Ant control on house plants
I have experienced an ant infestation on a house plant (presently outside on my deck). What is the best household spray concoction that I might use to rid the plants of ants? Thank you for your advice.
Frederick County Maryland
A good heavy watering can wash out a lot of your ants, but they may be nesting and tending larval ants within the soil and root area of your plants.
Short of soil disruption and re-potting, we'd suggest getting a gel-type ant bait like the one Terro makes, with the active ingredient boric acid and placing it close by the draining hole or wherever you see them coming and going.
They should be left alone while they feed on the bait, which they will take into the pot and feed others. It acts over a few days to kill the whole colony.