How does the persistence of urushiol in soil generally compare to that of widely used broad-spectrum synthetic herbicides?

Answer

Urushiol potentially persists for significantly longer periods

The substance causing rashes from poison ivy, urushiol, has been observed to remain in the soil for periods potentially spanning several years, contrasting sharply with many common synthetic herbicides.

How does the persistence of urushiol in soil generally compare to that of widely used broad-spectrum synthetic herbicides?
environmentpersistencesoildegradationtoxin