On Tue, 13 Mar 2007 16:26:01 -0500, "JohnS" wrote:

What is most effective for spider mites on the Impatience plant?

Just hose the plant off every day from the undersides of the leaves.
It will wash the mites off and no pesticide is necessary. Proper
watering and fertilization for having a healthy plant is also a way to
prevent insect damage. For some reason, the plants attract insects,
mites, etc. when the plant is not healthy.