I can't find my bottle of systemic, and don't remember the name. I used it on all of my plants last fall there were coming indoors. I was having a lot of trouble with fungus gnats and mealy bug. No problems this winter.
I used it on everything, tender succulents, begonia, tropical hibiscus and adeniums.
I don't use one that has fertilizer in it. I found it online.
https://www.amazon.com/dp/B000BX1HKI/
Great article on insect pests.
https://www.amazon.com/dp/B000BX1HKI/
