Educated guesses only please

[MrFishy]

I've been growing forever but am seeing something new to me. The pics are of a fan leaf off a 3-4 week old Himalayan Gold, taken by clone from one now flowering.
I've been using MiracleGro mositure control soil for the last couple of years.
Due to the winter this town ran out, but I did manage to find some that had thoroughly dried out, which I'm on the last bag of.

Besides this leaf damage (pics) I'm also seeing signs of mag deficiency in a batch of clones I took the other night (lighter leave edges). I'm cloning this batch into the same soil.

Do y'all think these issues could be related to "dead" soil?
I haven't fed the Himalayan at all, relying on the MG nutes in the soil. There were only two leaves like pictured, but it seems to be spreading upward.

I have looked for thrips, etc. nothing.

I figure if one of you has seen this, and fixed it, then there's no mistaking whatever it is, cuz' the pics are decent?
What d'ya think?
Note the raised ridges on pic one.

 

[amsterdayum]

ok this is just a guess but most mg soils are time release nutes... is it the soil with the little capsule like things if so could it be possible that frome being so dry that the capsule things broke and released all the nutes at once maybe its a salt build up from that... have u tried flushing? i would flush if it does get worse u know its a def and not nute lock out... either way u will find out what it is that way hope i helped but its very possible i didnt lol

 

[MrFishy]

Several grows ago, I got a bag of the same that was sopping wet. It was so HOT that it severely burned everything I put in it.

I did notice that this dry batch didn't have many prills (those caspules) in it.
Having to completely rehydrate this dried batch should have provided some flush?
I always water really well, and drain for 10 minutes.
Thanks for the idea.

 

[GoldenGanja13]

Flush her and flush her good, get rid of that MG.

 

[MrFishy]

thus the thread title.

 

[1kooguy]

Add some garden lime to the mix,cause MG does'nt have any.A few drops of hydrogen peroxide per liter of water.Give a half dose of liquid fert.

 

[MrFishy]

Add some garden lime to the mix,cause MG does'nt have any.A few drops of hydrogen peroxide per liter of water.Give a half dose of liquid fert.

What is this a fix for?
Lower the ph, oxygenate the soil and kill bacteria, then feed half strength?
Is it a "cure-all" or do you recognize this issue?

 

[kevin]

next time you water, catch the run off and check the ph. do that before adding anything.

 

[GoldenGanja13]

Get Educated on MG, it's cheap soil.

 

[justhav2p]

Everyone has pretty good advice,

Def. Nute Burn... Never been a fan of Miracle Grow due to its high chem nutes.......Really easy to f up with the chemicals especially in containers. Flush, check your run off ph... try some of your organic nute line after you stabilize your baby..

Good luck
P

 

[morrisgreenberg]

i agree with most posts here too, flush flush flush flush, clear out that soil so you get your self a clean slate, then feed as she needs.....situations after the flush i like to use botanicares cal-mag and/or earth juice micro blast....those are must haves for your arsenal against micro nute defs

 

[MrFishy]

According to Scotts' website, it's impossible to wash away the time-release prills from their soil.
Besides, I choose to use MGMC for several reasons, none of which MG haters would understand.
I will measure the run-off, though.

 

[UserFriendly]

The last bag of MGMC I bought a few months ago turned out to be too hot. It seems to me like one of those things you're bound to come across when playing this numbers game we call Miracle-Gro.

I've got 40 gallons of lightly used soil, and I'm going to go through and pick out those spheres of doom so I can re-use it. It's really soured me on MG.

 

[MrHowardMarks]

Hey man, just got your PM, haven't been around in a while...

I believe you have a micro problem, a burn starts with the tips of the leaves, they will yellow, then brown with a burn, starting from the tips of new growth


You do want to check the relative pH of the soil, you can test the runoff water as previously suggested, or buy a cheap soil tester dropper kit...


Start them on a quality feeding regimen and you'll have no worries, I'm fairly certain you have the horticulture know-how by now to get some decent results.

 

[Brick Top]

You have yellowing between the veins and that can be from either a magnesium (Mg) deficiency or a manganese (Mn) deficiency, which occurs when large amounts of Mg are present in the soil. So it could be from a lack of one or the other or two much of one.

If you had burning on the tips/edges of your leaves I would say it is nute burn but I don’t think that is the case. I could be wrong but since your problem is between the veins and not on the tips/edges of the leaves is just doesn’t look like what my first opinion would be.


Also ... dump the MG soil for future grows. Do not use anything with slow release fertilizer in it.

 

[BigBudBalls]

Hey Fishy! How ya been?

You know I'm a friend of MG. I have learned to add epsom salt to every watering during flowering. My strain seems to crave it. I also place my veg plant on top of new MG soil for flowering (though they might go 1-3 weeks of the new pot before the 12/12 switch) Watch closely.

(now I add 1 table spoon per 1/2 gal. I water once a week for a plant in a 1 gal grow bag on top a 4 gal bucket in flowering. Finished hight of plant is about 2.3 feet.)

I've been growing forever but am seeing something new to me. The pics are of a fan leaf off a 3-4 week old Himalayan Gold, taken by clone from one now flowering.
I've been using MiracleGro mositure control soil for the last couple of years.
Due to the winter this town ran out, but I did manage to find some that had thoroughly dried out, which I'm on the last bag of.

Besides this leaf damage (pics) I'm also seeing signs of mag deficiency in a batch of clones I took the other night (lighter leave edges). I'm cloning this batch into the same soil.

Do y'all think these issues could be related to "dead" soil?
I haven't fed the Himalayan at all, relying on the MG nutes in the soil. There were only two leaves like pictured, but it seems to be spreading upward.

I have looked for thrips, etc. nothing.

I figure if one of you has seen this, and fixed it, then there's no mistaking whatever it is, cuz' the pics are decent?
What d'ya think?
Note the raised ridges on pic one.

 

[BigBudBalls]

i agree with most posts here too, flush flush flush flush, clear out that soil so you get your self a clean slate, then feed as she needs.....situations after the flush i like to use botanicares cal-mag and/or earth juice micro blast....those are must haves for your arsenal against micro nute defs

Flushing time released soil (with plants in it) is a *BAD* idea, and will result in the opposite of what you are looking for.

Wet dry cycles are whats needed to 'flush' But Fishy has been down that road and posted results. (and Fox Farms makes time released nutes (or at least private labels them))