Allotment Gardening Advice Help Chat

Growing => Grow Your Own => Topic started by: Lee G on July 17, 2009, 21:30

Title: Can anyone help I.D this potato leaf problem?
Post by: Lee G on July 17, 2009, 21:30
I found a couple of leaves like this when I went down the plot this evening and cannot find any pictures on t'internet to help me identify what it might be, does anybody here have an idea and should I be worried???

(http://chat.allotment-garden.org/gallery/5203_17_07_09_8_22_41.jpeg)
Title: Re: Can anyone help I.D this potato leaf problem?
Post by: aelf on July 17, 2009, 21:40
looks like natural die-back to me. The plants are coming to the end of their life. How are the potatoes? and what type are they?
Title: Re: Can anyone help I.D this potato leaf problem?
Post by: Lee G on July 17, 2009, 21:44
looks like natural die-back to me. The plants are coming to the end of their life. How are the potatoes? and what type are they?

They are Kestrel, planted 19th April, so they've been in the ground nearly 13 weeks, but I was under the impression they'd be in 18 weeks.
Title: Re: Can anyone help I.D this potato leaf problem?
Post by: titch on July 17, 2009, 21:45
a lot of mine look like that too - so what do we do with them - cut the haulms and leave in the ground or dig up and store??

Title: Re: Can anyone help I.D this potato leaf problem?
Post by: Libby on July 17, 2009, 21:59
I had that on all of my Kestrel plants.  After checking on some previous threads I took it that it was likely to be a magnesium defficiency.  I treated with epsom salts but I think I left it too long to administer the treatment and it got worse very quickly.  A friend on the plot advised that I should cut the plants down and dig the potatoes up as and when I wanted and when the row was empty, treat the soil with epsom salts and then add home made compost over the autumn which should sort it for next year.  I treated my Cara row at the first sign of these leaves and it seems to be much better now.
Title: Re: Can anyone help I.D this potato leaf problem?
Post by: aelf on July 17, 2009, 22:03
they are earlies so time to lift them. Pick a dry day (ha!), dig them up and let them dry off for a couple of hours in the fresh air then store in paper or hessian sack. You can leave them in the ground and dig them up as you need them but you then risk loosing some to the slugs.
Title: Re: Can anyone help I.D this potato leaf problem?
Post by: Lee G on July 17, 2009, 22:10
they are earlies so time to lift them. Pick a dry day (ha!), dig them up and let them dry off for a couple of hours in the fresh air then store in paper or hessian sack. You can leave them in the ground and dig them up as you need them but you then risk loosing some to the slugs.

Second earlies officially, so was hoping to leave them to mature as a maincrop, which is sort of what I did last year (my first), however I planted them mid May then so they never reached the 18 week point.

Re the slugs, they are pretty resistant to them - not 100%, but much more so than the Wilja I also grew last year.

I might dig one up to see what sort of size they have reached.  Thanks for the feedback though.
Title: Re: Can anyone help I.D this potato leaf problem?
Post by: Muddylou on July 17, 2009, 22:17
I planted Kestrel as earlies, the variety I'd wanted to plant had run out in our allotment shop. Most of my tops leaves look like yours, I'm digging them all up this weekend and hoping for a decent crop.
Title: Re: Can anyone help I.D this potato leaf problem?
Post by: goodegg on July 22, 2009, 20:26
magnesium deficiency treat with trace element spray but to late for your kestrels as they are ready to dig anyway :( :( eddie