Ants & Gnats

[Knnn]

Had a problem on the property here last year with fire ants and soil gnats, The greenhouse went up in the fall so no problems there yet Is there anything I can safely use in the greenhouse to try and keep these things out? ( We usually have a large "ladybug" population around which does a great job on any scale & mites and would like to find something that wouldn't impact them)

Thanks.

-Steve

[Pazuzu]

Hi, I have a 1700+ sq ft greenhouse and am also a state certified nursery in Florida where fireants are King.
I have a Fireant Certification from the state and it requires me to treat my plants and my greenhouse space every 3 months. I have to use stuff from a list that the stste of FL USDA gives me. I use Amdro. It works. I have also used Orthene Ant Killer. It works too, but it smells bad. Really bad.

[Knnn]

Thanks for the info! I'll probably try the Orthene to start with and take it from there.
Hoping our winter may have knocked them down a bit but not betting on it.