Mango Haze and Mango Haze IBL, in search of a keeper

Thank you @longball , most helpfull!

You are a skilled diagnostic and everything you said makes a lot of sense to me. Dr. Longball sure does have a ring to it.:)
In my previous grow of SSH I encountered the same "problem", I did change my soil recipe a bit with adding guano and feeding extra Silic rock en Calmag.

I still had some cuts and I planted them in the same soil receipe and the same feeding scheme in different size containers but outdoors as a test to see what they do outdoors.
I let them grow and everything looked perfect, no yellowing tips!

Something I also noticed was that the yellowing tips seem to go away after a while indoors.

longball said:
My first thought was if just one strain and high on the plant maybe too close to the lights for that strain. From time to time, when lights are too powerful for a space the tops don't get burned but tips get yellow all over. Something to keep in mind until I can make up something better. Hope that helped! :)

It also looks like a few of the leaves and tips are curling just a bit. That, and yellow tips, often point to the lights just being a wee bit too powerful at this stage of a plants life. Maybe your reflective walls are reflecting too much? In the example below, the tops are not burning but tips are yellowing everywhere and there is some curling. The lights were raised a bit and the problem went away.
Click to expand...

I'm thinking also that the light intensity is most likely the cause here.
I will have to buy a good light meter and start experimenting next year.

longball said:
Perhaps the PH at the root level is not correct?

After that, possible enviromental stresses can cause yellow tips. Things like heat, cold, low humidity, or poor air circulation, even overwatering. Sometimes it is simply giving too much water too fast. Sometimes the amount is not too much but how fast that amount is poured onto the soil. I'm sure that you thought of these things but sometimes throwing things out there will spark up nostalgia an idea that will head you in the right direction.

Also, in the last picture, bottom center, it looks like some leaf tips are turning down like maybe the fan is too strong there? Is there even a fan there?
Click to expand...

PH should be good according to the plants that went outside, watering also, ventilation is calculated and should also be on point.
Temps and humidity are out of control for now (shed) but its summer here and they are fairly good.
I do have to cope with low humidity levels in veg en flower.
I do have fans in there but they are directed at the lights but they make the leaves shake a bit!

Also a big thanks @Fish for helping!(y)
Fish said:
I’ve had the exact same look on my leaves many times before but outdoors and in pots. I have generally thought it was an imbalance in my soil, as I make my own, and/or too much rain/water causing imbalances from nutrient wash out or pH change etc. I’m not saying I’m right at all I’ve just put it down to that and generally the problem has fitted with something I’ve done/not done or noticed during the season. I find if you have found the issue or are trying to resolve it don’t pay too much attention to the existing browning leaves pay more attention to the new growth and how it’s performing. Sorry if I’m telling you how to suck eggs haha.
Here are a couple of pictures to look at too.
Click to expand...
The soil performs wel outside so it must be related to my indoor environment.
I will keep a close eye to the new growth and see how it evolves!
Thanks for the scheme.:)

Fish said:
There is a huge rabbit hole to go down with plant health/metabolism etc but you will have to really search through a lot of ‘not so useful’ information too.
For me the last couple of times I have had this I let the pots dry out and have added more gypsum or a small amount of left over milk powder for more calcium. Again I’m not saying I’m right.

Hope this helps and doesn’t confuse
Click to expand...

Indeed, the more I learn the more I come to the conclusion that my knowledge is just the tip of an iceberg, it is challenging at times.
I do love to search and learn!

Thanks for the help!

Greetings.
 
Swifty said: "Something I also noticed was that the yellowing tips seem to go away after a while indoors."

That's good! There is the possibility as the plants got bigger and stronger they were better able to handle the light intensity? I am not an indoor grower but I do start plants indoors. The last 2 years I have been using 600w LEDS and it has been complete guesswork trying to figure out the correct intensity and distance. Before that I used 25w blue spectrum fluorescent lights. Very simple setup with great results. I don't think it is possible to burn the plants with this setup and they seem to like it. Not for flowering though. Of course, that is quite a bit different than doing a whole grow indoors. You indoors guys are awesome!

opt_T 05 31 20 P1030256.jpeg


"Indeed, the more I learn the more I come to the conclusion that my knowledge is just the tip of an iceberg, it is challenging at times. I do love to search and learn!"

I'll drink to that! Cheers! 🍻

Longball
 
Swifty said:
...In my previous grow of SSH I encountered the same "problem", I did change my soil recipe a bit with adding guano and feeding extra Silic rock en Calmag.

I still had some cuts and I planted them in the same soil receipe and the same feeding scheme in different size containers but outdoors as a test to see what they do outdoors.
I let them grow and everything looked perfect, no yellowing tips!

Something I also noticed was that the yellowing tips seem to go away after a while indoors.

I'm thinking also that the light intensity is most likely the cause here.
I will have to buy a good light meter and start experimenting next year.

PH should be good according to the plants that went outside, watering also, ventilation is calculated and should also be on point.
Temps and humidity are out of control for now (shed) but its summer here and they are fairly good.
I do have to cope with low humidity levels in veg en flower.
I do have fans in there but they are directed at the lights but they make the leaves shake a bit!...
Click to expand...
Seems you are in good hands these days- lots of helpful suggestions with Dr. @longball in da house and @Fish's background knowledge. I think it positive that new growth continues as Fish mentioned but the plant condition is indicative of a problem that needs attention. When I heard yellowing tops*, I immediately went to immobile elements and their inability to translocate but then you said the yellowing symptoms disappeared after awhile when they were placed inside. You mentioned your ID humidity problem causing me to wonder about VPD and possible water vapor saturation differences between outside and ID. Stabilization, acclimatation of plant; changing transpiration levels in differing environments? And of course, different light source intensities may impact here and should be considered too. Damn LED's lol. Just another thought put out there.

edit- * a kelp foliar can be helpful for this condition.


mu
 
musashi said:
Seems you are in good hands these days- lots of helpful suggestions with Dr. @longball in da house and @Fish's background knowledge. I think it positive that new growth continues as Fish mentioned but the plant condition is indicative of a problem that needs attention. When I heard yellowing tops, I immediately went to immobile elements and their inability to translocate but then you said the yellowing symptoms disappeared after awhile when they were placed inside. You mentioned your ID humidity problem causing me to wonder about VPD and possible water vapor saturation differences between outside and ID. Stabilization, acclimatation of plant; changing transpiration levels in differing environments? And of course, different light source intensities may impact here and should be considered too. Damn LED's lol. Just another thought put out there.

mu
Click to expand...
Thanks @musashi !

Well I did a test with the same soil, nutrients and cutting outdoor and there are no problems to be seen.
This indicates to me and also as you mentioned that the environment is where I need to look further into.
Prime suspects is VPD now because once I have a nice biomass going it starts to dissapear.

Unfortunately I have no control over RH and temps now, something to ponder over in wintertime!
 
Last edited:
I am still wondering about the low humidity. Increased biomass would solve that problem. As can nature. Hmmm....:unsure:
musashi also has a very good point. None of these problems are particulary to hard solve once identified, it is more the time it takes to go thru the process of elimination!

Longball
 
Day 17 of flower,

They are doing good so far, the yellowing tips is going away in the new growth of most of the plants.
Most have stretched x4 since start of flowering, I have topped almost all of them today.
My SSH cut is the fastest to start budding.
They don't smell strong and more on the sweeter side.

Lighting is at 345w CMH, led's are at 100% and distance is aprox. 20cm to the plants.
They receive 13h lights off and 11h lights on (by the end of the week 11 on and 13 off).

They are fed 1ml/L Silic Rock, 1ml/L Calmag Pro and 2ml/L Alga Bloom in rainwater.

Temps are around 27°C, RH around 55%.

Most of the cuts are showing roots, I had to remake MHI#3. I took two of them to be sure.
These root fairly fast and easy.

Some nice sativa expressions in these Mango's, no indica dominance detected in the females.

General overview:
MHIBL80Nice.jpgMHIBL81Nice.jpg

Health is good, most had to be topped.
A stretch of x4-5 is to be expected in the Mango line.

MHIBL82Nice.jpgMHIBL83Nice.jpgMHIBL84Nice.jpgMHIBL85Nice.jpg

Greetings.
 
Last edited:
Mango Haze IBL#1 @94 days.

Bud stayed fairly green, branches are all purple and leaves are nice yellow. It's a pretty plant to look at.
I find it difficult to describe the smell. It is perfumy, earthy, woodsy for now. We will see if this changes over drying. It is very delicate smelling.

I will harvest her over the weekend, lot's of rain and colder wheather is heading our way.
Trich's are almost all cloudy and a little bit of amber.

Here some pics of her:

MHIBL86Nice.jpgMHIBL87Nice.jpgMHIBL88Nice.jpgMHIBL89Nice.jpg

Greetings.
 
Swifty said:
Mango Haze IBL#1 @94 days.

Bud stayed fairly green, branches are all purple and leaves are nice yellow. It's a pretty plant to look at.
I find it difficult to describe the smell. It is perfumy, earthy, woodsy for now. We will see if this changes over drying. It is very delicate smelling.

I will harvest her over the weekend, lot's of rain and colder wheather is heading our way.
Trich's are almost all cloudy and a little bit of amber.

Here some pics of her:

View attachment 75553View attachment 75554View attachment 75555View attachment 75556

Greetings.
Click to expand...
Those are some crystally motherpuckers. (y)
 
Day 24 of flower,

Welcome to the jungle.:oops:
Plants are still stretching like crazy, my goal was to keep them fairly short but that did not go as planned. If you go back a couple of post you can see where I started with them.
Won't be easy to show the different pheno's, its like a wall of green.
I topped them several times now, did have some nice and interesting smells already.
I will have to ty them up soon, will make the best of it.
So far no light burn or bleaching, they can handle strong light well, they will lower in a week or so when there is some weight in the buds so I will do my best to avoid damage.

They seem overal happy, some pheno's still have some light damage at the tops of the leaves on the new growth but they al receive the same feeding and is to be expected for my first run with these.
I did clean the undersides severly to avoid male sacks on the lower branches ( a tip from Shantibaba).

Lighting is at 345w CMH, led's are at 100% and distance is aprox. 10cm-15 to the plants.
They receive 13h lights off and 11h lights on.
They are fed 0,5ml/L Silic Rock, 0,5ml/L Calmag Pro and 2ml/L Alga Bloom in rainwater.
Temps are around 24°C, RH around 60%.

General overview:

MHIBL90Nice.jpg

Lower branches are al gone, this should improve airflow and direct energy to the top of the canopy:

MHIBL91Nice.jpg

Lights are slammed to the roof:

MHIBL92Nice.jpg

Nice thin leaved girls these Mango's, I like looking at them:

MHIBL93Nice.jpg

Already a lot of difference in early bud set:

MHIBL94Nice.jpg

Mango Haze IBL#1 is the slowest of the group and has the thinnest leaves:

MHIBL95Nice.jpg

Until next week and if you don't see me, you know what I'm doing (tying these up😅).
 
Proud Kraut said:
Nice jungle of Haze...the #1 looks kick ass. What would you say LED next to CMH any exceptional differences you notice yet?
Click to expand...
Thanks @Proud Kraut,

I was a HPS grower, then turned to CMH and then to LED.
LED is challenging in colder climates and I don't like to spend energy on heating. For this reason I experimented with HPS and CMH in combination with the LED's and this worked well for me. I am still on a learning curve but I can say that the quality and quantity is on par with HPS now. I run my SSH cut for several years now under al the lighting combinations and this is a great way to learn.

I believe that a diverse spectrum is most beneficial for THC production, can't prove it scientifically...

To answer your question, LED's have a slight edge for looks of the buds and smell but the smoke of the CMH side is a tad better for me.
 
What do you mean with the smoke of CMH is better? More potent, smooth, tasty?
The CMH have a better PAR than HPS while adding less heat than HPS but more than LED beeing between the both imho.
I have seen many great examples of CMH grows.
And yoh mean LED buds from your SSH look better did i get that right? Thanks for the info. They do look very similar in the pics the bulb side a but more stretched maybe.
 
Last edited:
You must log in or register to reply here.
Back
Top