Does it matter whether I desiccate with Reglone or glyphosate?
Reglone is a herbicide that kills plant tissues immediately on contact, and therefore speeds up the drying process for both crop and green weeds. Conversely, glyphosate is a herbicide that kills the plant slowly after absorption and translocation to the growing points in the plant. Glyphosate is used in a pre-harvest application to control perennial weeds such as quackgrass, perennial sow-thistle, toadflax, dandelions and Canada thistle. Therefore, glyphosate is generally not referred to as a desiccant because it contributes only slightly to the dry-down of the crop. Depending on the weather conditions, crop dry-down after a pre-harvest glyphosate application can take anywhere from one to three weeks or more under extremely cool and cloudy conditions. To achieve rapid dry-down for the purposes of managing harvest, Reglone is a better choice. Liberty is also registered for desiccation of lentils. The speed of dry-down with Liberty is somewhere between Reglone and glyphosate. The choice
