Red Poison Automatic - Sweet seeds

I'm a noob at LST so I probably don't do it the right way, anyways i wanted to try so I did. 2/3 red poisons are LST. I made a beginners mistake and think I gave to much nutrition because I have burnt leaves. flushed it with just water and the situation is now stable. What do you guys think I should do? On the internet I have seen many people saying you need to cut the burnt leaves because the can rot. I've mainly seen this when people have fotoperiodic plants, this is an autoflower so I don't know if it it's a good idea to take a whole leave because the parts that aren't burnt are still functioning, they don't hang or seem dead or whatever. So what do you guys think?