Trichomes so slow to go brown

If you're leaves are still green and you still see new pistils emerging, you probably need to keep waiting. If all of the pistils are brown, the leaves are turning brown or yellow, and you still don't see amber trichomes, look at the trichome heads and make sure they haven't fallen off due to waiting too long. I'm pretty sure I made that mistake on my Tangerine Dream Auto. In the same tent I had a Blueberry Auto finish, and about the same the tangerine looked good, but still didn't have amber trichs. By the time the other two plants finished, the Tangerine still didn't have amber, infact I'm pretty sure it didn't have many trichome heads left and smoking it was underwhelming. Still okay, but the flavor and strength were definitely diminished. TL;DR: that strain might not get amber trichomes. Harvest before the plant dies.

Not really— wait another week. Can’t speed it up— all suggestions are bro science

Best to let time do it… but with autos I have not seen them get much amber maybe I just never waited long enough for more than 15%amber.