Fungus gnat?
- Thread starter Combatcow
- Start date
oldfogey420
Well-Known Member
I'd have to say yes to fungus gnat. Hard to be 100% without an idea of size, but it looks like one to me. Get some dietomaceous earth and sprinkle along the top of the soil.
oldfogey420
Well-Known Member
Erm... food grade DE specifically. The pool grade is supposedly not ok, and I wouldn't even think of adding pesticide grade DE, who knows if there's chemicals etc in that stuff.
I've personally used pool grade in the past without problems, but I could have just been lucky. Safest bet is to stick to food grade.
I've personally used pool grade in the past without problems, but I could have just been lucky. Safest bet is to stick to food grade.
Combatcow
Active Member
Thanks guys I'm controlling it using yellow sticky cards, 1/5 peroxide watering, and sticky silver fly traps. I have encountered a new problem someone threw a towel over my plants (dumbass) to cover them up and they look very bad I'm very concerned here's a pic
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Combatcow
Active Member
Yeah ik the peroxide is supposed to kill the larvae on contact well see how it works I keep everything sterile and clean. Have no idea how they came about read my post above ^
im4satori
Well-Known Member
In hydro
I use peroxide on the regular
it doesn't do anything for larvae and itll ruin your soil
one day youll get tired of chasing the gnats and get the gnatrol ...lol
you can also use liquid BMC (biological misquito control)
which is the same as gnatrol but in a liquid form
if you ever grow in hydro
I use peroxide on the regular
it doesn't do anything for larvae and itll ruin your soil
one day youll get tired of chasing the gnats and get the gnatrol ...lol
you can also use liquid BMC (biological misquito control)
which is the same as gnatrol but in a liquid form
if you ever grow in hydro
Combatcow
Active Member
At first I was debating hydro but it seems too complicated plus I don't have too much time for this. I read somewhere that the peroxide watering was beneficial to the soil and kills larvae is this not true or what?
im4satori
Well-Known Member
if you had root disease and wanted to kill the pathogen causing the root rot you would use it
and then you would do all you could do to introduce beneficial bacteria back into your soil .....
in soil h202 is a last resort in soil for root rot only and hopefully always avoided
in hydro
the medium ...like rockwool for example... h202 works well to sterilze your reservoir so algea doesn't grow.. and it briefly adds oxygen to the water
but it takes a toll on your roots over time
If I had root rot I would try an enzyme before considering something like h202 in soil
and then you would do all you could do to introduce beneficial bacteria back into your soil .....
in soil h202 is a last resort in soil for root rot only and hopefully always avoided
in hydro
the medium ...like rockwool for example... h202 works well to sterilze your reservoir so algea doesn't grow.. and it briefly adds oxygen to the water
but it takes a toll on your roots over time
If I had root rot I would try an enzyme before considering something like h202 in soil
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greasemonkeymann
Well-Known Member
cover the top layer of soil with an inch of horticulture sand
works everytime, sand is too dense and at an inch its too thick for them to get through it
Pig4buzz
Well-Known Member
Mosquito bites. Sprinkle in soil. Wet it It kills the laruve
greasemonkeymann
Well-Known Member
good advice
BTI works well for that
oldfogey420
Well-Known Member
DE is readily available and will kill the larvae AND adults quickly. Sticky traps catch some adults, but not all, and in the meantime they're reproducing like crazy. The adults are not the problem. The larvae will eat up your roots and can screw up your crop if left unchecked and allowed to get out of hand. You have to kill them at the source. Cover the soil with DE and your gnats will be but a distant memory. Gnatrol looks good too. I wasn't familiar with the product until I saw it suggested here. It has a type of bacteria that won't hurt you or your plants, but will kill the larvae quickly. Once they're dead, the adults will gradually die off or be caught by your sticky traps.
After a pretty bad infestation several years back, I now just mix DE into my soil before planting and I've never had a problem since.
Please take our advice and attack the problem at its source (larvae), or you will be fighting an uphill battle for the remainder of your crop's life.
After a pretty bad infestation several years back, I now just mix DE into my soil before planting and I've never had a problem since.
Please take our advice and attack the problem at its source (larvae), or you will be fighting an uphill battle for the remainder of your crop's life.
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Combatcow
Active Member
Where would you go about getting this sand?
Combatcow
Active Member
Would the home depot or lowes have this DE?
oldfogey420
Well-Known Member
I found pool grade at home depot and food grade on amazon. Again, I may have been lucky to not have any problems when i used pool grade. Others have warned against it.