Ants on my plants!
Does anyone know if ants can harm impatiens? I have been having some trouble with mine, some of the plants doing great, some getting weak and falling apart at the biforcation at the stem. I have recently noticed that there are a lot of tiny ants all over the plants. Some are dark brown or black and some are extremely tiny and are reddish brown. The plants are in rail boxes. I looked for aphids but I haven't been able to spot any, only some gnats and an occasional beetle (that I flick off). Does anyone have any suggestions? I really don't want to spray any chemicals if I don't have to.