Looks like nitrogen deficiency, and possibly Mg deficiency, The plant leaves normally turn yellow when u get to the end of flowering because of the nitrogen uptake to the buds, but then u have burns in the leaves that are cause from nutrient lock up, that happens when u have an uneven amount of nutes, like too much Ca and not enough Mg, this happened to me a while back, i flushed the nutes and roots then made sure i had the right amount of everything. Ph can also be a huge problem because the roots will absorb different minerals at different Ph, so u can start your ph low at 5.3 and let it rise to 5.9 and then pull it back down again, the wonders of HYDRO!!
JackdaWack Reviewed by JackdaWack on . Tip Curing up? wus up yall i got my baby to flower to the 4 week (week 7 on chart) and now i see the tip curing up and getting rusty and dry. im flowering under a 1000watt and using a DWC. my ph is at 6.5 after i tested it and my Nuts is GH 3 part. i know that u gotta lower the N and raise the P as it flower. can i b giving it to much N still ? i gave it 5 ml each gallon and after i seen the chart on this site is asking for 3ml. can that b the problem ? i will get pic soon Cannabis Forums Message Boards Rating: 5