xfredo1990x
Member
thanks for all the info here so much info! 
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Joe's Fresh Guide to Sick Plant Diagnosis
- Thread starter joe fresh
- Start date
Newtothis2
New member
Please Help!! 6 weeks into flowering leaves are yellow and drying
Please Help!! 6 weeks into flowering leaves are yellow and drying
Hello all! Thank you in advance for your help.
6 weeks into flower critical kush from seed.
fox farm soil( happy frog) 3 Gallon pot.
600 HPS + 250 MH
Nutes:
House & Garden Soil A & B (whole life cycle)
Earth Juice Cal Mag( started at week 4 of flower)
Rock Resinator(started after leaf condition )
Leaves are brownish yellow in the veins and this started after I had
Spraying with neem oil. They were very healthy up until this point.
I have 7 plants going and there is no coincidence that the two plants affected are Critical Kush. I will post a pic.
Thanks Peeps
Please Help!! 6 weeks into flowering leaves are yellow and drying
Hello all! Thank you in advance for your help.
6 weeks into flower critical kush from seed.
fox farm soil( happy frog) 3 Gallon pot.
600 HPS + 250 MH
Nutes:
House & Garden Soil A & B (whole life cycle)
Earth Juice Cal Mag( started at week 4 of flower)
Rock Resinator(started after leaf condition )
Leaves are brownish yellow in the veins and this started after I had
Spraying with neem oil. They were very healthy up until this point.
I have 7 plants going and there is no coincidence that the two plants affected are Critical Kush. I will post a pic.
Thanks Peeps
Newtothis2
New member
Here's the Pic
Here's the Pic
Here's the Pic
leadbyexample52
Member
Thank you for all the up close and personal pics.... most of the sick plants I see are from so far away.... alot of great info 
leadbyexample52
Member
Could be root aphids?/broad mites? Not to sure sorry I'm kinda new myself just not new too pestsView Image
Any idea what is wrong with my first grow?
The big leaves are starting to have tiny brownish dots of 'em.
Wasn't pests, did some further investigation and it was combination of heat and pH problems. Fixed it and it is growing nicely now
1withdaCouch
Member
Hi all
Hi all
Tay mine's started like the last shotof yours .
Before I resort to some desperate measures, what do you guys think? Thanks all. Bump
Hi all
Tay mine's started like the last shotof yours .
Before I resort to some desperate measures, what do you guys think? Thanks all. Bump
1withdaCouch
Member
Some Useful background:
Some Useful background:
10 P.Haze x Thai "low nitrogen requirements"(Ace) 2 months old
fed with rain water every fourth day to keep gnats at minimum, neem oil spray bath every week.
Central Cali
36 CuF bed Soiless: 80/20 (woodchips, mulch, garden waste, homemade scrap compost/ clay) amended with banana peels, egg shells, epsom salt, potash, very light grass/plant clipping tea 1 time
Its 3 month composted. Soft, loamy, and suppose to be as much organic (or veganic) medium as possible, but after some tip yellowing on fans and stunted/mutated yellow new leaves they aren't putting up a good fight against the outdoors anymore. They stopped growing about a month ago. Its hard to watch
Before
Just some to get the idea. The last one just to share. It has always been funny looking since seed. It is still green though...
Some Useful background:
10 P.Haze x Thai "low nitrogen requirements"(Ace) 2 months old
fed with rain water every fourth day to keep gnats at minimum, neem oil spray bath every week.
Central Cali
36 CuF bed Soiless: 80/20 (woodchips, mulch, garden waste, homemade scrap compost/ clay) amended with banana peels, egg shells, epsom salt, potash, very light grass/plant clipping tea 1 time
Its 3 month composted. Soft, loamy, and suppose to be as much organic (or veganic) medium as possible, but after some tip yellowing on fans and stunted/mutated yellow new leaves they aren't putting up a good fight against the outdoors anymore. They stopped growing about a month ago. Its hard to watch
Before
Just some to get the idea. The last one just to share. It has always been funny looking since seed. It is still green though...
the roots aren't growing. either it's too wet or the ground is too hard.
1withdaCouch
Member
Stignobevoli duly noted
Stignobevoli duly noted
I just got back from good soil turnover. This is what Found:
The first eight inches were soft but the next were indeed dense. It seems that the heavy rains earlier this month have caused settling at the bottom preventing airflow. On another note, there was a huge layer of mycorrhizae right under and throughout the topsoil, followed by happy soil and lots of critters. I love farming.
I followed the stems and the first ones showed up really deep into the mix. I have heard that cannabis has a shallow root growth pattern somewhere within the first six inches of topsoil. These ones were about ten inches deep and retained the party cup shape since i re-potted them.
This tilling has been today's new lesson in cannabis cultivation. It helped me with some of the helplessness blues. It for sure will do the PHxT more good than harm. I will post a link to this grow or pics or something to follow up on the little ones.
Thankyou, thank you...
Stignobevoli duly noted
I just got back from good soil turnover. This is what Found:
The first eight inches were soft but the next were indeed dense. It seems that the heavy rains earlier this month have caused settling at the bottom preventing airflow. On another note, there was a huge layer of mycorrhizae right under and throughout the topsoil, followed by happy soil and lots of critters
. I love farming.I followed the stems and the first ones showed up really deep into the mix. I have heard that cannabis has a shallow root growth pattern somewhere within the first six inches of topsoil. These ones were about ten inches deep and retained the party cup shape since i re-potted them.
This tilling has been today's new lesson in cannabis cultivation. It helped me with some of the helplessness blues. It for sure will do the PHxT more good than harm. I will post a link to this grow or pics or something to follow up on the little ones.
Thankyou, thank you...
1withdaCouch
Member
Joe's Fresh Guide to Sick Plant Diagnosis
Potassium plays a big role as well. Having good amounts of potassium in your plants helps in having sturdy and thick stems, disease-resistance, water respiration, as well aids in photosynthesis. Potassium is also found in the whole plant. It is necessary for all activities having to do with water transportation. Potassium is necessary for all stages of growth, especially important in the development of Buds.
Having to little of Potassium in your plants causes the plants leaves to show retarded growth and show a scorched tip and edges around the leaves. Plants may stretch and your branches can be easily broken or weak. Don’t get this deficiency confused with iron, because it almost acts like iron but to tell the difference in the two is: for potassium the tips of the leaves curl and the edges burn and die. Older leaves may show a red color and leaves could curl upwards. Dead patches (Necrosis) can happen on the margins of larger fan leaves thus, the leaves will eventually die off and turn brown. The Older leaves will show different patches of color (mottle) and turn yellow between the veins, following by whole leaves that turn dark yellow and die. The plants overall growth slows down, mostly when they are in vegetative stage. To little amount of potassium also slows the growth of buds during flowering stages. Dark edges will appear around the edges of the leaf when the deficiency is starting to happen. When your Relative humidity is low, you can almost bet your going to soon get a potassium deficiency from your plants perspiration.
Potassium can get poorly absorbed when having too much Calcium or ammonium nitrogen, and maybe cold weather. Having to much sodium (Na) causes potassium to be displaced. SO keep those in mind… Parts affected by a Potassium Deficiency are: older leaves and leaf margins.
When you have too much Potassium in your soil, it can lead to big troubles, like salt damage and acid fixation of the root system, as well as too much potassium can cause a calcium deficiency. Your fan leaves will show like a light to a dark yellow to whitish color in between the veins. Due to a molecular imbalance, potassium toxicity can cause a reduced uptake and lead to the deficiencies of Mg, and in some cases, Ca. Also leads to the other nutrients to not be absorbed properly leading to lots of other deficiency such as: magnesium, manganese, zinc and iron and can cause problems with calcium as well.
Problems with Potassium being locked out by PH troubles
Soils with excessive Leeching and High ph soils and or water.Soils that are potassium fixated. An excess of kitchen salts (sodium) in the root system/enviroment.
Soil
Potassium gets locked out of soil growing at ph levels of 4.0-5.5
Potassium is absorbed best in soil at a ph level of 6.0-9.5. (Wouldn’t recommend having a ph of over 7.0 in soil) anything out of the ranges listed will contribute to a Potassium deficiency.
Hydro and Soil less Mediums
Potassium gets locked out of Hydro and Soil less Mediums at ph levels of 4.0-4.5, 6.0-6.5.
Potassium is absorbed best in Hydro and Soil less Mediums at ph levels of 4.7-5.3, 6.7-8.5. (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 potassium deficiency.
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That's what it looks like to me. What are you growing in? What is your feeding schedule/ cycle?
Potassium plays a big role as well. Having good amounts of potassium in your plants helps in having sturdy and thick stems, disease-resistance, water respiration, as well aids in photosynthesis. Potassium is also found in the whole plant. It is necessary for all activities having to do with water transportation. Potassium is necessary for all stages of growth, especially important in the development of Buds.
Having to little of Potassium in your plants causes the plants leaves to show retarded growth and show a scorched tip and edges around the leaves. Plants may stretch and your branches can be easily broken or weak. Don’t get this deficiency confused with iron, because it almost acts like iron but to tell the difference in the two is: for potassium the tips of the leaves curl and the edges burn and die. Older leaves may show a red color and leaves could curl upwards. Dead patches (Necrosis) can happen on the margins of larger fan leaves thus, the leaves will eventually die off and turn brown. The Older leaves will show different patches of color (mottle) and turn yellow between the veins, following by whole leaves that turn dark yellow and die. The plants overall growth slows down, mostly when they are in vegetative stage. To little amount of potassium also slows the growth of buds during flowering stages. Dark edges will appear around the edges of the leaf when the deficiency is starting to happen. When your Relative humidity is low, you can almost bet your going to soon get a potassium deficiency from your plants perspiration.
Potassium can get poorly absorbed when having too much Calcium or ammonium nitrogen, and maybe cold weather. Having to much sodium (Na) causes potassium to be displaced. SO keep those in mind… Parts affected by a Potassium Deficiency are: older leaves and leaf margins.
When you have too much Potassium in your soil, it can lead to big troubles, like salt damage and acid fixation of the root system, as well as too much potassium can cause a calcium deficiency. Your fan leaves will show like a light to a dark yellow to whitish color in between the veins. Due to a molecular imbalance, potassium toxicity can cause a reduced uptake and lead to the deficiencies of Mg, and in some cases, Ca. Also leads to the other nutrients to not be absorbed properly leading to lots of other deficiency such as: magnesium, manganese, zinc and iron and can cause problems with calcium as well.
Problems with Potassium being locked out by PH troubles
Soils with excessive Leeching and High ph soils and or water.Soils that are potassium fixated. An excess of kitchen salts (sodium) in the root system/enviroment.
Soil
Potassium gets locked out of soil growing at ph levels of 4.0-5.5
Potassium is absorbed best in soil at a ph level of 6.0-9.5. (Wouldn’t recommend having a ph of over 7.0 in soil) anything out of the ranges listed will contribute to a Potassium deficiency.
Hydro and Soil less Mediums
Potassium gets locked out of Hydro and Soil less Mediums at ph levels of 4.0-4.5, 6.0-6.5.
Potassium is absorbed best in Hydro and Soil less Mediums at ph levels of 4.7-5.3, 6.7-8.5. (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 potassium deficiency.
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View Image[/QUOTE]
That's what it looks like to me. What are you growing in? What is your feeding schedule/ cycle?
1withdaCouch
Member
Anyone have experience with the Nectar For The Gods Nutrient line? I have been using it for about 6 months now and love everything about it except I am starting to experience some nute burn in Veg and Bloom towards the end. I am Vegging under 4kW using Hortilux Super Blue bulbs on 12/12 just switched to 18/6. Using 4x8 trays in HP Microrihhzae and roots OG non 707 with two hoods over each tray. The nute burn in Veg just appeared in the last 2 week's when I started using the full Pro level in Veg.
Attachments
1withdaCouch;63382 Central Cali very light grass/plant clipping tea [URL="https://www.icmag.com/ic/picture.php?albumid=53501&pictureid=1248589&thumb=1" said:
Unless you know for sure that the grass clippings are herbicide free I would not use them. Can't see the pics for some reason
Last edited:
leedsutd95
Member
this is so helpfull. proves just how different needs each strain has as all my ppp are fine and the SLH has mag def. Thanks
greentreefarmer
Member
Hello icmag,
I was gifted some Green Crack seedlings and one arrived with this. I didnt do anything while it stayed in it's pot and it sort of grew out of it, or the problem subsided a bit. Shes in the ground now, in some rich boilogically active soil, next to some of her sisters, and the problem is showing again in full force. She's the only one in the garden displaying this.
Any ideas. Thanks in advance!
I was gifted some Green Crack seedlings and one arrived with this. I didnt do anything while it stayed in it's pot and it sort of grew out of it, or the problem subsided a bit. Shes in the ground now, in some rich boilogically active soil, next to some of her sisters, and the problem is showing again in full force. She's the only one in the garden displaying this.
Any ideas. Thanks in advance!
greentreefarmer
Member
Rookie moves..
Rookie moves..
Rookie moves..
