I have ants crawling all over the foxglove plant i have in a pot on my terrace. they are tending the black aphids. i've tried chilli powder and spraying with hot soapy water but they remain. how can i get rid of them?
Julia / Hackney, London.
In fact, i think we may have an ants nest on our terrace as most of the plants we have in pots have ants crawling all over them...please help!
- 5 May, 2011