Leaves yellow, curle up, purple stems and purple stem veins, burned parts of leaves

[nici]

Hi guys, to give you some baseline: I grow in organic soil, temp is between 75 - 85, I got fans in my growing rooms, MH light in growing and HPS in flowering room both 400W. I pH my water between 6.5-6.8, soil pH is about 6.9 as of today. Couple of months ago I started noticing the edges of leaves curling up. Over time growth was stunned, leaves started yellowing and stems turning purple. There are also purple veins on the main stems. I was getting no roots so I thought it is a root rot and treated with hygro-zyme. Now I am getting tons of roots, more than ever but all the other symptoms are still there. I thought there might be something wrong with my super soil mix (organic soil, bat quano, bone meal, dried blood, Epsom salt, garden lime). I got organic soil mix "Mana" which should have all the stuff already in it. Changed soil, but it didn't help. I even changed a strain, which started of great, but after about 5 weeks I already started noticing the curling at the edges of the leaves and now about a month later, the new strain is as sick as the rest of them if not worse. The leaves are pale green and continue to turn yellow with hint of purple on them. I even looked into viruses (but the only one I could find info about was Mosaic virus and the symptoms of it really don't match). It all matches different things...N def, Mg def, Zn def..., there has to be one thing that is causing this. I haven't had a problem with my soil or nutrients in 5 years. Has anyone had any experience with this issue? Thank you ahead for any help and advice.

 

[jondamon]

It looks to me like your super soil isn't packing the punch that it should with the pale plant.

Just simply looks hungry which is why you are seeing multiple def symptoms.




J

 

[lamopa]

How often are you watering/nuting? Looks like classic nute burn to me. Soil can be tough sometimes. I recommend switching to hempy buckets, much easier and less messy than soil.

 

[nici]

Well that's just the thing, I switched soil to see if there would be any difference, but there wasn't. I switched from my super soil (thinking it might be too much) to Mana organic soil which doesn't have that many nutrients in it. But no change. I get great roots. The plants are telling me something is seriously wrong and it's so frustrating not knowing what to do. I will try to feed them some micronutrients since my NPK is good. I wish someone had experienced this and would be able to help

 

[chuck estevez]

where do you get your water from? You might want to also look into a 60x microscope and look for broadmites.http://pogenetics.com/?page_id=389

 

[Jimdamick]

It seems the only constant here possibly is the nutes. Do you use any? Also PH 6.9 is a little high in soil

 

[Lo Budget]

#4 looks like what happened to my plants after I ran out of rain water & used tap water. I almost killed them. Turns out my tap water is 10+. And, according to my water company that's within their specs. I immediately switched to bottled water and they are very happy now. I hope it rains soon because I don't want to schlep a bunch of water home for them. But, I will if I have to.
(My tap water used to be much lower, I usually have to add soda ash to the pool to bring the ph up). What kind of water are you using? Can you try something else on one of them to see if it helps? I know you ph your water, but I would start there.



Not a great pic. All I have at the moment, I'll grab a better one soon.

 

[jondamon]

If this plant was mine and I knew pH was correct I would be looking at feeding it more nutrients.

Regardless of what you think is in your supersoil this plant looks hungry




J

 

[nici]

Thank you, I haven't been giving them as many nutrients since I switched soil. I just now fed them with some micronutrients, bat quano, bone meal and dried blood. All organic, but just half of strength of what the bag said. Fingers crossed. I do use tap water, but I pH it and right now my soil pH is 6.9, so that shouldn't be an issue. I am scared of rain water since I had spider mites last year, couldn't get rid of them for 8 months...what a nightmare! Thank you all very much for your help! +rep to all and I will keep you posted on what happens.

 

[cooliomang]

time to feed those babies!

 

[firsttimegrower1993]

NITROGEN (N)Pale plants, red stems, smaller growth. Rapid yellowing of lower leaves progressing up the plant. Add any chemical fertilizer containing N. Treated plants recover in about a week.

PHOSPHORUS (P)Slow or stunted growth, red stems. Smaller leaves that are dark green. Lower leaves yellow and die. Add chemical fertilizer containing P. Affected leaves will not show recovery but new growth will appear normal.

MAGNESIUM (Mg)Lower leaves yellow and may even turn white while veins remain dark green. Blades die and curl upward.

IRON (Fe)Leaves on growing shoots turn pale and veins remain dark green. pH imbalances make iron insoluble. Foliar feed with chemical fertilizer containing Fe or rusty water.

MOLYBDENUM (Mb)Yellowing of middle leaves. Foliar feed with chemical fertilizer containing Mb.

OVER FERTILIZATIONCauses leaf tips to appear yellow or burnt. To correct soil should be flushed with three gallons of water per one gallon of soil.

 

[nici]

Thank you! I think it's lack of nutrients...just fed them today and now it's a waiting game to see if it helps.

 

[barryscott 89]

Did That work m8?

 

[barryscott 89]

Ive seen this a few times an no1 seems 2 be able 2 answer. I swear its 2 do with ph.

 

[chiefrokaho]

Thank you, I haven't been giving them as many nutrients since I switched soil. I just now fed them with some micronutrients, bat quano, bone meal and dried blood. All organic, but just half of strength of what the bag said. Fingers crossed. I do use tap water, but I pH it and right now my soil pH is 6.9, so that shouldn't be an issue. I am scared of rain water since I had spider mites last year, couldn't get rid of them for 8 months...what a nightmare! Thank you all very much for your help! +rep to all and I will keep you posted on what happens.

Bone and blood are slow release. Mite wana look to acts