J writes
Does Diquat stay active in soil longer? My understanding is glyphosate doesn't stay active.
Glyphosate products like Roundup QuikPRO - 5 x 1.5 oz. packs can have a chemical residual in the soil of up to 2 weeks so it is recommended to wait that time before planting in the treated area.
Answer last updated on: 12/03/2016