thanks im going to put some kind of a fly papaer and then try ur trick, and if i will kill them by handIf they are little black flies be wary they could be rot flies. Regardless just put a little fly paper or something in the growroom.
Heres a trick for fruit flies (i dont know if those are a problem with pot at all) but take a beer bottle (or any bottle really) fill it with sugar water and vinegar then place a paper funnel into the top with the bottom of the funnel an inch or more from the liquid surface. The flies will go in and not be able to get out because they have a habit of flying/crawling up.
thanksNo problem I am not sure the vinegar trap is good for the little black flies but if they have red heads they are fruit flies.
Also if you are using some sort of completly enclosed area to grow in using a square of t-shirt stretched over the exhaust and intake ports will block obvious entrances for flies as well as spores and what not. I will know if this makes a difference because i am a compulsive waterer and itll be fun to see if i get mold at all. It does seem to trap the humidity inside the box.
Not sure ... Load up a picture before you spray I want to be absolutly sure before you put the repellant on. i have not seen what if any negative effects it has on pot.