Blog of Forensic Agrology by George Lewko PAg

Blog by George Lewko PAg

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Crop Damage (8)
Group 2 Damage (1)
Investigations (7)
Orchard Or Garden (3)
Spray Drift (8)
Spray Tank Contamination (1)

July 11, 2026

Liberty® and Hidden Group 2 Herbicide Residues: Why Clean Sprayers Can Still Damage Canola

Liberty® and Hidden Group 2 Herbicide Residues: Why Clean Sprayers Can Still Damage Canola By George A. Lewko, P.Ag. – Certificate in Forensic Agrology One of the most frustrating crop damage investigations...

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George Lewko PAg has been a Forensic Agrologist for over 15 years. George instructs the forensic agrology course for the S.I.A. and pesticide applicator courses for Sask Polytech too.

Blog by George Lewko PAg

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Liberty® and Hidden Group 2 Herbicide Residues: Why Clean Sprayers Can Still Damage Canola

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