Defoliation on Auto

It is better to practice LST when the stems are still flexibles so you can still do it but be carreful to not break the strem at his base ( it happens a lot with me for my late lst ) It's also better to practice defoliation during veg / 1st week of pre flower because in flowering she'll could nor recover from a hard defoliation. If you are planning to remove the leaves that are blocking light to lower budsite it's ok , if you air circulation is bad and your humidity is high then it's ok too as long as you'r not over doing it.