Never could understand how a copper product could be described as organic.
I have also recently heard about the aspirin. Have not tried it but sounds worth a go. We suffer very badly, and no one removes the dead and dying plants. Though funnily enough the plants survived in all the rain earlier in the year. Got a good crop of potatoes.
Anyone who thinks copper in gardening quantities is an effective poison for anything except fungal spores is making a very similar case to the
http://www.dhmo.org/facts.html site - an essential read that warns of the dangers of Dihydrogen Monoxide - which is far more worrying - I try to avoid it in its pure state.
Copper is an essential trace element (especially for mammals - the easiest source is sold as a food additive to improve the health of cattle, pigs etc.). Gardening quantities/concentrations only exceed this if you eat the whole plant (solanine in tomato/potato plants will kill you first) and even then only if you can eat something as incredibly bitter as copper. Just touching your tongue to a coin can spoil your day.
If you can actually see the blue film on a tomato fruit you can polish it off in a second (yes you should wash wrinkly varieties) and you will taste nothing. Compare that with Dithane where the whole fruit tasted of rotting cabbage.
Copper has been used against blight since the 1840s (found by accident) and is still not banned - just unavailable.
There isn't a single man-made 'cide of any kind that's lasted 1/10th as long - they have all been banned , and everything available today is unlikely to see out the decade - then they will be allowed to sell something new which will also be banned - and so ad infinitum.
None of them were any safer when they came out - and they are just as unsafe now as they will be when they are banned.
Cheers.
PS. I speak as someone who loves science - but there just isn't enough of it about (plenty of imitations though) - the first casualty of conflict is truth, the first casualty of commerce is science.