Deficiency

[Whitewidowuk]

Hi guys what is this am 7 weeks into flower

 

[Hydrotech364]

Looks more like something was spilled...

 

[Whitewidowuk]

Looks more like something was spilled...

It’s not that friend it’s only on certain plants it’s the top 3rd of the fan leaves...

 

[Whitewidowuk]

Here they are

 

[Turbogrow]

Boron is what I thought as soon as I saw picture without even looking it up

Check it out

How to fix Cannabis Boron Deficiency (B) Pics & Symptoms

Boron deficiencies are rare and appear as brown blotches in the center of leaves. See what a cannabis boron deficiency looks like and learn how to treat it!

www.growweedeasy.com

 

[Whitewidowuk]

Boron is what I thought as soon as I saw picture without even looking it up

Check it out

How to fix Cannabis Boron Deficiency (B) Pics & Symptoms

Boron deficiencies are rare and appear as brown blotches in the center of leaves. See what a cannabis boron deficiency looks like and learn how to treat it!

www.growweedeasy.com

Can I add boric acid ??

 

[Turbogrow]

You could yes, iv not had the problem before so cannot advise exactly what to do to rectify. Are you on RO water out of interest?

 

[Whitewidowuk]

You could yes, iv not had the problem before so cannot advise exactly what to do to rectify. Are you on RO water out of interest?

Just use tap water.. al my other plants are fine it’s just 2 of them

 

[Kushash]

Possibly a calcium deficiency.
Could be a lack of calcium in the soil or a PH issue.

 

[curious2garden]

Possibly a calcium deficiency.
Could be a lack of calcium in the soil or a PH issue.

It's Ca but why is up to the OP to figure out

 

[Flowki]

How long do they have left?, it may be pointless to try and fix them now.

 

[Whitewidowuk]

How long do they have left?, it may be pointless to try and fix them now.

There in week 7 off flower

 

[Flowki]

There in week 7 off flower

Somebody may correct me but if it is a calcium def then it is likely too late to act now, at-least from the info I've read on how and when calcium is used.

Regardless, post what soil mix or nutrients you are using and people will be better able to help you avoid this issue next time.

 

[Whitewidowuk]

Somebody may correct me but if it is a calcium def then it is likely too late to act now, at-least from the info I've read on how and when calcium is used.

Regardless, post what soil mix or nutrients you are using and people will be better able to help you avoid this issue next time.

Yeah thanks I have calmag I’ve been giving them that for 3 weeks... think al use it from start next time