steamroller said:

Outdoors I have SNS209 recommended by @Heywood ,but fortunately have not needed to use it .
My understanding is that the SNS209 is natural and works on many pest.

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The SNS209 is a systemic treatment and takes a little bit of time to propagate throughout the plant.
This is a proactive, not a reactive solution. If you are waiting for signs of pests before you use it, you are doing it wrong.
You should actually use it from the time the plants are hitting their stride in growth (early veg), up through a few weeks before harvest.

It is simply Rosemary extract that the plant uptakes in very small quantities.
Bugs bite into plant's stalk/stem/leaf and get a mouthful of Rosemary.
From the bugs that I have spoken with, they find it to be very unpleasant and they move on to your neighbor's garden.

Cheers!

They’re doing better now. Aphids are gone.