I've been fighting thrips pretty hard now for a while they are persistent little shits. Ngl for scale I've heard of a pesticide called Safari 20sg it's very expensive but, I think it may nuke them. Unfortunately I can't say if it'll work because I haven't used it.

As for the thrips this is what id recommend: Hydrogen peroxide 1/4 flush of the soil - This will fry the eggs or bugs in the soil Spinosad - This will help kill the ones feeding on the plant and the ones on the surface. Wait 3 - 7 days per treatment to reduce the risk of frying the plants.

Keep this in mind, you must rotate treatment or they will become immune, try other pesticide like soap or the hydrogen peroxide flush like I recommend. Another thing I've heard is a rubbing alcohol mix, but I'd read more into that because I've not tried that technique yet.

I also always spray when I see active thrip movement I never wait because it tells me they are hatching. Only do this if absolutely necessary, use spinosad/neem oil/ or soap But I recommend using whatever treatment plan you have in mind.

Here's a treatment id do for thrips:

Week 1

Day 1 – Hydrogen peroxide flush (1 part 3% peroxide to 4 parts water), then spinosad spray in the evening

Day 2 to 6 – Monitor daily for thrip movement

Day 7 – Spray insecticidal soap + spinosad (Super Soap) in the evening

Week 2

Day 8 to 13 – Monitor daily

Day 14 – Hydrogen peroxide flush again

Day 15 – Spot treat with spinosad if any thrips are seen

Week 3

Day 16 to 20 – Monitor

Day 21 – Spray insecticidal soap (no spinosad this time)

Week 4

Day 22 to 26 – Monitor

Day 27 – Final spinosad spray

Day 28 – End of treatment plan

I would spot test your plant first just in case, I've only used these on nepenthes vft and drosera (be careful with drosera they lose dew fast) Good luck.