Picloram SOIL ACTIVITY AND MOBILITY Soil active;highly mobile in soil especially if percolating water is present Tends to be excreted by plant roots; results in soil activity even when applied by injection or other cut-surface treatments Mistretta USFS R-8Picloram SOIL ACTIVITY AND MOBILITY Soil active; highly mobile in soil especially if percolating water is present Tends to be excreted by plant roots; results in soil activity even when applied by injection or other cut-surface treatments Mistretta USFS R-8