Guide for Diagnosing Plant Problems

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zdubbb

Member
Can someone help me identify what's wrong with my plants? I think there's multiple problems at hand so I'm having a tough time identifying the issue.

I have two plants growing in a soil water-recycling drip system, the temperature is about 87 degrees and the humidity ranges from 50-60%. The plants are about a month old and I just put them into flower stage last night because they're already pretty big. The plants were doing fine until about last week and it seems like the tips of all of the leaves are burnt. I had recently added literally about a half teaspoon of jungle juice nutrient to the tank which holds at least 10 gallons of water. After seeing the results, I flushed out the soil and refilled the tank because I assumed I gave them too much or maybe the soil retained too much nutrient. Some of the leaves seem a little droopy and then some actually look like they're dying on the edges. The reservoir has a good air stone in it so the water has a lot of oxygen dissolved in it and the drainage should be fine because I'm using fabric pots that are elevated by rocks so they won't sit in the water. Please help me!

photo-5.jpgPhoto on 9-4-13 at 10.34 PM.jpgPhoto on 9-4-13 at 10.35 PM.jpgPhoto on 9-4-13 at 10.35 PM #2.jpgPhoto on 9-4-13 at 10.36 PM.jpgPhoto on 9-4-13 at 10.36 PM #2.jpgPhoto on 9-4-13 at 10.36 PM #3.jpgPhoto on 9-4-13 at 10.37 PM.jpgPhoto on 9-4-13 at 10.38 PM.jpg
 
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chargerjohn760

New Member
Ive been growing for about 4 years now so I like to think I know a little about marijuana cultivation however Im kinda stumped.I got some clones about a week ago, the growth has been good but it seems one plant puts out 3 finger leaves and the others look kinda mottled. Any advice? Hopefully just stress I dont know.
 
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chargerjohn760

New Member
Looks like some sort of deficiency, I cant tell. All I can say is make sure you give them a ''complete'' fertilizer. Try getting a hold of the pink, powdery Maxibloom from general hydroponics. I use this about every other feeding in soil and haven't had any deficiency's since I started.
 
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zdubbb

Member
chargerjohn760 said:
Looks like some sort of deficiency, I cant tell. All I can say is make sure you give them a ''complete'' fertilizer. Try getting a hold of the pink, powdery Maxibloom from general hydroponics. I use this about every other feeding in soil and haven't had any deficiency's since I started.
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good advice. it doesn't cause your soil to retain too much nutes?
 
SxIstew

SxIstew

Well-Known Member
zdubbb said:
Can someone help me identify what's wrong with my plants? I think there's multiple problems at hand so I'm having a tough time identifying the issue.

I have two plants growing in a soil water-recycling drip system, the temperature is about 87 degrees and the humidity ranges from 50-60%. The plants are about a month old and I just put them into flower stage last night because they're already pretty big. The plants were doing fine until about last week and it seems like the tips of all of the leaves are burnt. I had recently added literally about a half teaspoon of jungle juice nutrient to the tank which holds at least 10 gallons of water. After seeing the results, I flushed out the soil and refilled the tank because I assumed I gave them too much or maybe the soil retained too much nutrient. Some of the leaves seem a little droopy and then some actually look like they're dying on the edges. The reservoir has a good air stone in it so the water has a lot of oxygen dissolved in it and the drainage should be fine because I'm using fabric pots that are elevated by rocks so they won't sit in the water. Please help me!
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Magnesium Deficiency
https://www.rollitup.org/nutrients/712483-nutrient-pest-prolem-solver-pictorial.html
Hydro and Soil less Mediums

Magnesium gets locked out of Hydro and Soil less Mediums at pH levels of 2.0-5.7
Magnesium is absorbed best in Hydro and Soil less Mediums at pH levels of 5.8-9.1
(Wouldn’t recommend having a pH over 6.5 in hydro and soil less mediums.) Best range for hydro and soil less mediums is 5.0 to 6.0. Anything out of the ranges listed will contribute to a Magnesium deficiency.

Solution to fixing a Magnesium deficiency
Any Chemical/Organic nutrients that have Magnesium in them will fix a Magnesium deficiency. (Only mixing at ½ strength when using chemical nutrients or it will cause nutrient burn!)
Other nutrients that have magnesium in them are: Epsom salts, which is fast absorption. Dolomite lime and or garden lime (same thing just called different) which is slow absorption. Sulfate of Potash, Magnesia which is medium absorption. Worm Castings, which is slow absorption. Crabshell which is slow absorption. Earth Juice Microblast, which is fast acting. (a must buy!! Has lots of 2ndary nutrients).
Now if you added to much chemical nutrients and or organics,( which is hard to burn your plants when using organics) You need to Flush the soil with plain water. You need to use 2 times as much water as the size of the pot, for example: If you have a 5 gallon pot and need to flush it, you need to use 10 gallons of water to rinse out the soil good enough to get rid of excessive nutrients.

Picture one shows a mid grade magnesium deficiency.
Click to expand...
 
viruscrop

viruscrop

Member
any1 know whats up wid my plant..
strain: kens gdp
stage: 4 weeks into flower
lights: (1) 125w cfl
and (2) 35w cfl 150w equivalent
growpot:dwc 5 gallon bucket

yellow spots starting to appear on my fan leaves.....2014-01-13 04.36.36.jpg2014-01-13 04.36.28.jpg2014-01-13 04.36.50.jpg
 
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bizmarc

New Member
I have same problem stop growing looks green .leave stress.curl a little plant doesn't grow I planted 4 .Two are healthy and one stop growing but looks healthy the other one growing slow.what could it be
 
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~Dankster~420

Well-Known Member
Hello. Just thought I would let everyone know I have a little side by side grow going. No rules or anything, all in fun, wish I could give out prizes to the winner, but its against forum rules. Anyways I would like if everyone could join. I also added a side bonus. Lets see who can get those 3 ounce monster cola's or more ;) 3 ounce contest thread -> https://www.rollitup.org/p/10396937/

side by side thread --> https://www.rollitup.org/p/10392841/
 
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mattstapo

Member
Hello all.

Kinda new to growing. First real grow, long time toker. Currently in Australia. Girls I have here are from crop king seeds. Northern lights auto flower. But as you can see there are some yellowing issues. Any help would be greatly appreciated.

Peace
 

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Smokinr33

Smokinr33

Well-Known Member
Hey bro im on the island next to you, the one with the sheep lol and i wouldnt worry about this as mine did the exact same. Once the leaves reached an older state they turned green again. Ps where did you find you seeds? Im in need of a good bank thats trust worthy

Sent from my GT-I9500 using Rollitup mobile app
 
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ODUBS

Member
Hi everyone

These plants are growing in miracle gro moisture control and they are 6 weeks old...they spent the first 5.5 weeks inside under CFL bulbs and are now outside for a few days hardening up before transplanting permanently outdoors in the garden

They have developed some discoloration on the lower/older leaves as seen in the two photos below and I'm wondering if it's a mild sign of stress from going indoors to outdoors that i should be concerned about or if it's a nutrient deficiency.

Any HELP appreciated :)
 

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