Cal/Mag leaf color?

[Wclazerdub]

Problem: light discoloration on some top leaves

Medium/grow method: coco/peat moss/vermiculite

Feed: and supplements used: dr earth grow and bloom amended at less than 1/2 strength. cal/mag/iron

water source: tap water not ph'ed

Strain/age: c4 and blackberry 3 weeks old

light used: 14 100 watt equivalent LED bulbs 30k and 40k

Climate: 75-80F RH: 55%

Additional info: used cal/mag/iron at less than 1/2 strength and topped with less than 1/2 strength dr. earth grow and bloom

 

[Proph]

I can't find any info online about Dr. Earth Grow and Bloom.. Only Bud and Bloom comes up.. Do you have a pic of the bag maybe?

 

[Wclazerdub]

Ya I was lazy when I typed that.

I ended up using some Cal/mag/iron at 1/2 strength on the two with discolored leafs.

 

[Wclazerdub]

They don't look too bad.
But there is definitely something going on.
My setup is terrible. I have to upgrade for sure.

 

[unseeded]

I ph everything in my similar set-up to exactly 6.5 at this stage, could be fluctuation. are you using organic cal-mag? ya they look ok overall. I like that you gave a half feed I'd do the same and give it a full top dress in 2 weeks at 50/50 grow and bloom trying to avoid any deficiency when it switches gears, maybe feeling out 1/4 strength organic calmag consistently for starters until it tells me otherwise..

 

[Proph]

Ya I was lazy when I typed that.

I ended up using some Cal/mag/iron at 1/2 strength on the two with discolored leafs.

Which one of the bags are you using to feed with? Or are you using both? There really shouldn't be a need for Cal mag and all of that jazz this early on.. Definitely no need for any type of bloom feed.

 

[unseeded]

I agree Props, could also be something down below starting to feed on the roots, I'm adding nematodes and sticky traps. I use Gaia Green which is similar nutes. would I be wrong to say the accepted practice is top dressing grow and bloom at ratios 75/25, 50/50/, 25/75? and for me a half strength top dress week 3 or 4 of mostly grow. again could just be any environmental fluctuation but most likely ph

 

[Proph]

I agree Props, could also be something down below starting to feed on the roots, I'm adding nematodes and sticky traps. I use Gaia Green which is similar nutes. would I be wrong to say the accepted practice is top dressing grow and bloom at ratios 75/25, 50/50/, 25/75? and for me a half strength top dress week 3 or 4 of mostly grow. again could just be any environmental fluctuation but most likely ph

It's pretty early on for that as well.. Plus you'd be able to see something crawling around the soil and on the plant if there were bugs doing that type of damage. I'm leaning towards over feeding.. Maybe a nute lock out caused by an excess of some sort.. But need more info on how they are being fed first. If he's only feeding out of the Bud and Bloom bag, that's most likely the culprit. That is what you use once your in flower. Not on a seedling.. I think it has to do with the feedings.

 

[Stooby snacks]

Looks like thrips to me.

 

[Wclazerdub]

yesterday i watered with less than half strength cal/mag and top dressed at half strength 50/50 grow and bloom.
this morning they doubled in size and look fantastic.
who knows