fungus gnats

Millipede

• Jul 23, 2009

• #1

i have fungus gnat larvae in my pot that i just put a whole bunch of nepenthes seeds in to sprout! i heard they will eat the seeds. what can i do? im guessing theyve been there the whole time since i leave my bale of peat moss outside under the porch....

 

F

F R e N c H 3 z

• Jul 23, 2009

• #2

They eat roots, they're only a pest in seedling pots. Your best bet is neem oil. If you have full size plant the gnats just act as a good natural fertilizer.

 

Millipede

• Jul 23, 2009

• #3

yes its a seedling pot... are they doomed?

 

Wolfn

Agent of Chaos

• Jul 23, 2009

• #4

I bedroom is full of little gnats because I have several CPs on my windowsill.

 

theyellowdart

sea bear returns!

• Jul 23, 2009

• #5

F R e N c H 3 z said:

They eat roots, they're only a pest in seedling pots. Your best bet is neem oil. If you have full size plant the gnats just act as a good natural fertilizer.

Click to expand...

+1 to neem oil.

Have patience with it. It usually takes a few days to kick in.

 

Millipede

• Jul 23, 2009

• #6

i just spray it on the soil?

 

F

F R e N c H 3 z

• Jul 23, 2009

• #7

Yes just spray the soil and spray for 1-2 weeks every 2-3 days at the dilution the bottle states (though you can get away with full strength). Be careful though it has a stench to it : /
Your seedlings may be fine though, just because the gnats are there does not mean that ALL seedlings will perish. They're really a minor inconvenience in comparison to other pests.

 

Not a Number

Hello, I must be going...

Staff member

Moderator

• Jul 23, 2009

• #8

BTi is a better bet. Neem oil can interfere with cellular division (that's where its anti-fungal properties comes into play). Not something that would be good for seedlings. Mosquito Dunks is a readily available source of BTi.