Leaves stuck pointing straight up

qwizoking

Well-Known Member
So you say grow a few plants and come talk to you?
You say you've grown countless plants...
Ima take a wild guess and say I've grown more plants in the past year than you have ever.

Lol, a few hundred just in one of my grow houses.
My guy in San Marcus wants 20lbs every 2 weeks, atx wants 5 a week, And Elgin wants 5..
I've been growing a little over a decade I don't feel like figuring out exactly. Also grow outdoors in west tx.
I mainly grow landrace Sativa's.
The fact that you can't see all the problems with his and your own plants speaks volumes. Once again I'm done here. Back to my spot with the others
 

qwizoking

Well-Known Member
It seems that way??
You remind me of this angry woman that came in my office and proceeded to hit her kid. Don't tell her how to raise a child, trust me, it doesnt go well. Anyway growing section was good for a laugh today,

And yea. Does me 30k for it.
If it makes you feel better, I don't usually have enough to satisfy
Ugh and I got dragged back in. Trolololol
 
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kogislife420

Active Member
Yea I bet you don't.

I see clear interveinal chlorosis in older leaves. "Praying" is only associated with mag. Whatever though, you know best
Your a dickhead mate, if it would have a mag def then it would be part yellow, yep sure have a deficiency and my plant is perfectly green and really fucking healthy, tops to the guy and his gardening, and mate get your shit right before you preach
 

BigTexan

Well-Known Member
I grow alongside veteran growers from generations and a few that have been growing for 30+ years, A happy plant is always perky. Feed it wrong and watch her claw. trolling growers doesnt help anyone. quite frankly its silly, why would you want to give bad advice? is that how you would like to grow your crop? someone give you bad advice and you end up taking it and fucking something up.
 

Uncle Ben

Well-Known Member
Riddle tried, now I'll post the "cleaned up", post RIU revision version.

Plant Moisture Stress - symptoms and solutions (revised Dec. 20, 2014)

Quite often I hear groans from folks having leaf problems -> “Help, my leaves are cupping and the leaf edges are turning brown!”, or, “My plant's leaf tips are curling down and turning black ....what's wrong?” Unless insect damage has occurred or the plant is suffering from a severe case of calcium deficiency, the plant is trying to tell you that it is water stressed. It's hard to tell exactly what the culprit is, and unfortunately the “solution” the grower chooses many times is not the right one. A mis-diagnosis only serves to make matters worse by promoting further decline. I’ll try to cover some of the more common causes that can induce these common symptoms and try to offer a few simple solutions. The ultimate and correct solution is in the hands of the grower.

1. Over-fertilizing - the most common cause of leaf cupping aka leaf margin rolling, leaf margin burn, leaf tip curl/burn and copper colored necrotic leaf spots is the overzealous use of too much plant food in relationship to factors such as plant vigor and rate of growth. The first unit of a plant to show moisture stress is the leaf at its margins and/or tips, reflected by margin rolling (cupping) or burning. A hard, crispy feel to the leaf frequently occurs as well, as opposed to a soft and cool feel of a happy leaf. When you have a high concentration of salts in solution (or in the root medium) compared to lower salinity levels found in the plant’s tissue, water is actually drawn out of the plant across the root gradient in order to fix the PPM imbalance. IOW, this is a natural, osmotic response that serves to equalize salinity levels on both sides of the root’s epidermal gradient. Back off on the amount and/or frequency of plant food. Too much plant food can also burn the roots, especially the sensitive root tips and hairs, which then creates another set of problems such as nutrient deficiencies. A note for the bio folks - as soil dries, the concentration of the remaining salts rises further exacerbating the problem. Leach (flush) your pots with low TDS water once in a while to get rid of excess salts.

2. High Heat - the plant is losing water, transpiring, via the leaves faster than what can be replaced by the root system. The leaf responds to such stress with leaf margin cupping or rolling (up or down) in order to conserve moisture. A good example is reflected by the appearance of broad-bladed turf grass on a hot summer day, high noon, with low soil moisture levels - the leaf blade will roll in and the grass will take on a dull, greyish-green appearance. Upon sunrise when moisture levels have returned to normal the leaf blade will be flat. Lower the heat and concentrate on developing a large, robust root system by practicing sound plant culture. An efficient and effective root system will go a long way to prevent heat induced leaf dessication and leaf margin curling by supplying sufficient moisture for good plant health. One short episode of high heat is enough to permanently destroy leaf tissue and cause a general decline in the leaves affected, which often occurs to leaves found at the top of the plant located to close to HID lamps and may show as curled margins, leafsets pointing up rather than prostrate. The damaged leaf (usually) does not recover, no matter what you do. Bummer in the summer. One can only look to new growth for indications that the problem has been corrected. As an aside, one should strive for at least a 15F differential between day and night temps.

3. High Light - yes, it’s true, you can give our faves too much light. Cannabis does not receive full sun from sunrise to sunset in its natural state. It is shaded or given reduced light levels because of adjacent plant material, cloudy conditions, rain, debris and dust collection on the leaf surface, twilight periods of early morning and late afternoon, and light intensity changes caused by a change in the seasons. Too much light mainly serves to bleach out and destroy chlorophyll as opposed to causing leaf cupping, but it often goes hand-in-hand with high heat for indoor growers. Again, back off on the light and concentrate on developing/maintaining an efficient and robust root system. Keep in mind that all but equatorial material receives less light during flowering than during the vegetative stage.

4. Overwatering - this practice only serves to weaken the root system by depriving the roots of proper gas exchange. IOW, the roots are not getting enough oxygen which creates an anerobic condition causing root decline and root rot with the end result showing up as leaf stress, stunted growth, and in severe cases, death. (horrors!) A lot of times folks think the plant is not getting enough plant food (which it can't under such adverse conditions), they add more nutes for a "curative", and just add insult to injury.

5. Underwatering - not only is the plant now stressed due to a low supply of adequate moisture, but carbohydrate production has been greatly compromised (screwed up). Step up the watering frequency, and if need be, organic growers may need to soak the pot from the bottom up until moisture levels reach an even consistency throughout the medium especially with mixes that are heavy in peat. If severe, a little surfactant (1 teaspoon per gallon of liquid Ivory dish soap) added to the drench will help return the organics to a normal moisture retentive state. If the pot feels light to the lift - it’s time to water. Don’t wait until the soil pulls away from the sides of the pot or leaves droop before you water. Soil should stay moist (not wet) at all times. A wet/dry watering cycle is ill advised.

Happy gardening,
Uncle Ben
 

Uncle Ben

Well-Known Member
yeppers anything that clogs the stomata would cause it as well
Yep and we weren't given info regarding his leaf sprays - amount and frequency. Betcha he sprayed them with epsom salts at an outrageous rate thinking he was gonna throw stuff at them hoping something sticks.

This is what a moisture stressed plant looks like. It was a TFD Thai-tanic that got one of the famous S. Texas "aw shit" 100F days thanks to a hot SW wind coming out of Mexico.

Before heat stroke, veg:

TTat4.5wks.jpg

After heat stroke, flowering:

ThaiTanicLongCalyxes.jpg

Less is more,
UB
 

chuck estevez

Well-Known Member
So funny when people tell master growers they are wrong. And then, after 2 other MASTER growers back him up, you still have people telling them they are wrong. Riu at it's best.
 

pjd907

Active Member
Yep and we weren't given info regarding his leaf sprays - amount and frequency. Betcha he sprayed them with epsom salts at an outrageous rate thinking he was gonna throw stuff at them hoping something sticks.

This is what a moisture stressed plant looks like. It was a TFD Thai-tanic that got one of the famous S. Texas "aw shit" 100F days thanks to a hot SW wind coming out of Mexico.

Before heat stroke, veg:

View attachment 3315942

After heat stroke, flowering:

View attachment 3315943

Less is more,
UB
Ive only sprayed them twice with a epsom salt mix. The mix was pretty light. Maybe i should give them a flush because im looking back at pics ive take throught this grow and a week ago the leaves werent pointing up like this
 

Uncle Ben

Well-Known Member
Ive only sprayed them twice with a epsom salt mix. The mix was pretty light. Maybe i should give them a flush because im looking back at pics ive take throught this grow and a week ago the leaves werent pointing up like this
Jeez, at what rate? What did the foliar mix have in it? :wall:
 

Uncle Ben

Well-Known Member
Thank You Qwizo!
this is another lesson you have got me to read up and learn.
bless,
dZ
Make sure that Mg deficiency "lesson" is conclusive regarding lower leaf chlorosis too. If the lower leaves are not Mg deficient, i.e. a pale yellow with darker veins, then Mg is not the problem.

This is just another case of folks doing the cannabis knee jerk reaction (because they don't really know but want to come off posing that they do), that epson salts cures whatever ails ya. Well, I've got this here sore throat trying to talk sense to some of these guys....think I'll go gargle with some epsom salts. Soak mah sore feet too while I'm at it!
 

Dogenzengi

Well-Known Member
nailed it.
Make sure that Mg deficiency "lesson" is conclusive regarding lower leaf chlorosis too. If the lower leaves are not Mg deficient, i.e. a pale yellow with darker veins, then Mg is not the problem.

This is just another case of folks doing the cannabis knee jerk reaction (because they don't really know but want to come off posing that they do), that epson salts cures whatever ails ya. Well, I've got this here sore throat trying to talk sense to some of these guys....think I'll go gargle with some epsom salts. Soak mah sore feet too while I'm at it!
Thank you Uncle Ben, I always like reading material.
bless,
DZ
 
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