fungus gnats - next level assistance

[kaede]

Congratulations !

Fungus gnats are terrible, but at least they don't harm the plants that much and can be eradicated.

I didn't use BTI dunks but BTI granules instead which were cheaper and are good to go 12 or 24 hours after being in the water (may not be available in some areas). I used them everyday for about 3 weeks, and 1 more week just for good measure.

These have to be in combination with sticky traps though, for the adults. Then all these fungus gnats will disappear. One can be creative in finding spots to put these sticky traps, I even had to roll some to fit in some places.

I also tried Gnatrol from the USA (ebay), works well too (and it comes with sticky traps, which really is needed).

[DeaC]

Would you consider???

[Cloud_gardener]

I had a very bad problem with fungus gnats on my orchids. I tried mosquito dunks, diluting hydrogen peroxide in the water I use for my orchids, diluting neem oil in the water that I used to for my orchids, and yellow sticky traps. All those methods work to a degree, but within a few days of the treatment the gnats were back.

I thought I would never be able to get rid of them, but I came up with any unique solution, I bought a large powerful fan that provides steady, constant air circulation across my orchids. After buying the fan, I cut down on the frequency of my watering from every 7 days to every 10-12 days for a few weeks, and I could happily say that the fungus gnats are pretty much gone. I continue to monitor them with the yellow sticky traps, just to be sure.

So if you're looking for a simple solution to your fungus gant problem, instead of buying a bunch of chemicals and solutions that may not work, buy a fan and increase the air circulation where your orchids are. Good air circulation is the answer.