“…They comprise the fungicides promocarb, tebuconazole, propiconazole and tolylfluanid, the neonicotinoid insecticides imidacloprid, bifenthrin and hexythiazox. In the late 1970s and early 1980s, paraquat residues were found on confiscated cannabis samples [7][8][9][10][11][12][13]. Recently paraquat, together with other herbicides such as glyphosate and aminomethylphosphonic acid were detected on illicit cannabis samples from unknown origin in Brazil [14].…”