Understanding Cannabis Testing

Pesticide Screening

The Emerald Test (Pesticide Screening)

Pesticide Screening


The US Environmental Protection Agency (EPA) has not sanctioned any pesticide for use on marijuana. Even so, there have been documented reports of cannabis samples containing pesticides. Pesticide residue inhaled through dried forms of cannabis may enter the bloodstream or can be absorbed by consuming the plant.

We employ ultra high performance liquid chromatography with triple quadrupole mass spectrometry (UHPLC-MS/MS) as well as gas chromatography with mass spectrometry (GC-MS) to accurately detect and measure trace amounts of chemical pesticides. Presence of the following pesticides shall not exceed 1.0 ppm:

Analyte Chemical Abstract Services (CAS)
Abamectin 71751-41-2
Acephate 30560-19-1
Acequinocyl 57960-19-7
Acetamiprid 135410-20-7
Aldicarb 116-06-3
Azoxystrobin 131860-33-8
Bifenazate 149877-41-8
Bifenthrin 82657-04-3
Boscalid 188425-85-6
Carbaryl 63-25-2
Carbofuran 1563-66-2
Chlorantraniliprole 500008-45-7
Chlorfenapyr 122453-73-0
Chlorpyrifos 2921-88-2
Clofentezine 74115-24-5
Cyfluthrin 68359-37-5
Cypermethrin 52315-07-8
DDVP (Dichlorvos) 62-73-7
Diazinon 333-41-5
Dimethoate 60-51-5
Ethoprophos 13194-48-4
Etofenprox 80844-07-1
Etoxazole 153233-91-1
Fenpyroximate 134098-61-6
Fipronil 120068-37-3
Flonicamid 158062-67-0
Fludioxonil 131341-86-1
Hexythiazox 78587-05-0
Imazalil 35554-44-0
Imidacloprid 138261-41-3
Kresoxim-Methyl 143390-89-0
Malathion 121-75-5
Metalaxyl 57837-19-1
Methiocarb 2032-65-7
Methomyl 16752-77-5
Methyl Parathion 298-00-0
MGK-264 113-48-4
Myclobutanil 88671-89-0
Naled 300-76-5
Oxamyl 23135-22-0
Paclobutrazol 76738-62-0
Permethrins 52645-53-1
Phosmet 732-11-6
Piperonyl Butoxide 51-03-6
Prallethrin 23031-36-9
Propiconazole 60207-90-1
Propoxur 114-26-1
Pyrethrins 8003-34-7
Pyridaben 96489-71-3
Spinosad 168316-95-8
Spiromesifen 283594-90-1
Spirotetramat 203313-25-1
Tebuconazole 80443-41-0
Thiacloprid 111988-49-9
Thiamethoxam 153719-23-4
Trifloxystrobin 141517-21-7
ppm = parts per million