My Growitup Greenhouse Grow 2010
- Thread starter cruzer101
- Start date
HowzerMD
Well-Known Member
Definitely. Ya can't go wrong. Is that the seedsman hks? AKA pot of gold.
rastadred22
Well-Known Member
that makes even more excited to grow hindu kush! everything is lookin great man!
I noticed some small fly's around the base of the hydro, I got another problem.
Im not sure what they are, looks like fungus gnats but the wings are much longer then the body, more like fruit fly's.
What can I use use in the res to kill these things?
The roots have turned darker color and the Gnats are all over them.
If you have had any experience with these dam things please let me know, I gotta do something quick.
Im not sure what they are, looks like fungus gnats but the wings are much longer then the body, more like fruit fly's.
What can I use use in the res to kill these things?
The roots have turned darker color and the Gnats are all over them.
If you have had any experience with these dam things please let me know, I gotta do something quick.
gumball
Well-Known Member
Maybe add a touch of bleach to the rez. Maybe set out a large bucket of water mixed with vinegar, not sure if they will be attracted enough to that to leave the rez and roots. Will neem work in hydro? Maybe just set some rotting fruit in the corner and throw it away as the gnats become attracted. Who'd of thought in the winter.
blakerobinson
Member
With fungus knats you have to worry about them eating the fresh new roots and dead parts of the plant. They also get stuck to buds, which sucks xD
There is a product called "Gnat off" which worked for me in soil. It didnt fully exterminate them but it kept them to a minimum, if this is added to your mixture it might keep the root eaters under control.
To keep them from flying around and laying more eggs/getting stuck to buds, use yellow sticky traps. Put them anywhere you think the gnats will walk, i put them around the edges of the pots and it worked wonders but you're not using soil so its not the same, they probably enter at a different place. Hanging sticky traps in the air doesnt work, they have to be fixed to something (use one side to stick it onto surface, leaves a scummy residue though)
My last bit of advice is to read up on fungus gnats and their life cycle, it'll help greatly learning how to control them.
There is a product called "Gnat off" which worked for me in soil. It didnt fully exterminate them but it kept them to a minimum, if this is added to your mixture it might keep the root eaters under control.
To keep them from flying around and laying more eggs/getting stuck to buds, use yellow sticky traps. Put them anywhere you think the gnats will walk, i put them around the edges of the pots and it worked wonders but you're not using soil so its not the same, they probably enter at a different place. Hanging sticky traps in the air doesnt work, they have to be fixed to something (use one side to stick it onto surface, leaves a scummy residue though)
My last bit of advice is to read up on fungus gnats and their life cycle, it'll help greatly learning how to control them.
Thanks guys, What I am looking for is treatment to kill the larve at the roots. I gotta do it through the sprayers so I'm thinking I need to add it to the res. I have been doing some reading and Gnat off wasn't effective for this one guy... lots of things could have gone wrong though. I'll go to my hydro shop and see what they have, gotta get some stickys anyway. In the mean time I added 20mil of hydrogen peroxide to the res (its about 6 gallons total) whatever I can find I'm gonna have to change out the water now.
HowzerMD
Well-Known Member
Use Mosquito Dunks. They're these little pucks you get at the hardware store/garden center for $5-10. Drop it in your water reservoir and leave it in there. The active ingredient is a bacteria called Bacillus thuringiensis. It's ment to kill larvae in standing water, but someone discovered it works the same when it's in the water we use on plants. I'll take pictures of each of my yellow sticky traps if that have been in since day one of this round if you want..Not a single stray gnat. It works for either hydro or soil. I keep one bobbing around in my reservoir at all times. Don't worry about controlling them when you can prevent them. I'm not sure of it's effectiveness for a thriving population as I've only used them from the start of each grow, so keep that in mind.
riddleme
Well-Known Member
Good advice
each female lays 100 or so eggs, they reproduce year round and very fast, but they like to lay eggs in the topsoil so don't only treat your hydro grow, allow the top 3 inches of your soil grow to dry out to stop the eggs, and to help this you should put an inch layer of something (sand, perlite, vermiculite etc) on top of the soil
Bleach, really? I guess in small amounts it wouldn't hurt but I never would have thought...
Ya know, I was wondering how they got in the tube. You think eggs could have gone up the supply line with the water? Yea, I read about those Mosquito dunks today, good to hear from someone who uses them. I'll pick some up.
I called my guy at the shop and all he had was some SM-90 said it works well.
Just so happens I have some so I added that for now.
Figure I should be able to get the stickys and the dunks at the hardware store.
Dam, I think I have dealt with every kinda bug and fungus there is now.
HowzerMD
Well-Known Member
Maybe some eggs traveled the supply line, I couldn't know unless I saw firsthand. But yea, those dunks are great. Since I started using them a while back I haven't had to deal with any fungus gnats. The stray punk-ass once in a while but that's it. Certainly does sound like you've seen it all lol. Atleast now you know what to do and when to do it.
Good idea, I'll spray them all with SM-90 and add a bit of sand to the soil girls.
I stopped top watering a month ago, now the water is run to the trays under the plants and they soak it up.
gumball
Well-Known Member
dont say that, just when you thought you seen it all, remember what happens
your top few inches of topsoil probably are always a little dry since you bottom feed yours
HowzerMD
Well-Known Member
Heh heh heh.
Dust buster? Lol.Dude, i didn't even get a chance to get down there and get one of those dunks.
No, it was the SM-90 that did it.
Ya know, I got to thinking about it and I think the heat from the rope light has a lot to do with it. Without it they probably wouldn't have survived with these cold temps. I toned it down a bit by changing the timer. Now it turns on and off every 30 min at night.
No, it was the SM-90 that did it.
Ya know, I got to thinking about it and I think the heat from the rope light has a lot to do with it. Without it they probably wouldn't have survived with these cold temps. I toned it down a bit by changing the timer. Now it turns on and off every 30 min at night.
HowzerMD
Well-Known Member
Lol I ment a dust buster for the dead guys.. You're off to a fresh start, it's back to preventative measures .You must be ever vigilant
.