Plant Moisture Stress - Symptoms and Solutions

DaveCoulier said:
If more people learn the truth and facts, and start educating newbies, then one day the newbies will stop passing on false information. Maybe one day all of us will be free of these dreaded myths and this perpetual cycle, and we'll all be better off.
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Wouldn't that be great?!?! I'm very doubtful tho. Our culture is shifting from language literacy to visual literacy. YouTube is GOD. If someone sees a decent garden on YouTube, they will listen to whatever "they" say works, irregardless of science or common sense. Tons of expectation confirmation going on driven by marketing. Not only must you take over the channel of distribution, but you must also prove the nutrient/supplement suppliers wrong.

Uncle Ben said:
What I hate is what I perceive to be an extension of the entitlement mindset that is so prevalent in the world. We don't owe anyone anything, they need to take complete responsibility for allowing themselves to be manipulated by vendors and forum parrots who don't know shit from Shinola.
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America accounts for 94% of the world's lawsuits.
 
plebean said:
Wouldn't that be great?!?! I'm very doubtful tho. Our culture is shifting from language literacy to visual literacy. YouTube is GOD. If someone sees a decent garden on YouTube, they will listen to whatever "they" say works, irregardless of science or common sense. Tons of expectation confirmation going on driven by marketing. Not only must you take over the channel of distribution, but you must also prove the nutrient/supplement suppliers wrong.


America accounts for 94% of the world's lawsuits.
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Have you ever watched the movie Idiocracy by Mike Judge? He might actually be onto something. There's even some 'gardening' in the movie you'd enjoy.
 
m8 u could of got more bud than that off ur plant i must say it looks real health i found going from 600w light to 1000w light was far better it really gives u that boost do u use canna boost with pk13;14 if u dont try it i just got 17 oz dry off one big bud 19 oz dry off of my kronic 1 plant thats 36 oz two plants :joint:bongsmiliebongsmiliebongsmilie:eyesmoke:
 
It is awesome solution about the plant moisture stress which is really meaningful to work on it. I like to gardening but most of the plants of my garden were growing very slowly and now I found the solution that there must be limited fertilisation. There must be limited heat on the plant for the effective and efficient root system which will give a good growth of the plant.
 
Ok today is the 2nd day into her showing her female hairs! but i waterd on saterday then again on monday my problem is this i noticed on my leaves had 2 slices or tears in it...what could have this been? or what did it? please help?
 
CIMG0117.jpgCIMG0116.jpgok i think i may have burnt them a lil..i notice that the tips i mean barely though have a yellowish -whitCIMG0115.jpge to them...hmm theres this tear that apeared over nite.. please help me out help me figure what it is and what to do???
CIMG0118.jpg
pencil.png
 
big smoker101 said:
m8 u could of got more bud than that off ur plant i must say it looks real health i found going from 600w light to 1000w light was far better it really gives u that boost do u use canna boost with pk13;14 if u dont try it i just got 17 oz dry off one big bud 19 oz dry off of my kronic 1 plant thats 36 oz two plants :joint:bongsmiliebongsmiliebongsmilie:eyesmoke:
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WHAT?? lol,im on my first grow using canna a+b for veg,now im 3 and half week in to flower using a+b with pk13/14 and canna boost..when do you start using your pk with canna boost?do you use it right the way threw flower
 
phenix white said:
View attachment 1010426View attachment 1010424ok i think i may have burnt them a lil..i notice that the tips i mean barely though have a yellowish -whitView attachment 1010423e to them...hmm theres this tear that apeared over nite.. please help me out help me figure what it is and what to do???
View attachment 1010422
pencil.png
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Hey PW, looks like a little niute burn there. Might want to back off on fertilizing them and use just water the next 2 waterings to try and flush out some of the salts. As for the tears, I would watch them close and see if it progresses. Also search for and pests on the top and bottom of the leaves. You can try neem oil or maliathon(spelling?) to treat for insects.

Hope it helped?

Peace

Big
 
yea i went and bought neem oil diluted it...but i still had gnats coming from the drip runn off tray..so i been slurpin up that water so i dont get root rot or give them a breading ground. i inspected for other pests but thats all i got those gnatss..But there gone again
yea i gave it just its first mollasess/water today..i did however give it a little more fish emulsion /water but just a lil..i think what burned them was i gave them a iron/micro nutes feeding after that they had that burn.. but i noticed today the tips cleard up:joint::blsmoke:
bigman4270 said:
Hey PW, looks like a little niute burn there. Might want to back off on fertilizing them and use just water the next 2 waterings to try and flush out some of the salts. As for the tears, I would watch them close and see if it progresses. Also search for and pests on the top and bottom of the leaves. You can try neem oil or maliathon(spelling?) to treat for insects.

Hope it helped?

Peace

Big
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Uncle ben i am first time grower i have 8 auto flowering plants under a 400 watt and it is 15 inches above i transplanted them 4 days ago to 3 gal containers. The one in the middle is showing leaf curl up bad i use 1/4 strength nuits then recomended i raised the light to 30 inches but the plant still remains curld up i gave her fresh water not a lot, the rest of the laidies look good, they are in a home made box with panda film wrapt around it they get fan air and fresh air, this plant is stressing me out i dont want to go overboard and make it worse thank you very much-- dan
 
great thread bro good information i was wondering if you could tell me whats wrong my my Ice plant? it has had curling leaves at the tips on practically all the growth new and old looks like the tips of the leaves are pointing down and it has been like this for a good 2 or 3 weeks now i use Roots Organic soil i add no extra nutes i water with distilled water and im growing in a cabinet under a 250watt hps with 2 other plants that are looking fine the Ice is the only one curling. anyways i think its heat stress but wouldnt my other plants be showing signs also? anyways here a pic glad i found this thread
 
Uncle Ben, I have the conditions to be a prime victim of moisture and heat stress. Humidity is less than 20% and tempuratures are alway 100-110 during the day. I have a raised bed set up with a timed drip system for my watering, but I haven't found a watering frequency that seems quite perfect yet. I have switched between watering every day and every other day for varying lengths as well as watering in both the morning and evening.

Here are my problems:
*I have leaves that are yellowing and dying on the bottom half of my plants. The leaves pictured below in particular have almost all yellowed and fallen off. They come off the main stem and are always directly below nodes that attach to the stem.
CIMG1316.jpgCIMG1317.jpgCIMG1318.jpg
*I have leaves that are cupping on the top third or so of a coupe plants
CIMG1321.jpgCIMG1320.jpg
*I have leaves that have rusty edges and tips and necrotic spots
CIMG1332.jpgCIMG1330.jpgCIMG1334.jpg
*I have leaves that are crispy and dry feeling at the bottom of some plants
CIMG1329.jpg

My nutes are Jack's 30-10-10- and 10-30-20. I have always been a pretty light feeder and haven't really fed at all over the last month as I thought some damage might somehow be from nute burn.

Curiously, my leaves started to curl after I took out the house and gave my plants a big flush. Could I maybe have had salt build up on the surface that I flushed into the soil? I know I have hard water.

I have been trying to self-diagnose my problems by reading over the last month but I really need some expert advise. They still seem to be growing at a steady rate but these yellow leaves concern me. Are yellow leaves every normal? I just don't understand why most leaves can look so healthy yet I have some that look unhealthy as could be.
Outdoor 7-29.jpg
 
VAPORDAN said:
Uncle ben i am first time grower i have 8 auto flowering plants under a 400 watt and it is 15 inches above i transplanted them 4 days ago to 3 gal containers. The one in the middle is showing leaf curl up bad i use 1/4 strength nuits then recomended i raised the light to 30 inches but the plant still remains curld up i gave her fresh water not a lot, the rest of the laidies look good, they are in a home made box with panda film wrapt around it they get fan air and fresh air, this plant is stressing me out i dont want to go overboard and make it worse thank you very much-- dan
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Being a first time grower suggests you don't have a handle on The Balance, everything it takes to make a plant healthy. Could be from heat, bad root system, don't know. Unless you have a large plant with alot of foliage, a 3 gallon pot will retain too much moisture which can induce root rot.

GANJAxDUBZ said:
great thread bro good information i was wondering if you could tell me whats wrong my my Ice plant? it has had curling leaves at the tips on practically all the growth new and old looks like the tips of the leaves are pointing down and it has been like this for a good 2 or 3 weeks now i use Roots Organic soil i add no extra nutes i water with distilled water and im growing in a cabinet under a 250watt hps with 2 other plants that are looking fine the Ice is the only one curling. anyways i think its heat stress but wouldnt my other plants be showing signs also? anyways here a pic glad i found this thread
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What are the temps? BTW, I hate boxes and cabinets. Too many negatives that go with them.

lvnv said:
Uncle Ben, I have the conditions to be a prime victim of moisture and heat stress. Humidity is less than 20% and tempuratures are alway 100-110 during the day. I have a raised bed set up with a timed drip system for my watering, but I haven't found a watering frequency that seems quite perfect yet. I have switched between watering every day and every other day for varying lengths as well as watering in both the morning and evening.

Here are my problems:
*I have leaves that are yellowing and dying on the bottom half of my plants. The leaves pictured below in particular have almost all yellowed and fallen off. They come off the main stem and are always directly below nodes that attach to the stem.
View attachment 1070943View attachment 1070945View attachment 1070967
*I have leaves that are cupping on the top third or so of a coupe plants
View attachment 1070950View attachment 1070952
*I have leaves that have rusty edges and tips and necrotic spots
View attachment 1070983View attachment 1070985View attachment 1070986
*I have leaves that are crispy and dry feeling at the bottom of some plants
View attachment 1070995

My nutes are Jack's 30-10-10- and 10-30-20. I have always been a pretty light feeder and haven't really fed at all over the last month as I thought some damage might somehow be from nute burn.

Curiously, my leaves started to curl after I took out the house and gave my plants a big flush. Could I maybe have had salt build up on the surface that I flushed into the soil? I know I have hard water.

I have been trying to self-diagnose my problems by reading over the last month but I really need some expert advise. They still seem to be growing at a steady rate but these yellow leaves concern me. Are yellow leaves every normal? I just don't understand why most leaves can look so healthy yet I have some that look unhealthy as could be.
View attachment 1071026
Click to expand...

Well, I can relate as I too am losing a few leaves and they are not as green as I'd like. "Our" problem is most likely due to insufficient N and improper watering. "Light" feeding doesn't tell me anything, all depends on the soil profile and the amount and frequency of food used. The plant will react to the total salts "it sees", which means the sum of the salts in your water supply, soluble salts in your soil and the salts you manually add. Also, unless you flood that bed, most drip emitters are spotty at best. What's the gal./hr of the emitters, are they PC types (pressure compensating), how many, and where are they placed?

In my case, I'm using a high N encapsulated food and am hitting it once in a while with a high urea 35-5-10 as the leaves are not as dark as I'd like. It's flowering well. The crap soil I mixed up has alot of uncomposted pine which requires more N to feed the bacteria. This bacteria uses N to break down the organic material which deprives the plant. The other reason for my leaf loss is that I don't get around to watering it and when I do it's always showing leaf stress.

I'd check for mites too. If you have ultra low RH and high temps you have the perfect environment for rapid production of mites, guaranteed. About a month ago I drenched my soil with orthene (acephate) and imnocloprid, both systemics for insect and mite control.

Good luck,
UB
 
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