Issue with new growth turning purple

['Boogieman']

I'm dealing with this for the first time ever and it's just strange. At first I didn't think anything of it but after reading more and more I'm just wondering if I should clip the branches with purple tops out. Only a couple branches are doing it, the curling just started. I fed my plants a good dose of fish hydrolysate and a few tops turned green again but I'm not sure if that was just a coincidence. I think I have a mild case but I'm considering cutting out the branches still showing dark purple on the tops.

 

[redlaser]

Nutrient antagonism may be the issue.

Nutrient in excess: / / Nutrients affected:
—————————— —————————-
Nitrogen. // - potassium,calcium

Potassium. // -nitrogen, calcium, magnesium

Phosphorus. // - zinc, iron, copper

Calcium. // -Boron, magnesium, Phosporus

Magnesium. // -copper, potassium

Iron. // - magnesium

Manganese // - iron, molybdenum, magnesium

Copper. // -molybdenum, iron, manganese, zinc

Zinc. // - iron, manganese,

Molybdenum. // - iron, copper

Sodium. // - potassium, calcium, manganese

Aluminum. // -phosphorus

Ammonium. // - Calcium, copper

Sulphur. // Molybdenum

There are more readable charts available by searching nutrient antagonism chart.

I don’t have this exact issue, but have had 3-4 plants underperforming this year in beds of reused soil on its third run.

Mine looked like a shortage or an excess of something, and was probably a result from previous years attempts at correcting an issue.
On some plants I excavated soil 12”x12” around rootball and replaced with soil from a different part of same bed.
On all lagging plants I applied 2 cups gypsum (5 ft plant) over root zone, watered in, and then put two times soil volume of water through it. This was after thoroughly saurating media before adding gypsum . (Oversaturating)

All plants are doing much better, the two that had the 12”x12” trenching around their roots are only a few inches smaller than the 100% unaffected ones and have no obvious issues anymore.

The ones with only the gypsum rinse are a lot better than they were, but the excavated two that also got 1-2 cups gypsum rinse are almost caught up to unaffected plants

 

[CannaRed]

I checked my outdoor GSC M today, was doing it on only the tips of one branch, now also two tips on another branch.

I too wonder if I should remove the tips, or the whole branch or if it will even matter.

The purple seems to fade as the leaf gets bigger.

I removed a few branches and zero have hollow stems. None of my 17 outdoor plants have hollow stems.

The temp did drop here to the 60's one night about 2 1/2 weeks ago-i think. But there shouldn't have been new purple growth since then.
Unless it was there the whole time and I missed it.

If it is a pathogen I sure hope it doesn't spread to my other plants.

 

['Boogieman']

I'm going to try dawn dish soap, if it's bacterial that should kill it correct? I understand this is not the correct soap for plants but this is my last shot before I cut the infected branches anyways so it seems like an ok last shot measure? What do you think?

 

['Boogieman']

Dawn dish soap does not work, I really didn't think it would but it was worth a try.

 

[Grnhlthnhapyns]

Me too. Purple edge of one blade of a new grow tip on 1out of 5 plants. Happens to be a widow hybrid. Possible with chemdawg91. I've been chalking it up to day and night temps causing what looks to be periodic lockout (time wise)

 

[CannaRed]

I chopped down my GSC M with the purple growing tips. I didn't want any pathogens to spread to other plants.
It was getting huge and I was worried that it could be smelled from road. Or seen from air.

 

[Lost in a SOG]

Id defo say P def with new growth purpling.

 

['Boogieman']

Id defo say P def with new growth purpling.

It's not a P deficiency trust me.

 

[browntrout]

It's not a P deficiency trust me.

lol some people eh, "read two pages, this is the issue, peace"

Not a hope in hell it is a straight P deficiency, it is likely it is phytoplasma caused by leafhoppers or mites.

 

[browntrout]

Here's a picture of a more severe case, usually the lowers on big plants look like this after a while.

 

['Boogieman']

I cut down two plants today and pruned another pretty heavily. The only strains I'm growing with no signs of this purple shit is Durban poison from dutch passion and special kush from royal queen seeds. All Original Glue hybrids got hit really bad those are the ones I cut down.

 

[kalopatchkid]

Here's a picture of a more severe case, usually the lowers on big plants look like this after a while.

Need this pic on the first page of the thread so people understand its not just purple/black new growth...it eventually grows into blistered/mutated leaves.



I'm hoping people arent just killing naturally purple plants thinking its plant disease.

 

[browntrout]

Need this pic on the first page of the thread so people understand its not just purple/black new growth...it eventually grows into blistered/mutated leaves.



I'm hoping people arent just killing naturally purple plants thinking its plant disease.

Added. This behaves in like no other deficiency/genetic trait imo.

 

[browntrout]

Feast your eye balls on this shit:

 

[PDX Dopesmoker]

Feast your eye balls on this shit:

I'm not sure if you think you have mites or fungus, but you should probably spray sulfur either way.

 

[browntrout]

I'm not sure if you think you have mites or fungus, but you should probably spray sulfur either way.

I tried some low dilution slphur/copper spray and other products, 1/2 of my plants are in bud, Would you recommend spraying in bud?

 

['Boogieman']

Feast your eye balls on this shit:

I'm unsure what I'm looking at, is the last pic a broad mite? I'm going to be using sulfur early on here on out.

 

[browntrout]

I'm unsure what I'm looking at, is the last pic a broad mite? I'm going to be using sulfur early on here on out.

I'm not well versed in broads but i would say with almost certainty yes.

 

[Grnhlthnhapyns]

Black/navy/purple tip progression.

Black/navy/purple tip progression.

Noticed 1 top last week. Side branch. Tiny. I clipped it out thinking it got attacked by a critter and I'm nipping any pathogen problem early before spread. This is same plant. 1 new tip. Few days since I posted in this thread