I might be a moron, but ain't this boron?

[VagPuncher]

Hello,

Got 3 of my San Fernando Diesel plants telling me something, I just can't tell. I never was good at nutrient deficiencies or excess.

Plant is in a 2gallon container. Being fed CNS17, Roots Excel, Potassium Silicate and Magical.

None of the other strains are showing it. Tips of the infected leaves are turned up.

2 full garden shots at the end.

 

[shaunmulok]

cal/mag or zinc def. ????

 

[whodair]

did you overwater a bit ?? that will usually throw the balance off in the medium...otherwise they look great !!

 

[Dr.Greenthmb420]

Your leaf tips are curling up like they are praying, praying for Mg. Appears to be intervienal chlorosis of the Mid-Older leaves which is indicative of Mg def, Mg gradually cuts off available uptake at pH levels under 6.5. If using soil, make sure pH is around 6.5to 6.8. Get either MgS (magnesium sulfate) or CaMg. I use MgS and do a foilar feeding with 1/4 strenger solution WITH CARBONATED WATER!. (contains LOW SODIUM 10% or LESS ONLY). check out this site, REALLY HELPFUL!

http://www.amsterdammarijuanaseedba...eshootingsolutions/marijuana-plant-abuse.html

 

[B.C.]

Magnesium def, either not enough, or somethings throwing the balance off to where it's not able to absorb what it needs.

It doesn't look too bad overall tho. Good luck with em! BC

 

[Dr.Greenthmb420]

Magnesium def, either not enough, or somethings throwing the balance off to where it's not able to absorb what it needs.

It doesn't look too bad overall tho. Good luck with em! BC

Agreed! Also Certain salt build ups can lock out Mg, Its always a good idea to Flush out the media with a light solution. In the pic below you will see my leaves curling upwards, was the last plant I grew in soil.

 

[VagPuncher]

So, foliar with some Epsom salt and water and then raise ph in the soil?

 

[Dr.Greenthmb420]

So, foliar with some Epsom salt and water and then raise ph in the soil?

This is a copy and paste from this website http://www.amsterdammarijuanaseedba...hootingsolutions/marijuana-plant-abuse.html#b

Magnesium deficiency will exhibit a yellowing (which may turn brown) and interveinal chlorosis beginning in the older leaves. The older leaves will be the first to develop interveinal chlorosis.

Starting at leaf margin or tip and progressing inward between the veins. Notice how the veins remain somewhat green though





This can be quickly resolved by watering with 1 tablespoon Epsom salts/gallon of water. Until you can correct nutrient lockout, try foliar feeding. That way the plants get all the nitrogen and Mg they need. The plants can be foliar feed at ½ teaspoon/quart of Epsom salts (first powdered and dissolved in some hot water). When mixing up soil, use 2 teaspoon dolomite lime per gallon of soil.

 

[VagPuncher]

Hell yeah. So, 2 teaspoons in a gallon of carbonated water.

Thanks guys.

 

[Dr.Greenthmb420]

yep but again it needs to be CO2 Water with low sodium 10% or less, I think there is only one brand out there its "Crystal Clear", if you go to my youtube video http://www.youtube.com/watch?v=1EmbZBjEZdg and skip to 7:15 it shows it. The Carbonated water muxture will give your plants CO2 and nutrients at the same. Never foilar feed in over 80 degree heat! By the way, the curling will lay down flat once corrected but obviously the discoloring will never change as the leaf tissue is already destroyed. Watch for any other OLDER leaves to continue in discoloring to see if it gets better.

 

[Rumpleforeskin]

Some of the older leaves in my grow show the same signs. If it's not wide spread I would just let it go and watch new growth for signs of yellowing.

I have had my PH ride a little high when growing in soil containers and seen the same symptoms (commonly called "rusting"). I had great success unlocking it with a Teaspoon of Cal-Mag in four gallons of water. Water (through the roots like most normal folks) with this for two watering cycles. All new growth came back green. A few of the real damaged leaves kept the brown then died off, but the plant progressed normally.

I am told epsom salt can be used as a substitute to Cal-Mag for rusting. I have not tried this but would not have a problem adding some to my water if I did not have any Cal-Mag handy. Mix 1/2 tsp of epsom salt per gallon. I have heard of other folks mixing in a full tsp but I would start with half.

Carbonated water won't help anything. A can of carbonated water has the same amount of CO2 as two human exhales. Save it for the mixed drinks. It is one of the funnier grow myths (I Grow Chronic video started this foolishness). If you need more CO2, sing a song or read some poetry and it will do more then 25 gallons of club soda dumped all over your grow room.

Never spray anything on your plants while the lights are on. Keep it simple and never spray anything on your plants.

I have to say, your plants look pretty normal from the few photos you posted. I predict great success from your grow operation.

 

[Dr.Greenthmb420]

Some of the older leaves in my grow show the same signs. If it's not wide spread I would just let it go and watch new growth for signs of yellowing.

I have had my PH ride a little high when growing in soil containers and seen the same symptoms. I had great success unlocking it with a Teaspoon of Cal-Mag in four gallons of water. Water (through the roots like most normal folks) with this for two watering cycles. All new growth came back green. A few of the real damaged leaves kept the brown then died off, but the plant progressed normally.

Carbonated water won't help anything. A can of carbonated water has the same amount of CO2 as two human exhales. Save it for the mixed drinks. It is one of the funnier grow myths (I Grow Chronic video started this foolishness). If you need more CO2, sing a song or read some poetry and it will do more then 25 gallons of club soda dumped all over your grow room.

Never spray anything on your plants while the lights are on. Keep it simple and never spray anything on your plants.

I have to say, your plants look pretty normal from the few photos you posted. I predict great success from your grow operation.

I see you didnt listen at http://forum.grasscity.com/indoor-marijuana-growing/196945-spraying-leaves-seltzer-water.html either! Many can testify to this being factual, Any Increase in CO2 is benefical and You can literally see the CO2 raising out of the bottle, ever seen the DIY CO2 from sugar and yeast? This has more CO2 release then that. Dont beleive me. Spray it in a closed area with Fuzzy Logic CO2 Monitor. Proof is in the pudding.

 

[Rumpleforeskin]

I do real CO2 enrichment with a sentinel chhc1 controller. I tested tons of home brew and other DIY CO2 enrichment methods with two monitors in a sealed room. Two breaths is better then spraying a can of carbonated water around your grow room. None of the DIY methods of making CO2 are able to maintain required levels of CO2 to be worth while. I wish this was not true.

The link you posted: If you read it you will see I was the third contributor to that thread. So I did read it and it is still funny after all these years. After growing for a few years you wont be defending this practice. Many can testify to Elvis being alive as being factual.

But.... I don't see any harm in spraying soda all over your grow room during veg and when the lights are off. I just think it helps the growers peace of mind more then the plants.

Peace, and happy growing.

 

[Dr.Greenthmb420]

LMAO TALK IS CHEAP, TRY IT AND DECIDE FOR YOURSELF, THE RESULTS ARE OBVIOUS!

 

[Rumpleforeskin]

I agree.

 

[Bubba2]

Listen to Rumple he won't give lame advice (google the word bubble bucket to see what I mean).

To think someone is still spraying soda on plants heh. Yo, you still writing letters to Santa?

Check out Dr.Greenthmb420 grow pictures then go look at Rumples. Talk is cheap, the results are obvious (like she says). Look at Rumples results.. Who you going to take advice from?
**Snap**

 

[Dr.Greenthmb420]

Listen to Rumple he won't give lame advice (google the word bubble bucket to see what I mean).

To think someone is still spraying soda on plants heh. Yo, you still writing letters to Santa?

Check out Dr.Greenthmb420 grow pictures then go look at Rumples. Talk is cheap, the results are obvious (like she says). Look at Rumples results.. Who you going to take advice from?
**Snap**

HAHA MY SYSTEM WILL MAKE THAT BUBBLE SYSTEM LOOK LIKE SHIT!!!! Ill post some PICS OF MY 1 LB Beauties TO PUT THIS NOSENSE TO SHAME LMAO. KEEP WATCHING AND SEE IF YOU CAN KEEP UP. NICE SCARF LOL

 

[Bubba2]

Still waiting....


Nothing yet?


Op, Rumple will never talk smack on anyone so you won't see him working over this noob or entering a penis measuring contest. He does product testing and writes threads that have over a half million reads. He is not always right but always gives the respect.

I had that same leaf issue when I was growing in Vic's Super Soil. I just let the plants grow. It only effected a few leaves. Not sure if this is the same problem you are having but it is my best 2 cents.

Don't bring a knife to a gun fight.

 

[teemu shalanie]

https://www.icmag.com/ic/album.php?albumid=19081&pictureid=556809


https://www.icmag.com/ic/album.php?albumid=19081&pictureid=556810

Yo Vag hows it going bro ?, nice room ......
The Med man told me this looked like calmag diff ,

thought it looked similar to yours? , I gonna try sensi cal bloom.....
peace TS

 

[VagPuncher]

I do use Magical, but i'll still spray with epsoms and add them to my next watering.