can anyone help me out with the problem on the pictures? One of the pictures shows a bio insecticide I allready tried twice, but it doesn't help.

I don't know what kind of pest it is nor what I can do to remove it. It regards pepper plants, I took inside to overwinter. I am hoping to put them in my greenhouse when it gets warm enough and get some nice peppers of them like last year.

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Update: Trying to find out the color of the flies I took a new picture; I found another critter; maybe these are aphids? I am not at home right now, but this evening I will check again if I can find out the color of the flies. To be honest, I think the original pest is indeed some sort of white fly.

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Update: I checked again...I don't see any white flies fly away when I get close. I do see white/yellow non flying bugs; I think those are aphids. The white dots on the leaves in the pictures are already dead...I think also aphids, but I am not sure. I also noticed black flies above the ground. They fly away/crawl around when disturbed. I think those are fungus gnats. I guess I'll just give my plants another shower of my bio insecticide, :-(

  • Have you tried to give the plant a quick shower? The photos are a bit blurry, but they might be already dead.
    – Stephie
    Feb 22, 2020 at 10:44
  • I mixed the bio inseticide with water and indeed gave the plant a shower, but I see some move, so they are not all dead
    – Tom
    Feb 22, 2020 at 11:27
  • Ah. Thanks for the update. So it seems your insecticide does work at least a bit.
    – Stephie
    Feb 22, 2020 at 12:00
  • What color are the live ones? Do any of them fly when disturbed? Feb 23, 2020 at 1:13
  • I will check again this evening for the color of the flies...for more details...I updated my post.
    – Tom
    Feb 24, 2020 at 9:08

2 Answers 2


I always like to add that the soap will kill them on contact, so you can rinse the plant thoroughly immediately after treatment.


Silverleaf Whitfly Update: as well as aphids they lay eggs on the underside of the leaves and if you disturb them they fly away

don't use any chemical sprays as they become used to it and if only makes problems worse.

1 teaspoon liquid soap 1 litre of clean water optional ( one drop of neem oil)

make a soapy water solution using nontoxic washing up liquid and water spray all over the plant even underneath every leaf if the plant is outside the rain will flush all the soap away otherwise just rinse it afterwards.

to deal with the adults you need to use yellosticky paper traps as they get stuck for good.

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