Jana writes
The pests we are dealing with are root aphids. Any other recommendations, in addition to optimum concentration, are welcome. Thanks!
Riptide 5.0% Pyrethrin ULV is not labeled to be used as a root drench. It is not a systemic and will not be absorbed through the roots. It is only for spraying plants surfaces to kill exposed aphids on plants. If you are looking for a systemic product to apply as a soil drench Adonis 2F would be a better option.
Answer last updated on: 04/29/2016