Cinnamon for fungus gnats?

So I just found out I have fungus gnats. Took me a while realize it, because of the mylar on my walls, but when I brought my plant into the bathtub to water it (no runoff tray) I saw them flying around on the contrast of the white walls. I turned my fan off, and waited patiently and saw a good 6-12 of them flying around. I have been reading that cinnamon is a very effective treatment for gnats, because it either kills them, or kills the fungus they feed on (not sure which). Should I be concerned about cinnamon harming my soil's microbial life? I'm 4 weeks into flower, so I just want to keep them under control without neem or sand on top of my soil... Has anyone seen any negative effects with the use of cinnamon sprinkled on top of the soil?

mosquito dunks with BTi are pretty cheap and available.

dbkick said:

mosquito dunks with BTi are pretty cheap and available.

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Dont they take a few weeks to start working? I was thinking about that but I figured I'd be a week or two from harvest by the time they had any effect..

Few days anyway, but I think the first thing it does right off is make them stop feeding. There are other things that would be quicker but also more chance of harm to your plant, gognats uses cedar oil I believe.. hasnt really been a problem of mine so I can't really tell you much. Good luck.

dbkick said:

Few days anyway, but I think the first thing it does right off is make them stop feeding. There are other things that would be quicker but also more chance of harm to your plant, gognats uses cedar oil I believe.. hasnt really been a problem of mine so I can't really tell you much. Good luck.

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Thanks, friend.

I use these.

It is the same but easier to apply and is introduced each time you water. Most bacteria go through a lag phase of cell division and a log phase. The bacillus thuringineous takes about three days to develop a colony. If you use some sticky traps to capture the flyers, you can stop that part of the cycle. The larvae will consume the bacteria fairly quickly so they should not grow to become flyers.
The last part that fooled me once, was the eggs. They remain in the soil and will hatch after you have killed the flyers and larvae. This takes longer than ten days after you think you got them all. That's why sprinkling this on the surface of your soil is a good way to gradually introduce the bacteria and not threaten your existing micro-culture. I like the mosquito dunks except the cakes are messy and the little bits clog up shit.

Cinnimon is good to fight them with sprinkle it on heavy then use warm Neem oil/water spray it on the ciinnomin for a few days then give it a few days to dray then do it again it makes a cin/Neam cake that Really fucks up FGnats!! Hope that helped

That's pretty cool information I swear I learn something on here everyday. If your buds end up smelling like cinnamon you could always say it is French toast bud

I used cinnimon as well, i think it stops the gnats from laying eggs, or it stops the hatchlings from comming up. Either way, I had it bad by the time i applied cinnimon so i got those nasty aphid traps and hung them around, shook the plants every time i went up there (I was, and am, a noob so i was up there 20 times a day) and in about 3 days all was well.

DB

Watch the drain holes on the pots too. Try covering the holes with vaseline to keep them from going in and out of them. Put some DE or BTI on the vaseline also. DE cuts there little bodies to shreds...