Fungas gnats

Just to report back. The yellow strips had even more on them today. A good 20 on each I think.

Potato skins work well. I found these minute black mini-knats (?) in the skins. I didn't check every single one after I saw this. I then put the potato skins straight out of the house and cut up more slices. I worked out that the grater is better than trying to peel them as you have a lot more use and they are finer and bigger.

I'm going to bleach the drains and plugholes..

Originally Posted by Coho

You can buy cans of the sticky crap and put on trunks. Its called tanglefoot.

I've heard of this stuff in 'The Bible' but have never seen it. I'll look on Ebay. I really want to try it. I was thinking of making my own paste from Vaseline (petroleum jelly) with Neem oil in the meantime. Would it work ?

Thanks for all ur help btw. I have found loads of small black knats on them. I dispose of them out of the house straight away.

My question is : I'm seeing 3 different stages of them from the adults flying and landing on the yellow strips to white lice under the leaves to these tiny black crawling knats. Im confused at which life cycle stage the black tiny knats come from if the lice and already on the leaves?? Plus the lice look bigger than whats on the potato skins? Not sure if that's clear.

Back with update i used the gnatrol and sticky yellow cards it looks like for now i win . Me = 1 gnats = 0

Originally Posted by bauty67

Back with update i used the gnatrol and sticky yellow cards it looks like for now i win . Me = 1 gnats = 0

Well done for getting on top of it!!! How many are on the yellow strips ?

i have had good success with a product called 'gognats". its cedar oil. mix a tbl per gal and mist em too. a large oven would be nice. since the eggs come free with the "organic" potting soil. 250 degrees for half hour. of course, this kills the good stuff, but it will be redone when u add tea, or mycortizae. i was allways told they dont do much harm. but even with my stuff, i had a hell of an outbrealk of them this time. also, try mixing two tbl peroxide 3%. in a few gallons water.

+1 for the sticky traps, they also work very well for whitefly.

For me, on top of sticky traps I've always used neem oil, mixed with a small amount of pyrethrum (1/6) and dish soap to dissolve the neem. I spray around base of plants for at least 7 days. Pyrethrum is a great on-contact killer, and neem oil turns the gnats themselves sterile, meaning no more breeding, this works very well if you are highly likely to get the gnats again, for example if your grow area is near a vegetable garden or outside area etc... Once the problem is under control I put a 2" layer of perlite on the top of the pots and reapply the mix about twice week for good measure.

I love the Neem oil and use a weak mix of 0.1-0.2% which is 1-2 ml / litre. The dosage instructions are 0.5% - 5ml /L.
It hasn't been enough so far, even if I increase the mix. Killed the adults but still more lice under leaves. I've got 3 yellows strips around 2 x 600W and each has caught over 20. Potato skins are good too. I think I'll spray the soil with Neem. I also have pyrethrum but it's so strong even at 0.1%.

What mix do you make from ur concentrates (Neem, Pyrethrum)?

Going up to see the girls now. It's boiling outside, thank God for AC and timers coz Im late !!!!