Fungus gnats in Rockwool

let me begin by saying that I’ve been doing this for about half a decade, I’m no noob, but I just had my first encounter with fungus gnats. Initially I thought it was a fruit fly from my lunch or something no biggie it was just one right? WRONG! These little fuckers have invated all of my cubes and severely damage my big hairy bitches. Now the source was the floor drain imo, covered it with cheesecloth and treat it with biohave.

Well now these little suckers are all over my garden. I’m not even to worried about this run as it’s already going to bs. my concern is getting rid of them completely so my next run is good.

I’ve been doing drenches twice a week, for about 3-4 weeks now. Rotating azamax and spinosad. At 1/2oz gal and 2oz gal.

Im letting my cubes dry out properly, and thinking about just going with nematodes and spinosad. I’ve also considered fogging with Spinosad after harvest.

I’ve had a nice size spider mite outbreak once. I know it takes dedication in a lot of spraying. I got that part. And I know that that Azamax takes a little while to work. I don’t see that many fliers most days just a few. I got a led zapper, sticky traps I count. After harvest I was going to use peroxide also.

Not sure what else I can do. These cubes aren’t covered so the algae is perfect environment for them, especially once you’ll considered the CO2 and temperature.

I think I got a handle on the moms and veg.

Just not sure what else I can do. Be more patient and keep fighting ?

I really do hope things get better in the next few weeks . There’s no more larve that I can see. But I’m want them 100% gone. This is also my first time using spinosad.

For the pros, should I Switch to spinosad fully? Use both. I dunno anymore. Time will tell but at this point I feel like I’m gonna have to chop and do major cleaning using peroxide and spinosad in a fog machine and just bag my equipment,

Any other inputs or experience would be greatly appreciated guys,

Thanks

Peace love n resect

Jay

I've used mosquito dunk powder on the soil in my ports with a 1/8" covering of new soil to get rid of the fuck3rs, takes about a week. Every time I water, the soil gets another bt inoculation from the powdered dunks. I don't know if this will work in your situation, but the powdered dunks is a goto for me.

Maybe float a dunk in your rez, the dunks are floated in ponds to address mosquito larvae, so the bt in the dunks definitely gets in the water when floated. This way, every time you feed, the gnat larvae gets a new dose of bt.

There’s also thrips no joke. I have thrips and aphids in my Rockwool, I still have several cases left over. I’m wondering if I could sterilize them before I use them. Possibly freeze the cubes. I hate to throw out $1000 in slabs and cubes. I contacted grodan. Still not heard back. my last run was just upsetting, there’s black specs in them, I’m pissed. I just picked a random slab and cut it in half, shiny little black balls are all over. It’s tragic. I’m gonna start a thread about it.

Nuke the blocks before use.

Yeah I used spinosad this last round. The azamax didn’t seem to work. Even the spinosad took a few weeks. I believe I got them all. But this is my first time seeing this, or having fungus gnats. I’m going to blast it all I think. Don’t know how the spinosad effects things. I was more worried about killing everything tbh. The next rounds my focus. Just sad. No quality control I’m assuming.

A peroxide should do the trick.

I actually laid the slabs down yesterday and made tiny slit at tops and filled them with Rez water. I got about 6 lights done with 100 gal. If it doesn’t depend them the spinosad will kill them. There still full 24 hours later. Should probably cut some drain holes lol