Neem oil is great, the best, wonderful, I love it, I mist it on my plants every day. If you look in my log you might notice they are very glossy... it's the neem.
I've got thrips and they can't do any damage to my neem-treated plants, lol!!! Suckers!
Safer Soap is fine but IMO neem is better for prevention of every problem known to gardeners!

BTW the product called 'fungicide 3' in the turquoise bottle at walmart/home depot/lowes is actually neem oil, much cheaper than any other product. But I recently switched to Green Light because it's organic.