Brown Spots and Yellow Leaves

High, This is a manganese dificiency in the early stage. The cause of this dificiency could be pH issues or overfeeding. You can measure the pH from your soil to make sure that this is not the cause. I will explain how to do this and if the pH is in the right range then you need to flush your soil so you can start giving the right amount of nutrients again after doing this. But I will explain that after I told you how to measure pH in soil, just follow these steps. Your pH should be around 6.2. 1. Place soil sample about ¾ full in sample jar and add distilled water to cover soil. 2. Cap the jar and shake the soil vigorously a few times. 3. Let mixture stand 10 minutes to dissolve the salts in the soil. 4. Place the pH tester into the wet soil slurry. 5. Measure pH and record measurement. If the pH is in the right range then flush out the nutrients with a good flush of your soil and I will explain you how you can do that the best. You can do this flushing by slowly pour water pH 6.2 onto the top of the soil, allowing it to drain freely from the bottom of the pot. Pour slowly, so the water doesn't overflow from the top of the pot. Use approximately four times the pot's volume in water to flush the soil. For example, use 1 gallon of water for a 1 quart pot. After the flushing you need to let the soil (almost) dry out completely. From there you can start giving water with pH 6.2 and nutrients but do not exceed EC 1.8 to make sure that you don't overfeed them in their last weeks. Happy Growing! 😋

Wow... yeah, this is definitely a nute problem and one that I think is fairly uncommon - I think it's a manganese deficiency which is usually VERY hard to diagnose at the beginning and folks run around thinking it's something else and trying this and that with no result. First of all, manganese is not absorbed by the plant if the pH is higher than 6.0 - so getting your pH down is going to be critical. If you don't have one, you've GOT to invest in a pH pen so that your readings are as accurate as they can be.... a deficiency of manganese can also be caused by iron locking it out - so you're going to have to flush with 6.0pH'd water... then go gently with your nutes at 1/2 strength. I've found this excellent article (it's fairly short) on this deficiency and what to do on the RQS site... do read it, follow their instructions and good luck my friend! https://www.royalqueenseeds.com/blog-manganese-deficiency-in-cannabis-plants-n577

Looking like a medium issue now to me, ranging from to much of something or incorrect PH and causing a lock out. I would invest in a EC pen and start to monitor your feeding solution to prevent this. Easiest option might be to just give them water and nothing else for a bit let them use up whats in the soil. Good Luck! ***disclaimer, multiple people are answering all questions as there is a contest called GOTM, when a user is selected as the answer they get a point. Please see the contest page for information regarding the details: growdiaries.com/giveaways/GotM-August-2022 Please note, when you reply to anything on the questions part of Growdiaries website, no one will be notified of this. Not even if you use a "@" tag in their name. Best to reach out to them in DM using your inbox, it can be found in the bottom right hand corner of the site. It's the small paper airplane button, it will be highlighted green if you have new messages***

Check my diarie from this and last week for more info