I am growing white widow they have only been flowering 21 day and im trying to identify whats really going on with like 4 of 12 plants ? they seem to be yellowing at the top but green at the bottom around the second or third node me fan leaves are getting brown spots ? my tent says at78*lights on 64 lights out <humidity is 45 to 60> can someone please give me some insight !!! oh my tent is 4x8x7 with two 600 watt aircooled hoods
can some help me please !!!!!!
- Thread starter rugrat
- Start date
Picture #2 looks like a Ca/Mg deficiency but honestly I'd wait until some real grow gurus get here. While you're waiting you might want to give them a little more information on what you are feeding etc....
samster123
Member
Yellowing of the leaves can often be because of nitrogen deficiency, or because the plant isn't getting enough nutrients. Often in flowering leaves begin to get yellow because all of the energy is going to producing buds, not focusing on fan leaves. Pick them off, get a fish fertilizer with a NPK ratio of 5-1-1 with nitrogren being 5, it'll fix the energy deficiency causing the yellowing.
GanjaHome
Well-Known Member
this is not Nitrogen look at the hole plant not just the affected leaves!
GanjaHome
Well-Known Member
Plausible! i'll give it some Cal Mg supp. this will help!
GanjaHome
Well-Known Member
give it some more Cal Mg and put the light higher. me i'll chop 'em not good leaves and watch symptoms.
im using ff nute ph is like 6.4 im growing in the ff ocean forest i have the lights 12" ................
should i try flushing them cuz its 4 out of 12 ......h202 spray/feed ? whats that ? please explain.....im sorry im fairly new to this and i really want learn this i love growin not for profit but because i love smoking
tw1st3dm3ntal1ty
Active Member
looks like cal/mag to me
herbbilly
Active Member
H202 will help a sick plant http://www.using-hydrogen-peroxide.com/gardening-with-hydrogen-peroxide.html. Look at fungus pics disregard powdery pics you'll find symptoms
Oo S0uP oO
Active Member
This is 100% Cal/mag and heat stress. For sure. You can help immediately curb the cal/mag by making a foliar spray, just be careful being that you are in flower (you dont want mold) you should also be adding cal/mag to your regular feedings. You also need to lower your temps at canopy. Do you see how the edges of your leaves look like up turned alligator teeth? This is the plant attempting to reduce surface area of exposure to reduce excessive transpiration due to heat. In the future both of these issues can be slightly strong walled with the use of a silicate product such as protekt by Dynagro. Hope this helps some, goodluck.-S0uP
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