Recently, a lawsuit was filed by a medical marijuana user in Colorado against LivWell Inc., which operates one of the largest grow houses in the world. The company also own several medical marijuana shops in Colorado, the state legalized recreational marijuana use last year.
According to a report by the LA Times, Colorado quarantined 60,000 pot plants from LivWell last April, to check for Eagle 20 residue. Low levels of the chemical were found, and the hold was lifted.
This month, Denver health officials quarantined marijuana plants to check for traces of unauthorized pesticides.