[realfood]

According to "Which", who noted distorted leaves and flowers on tomato plants when they were using the B & Q Organic Living Tomato Food product, laboratory testing showed the product was contaminated with the herbicide "clopyralid". This is a powerful herbicide licensed to be sprayed on grass including lawns.
A possible route for contamination could be that the manufacturer of the "organic" fertilizer, bought in grass clippings that had been sprayed with "clopyralid", and used them in the manufacturing process.

This highlights the danger of using "clopyralid" on home garden lawns. Any grass clippings used as mulch or compost will cause the same damage to sensitive edible plants. Make sure that you read the label very, very carefully before you apply any chemicals to your lawn!

[mumofstig]

Ami right in thinking that this is from the same chemical family as Aminopyralid then

[realfood]

I believe so, but from what I have read, it is not quite so persistent.

[Chiswickian]

very organic. Not.

[Christine]

There's a very good article from the composting association which gives a great amount of information on both products.

I know that John here has detailed his problems and given advice on aminopyralid too.

It's a great shame when organic methods are damaged inadvertently by chemicals isn't it?

[Walewein]

this explains a lot! Tomatoes at work have been fed using this, we had contaminated manure but I thought OI had removed it all and couldn't work out why the plants had started to be effected in the last two weeks.

[scousemouse]

I've used a bottle of this on our tomatoes this year.  I've not noticed any problems and the tomatoes are ripening fine, but one or two plants have purple (I think - I'm colour blind on the red/green spectrum - a bit inconvenient in gardening lol) leaves.  The plants seem ok but I don't want to eat tomatoes that might have a herbicide in them.  Does the Which article give batch numbers?

*panics*

[Walewein]

Our plants only started show signs in the last couple of weeks on side shoots I had missed. I am sure it is the tomato feed as I can't think of anything wlse that wouldn't effedct them till now. I think I saw them using the same feed on Gardener's World