Dark Purple Disease Affecting New Growth?

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browntrout

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I’m having the same issue with plant I moved outdoor from indoor with no previous purpling. Then took cuttings off it and moved them back indoor. Still very dark purple growth tips.
I was talking to someone with a PhD in plant science she said to send a few pics so I will see what she says.

View attachment 887710View attachment 887711
Please also refer her to this thread if possible. Yours looks a little different, but that may just be how it materializes indoors. Was it attempting to flower before you topped it?
 
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browntrout

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A good amount of my plants are looking better, I also fed them Bud Factor X (Chitosan) along with the foe cyclone spray the other day. We had spome rain shortly after spraying. However the PM that had started was in full force and not just milk residue. I'm unsure how people get such good results with milk.
 
Bobrown14

Bobrown14

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Good to hear BT - good luck with them.

Pests make me work too hard. lol
 
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Smokerheat

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No it was not flowering when I took the cuttings. I haven't heard back form her yet. But I was talking to an old friend that has a degree in plant science. he wasn't to sure but suggest to flush and hit it with some phosphors.
 
E

ej207v8

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Been having the same problem on my first grow. Three Bakerstreet plants with various amounts of branches affected, with the biggest plant having most of it's new growth purple. First noticed it beginning of July in small amounts with it spreading all over the plant by mid august. The leaves turn green as they grow but they are left deformed.

This is an outdoor grow in southern Ontario on lake Erie. I used Pro-mix Hp soil amended with bone, blood, kelp meal, volcanic rock dust, and dolomitic lime in 30 gallon fabric pots. pH is about 6.8 going in, haven't checked the run-off's pH. Temps haven't dropped below 15C during the night but humidity has been high 70%+.
Had minor problems with insects but no infestations, though I have noticed I higher amount of leaf hoppers as of late.

The white is just me experimenting with diatomaceous earth
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Bobrown14

Bobrown14

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A good amount of my plants are looking better, I also fed them Bud Factor X (Chitosan) along with the foe cyclone spray the other day. We had spome rain shortly after spraying. However the PM that had started was in full force and not just milk residue. I'm unsure how people get such good results with milk.

Try Southern Ag - garden friendly fugicide for any pm mold issues. It works great.
 
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Jimster

Jimster

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I saw this on a site overseas. FWIW.
 
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J

Joebuds

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What’s your feed like? Nute type and quantity or ppm?
Strains affected? What is the feed schedule?
Cold, temps?
Too much phos? Possibly
I’ve not seen a persay disease that causes that color. Could be strain related ? But I suspect phos
 
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Jmaes Mabley

Jmaes Mabley

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Its a Phytoplasma, and any plant affected, and has seeds, and they are used, they will also be infected.

Theres no getting rid of it after theyre infected. In the East, Leafhoppers are the main culprit.
Broad, and Russet Mite are also on the way, and Broadmites, are also a vector, and tough to kill.
Plants may rebound some, but are still compromised, and I would not smoke anything I know that's been infected with any kind of bacteria.
 
B

browntrout

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Its a Phytoplasma, and any plant affected, and has seeds, and they are used, they will also be infected.

Theres no getting rid of it after theyre infected. In the East, Leafhoppers are the main culprit.
Broad, and Russet Mite are also on the way, and Broadmites, are also a vector, and tough to kill.
Plants may rebound some, but are still compromised, and I would not smoke anything I know that's been infected with any kind of bacteria.


I'm not sure i agree to continued damaging affects in seed, I am growing seed of last years cross out of purple infected plants. I have these going at multiple locations with no sign of reduced capabilities or any sign of purple except for the ones in the area that gets this along with everything else.

I also have clones from a purple infected plant (LA Con) from last year (taken from revegged infected plant) and no issues areas where this is not known. It performs as it always has indoors and out.

This has been my experience however.
 
Jmaes Mabley

Jmaes Mabley

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If it is indeed a phytoplasma. Im going to go as far and say it probably Witches Broom....research says it is passed on in the genes and is mostly brought by leafhoppers, but basically any bug that feeds/bites the plant can potentially transmit the bacteria. Whether it expresses it/mutation, or not, is a different question, as some plants may be more resistant. But SOP is to get rid of the infected plants, as it can infect bugs that may bite the plant, jump onto your Noninfected plant, bite it, and then on, and on.

I showed my buddy that's been having the problem going on 6 years now, some photos of other plants ( Buddys been growing 45 years, and is 70 ) with Witches Broom, and he is also all but certain it is the same thing. It just can look a bit different on some plants vs weed, but the twisted, gnarly, necrotic leaves they have in common.
I also showed him the photos posted last year of infected plants, and he instantly said his is the same thing, though I already knew as I told him it was last year. I lost all kinds of really good strains/seeds to this plague. Genetics I cant get anymore.

This place may test???

Contact The Crop Doctor Laboratory

Heather B. Vallier, Ph.D
Senior Plant Pathologist, Nematologist
Virologist, & Plant Health Diagnostician

Phone: (805)927-7707
Email: [email protected]
1375 E GRAND AVE, Ste. 103-133
ARROYO GRANDE, CA 93420
 
Jmaes Mabley

Jmaes Mabley

693
143
As far as I know, Ive seen no cure for it.
Early Controlling of insects/mites ect is the key. Remember Mites are not insects, and insecticides usually wont bother mites, unless its dual acting, like Avid. Mites are Arachnids.
While I nor my buddy have used them, Id suggest rotation Avid, and Senmite. Senmite is specifically for killing Broadmites.

Phytoplasma Life Cycle – What Is Phytoplasma Disease In Plants

Diseases in plants can be very difficult to diagnose due to the nearly infinite numbers of pathogens. Phytoplasma disease in plants are generally seen as “yellows,” a form of disease common in many plant species. What is phytoplasma disease? Well, first you need to understand the phytoplasma life cycle and how they are spread. New studies indicate that phytoplasma effects on plants can mimic damage shown by psyllid insects or leaf roll virus.

Phytoplasma Life Cycle

Phytoplasmas infect plants and insects. They are spread by insects through their feeding activities which inject the pathogen into the phloem of the plants. The pathogen causes a host of symptoms, most of which are all potentially damaging to plant health. Phytoplasma live in the phloem cells of a plant and usually, but not always, cause disease symptoms. These tiny pests are actually bacteria with no cell wall or nucleus. As such, they have no way to store necessary compounds and must steal these from their host. Phytoplasma are parasitic in this way. Phytoplasma infect insect vectors and replicate within their host. In a plant, they are limited to the phloem where they replicate intracellularly. Phytoplasma cause changes in their insect and plant hosts. The changes in the plants are defined as diseases. There are 30 recognized insect species which transmit the disease to various plant species.

Symptoms of Phytoplasma Phytoplasma disease in plants can take on several different symptoms.

The most common phytoplasma effects on plants resemble the common “yellows” and can affect over 200 plant species, both monocots and dicots. The insect vectors are often leafhoppers and cause such diseases as: Aster yellows, Peach yellows, Grapevine yellows, Lime and peanut witches’ brooms, Soybean purple stem Blueberry stunt.
The primary visible effect are yellowing leaves, stunted and rolled foliage and unripened shoots and fruits. Other symptoms of phytoplasma infection might be stunted plants, a “witches’ broom” appearance on terminal new bud growth, stunted roots, aerial tubers and even die back of entire portions of the plant. Over time, the disease can cause death in plants.

Managing Phytoplasma Disease in Plants

Controlling phytoplasma diseases usually begins with controlling insect vectors. This starts with good weed removal practices and clearing brush that can host insect vectors. Bacteria in one plant can also spread to other plants, so often removal of an infected plant is necessary to contain the contagion. Symptoms appear in mid- to late summer. It can take 10 to 40 days for plants to exhibit infection after the insect has fed on it. Controlling leafhoppers and other host insects can help control the spread of the disease. Dry weather seems to increase leafhopper activity, so it is important to keep the plant watered. Good cultural care and practices will increase plant resistance and spread.



The primary visible effect are yellowing leaves, stunted and rolled foliage and unripened shoots and fruits. Other symptoms of phytoplasma infection might be stunted plants, a “witches’ broom” appearance on terminal new bud growth, stunted roots, aerial tubers and even die back of entire portions of the plant. Over time, the disease can cause death in plants.
 
basscaptain

basscaptain

5,275
313
If it is indeed a phytoplasma. Im going to go as far and say it probably Witches Broom....research says it is passed on in the genes and is mostly brought by leafhoppers, but basically any bug that feeds/bites the plant can potentially transmit the bacteria. Whether it expresses it/mutation, or not, is a different question, as some plants may be more resistant. But SOP is to get rid of the infected plants, as it can infect bugs that may bite the plant, jump onto your Noninfected plant, bite it, and then on, and on.

I showed my buddy that's been having the problem going on 6 years now, some photos of other plants ( Buddys been growing 45 years, and is 70 ) with Witches Broom, and he is also all but certain it is the same thing. It just can look a bit different on some plants vs weed, but the twisted, gnarly, necrotic leaves they have in common.
I also showed him the photos posted last year of infected plants, and he instantly said his is the same thing, though I already knew as I told him it was last year. I lost all kinds of really good strains/seeds to this plague. Genetics I cant get anymore.

This place may test???

Contact The Crop Doctor Laboratory

Heather B. Vallier, Ph.D
Senior Plant Pathologist, Nematologist
Virologist, & Plant Health Diagnostician

Phone: (805)927-7707
Email: [email protected]
1375 E GRAND AVE, Ste. 103-133
ARROYO GRANDE, CA 93420
I just moved from ca, and 1 of you guys Should get with her asap... that is having this problem... Or someone else out there . No one is going to give you a problem out there about growing n etc. But someone should find out whats going on......
 
Bobrown14

Bobrown14

274
63
This disease seems to be pretty widespread thruout the world. I did a google on phytoplasma and cannabis or hemp. It's a thing and been a thing for a while.

Hopefully now that the USA farm bill has hemp/cannabis included there will be some studies done at the universities to hopefully come up with a cure.
 
Jmaes Mabley

Jmaes Mabley

693
143
It was first discovered by 2 Japanese scientists in 1967-68, and a year later found in India. They predicted its worldwide spread 50 years ago.
 
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