Second on the ladybugs. You have a grow house to contain them and makes them that much more effective. They cost about 15-20$ for a container of them and live for about 2 weeks, sometimes more.
I used neem oil on other plants and it leaves a residue that I didn’t like. It also raises the leaf Temps and blocks leaf pours/stoma. There are also home made remedies with water/soap/alcohol that are better for the plants.