Outdoor House flies hovering around upper leaves, help!

[mindfulinventor]

A thin layer of diatomaceous earth over the soil will help thwart them. It cuts them with its micro edges.

You can also put out dishes of apple cider vinegar with a little dish soap. Bugs love it, and the soap reduces the surface tension so they drown.

Thanks a lot! I will try that. The infestation seems to still be pretty small. All three young plants which would suffer the most from these pests seem to not be infested yet so I will hope for the best.
I have another plant indoor under a 300W COB LED and despite her being the oldest, my first outdoor grow gives me so much more struggles already .
The gnats probably showed up because I did not let the soil dry enough, so most likely my bad anyway.

 

[Bill.de.Cat]

Sorry to bother you again, but I am pretty certain that something like fungus gnats now started to infest the older plant. I have 5 plants in total on that balcony. 3 that just have like 4 true leaves and two that are in full flower. If you closely look at the soil of one plant you see like two or three small black flies hopping around. The plant most likely has like 3 weeks or so until potential harvest. Should I treat the soil with neem oil or is it enough to let the soil dry out between watering? The infestation cannot be progressed that far since the flies only started showing yesterday. Other 4 plants do not show flies around soil aswell.

Always have the yellow sticky traps handy for my tent....just back from the shed out back to find my pack of them.

Only two left, gotta remember to buy more.

 

[Mañ'O'Green]

Yes I moved them a lot for the last two days. I was pretty sure that there are no male plants of any kind even remotely close. Does it any harm to them if they change color due to moving them?

Pollen can travel MILES.

Use mosquito dunks for fungus gnats. Stir some into your water and water the top few inches with it every 3 days for 3 times.

 

[mindfulinventor]

Pollen can travel MILES.

Use mosquito dunks for fungus gnats. Stir some into your water and water the top few inches with it every 3 days for 3 times.

Thank you for your input, I do know the ability of pollen to travel some pretty nice distances. However there is no hemp farm, not even in a perimeter of like 100 kilometres. Afaik male pollen can travel like 10 miles? I am like 95% sure that there are no male plants in this distance, obviously I could be mistaken but well. There is a plant that looks like this for approx. a week now, no seed development yet. Do you know how long it takes for pollinated plants to produce seeds?

 

[mindfulinventor]

Pollen can travel MILES.

Use mosquito dunks for fungus gnats. Stir some into your water and water the top few inches with it every 3 days for 3 times.

Someone stated earlier that if they touch something due to being carried around this can happen aswell, is there a way to further prove that pollination happened or do I just have to wait it out? Only the top and outer pistils have changed colour like that. Most other pistils remain fully white.
We had a few sun intensive days last week, could be heat related aswell no?

 

[Mañ'O'Green]

Someone stated earlier that if they touch something due to being carried around this can happen aswell, is there a way to further prove that pollination happened or do I just have to wait it out? Only the top and outer pistils have changed colour like that. Most other pistils remain fully white.
We had a few sun intensive days last week, could be heat related aswell no?

Any part of the plant can bruise with a hard enough bump. The pistil is a sex organ that matures to dry and shrivel if not pollinated. The color is strain dependent but climate can also influence the depth of color achieved. The pure white are looking for love . The darker ones will not reproduce.

 

[mindfulinventor]

Any part of the plant can bruise with a hard enough bump. The pistil is a sex organ that matures to dry and shrivel if not pollinated. The color is strain dependent but climate can also influence the depth of color achieved. The pure white are looking for love . The darker ones will not reproduce.

Ah I see thank you. I guess the explicit changing in color into orange-ish brown due to pollination can only be triggered by pollen that are actually able to pollinate the plant (male cannabis plants) and cannot be fooled by some foreign pollen that just happen to swing by right?
If they really turn out to be pollinated that truly would be a pity, but at least I know that my area is not safe for outdoor grows .