Crumbly fresh leaves (week 2 flowering)

With 'crumbling' I'm referring to how it looks to me (curling in a random way up/down/sideways) It's looks to me like mutated seedling leaves. Besides, I didn't bother with nutrition (apart from biotabs and all-mix soil) last year, not really planning to do that this year, unless the ladies show signs of hungriness. The treatment will be exactly the same, just spraying cannacure weekly this time (as you can see there's still some bugs despite that) I topped this one because I wanted to test the difference between topping and LST, just to confirm my suspicions. Extra info (confirming the selected answer): It was very very windy the last few day, and I'm on the 4th floor. Also: it went from about 17 degrees to 23-25 very quickly. Watered them this morning, I think this will recover itself.

I'm confused, quite frankly... your use of the word "crumbly" means texture, something that is felt and since I can't actually FEEL the leaves, I don't know what you're talking about. Nothing looks particularly dry but is that what you're experiencing? I'm also confused by the absence of nutrients in your grow. I had to look up the two items you're giving them - the mega worm and the boom boom spray - both of which sound like decent supplements to give but there's no BASIC nutrition... you're improving your soil with the mega worm and adding some micronutrients with the boom boom spray - but where's the NPK? You're growing an autoflower here and they don't take well to severe methods such as topping ... but what's done is done. The hard bending of some branches (HST) is tolerated and usually doesn't have an adverse affect on autoflowers but LST is a safer way to go. I would be giving her a lot of bloom nutes at this point to give her some substantive nutrition as she goes further into flower. Good luck!

Could be overfeed of nitrogen, could be heat damage from too intense light or hot air, could be first signs of root bound or just overheating roots. My guess : Overwatering and hot sun boiled them/roots a bit ? You have some bugs, so preventional sprays for plants immune would be good too. Could be a lot ;)

I don't see anything wrong with your plant. keep in mind no plant has 100%perfect leaves 100% of time, mutations and malformations here and there depending phenotypes is something pretty common Happy growing