[djbnat]

After having a fairly decent crop from a young plum tree last year (its first full year in the ground) this year it has only set about a dozen fruits.  Additionally many of the young leaves on the new growth are crinkled up and not opened out flat  :cry:   Is there a problem here please?
Regards
DJB

[WG.]

Aphids cause leaf curl on plums.  Any visible signs??

[djbnat]

Thanks WG.  I did suspect this and checked a couple of the leaves but no sign.  Maybe I need a more thorough look.
Regards
DJB

[WG.]

Try this (american) site : http://www.ipm.ucdavis.edu/PMG/r611301811.html

[djbnat]

Thanks WG - the photographs on that link show exactly what the leaf curl looks like, so a good steer - I will have a more detailed look for them tonight and treat accordingly.  Will a soap solution work or will it need something nastier?
Regards
DJB

[WG.]

I'm the wrong person to ask about nasties  

My reading of it is that the aphids will have moved off by now anyhow.

[slow_worm]

Aphids cause leaf curl on plums.  Any visible signs??

Agree!
Some years it can be bad... affected my damson tree a couple years ago...depends on weather and frosts can make you loose blossom

[slow_worm]

Aphids - become winged in May and migrate of one plant to another host species.

[djbnat]

Thanks all - I think it all fits - aphids looks like the issue here  :cry: , I did have plenty more blossom than fruit that has set and as you say, the problem may have now 'moved on'.  I need to be more aware next year - but hey, that's what this forum is all about   .
Regards
DJB