URGENT Question Tiny gnats in my soil.

OldG

Elite Hobbyist
I am chasing the little pricks myself. At least they dont bite.

I think i am going to grab a bag of play sand to put on top of the pots. I need another fan too.

Yellow stickies, fans, peroxide wash and i had a veg tent being all gnattty so i sprayed them down with safters defender and they were gone overnight.
I will win...and i switch to coco or stop overwatering soil.....50 50 right now.
 

Capt. C

Saltwater Cowboy
Staff member
I am on my second or third round now gnat free in coco. I think it was @Dbear( thank you)that i got this info from but not positive. When transplanting the plants i put approximately a inch of media then sprinkle approximately a tablespoon of mosquito bits on top of that. I then sprinkle the same amount on the top of the media. Point of this is not much sense closing the front door if you leave the back door wide open :rolleyes: . Once a week i give the plants a good media soak with recharge and i also have BTI in that same mix for any larvae that may have developed. The BTI is mixed in the solution 24 hrs prior to application. I have continued use of the yellow sticky's but have not seen much activity on them lately. Hope this helps for all fighting the fight.
 

Willie

In Bloom
BT kills them

There are two basic types of BT one for fly types and one for worm types. Use both.

Dunks and bits= fly types. Crumble and mix into potting soil 2" below surface

Thuricide = worm types. Mix 1 teaspoon per gallon with whatever you water.....the next three times.

Infest will be done in 2 weeks and for the remainder of the grow. Yellow sticky traps help to reduce the fliers during that time.

I only grow in dirt/promix and this works like a muckerfuther.
 
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Capt. C

Saltwater Cowboy
Staff member
BTkills them

There are two basic types of BT one for fly types and one for worm types. Use both.

Dunks and bits= fly types. Crumble and mix into potting soil 2" below surface

Thuricide = worm types. Mix 1 teaspoon per gallon with whatever you water.....the next three times.

Infest will be done in 2 weeks and for the remainder of the grow. Yellow sticky traps help to reduce the fliers during that time.

I only grow in dirt/promix and this works like a muckerfuther.
@Willie i did not realize there were two different types maybe that is why i am experiencing success now. I kind of thought they were the same thing. Whatever the reason i am glad to be rid of those critters.
 

Willie

In Bloom
@Willie i did not realize there were two different types maybe that is why i am experiencing success now. I kind of thought they were the same thing. Whatever the reason i am glad to be rid of those critters.

Yup, and the worm type is devastating to the larvae, much better than the dunks although they also kill larvae also. Any sprinkling of the dunks on the soil surface is a waste of time and money. BT won't last 24 hours like that, but under the surface it will work for weeks.
I will re-use my dirt twice and I find that I usually don't see any gnats the second round at all. And that's without further treatment! Like it's BT innoculated or something.....whatever, it's damn effective :)
 
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