Brown spots on leaves and some yellowing late in flower bud porn inside!

[danklover79]

Sorry had to upload the pics real quick

 

[donpaul.p]

yep i agree, it does like like some sort of def, ill post a comment in my journal and see if anyone can come across and give a good idea of what it is and how to solve the problem,

its getting worse though so we need to get it under control, checking the ph run off would tell us if anything is locked out,
ill see if i can bring anyone over to have a look, ill post the link in my journal, ill do it now

msg posted, hopefully someone who has had the same problem will come along and give some idea on what the true cause is and how you go about getting it sorted,

 

[KingJohnC]

here is a cannabis leaf deficiency chart

here is the Cannabis Plant and Pest Problem Solver

Cannabis Plant and Pest Problem Solver - Pictorial

 

[donpaul.p]

got the link in my sig for that as well, its a great guide and covers many problems, but finding someone who has had a similar problem and solved it will give a better idea of how to deal with it,
guides are great but nothing like someone who has had the same problem and solved it,

reps for the pics kingjohn,

 

[danklover79]

Thanks king does it look to be a K def to you guys? I used nutes the last watering but the FF big bloom only has a small value of K less than %1. Can I still add some K if I used nutes last time or should I flush again and water with molasses like I planned? I am about to water as her soil is almost dry so I could really use some prompt assistance if possible.

 

[KingJohnC]

i think the FoxFarm 3 part formula relies on using the Gro Big and Tiger Bloom for its potassium. i believe your plants need some potassium.

 

[danklover79]

Do you guys think a double dose of molasses would be enough K? The label says 3% daily value and I don't have anything else with K right now. Also should I pull the affected leaves? They are now curling badly and are pretty damn close to dead.

 

[KingJohnC]

how much would your double dosage be in either millilitres per gallon or in teaspoons?

 

[danklover79]

Like 4 teaspoons king sorry I finally got a proper reflector today and was busy hanging it.

 

[KingJohnC]

4 teaspoons should be fine added to water for a nutrient feed.

 

[donpaul.p]

ive used molasses this grow round and some of my lower leaves had the some brown spots on one of the plants i got in middle of flower, so ive started giving molasses to help sort it out, its only on the lower leaves and i noticed it early enough so mine will be ok now, just not sure how much i can push the molasses, some say 2 table spoon per gallon and some say just 1, ive started with 1tbsp and will up it if the plant needs it,

 

[FrankFoster]

I would say that it appears to be a zinc mobile and Manganese Immobile problem. They get locked out when the P-k goes down low. manganese is only mobile when there is active k,potassium and mg(epsom).

I would blast it with 500ppm 5 gallons of chem ratios 0-3-4. That way you get the p-k and all mobile lower elements. Or you could starve her, a watch her decline while you snip and trip. ltr.

 

[donpaul.p]

thanks for the info,

 

[Scarfinger68]

Some trichome pictures