Derris Dust

[Compo]

According to this months KG Magazine Derris Dust is organic? Is this true?

[bigpepperplant]

that's what I've always been told

[Sue]

Yup it is - active ingredient is rotenone which I believe is a plant extract from the tropics. Non-selective pesticide though, so organic but will kill your friends as well as your pests

Sue

[Johnboy]

Hi Compo,
An informative fact sheet.
www.pan-uk.org/pestnews/Actives/rotenone.htm
I know that it was on the Organic list but I read a long time ago that they were to phase it out because although it may be organically derived it is not as safe as it was once thought.
Hope this assists.
JB.

[Iain]

Don't know if this helps, but I remember, back when the world was young (and politically incorrect), we used liquid derris to poison the coarse fish in the loch prior to stocking it with trout. That was with scientific supervision! Memory horrifies but then it was just spectacular and fascinating.

I.

[mandylew]

Iain, do you know loch rusky near Calendar? I spent all my holidays there when i was a wee lass. No coarse fish as far as I remember, brown trout.

Mandy

[Iain]

Hi Mandylew, I p.m.ed you.

Iain.

[Compo]

Hmm having read this website, I am not so sure about it now, will stick to my plan of building brassica frame nets for the control of the cabbage white caterpillar me thinks.