Tobacco or peroxide to help control gnats.

[Fiddle]

I have lots of tobacco to play with, a pound is like 40 bucks. got it so I would have to roll cigarettes instead of just having a pack of them on hand. I do not want to pour a pound of tobacco worth of extract into my plants, just get the population to stagger then put down some cloth and a couple inches of sand. I have already been weening them off water and the surface has been dry for a good while. I poked a hole into the soil and invert a bottle with a small hole in it to water so that is where I see most of the activity.

In the meantime I sprayed with soapy water, cutting their weekly water intake in half and just monitoring. So on and so forth would I have better results just using peroxide and reseeding the microbes.

 

[Death The Cultivator]

Your best bet would be using a triple blend of nematodes. BTI can work but it takes week for the bacteria to build up. Household peroxide is 3% and too weak whereas you would want horticultural peroxide from 28-40% and that isn't the way to fight gnats.

Hydroton over the substrate and ensuring there is no standing water with a monthly application of nematodes will knock down the infestation and keep it away.

Arbico or Nature's Good Guys would have you covered for nematodes.

 

[Fiddle]

Edit: From a bit of searching around a brand called the environmentalfactor is the most common thing thatpops up for neematoads

That is some good pricing. I cannot seem to order these to Canada. Until I can find a place to get em and funding can what I have manage them even a bit, hydroxide aside

 

[snerval]

BTI can work but it takes week for the bacteria to build up.

I added some BTI (gnatrol) to my initial mix with great success - unlike during my first grow, I didn't see the shadow of a damn gnats

 

[Bill.de.Cat]

I have lots of tobacco to play with, a pound is like 40 bucks. got it so I would have to roll cigarettes instead of just having a pack of them on hand. I do not want to pour a pound of tobacco worth of extract into my plants, just get the population to stagger then put down some cloth and a couple inches of sand. I have already been weening them off water and the surface has been dry for a good while. I poked a hole into the soil and invert a bottle with a small hole in it to water so that is where I see most of the activity.

In the meantime I sprayed with soapy water, cutting their weekly water intake in half and just monitoring. So on and so forth would I have better results just using peroxide and reseeding the microbes.

As I roll my own as well there is always that bit at the end that's too fine to really roll with, you could save and use that instead of rollable tobacco.
As a side note when I lived in Jax Fl. the Swisher Sweet plant would sell the "dust" real cheap as it was a good pest control product to spread on lawns...they stopped cause people started using it to smoke.

 

[R Wayne]

I found that BTi (mosquito bit tea) applied every other watering for 2-3 weeks along with yellow sticky traps to catch the adults worked wonders for me. Completely knocked em out.
Like @snerval mentioned, I added BTi in the form of mosquito bits, instead of gnatrol, in my initial mix and saw only a single gnat the entire grow.

 

[Death The Cultivator]

I added some BTI (gnatrol) to my initial mix with great success - unlike during my first grow, I didn't see the shadow of a damn gnats

It definitely depends on the level of infestation. If it's small then traps, BTI, and covering the substrate surface work fine.

I don't know how many are familiar with warehouse conditions but often we don't know how long a product has been stored and been affected by unknown conditions.

So at times, Substrates can be heavily infested and require more aggressive IPM methods. I'm not saying BTI doesn't work, it doesn't work fast enough especially if the population needs to be knocked back significantly.

 

[Bill.de.Cat]

I have lots of tobacco to play with, a pound is like 40 bucks. got it so I would have to roll cigarettes instead of just having a pack of them on hand. I do not want to pour a pound of tobacco worth of extract into my plants, just get the population to stagger then put down some cloth and a couple inches of sand. I have already been weening them off water and the surface has been dry for a good while. I poked a hole into the soil and invert a bottle with a small hole in it to water so that is where I see most of the activity.

In the meantime I sprayed with soapy water, cutting their weekly water intake in half and just monitoring. So on and so forth would I have better results just using peroxide and reseeding the microbes.

Just reread and you must not be in the states.....I pay about 15 bucks a pound....

And use the empty bags for short term storage....holds 4 oz nicely with a Boveda and hygrometer.

 

[N/A-Greengo]

Agree with @Death The Cultivator, Nematodes and sticky traps usually keep the Gnats under control for me. I however use Environmental Factor Nematodes. I do believe it is a Canadian Company so I'm surprised you can't find them. When Nematodes and the traps fail, I add BTI to the regimen, and they work great together to eliminate the problem.

 

[Fiddle]

I keep the stuff in the freezer, that was also bought off the reserve, things are cheaper there as a business on reservation land, becomes income for the reserve not the city's surrounding. Canada also taxes the hell out of tobacco just because? anyway..

I was able to come across the environmental factor, I am going to see if anyone local has it before ordering any. in the meantime I put up stickies put a hollowed potato in there and I'll switch that out once a day if it attracts the larva. if that is all a wives tale I'ma go cry and spray the dirt with my tobacco soap water. I am also letting it dry out instead giving it a half liter every two days per plant, I am hoping with a diverse set of stresses maybe the population can be shocked and buy me some time.