Please go to the Forum threads that deal with the FUNGUS Trichoderma and its various manifestations such as granules, dowls, water-on etc. This fungus, if a little is dug into the planting space of any Clematis, will totally prevent the introduction of Clematis wilt. Yes, it really will. I used to lose 3 of every 5 of the large-flowered hybrids that I planted, to wilt. Since using Trichoderma, available world-wide now under various trade names, I have not lost even one and from that time I suppose I've planted 50 at least. I use about a tsp of the granules, available here (NZ) as Plant-Mate or Root-Mate among other names and just sprinkle it into the planting hole and mix with the soil as it is replaced around the rooted at planting time.
Three dowls hammered into centimetre-wide holes drilled in our 'Wiggins' peach tree, have totally cured the leaf curl from which the peach has suffered since first planted about 8 years ago. We dug and moved it last year to bring with us and this last spring was the third since the dowl placement. We had a little leaf curl at the top spring before last but not a sign of it the spring of 2013 or though the summer until leaf fall. We don't expect any this coming spring either.
