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Black Flies


Island Lifer

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I have an Auto growing mostly indoors when the weather isn't great, Outdoors in the sun. Its about 5 weeks into veg and it's a really healthy looking plant at this stage, lots of potential. 

Today I noticed there were around a dozen black flies on the leaves, just chilling on the underside of various leaves. They're not massive, about 5mm in length. I managed to squash them all but expect more to come.

Should I be concerned? Are they laying eggs that will eventually overwhelm the plant or are they nothing to worry about?

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Going in and out with the plant,it's to be expected. If it's not in flower you can spray neem oil until flower starts if it's bothering you ,if it's mostly indoors it should do the job,while your at it you can drench top few cm of compo as well if you suspect something moved in.

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