bacbbe5f_elphia_County_Master_Gardeners__How_to_DIY
[Management Method] Submerge, Rinse & Repot (The old college try) [Who/What it Manages] A last ditch effort to rescue a plant from any pest, roots to tip of stem. [How to DIY] 
If a plant is completely infested, pulling the plant from the pot and shaking off all excess soil and submerging the entire plant in room temperature water for up to 15 minutes will send many of the pests looking for higher ground and they will “float” away. Don’t be afraid to gently wipe the stems and corners to “bathe” the plant. Follow with a good rinsing and wiping of leaves then repot in clean potting mix. Follow up with a preventative treatment to keep potential eggs or stragglers from creating a new brood.
Philadelphia County Master Gardeners
How to DIY