I have had a peace lily for about 2 years which is doing very well. This year we have seen a large number of fungal gnats on the windowsill (and once on the floor) near the peace lily. I also have a succulent on the same windowsill. Orkin came and spayed the bottom of the windows as well as the drains in the bathroom sinks where we first noticed the gnats. However, he also told me that fungal gnats sometimes live in plants such as my peace lily. A friend told me there is a product I can buy which when stuck in the plant dirt will cause the gnats to stick to it thereby letting me know if the plant is indeed breeding them. Do you know of such a product and where I can buy it? Also is there anything I can buy which I can spray into the pot around the plant which will kill the gnats but not the plant and is safe to use? I do not want to get rid of the plant! Thank you.