Posted 6/21/2016 08:12 (#5367273) Subject: COC or NIS for Prefix post on soybeans?
Eastern Kansas
Chemical supplier suggested crop oil concentrate to use with Prefix and Rup post on beans. However, the UNL crop guide specifically says: "Add non-ionic surfactant at 0.25% v/v to the final spray volume. Do NOT use crop oil concentrate when applying Prefix post-emergence as these spray adjuvants may increase soybean injury."
Does anyone have any experience or recommendation either way? Thanks.