AusBonsai

I know photos are not that good but could you please help my friend id this plant. These are all the photos i can provide. Thanks in advance for the id.. i know you can do it

We need more pics or an explanation. I don't see anything.

apple?

Alder?

Gavin

The bark definitely looks like a prunus as do the leaves but what sort would be anyone's guess. There are only 99 squillion varieties.

I think Gavin is on the money: maybe Alnus glutinosa

Roger

When I looked at the title of this post I read ''Help id my friends disease''

Looks like an apple

Both the dark-ish colour of the bark & shape of the leaves look very much like Alder to me as well.

If it is, I've found them quite hard to ramify, as they never shoot enough secondary branches when pruned. A lot of the time just continue to grow one long single branch from the cut site (which seasons later could completely shrivel & die off for no apparent reason)
I used to also get semi-circular chew marks on the margins of the fresh open leaves. Initially thinking it was caterpillar, but later found out was wasps chewing the leaves and rolling the pieces into small cones - then flying off with them, to do whatever wasps do?

I used to also get semi-circular chew marks on the margins of the fresh open leaves. Initially thinking it was caterpillar, but later found out was wasps chewing the leaves and rolling the pieces into small cones - then flying off with them, to do whatever wasps do?

That actually sound like a leaf cutter bee. They are native bees and unlike the honey bee are solitary. A single female collects leaf segments and takes them to line a nest for her larvae.
Here are a couple of sites FYI:
[url][/http://www.aussiebee.com.au/leafcutter_bee.htmlurl]
[url][/http://www.qm.qld.gov.au/Find+out+about ... 4NIUmUkurl]

Hi shibui,
Yep, that's them - Thanks for the info. I thought they were wasps. I now know about native leaf cutter bees.
A bit off topic - but what a great site this is.