1rst of all Boron almost never occurs in indoor grows. Just so you know boron effects the top part of the plant first, in Ben and My case our lower fan leaves where the first to be effected. NOT BORON:leaf:
ITS NUTE BURN or PH. I flushed for three days They were getting worse with every flush, now all new growth is coming in green with no burnt tips. too bad i figured it out this late. keep flushing and go to home depot and buy some super thrive they will come back. TRUST ME ben.
it is not mag. i have the exact same problem right now. mag def is shown BETWEEN the veins along with praying leaves pointing straight up. what we have is coming straight from the veins themselves. turn the leaf over and you will see that the veins are dying first. it is something else.... i am...
i think the problem here is not an abundance of nutrients but rather a cal/mag deficiency or nute lockout do to ph. has anything recently changed in your grow area i.e more or less of a nutrient, watering sched. And are your stems green or purple? let me know! ttyl
SO imagine a normal calyx and then there are mine. i noticed a ton of my calyx's swelling in just the fourth week of flower as it does when it is seeded. so i decided to pluck one off and see what was inside and low and behold there are two other calyx's with 6 hairs coming out of them...