Yellow and brown leaves

2x2UkGrow420
2x2UkGrow420started grow question 6y ago
Hi, plants have got yellow with brown spots on old leaves at the bottom of the plant, researched and think it may be cal/mag deficiency but not sure, any help advice much appreciated.
Solved
Week 4
Leaves. Color - Yellow
1 like
Shagrath
Shagrathanswered grow question 6y ago
Hi there! To me that yellowing looks like the plant is just cannibalizing those leaves 'cos she dont need em anymore. The reason I feel like this is that only those few leaves seems to be affected and everything else is looking healthy. I think that if it was bigger deficiency you should see symptoms on more leaves than those few. Maybe keep an close eye on her and see if this spreads before giving something more?
2 likes
Complain
Selected By The Grower
DixonCider
DixonCideranswered grow question 6y ago
Hmm. Shagrath may be right on this one. However, Magnesium deficiency will present itself in the older growth first. I see that you are using a 3 part fertilizer now, I do like to add cal-mag into the mix for my girls.
1 like
Complain
Similar Grow Questions
Solved
BisEsKlappt420
BisEsKlappt420
What’s the problem ?Rqs Nl Auto week4 flowering BioBizz all mix biobizz nutrients What’s the problem ?
Leaves. Color - Yellow
Leaves. Color - Dark-brown
Leaves. Color - Black or grey
3y ago
2
2
Solved
Lena12
Lena12
Leaves are yellowVeg week 3 . Leaves are getting yellow.
Leaves. Color - Yellow
Setup. Lighting
6y ago
4
2