I am a strong believer that constant air movement prevents/eliminates a vast majority of insect/fungus problems. I have four fans in each of my greenhouses and two, dual-fans plus two ceiling fans in the solarium. I have plenty of coverage in the greenhouses but can't get the same air-movement in the solarium. The solarium is about 4x larger than each greenhouse. I have 10x the number of insects in the solarium, at least according to what I see stuck on those cards. Those yellow sticky cards quickly got covered when I first put them out in the solarium. My observations are just that and certainly have no scientific basis.

Very interesting. I'll add more fans. I thought there was enough air movement, but maybe not. My sticky cards are rapidly getting full, but there are plenty more around not caught yet.

Have you tried Neem oil yet? You would want to use 100% cold pressed neem oil. It's sorta pricey but not overly expensive. But above all it does the job. They are offered online all over the place. I got mine at Monster Gardens. I used the neem oil with E-Z wet (which is just like regular insecticidal soap) and misted all the leaves tops and bottoms. Did the same thing 3 days later and then 5 days later after that. All my white flies and aphids are gone. I can't find a single one anymore. The great thing about 100% cold pressed neem oil is it is all natural. No chemicals that will hurt the beneficial insects like your ladybugs. I did a lot of research on this and glad I bought it. It has saved all my plumerias in my studio which was infested bad with aphids and white flies.
Here is a few videos you might want to check out to see for yourself.

https://www.youtube.com/watch?...
https://www.youtube.com/watch?...

On this video fast forward to 10 minutes and 30 seconds into the video.
https://www.youtube.com/watch?...

Hi Lucky, thank you. I had just read about it yesterday. I have some Neem I've never used but it is call Neem leaf polish. I'll have to see if it is 1000% Neem with no other ingredients. I'll watch those videos soon. Need to eat breakfast!