Hydrogen Peroxide?

O

Oldguyrealy

Well-Known Member
Ok problem with Fungus Gnats every so often in grow and Greenhouse.

I understand it isn't the Gnats that cause the problem.

I find that Hydrogen Peroxide will take care of the problem and plants like it.

So what about putting some around plants as more of a preventive once a month?
 
Fangthane

Fangthane

Well-Known Member
I've seen this recommended on this site for dealing with gnats:


Pretty sure peroxide will eradicate the microbial life in the soil, so you'll probably want to reintroduce some after the gnats are gone. May want to take that into consideration if you're gonna stick with peroxide.
 
Billy the Mountain

Billy the Mountain

Well-Known Member
A BTi spray would be ineffective against fungus gnats; it needs to saturate the medium completely.
Add BTi to the nute mix to thoroughly soak the growing medium.
BTi prevents gnat larvae from developing but does nothing to adult gnats.
 
green_machine_two9er

green_machine_two9er

Well-Known Member
Oldguyrealy said:
Well the Larva does the damage.
Click to expand...
Not really. If your plants are happy then even a “large population” of fungas gnats larvae can’t do much to plant. Obviously they can chew on roots but they really only prefer organic matter that is breaking down. So if your roots are unhealthy and rotting then yes.

Otherwise just do the BTI drench.

The really danger of gnats is bugs in sticky flowers
 
sfw1960

sfw1960

Well-Known Member
Oldguyrealy said:
What about Mosquito Bits spray?
Click to expand...
Not sprayed here!
Just a TBS watered in the top and I only treat if I see any gnats. It's the closest thing to a pesticide we use here. Apply once and reapply in three weeks has been great for getting them under control.
I believe Summit Responsible Solutions has instructions on the package of the bits...
 
JeffWix

JeffWix

Well-Known Member
Oldguyrealy said:
The same as bits.

I repotted the ones I was having trouble with going to repot them again once I get the soil I want.
Click to expand...
I just used mosquito bits to help my fungus gnats problem...definately working...I use pool skimmer bags to put the bits in to soak them...I usually do 3 gallons so that is a 1/4 cup of bits...Spinosad knocked them down but not out
 
You must log in or register to reply here.
Top