No purchase required. Contest begins at 12:00 a.m. ET on Thursday April 1, 2021 and ends at 11:59 p.m. ET on Monday May 31, 2021. There are 12 prizes available to be won. The 12 prizes are one (1) 1.2L bottle of Shieldex 400 SC corn herbicide. Skill testing question required. Open to legal residents of Ontario who are 18 years or older and are a current Grain Farmers of Ontario farmer-member at time of entry. Odds of winning will depend on number of eligible entries received before Contest closes and how many entrants opt-in to email marketing from Gowan Canada. Entrants that opt-in to email marketing from Gowan Canada will have a greater chance of winning. Limit one entry per person. Full rules and entry details available here.