About two weeks ago, my fan leaves started turning yellow. Not from the tips exactly just yellowing in general. I hoped I just hadn't been feeding enough N so I gave them a nice big dose about a week ago. The buds are still a nice gark green but the further you get away from them the more yellow it gets and 90 % or the fan leaves already died. The buds are still relatively small. I'm assuming this is going to kill my yield. The plants are too big for my pots so that could be it and I don't check pH so that could be it too. Could heat do this? too much light? (600w in 2X8 ). do you think this will slowly happen to the buds too if i don't fix it?
all my fan leaves turned yellow and died. I'm in week 4 going on 5
- Thread starter Dako
- Start date
JealousGreen
Well-Known Member
Wow.. lots of variables..
Could be heat, light stress, under fed, ph problem, or something else entirely.
How far into bloom? What kind of nutes?
Could be heat, light stress, under fed, ph problem, or something else entirely.
How far into bloom? What kind of nutes?
Maybe you gave it too much N? (which could make it struggle to feed because of nutrient-ratio inbalance in your medium. But this lockout could be because of PH too, of course).
Also, you say you are 4 weeks into bloom. At this stage, a lot of plants crave for Mg, I give mine Epsom salts around this time-period. Try foilar Mg if you're unsure (little change of overdose on Mg if not in medium).
Maybe try watering less, overwatering often results in yellowing. When you think it's dry, maybe wait another day.. and observe.
Good luck.
Also, you say you are 4 weeks into bloom. At this stage, a lot of plants crave for Mg, I give mine Epsom salts around this time-period. Try foilar Mg if you're unsure (little change of overdose on Mg if not in medium).
Maybe try watering less, overwatering often results in yellowing. When you think it's dry, maybe wait another day.. and observe.
Good luck.
jawbrodt
Well-Known Member
One more question.... Have you recently let them get excessively dry? Sometimes during flowering, if they are allowed to dry to the point of drooping, they'll sacrifice a shitload of fan leaves, not long after they've been watered again, and have recovered. It's worse when they're borderline n-deficient.
Other than that, it sounds like they simply went n-deficient too soon. That could be from underfeeding, or the PH being off, making nitrogen unaccessible.
Other than that, it sounds like they simply went n-deficient too soon. That could be from underfeeding, or the PH being off, making nitrogen unaccessible.
zem
Well-Known Member
ah well, on the bright side, the buds will be very tasty. I've had this happen when i had to hand-water some plants, while others were in flood table, i was under watering, fans dropped and buds were much smaller than rest of plants but they were very tasty!
JealousGreen
Well-Known Member
The smaller buds from an underfed plant will always be better than the buds from an overfed plant.