Allotment Gardening Advice Help Chat

Growing => Grow Your Own => Topic started by: mickleuk on June 15, 2009, 21:02

Title: Potato problem
Post by: mickleuk on June 15, 2009, 21:02
Hi All,

I'm new here and new to the world of allotments.

I have some potatoes and the leaves are curling up really tightly. I have found a bit of info on potato leafhopper, but I'm not too sure if it is this, and if so, what to do about it.

Any info would be gratefully accepted, and by the way, it probably won't be the last question I ask  :)

Cheers

Mike
Title: Re: Potato problem
Post by: Yorkie on June 15, 2009, 22:35
Welcome to the site Mike, and we like questions  :D

Do you have piccies of the leaves?

http://chat.allotment-garden.org/index.php?topic=19476.0

Had you applied manure to the area?

I'm not familiar with the leafhopper so can't advise specifically on that I'm afraid
Title: Re: Potato problem
Post by: mickleuk on June 15, 2009, 22:44
Hi,

I've been scanning through earlier posts and came across one about contaminated manure. The photo of the potato leaves on there were exactly like mine, very curled up. The allotment where I am, had lots of bags of chicken manure dropped off and I dug a lot of it in. I'm sure that's what it is.

How long does it last in the soil?

Feeling a bit cheesed off now  >:(

Cheers

Mike
Title: Re: Potato problem
Post by: Yorkie on June 15, 2009, 23:13
Have a look at the various articles and bits of info here (http://www.allotment-garden.org/garden-diary/321/testing-for-aminopyralid-in-manure/)

I am a little surprised at chicken manure being the cause, though - previously it's only been horse or cow manure, as they are more likely to have either eaten or had bedding made from affected grass.

Can you run a check on the soil by growing test beans - see what the leaves do by about the 4th pair of leaves (it takes till then to show itself)?

If it is aminopyralid damage, the quickest way of getting rid of it is to rotavate / dig it, as it breaks down through exposure to something in the soil - don't just leave it stacked up, as that will take a lot longer.

Also remember that not all plants are affected by it, and any produce is said to be eatable - that's then a matter of personal judgement whether  you choose to eat or grow immediately on that land.
Title: Re: Potato problem
Post by: mickleuk on June 16, 2009, 08:52
The chicken manure contained a lot of straw, which I assume makes some difference. The photo's of the potatoes and beans here,
http://www.allotment-garden.org/garden-diary/261/contaminated-manure-aminopyralid-update/
are identical to mine. so it looks like I've found the culprit.

The thing is, what do I do now?

Title: Re: Potato problem
Post by: steve49a on June 22, 2009, 09:09
Hi Mike

I would be surprised that chicken manure has residues of weedkiller.  Up to now it has only been associated with horse and cattle manure.  The presence of straw will not make any difference as the chemical is only used on grass. 

http//www.manurematters.co.uk  will provide you with more details

Steve


Title: Re: Potato problem
Post by: JWK on June 22, 2009, 12:14
The thing is, what do I do now?

I've never heard of chicken manure being contaminated with aminopyralid either, but you could check with glallotments who is the focal point for all these aminoppyralid problems, here is her list of 2009 victims: http://www.glallotments.btik.com/p_Victims_2009.ikml (http://www.glallotments.btik.com/p_Victims_2009.ikml), its worth contacting her in case she knows of any similar cases.
Title: Re: Potato problem
Post by: Yorkie on June 22, 2009, 18:22
I would be surprised that chicken manure has residues of weedkiller.  Up to now it has only been associated with horse and cattle manure.  The presence of straw will not make any difference as the chemical is only used on grass. 

Although conceivably the presence of straw will make a difference if the grass was treated with herbicide before becoming straw ?

Title: Re: Potato problem
Post by: celjaci on June 22, 2009, 19:16
I would be surprised that chicken manure has residues of weedkiller.  Up to now it has only been associated with horse and cattle manure.  The presence of straw will not make any difference as the chemical is only used on grass. 

Although conceivably the presence of straw will make a difference if the grass was treated with herbicide before becoming straw ?


Straw is the dried stalks and leaves of cereals ( wheat, oats or barley)

Hay is dried grass

It seems the herbicide has been used on grass not on cereal crops
Title: Re: Potato problem
Post by: Yorkie on June 22, 2009, 19:26
Well  there you go, you learn something every day  :D

Thanks celjaci