Defeat Fungus Gnats with Ultimate Plant Assasins 

Brilliant!! Well documented, well presented. Great top you're wearing, too!

Great info. Thanks so much for the video!

Venus flytraps do not attract fungus gnats (except to their soil), and cannot catch them even accidentally, because they are much too small to trigger the hairs that snap the trap. Nepenthes pitcher plants MIGHT catch an occasional one that happens to enter a leaf, but once again, they won't attract them because fungus gnats are not attracted to nectar. But the constantly moist planting mix is an ideal environment for fungus gnat larvae. The sundew can help, though there's not much evidence that it actually attracts fungus gnats. But if you have a lot of sundews, they will be attracted to the moist soil and are likely to get snagged. You didn't mention the most efficient fungus gnat trapper: Mexican Pinguiculas, aka butterworts. Not only are they easy to grow, but they attract and digest huge numbers of gnats. Still, they will not make much of a dent in an infestation because most manage to mate and lay eggs before they get trapped.

I’m in Texas where can I find these plants

I am new to growing food and unsure if fungus gnats are an issue. Something is making a spider web like thing over new plants on my sealed porch under grow lights and they are dying. Something ate all the leaves of my tiny tomato seedlings and now my sweet potato slips are dying.