Another Leaf Problem Thread if care to help!

[djlifeline]

Hey RIU.

4 plants 3 diff strains currently going and this problem only on my G13 Auto Pineapple Express Fem's.

Light: 400w Dual Spec.
Soil: Golden Mix Organic (Same as Bio Bizz All Mix pretty much)
Age: Not sure... Late in flowering. Maybe 2 weeks left max.
PH: 6.5.
Temp: Un sure but not hot at all.
Nutes: 5ml per litre of water of Bio Bizz Bloom.

Leaves are black spots and going from green to light green then brown and then crisping up.
I thought was a deficiency.
Fed. Still not got much better. Heavier feeding required or over fed or lockout?

Help.


Thanks.

 

[Ganjarob]

P and K are too hot, back off your bloom feed slightly. The burned tips are a sure sign that you are over feeding. Here is where it gets a little tricky, your plants are N deficient and need a micro supplement like calmag. The yellowing leaves and spooting are proof of that.
when you increase your P and K levels your plant needs nitrogen to assist the plant in making use of those nutes. Thats why many growers notice their leaves yellowing right after they use a bloom booster like koolbloom or bud blaster. the trick though, is to use just enough nitrogen to keep the leaves from yellowing. too much N and it will hinder bud production.

so: less bloom food, more nitrogen and a micro supplement. if you use cal-mag, use 1-3mL per gallon to correct deficiencies.

hope this helps...

 

[djlifeline]

Thanks man this helps somewhat. I was mixing in few ml of Bio Grow too but I guess just havent lately.
So what would you do?
I have no cal-mag atm (night time here)
Get some tomorrow? Light cycle just come on.
Or just flush and re feed with some pretty much plain watering with a tad big of Bio Grow?

 

[djlifeline]

Bump. Any one else confirm or deny this? Open to suggestions. Also suggest my next move please.

 

[skinitti666]

View attachment 1989070i agree with him and also check up under the leaves for brown spots if theyre under there you might have spider mites as well this should fix u up

P and K are too hot, back off your bloom feed slightly. The burned tips are a sure sign that you are over feeding. Here is where it gets a little tricky, your plants are N deficient and need a micro supplement like calmag. The yellowing leaves and spooting are proof of that.
when you increase your P and K levels your plant needs nitrogen to assist the plant in making use of those nutes. Thats why many growers notice their leaves yellowing right after they use a bloom booster like koolbloom or bud blaster. the trick though, is to use just enough nitrogen to keep the leaves from yellowing. too much N and it will hinder bud production.

so: less bloom food, more nitrogen and a micro supplement. if you use cal-mag, use 1-3mL per gallon to correct deficiencies.

hope this helps...

 

[djlifeline]

I did check for spider mites. Nothing. I need to get some that!