Hey if you are really in week 6 of flower you can still take action in against the flies. These plants should stand for 4-6 more weeks and that's enough time for white flies to really become a problem
THey lay their eggs by the 100s, I would not cross my fingers. I had a massive infestation on strawberry plants and laid waste to the white flies with water + green soap + methylated spirit. That's outdoors where they have predators
They have soft bodies and are mega stupid, loads of things will kill them but as always the eggs are the problem.
Vacuum them up as good as you can. Hang sticky traps, flies will fill them completely if they manage to reproduce well. I have read that a Dr Doom pyrethrum fogger is effective and won't affect buds. Not available for me but maybe you are blessed. Hydrogen peroxide mixed with water can be sprayed safely. 35% at 7ml/L. Some people report using neem oil until late in flower, others say it should not be done and that it affects flavor. Trim the bottom 1/3 of your plant because the lower leaves are an invitation for pests.
Good luck, beautiful grow
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