Little black flies and worms in the medium.

crespo

Member
Hi everyone,
Yesterday i noticed little black flies hanging out on my plants in the veg. stage.
I think these guys lay their eggs in the medium and then white worms shows up and eat the roots. Last time i had this problem aphids showed up and completely damaged my crop. There are not much flies/worms at this stage and i want to do what ever is possible to kill these nasty terrorists before they take over...
Is there any product that can help me?
Some threads i read yesterday says leaving sliced potato on the medium (rockwool inside soil) or leaving yellow sticky traps (????) on the soil.
Please help! anything will be very appreciated!
Thankyou!
 
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