Good day. I have been battling fungus gnats in my house plants that have now spread to my tropical bonsai. I have done 2 hydrogen peroxide washes, 2 neem oil washes, applied 2 layers of diatomaceous earth and covered the soil with crushed rocks and applied nematodes. I still have the buggers. Should I do an emergency repot on my bonsai to get rid of them? It is late fall and I am in zone 6a/b. I have yellow sticky paper arriving today, Sevin powder and ceylon cinnamon to put on the soil as a last resort.
