|Yes, but it will take alot of time if its just by itself. The pile of vegetation can break down but the logs are a different matter.
The OILS DO NOT EVAPORATE and can remain active for a year or longer after being picked up on tools, clothing, animal fur, etc.
-Only 1 nanogram (billionth of a gram) needed to cause rash
-Average is 100 nanograms for most people
-1/4 ounce of urushiol is all that is needed to cause a rash in every person on earth
-500 people could itch from the amount covering the head of a pin
-Specimens of urushiol several centuries old have found to cause dermatitis in sensitive people.
-1 to 5 years is normal for urushiol oil to stay active on any surface including dead plants
-Derived from urushi, Japanese name for lacquer