamadryad]

I think No 5 could be Cinara cupressi vora = cypress aphid

 

there you go! somebody had to have the name handy!

[hesslemount]

So is it now that Poplar Scab is a bacterial disease as highlighted upon in the article sent by Tony Croft and not caused by Venturia populina as is usually thought? My tutor assures me that photo 2 IS bacterial so is Poplar Scab as reasonable assumption to a correct answer? If so thanks for pointing out that it is indeed a bacterial disease to which I was unaware of. Maybe my literature is a little behind with the times :-). Thank you all for your help & discussion and yes Tony on closer inspection I concur with Photo 1 ;-) but the photo looks very pixelated from my side to say the least. Thanks all ;-)