Rust/Brown Spots on Lower leaves?

[tomvh858]

This is my first post on these forums so let me first start by saying Hi. If you would help me diagnose my plants that would be great.

- This is my Kodiak Gold X SSH @ about 2.5 weeks veg
- There in ProMix BX with perlite added 5.5"X5.5" square pots
-Under a 4' 8 tube T5
- Im using Fox Farm Grow Big and Big Bloom at 1/4 dose on recommended feed schedule. They only get fed every other watering.
-The water being used is from Spring water jugs brought in the grocery store or tap water that was run through a water filter like a Brita filter.

Rust spots started small on lower leaves 1 week ago growing all over the leaf

I uploaded my pics but it won't let me post the URL in this thread for some reason?

"Your Post contains one or more URLs, please remove them before submitting your message again."

any suggestions?

 

[tomvh858]

I can't figure out how to post these picture but if you go in my gallery they are there.

 

[icon]

believe you need 5 post to post pics

 

[tomvh858]

 

[Care Free 1]

Hi tomvh858

I grow in organic soil, and that is one of the first things I watch out for after transplanting. When I get so called rust spots on my plants it will start on the lower leaves and slowly work its way up the plant.

I beleive it has something to do with calcium deficiancy, and I give the plants a dolomite lime feeding and it will stop almost immediately. Within a day or 2 no more rust spots and it seems to have stopped completely. I watch after every transplant for the signs, and it seems to work every time,

 

[tomvh858]

Hi tomvh858

I grow in organic soil, and that is one of the first things I watch out for after transplanting. When I get so called rust spots on my plants it will start on the lower leaves and slowly work its way up the plant.

I beleive it has something to do with calcium deficiancy, and I give the plants a dolomite lime feeding and it will stop almost immediately. Within a day or 2 no more rust spots and it seems to have stopped completely. I watch after every transplant for the signs, and it seems to work every time,

I don't have any dolomite on hand, and I won't be able to go to the hydro store till Monday. I do have fox farm tiger bloom which has calcium nitrate in it. Should I use this or wait till Monday?

 

[Care Free 1]

Hi tomvh858

I would wait until Monday. Most nurseries will have Dolomite Lime, but sometimes it's in pellet form. I will grind the pellets into dust with a coffee bean grinder, and add 2 tbls powder to a gallon of water, shake well and feed up to 1/2 gallon per plant depending on pot size.

 

[tomvh858]

Alright thanks for the advice

 

[firsttimegrower]

hey bro dont know where you are but i picked up a bag of lime rite dolomitic pellitized lime 40 lbs for like 4 bucks at true value hardware and used a coffee grinder

 

[sirgrassalot]

Pro-Mix has 2, yes two limes in one, I've never needed to add any extra lime even when reusing it twice. Don't use a brita filter. They also look over watered, wait until they dry out before watering. The spring water could be tap water as that's all I ever use is tap water. I also feed every watering with PM at least 10-25%