At week 3 of flower this happens every time. Any ideas?

M

MA MED Grower

Well-Known Member
Hello. I run perpetual. Every other week I put 3 plants in flower. For the first 3 weeks they are healthy and deep green. At week 3 I get yellowing and dark brown spots on my leaves and eventually they die off. Very frustrating and don't know why or what to do to fix this, a little about my room.

Sealed room 12 x 20
9k watts
2 mini splits
Fox farm nutes
Ocean forest soil
Tall Boy (filter water)
Cal-Mag
PPM's are right for the stage (weeks) plats are in
PH is 6.3-6.7 before adding cal-Mag
Co2

If you have any questions to help diagnose this issue please ask. Attaching a few pics from week 3 for a few plants to week 5 for a few others

Thank you!,,,
 

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Woyaboy

Woyaboy

Well-Known Member
My guess is nitrogen. Some people cut back on it TOO much. They still need it to stay green.
 
Gary Goodson

Gary Goodson

Well-Known Member
MA MED Grower said:
Hello. I run perpetual. Every other week I put 3 plants in flower. For the first 3 weeks they are healthy and deep green. At week 3 I get yellowing and dark brown spots on my leaves and eventually they die off. Very frustrating and don't know why or what to do to fix this, a little about my room.

Sealed room 12 x 20
9k watts
2 mini splits
Fox farm nutes
Ocean forest soil
Tall Boy (filter water)
Cal-Mag
PPM's are right for the stage (weeks) plats are in
PH is 6.3-6.7 before adding cal-Mag
Co2

If you have any questions to help diagnose this issue please ask. Attaching a few pics from week 3 for a few plants to week 5 for a few others

Thank you!,,,
Click to expand...
What fox farm nutrients are you using? Just the trio or all the other stuff? @RM3 is correct, I bet you switched to bloom fertilizer and even added the pk boosters.

You want to use veg fertilizer for the 1st 2-3 weeks of flower depending on strain. If you give them too much pk too soon, they will yellow up on you.
 
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M

MA MED Grower

Well-Known Member
Gary Goodson said:
What fox farm nutrients are you using? Just the trio or all the other stuff? @RM3 is correct, I bet you switched to bloom fertilizer and even added the pk boosters.

You want to use veg fertilizer for the 1st 2-3 weeks of flower depending on strain. If you give them too much pk too soon, they will yellow up on you.
Click to expand...
I'm using all liquids and powders. The only other thing I add is cal-mag. When I grew at home under 1k never had an issue. I'm in an industrial building using a tall boy for water. I've never seen this happen at home but now I see it all the time.
 
Gary Goodson

Gary Goodson

Well-Known Member
MA MED Grower said:
I'm using all liquids and powders. The only other thing I add is cal-mag. When I grew at home under 1k never had an issue. I'm in an industrial building using a tall boy for water. I've never seen this happen at home but now I see it all the time.
Click to expand...
Yea that might be the problem then, you shouldn't be adding the powders just yet.
 
*BUDS

*BUDS

Well-Known Member
Your nutes are too strong either in veg or early flowering and your losing leaves by burning.
This will affect the final weight as there are much less 'solar panels' when you need them most, in flowering.
Back off the normal feed to half and see how that goes from now on and next grow, nothing you can do now the damage is done.
 
M

MA MED Grower

Well-Known Member
*BUDS said:
Your nutes are too strong either in veg or early flowering and your losing leaves by burning.
This will affect the final weight as there are much less 'solar panels' when you need them most, in flowering.
Back off the normal feed to half and see how that goes from now on and next grow, nothing you can do now the damage is done.
Click to expand...
Thanks. I just fed 3 today that I just put in. Tried it at half to see if it works. I'm getting 16+ zip per plant but with no destruction I'm sure it will be more
 
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