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Leaf issue
420Hydrostarted grow question 5 years ago
Not Sure whats going on with leafs...They start out yellow on edges and get worse always seems happen late flower...was thinking maybe lacking cal-mag..It's not a ph issue...Might try to up cal mag ...not 100% sure what it is if anyone has any ideas please leave in comment (would
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Greenbean15answered grow question 5 years ago
Marijuana is an annual plant that only wants to live, breed and die. Think of it like a plant version of Mr. Meseeks... it only wants to live long enough to carry out its function and die. Cannabis produces trichomes to get pollinated and to protect itself from pests during bloom. It’s perfectly natural for fan leaves to die back in flower, especially in later flower.
Looking at your diary, I think your air temperature may be getting too high and possibly fluctuating during the day. I know in my tent if the air temp gets above 80 I typically see signs of heat stress. At week 14 I can see a few burnt tips and at week 15 I see additional signs of possibly nute burn looking at the leaf tips and edges. It could be a cal/mag deficiency... but you appear to be already feeding cal/mag. If you’re using tap water, I really don’t think this would be an issue... especially in Oklahoma with all the minerals in the water.
Best of luck!👩🌾🏼🌱
Kayaboyanswered grow question 5 years ago
Potassium (K) deficiency is what i see on big leaf bro. Brown edges and leaf tips burned.
Also a leaf on the background also shows heat/light stress signs with their edges going up which in this case the problems will start to show up like nute lock and also at the same time deficiencies like on the big leaf, disease prone and hard to control if late stage of flowering....if you are late in flowering just take it down before you burn the whole terpenoids flavonoids etc and miss on the flavors and taste...i had this issue also..i smoked a bud 4 weeks before the problems and it tasted/smelled aaaand looked 60% more than my after stress bud...so chop it early to avoid pest mites etc...my humble opinion ;) peace xxx
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