Strawberries are dying

[b0oDy]

Hi all, I bought different sets of strawberries plants of different varieties and pot them on. They are staying in unheated GH with plenty of sun. Recently a single variety Korona started to have a couple of leaves dying and they look like burnt. It starts from the edges of the leave and goes all the way to centre. Other Korona which I haven't potted them yet seems healthy. I'm wondering what I'm doing wrong. Also should I start to feed them when the first flower come on, or that could be when the first fruit appears?

Appreciate your advice.

[muddled]

sorry, I don't know the answer but untill someone comes along who does, I would suggest getting them out of your greenhouse in case its one of the contagious 'wilt' viruses.

In the meantime things to think about are; could they be burnt....greenhouses can get suddenly very hot on sunny spring days
Pests, have a look at the roots of one....are there weevils or maggots in there?

[Bigmallly]

Looking at the first pic, there is new growth so nothing wrong with the plant, I'd just cut off the damaged leaf & see how it goes. I think it's too big to be this years growth so maybe it's just one of last years giving up the ghost.

[lookbettertomorow]

Greenhouses, blah, too hot in summer too cold in winter. Take them out of the hot house, they are outdoor plants - or an opaque tunnel. They will get red spider mite in a greenhouse, too hot too dry too horrible. That leaf is last years, it is history. Do watch out for vine weevil though, I always use old compost - I just can't help it, I know we shouldn't but I do :-) Still using the same soil in the veg plot

[MarkPelican]

I think these are last years leaves giving up the ghost as new growth comes. However, I also agree that you should get them outdoors as soon as possible. I find greenhouses are difficult at this time of year as the temperature fluctuates wildly.

I assume you are growing them in pots rather than in the ground if you want to feed them. I don't grow strawberries in pots because I've enough space to grow them at the allotment in the ground so my feeding is a top dressing of BFB in spring.

[b0oDy]

Thanks all for taking the time to respond. I've checked the roots and no maggots there. I'm using self-watering pot and I noticed the compost is over wet so I will hold of filling the reserve for a while.

I will take your advise and put them out of the GH as I noticed this started when one day the temp. went about 40 C and I wasn't sure if this could be due to heat or sunshine.

Thanks again everyone for your help.

[Nicos]

Keep us updated will you?
Always interesting to see his things progress..
Hopefully you've now got it sorted

[rhyswales]

Yeah as mentioned above these look like old leaves rather than a disease