Answer: Unfortunately, blight can survive in diseased foliage. The decaying/compost process alone isn't enough to kill it unless you can ensure that an extremely "hot" pile heats up ALL of the organic matter (so you'd have to turn it several times to get all material in the center) to a temperature of 140-160 degrees F for several days. I love a good pile of organic matter also, but I wouldn't want to take a chance. You're in a state with lots of leaves (many people are happy to have somebody haul them away) and barnyard animals (same thing with manure!) I'd start over. Also, be sure to clean off your tools, equipment, etc.
As you probably know, blight spores splash up from the soil onto the plant. Mulching with clean, dry straw can help prevent it, especially during warm, wet weather when it thrives. Good luck with your new location.
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