Leaf' yellow spots

Kisskorv

Active Member

• Feb 22, 2020

• #1

Hello growers.
I'm att the end of V 1 veg.
Anybody knows what this yellow stuff that I got on my leaf?
I grow in soil in 11l pots under 600W HPS. Leaf temp 23-25C humidity 45-55%
PH 6.2 all the way.

 

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JoeBlow5823

Well-Known Member

• Feb 22, 2020

• #2

What soil/nutrients? 6.2 is a bit low I like to stay above 6.5

 

Snoopy808

Well-Known Member

• Feb 22, 2020

• #3

Whats the top/new growth look like. Its best to evaluate the whole plant not just deficient leaves. Looks like K+, Ca+ deficiencies in 2nd and 3rd photos. Maybe foliar burn from sprays? Could be pumping too much P+ at 6.2 pH.

 

Snoopy808

Well-Known Member

• Feb 22, 2020

• #4

That last picture the third one the veins are yellow thats Mg+ likely. One of the pics has cupping. One has the tip burn. Mg+ regulates water and evapotranspiration. Any taco or canoe leaves?

 

Kisskorv

Active Member

• Feb 23, 2020

• #5

Snoopy808 said:

Whats the top/new growth look like. Its best to evaluate the whole plant not just deficient leaves. Looks like K+, Ca+ deficiencies in 2nd and 3rd photos. Maybe foliar burn from sprays? Could be pumping too much P+ at 6.2 pH.

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Thanks for your reply. I folio spray with none pH water Evert Day. My water out the tap is about PH 7.5. My grow is 54 plats and all the other are all green and happy. I have 6 600W HPS with nine 11 L pots under each
Happy growing

 

Kisskorv

Active Member

• Feb 23, 2020

• #6

Next feeding' +tomorrw) I,'m adding P+K according to schedule

 

Kisskorv

Active Member

• Feb 24, 2020

• #7

JoeBlow5823 said:

What soil/nutrients? 6.2 is a bit low I like to stay above 6.5

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Tanks for Replay.
Golden Label specialmix. Nuts also Golden Label. Comoany from the Netherlands

 

JoeBlow5823

Well-Known Member

• Feb 24, 2020

• #8

Kisskorv said:

Thanks for your reply. I folio spray with none pH water Evert Day. My water out the tap is about PH 7.5. My grow is 54 plats and all the other are all green and happy. I have 6 600W HPS with nine 11 L pots under each
Happy growing

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Water has never touched a single leaf of these girls.... Personally I think spraying anything on your plants is unnecessary.

 

Kisskorv

Active Member

• Feb 26, 2020

• #9

Ok thanks for your advise. I only spray Them intill first flower spöar.
Happy growing