[Primrose-Prickle]

Can anyone advise me on what could be the problem with my Raspberries belived to be Autumn Bliss.  Planted last year and produced a small amount of fruit.  Cut to the base and mulched. This years growth looks strong and healthy now about 9 inches high but the leaves are yellow. Can anyone advise on what could be the cause and or remedy?
 

[Yorkie]

Welcome to the site 

Have you put any fertiliser down?

What did you mulch with?

[Beetroot queen]

A dose of Epsom salts will have them back to green.

Welcome to the site

[allotmentann]

Just a thought, but have either you or a plot neighbour been spraying weed killer? A plot neighbour has sprayed the couch between their plot and one I help on. I noticed the couch looking suspiciously dead and then saw that all the raspberries nearest the fence in front of it have gone very, very yellow, so the spray must have drifted over. I am pretty cross. But it definitely turns the leaves very yellow.

[Primrose-Prickle]

Thank you for all the advice. 
No I have not used any feed and the mulch was chipped bark which I have used on other fruit with no detrimental effect.
 I will try the epsom salts but what dilution rate would you recommend?
I hadn't thought about weed killer but I am 3 allotments down from the allotment shop and the site manager has put notices up that a spray has been used all around that area.  If it is the spray then you would think it would effect other plants as well but It only seems to be the raspberries that have the bright yellow leaves.

[allotmentann]

It is only the raspberries that have caught it on this plot even though there are strawberries in the same bed. I thought I had an article somewhere saying that raspberries are particularly susceptible to glyphosate, but I can't find it anymore.
Let's hope that the Epsom Salts picks them up.

[Kirpi]

It is only the raspberries that have caught it on this plot even though there are strawberries in the same bed. I thought I had an article somewhere saying that raspberries are particularly susceptible to glyphosate, but I can't find it anymore.
Let's hope that the Epsom Salts picks them up.

I can vouch for that - last year I treated some bindweed that had settled in my raspberry bed with glyphosphate. Even just touching the odd raspberry leave by mistake and keeping the weedkiller on the bindweed with a small spary bottle and most of last years' tie-ins have died and even this year's new growth is looking sick.

That was just the odd drop of glyphosphate touching a few raspberry leaves so wind-drift could possibly kill them right off, I think.

[Salmo]

It is only the raspberries that have caught it on this plot even though there are strawberries in the same bed. I thought I had an article somewhere saying that raspberries are particularly susceptible to glyphosate, but I can't find it anymore.
Let's hope that the Epsom Salts picks them up.

I can vouch for that - last year I treated some bindweed that had settled in my raspberry bed with glyphosphate. Even just touching the odd raspberry leave by mistake and keeping the weedkiller on the bindweed with a small spary bottle and most of last years' tie-ins have died and even this year's new growth is looking sick.

That was just the odd drop of glyphosphate touching a few raspberry leaves so wind-drift could possibly kill them right off, I think.

I have eradicated creeping thistle in my raspberries very effectively using glyphosate as Roundup Gel. Expensive, but it lasts ages and does not drip. One click and a little more gel oozes out. Wipe it on the leaves.

My Autumn Bliss always look yellow as they start to grow fast. Epsom salts will turn them green but this will probably happen naturally if you leave them.