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Old 10-12-2017, 10:14 PM #1
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Question Botrytis is systemic, right?

Botrytis is systemic right, not endemic? Like I have a plant that is obviously infected, if I take a cutting of a branch that looks okay, it is still infected right? Even if I grow that out into a clone and then take a cutting off the clone, it will still have botrytis in the plant cells? I have an outdoor plant that is obviously screwed, but somebody said I could clone a clone and it would be okay, but that sounds like bullshit to me. Ya'll would definitely know better than me though
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Old 10-13-2017, 03:27 AM #2
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Botrytis isn't systemic I believe. PM is and will be in the cuts from an infected branch. With Botrytis, take a cut from a healthy branch preferably with a small flower on it as humidity can cause botrytis in a dense bud.

Also, if the buds are full of botrytis, why take a cut? Find a mold resistant strain for next year.
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Old 10-13-2017, 05:56 AM #3
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Botrytis is an opportunistic mold, you are breathing it as we speak as am I, it is endemic for sure, it can get into the vascular tissue around a wound and rot the stem but not infect the entire plant through the vascular tissue.

You could try different pruning techniques to get more branches with smaller buds, do canopy thinning so that you get a better airflow around those buds and trim off lower branches/popcorn to increase airflow and less stress on the plant but you may still end up with botrytis, location is good as well, area with full sun, not at the bottom elevation and least prone to frost and condensation will help but not cure it if it is susceptible.
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Old 10-13-2017, 08:41 AM #4
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Yeah, basically it's an outdoor plant somebody else started, supposed to be a very strong sativa in the order of 25%+ thc so just wanted to see if it was possible to save through a cutting. They have other seeds so it isn't a real genetic emergency or anything. Thanks for the answers guys!
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Old 10-13-2017, 09:46 AM #5
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Spore born and there are many types.

i had one type of downey mildew that when the temp and moisture was right fruited mushrooms.
Pseudoperonospora cubensis

used green cure hydroperoxide sulfur etc..etc.. recommended?
Tanos (famoxadone}

lost a lot of genetics from BOGS gear.
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Old 10-13-2017, 02:29 PM #6
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It's Systemic, it's clearly environmentally driven but is often asymptomatic so it will not show in some hosts. For instance bud rot can remain hidden right until it gets the environment it wants and even then it might not always show, it can be passed with seeds.
You can screen for it with PCR tests, I'd search out a paper on it by a M Shaw which was done last year on this.
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Old 10-13-2017, 02:32 PM #7
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I agree with the above posters boytritis spores are everywhere waiting for the right conditions to sprout. If you take a cutting and move it indoors the cutting should be fine. Grey mold is a disease of opportunity waiting for cool temperatures, high humidity, and the proper PH. Change the conditions and it will be fine.
My area has stretches where it is cool and humid so I often suffer bud rot. This year was sunny and warm, I found spots in buds where grey mold had started and died. Killed by the sunlight and dry temperature. A dry dead spot in the bud that is easily removed.
have a problem with stem rot. The stem will get an infection, grey mold will start rotting through it. If I catch it, sterilize it, the wound heals. I've lost whole plants that way, all it takes is an inch of rot to cut through the heart of the stem.
I select for mold resistance but in the fall it gets so wet any large bud is prone to rot. High potency large yielding strains will always be susceptible at temperatures below 65 degrees and above 80% humidity. So it's a question of trade offs. I would rather grow the best ganja, letting it finish all the way then harvest early or grow less potent earlier strains. My losses aren't large enough to justify giving up on the stuff I like.
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Old 10-13-2017, 02:36 PM #8
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Quote:
Originally Posted by Limeygreen View Post
Botrytis is an opportunistic mold, you are breathing it as we speak as am I, it is endemic for sure, it can get into the vascular tissue around a wound and rot the stem but not infect the entire plant through the vascular tissue.

You could try different pruning techniques to get more branches with smaller buds, do canopy thinning so that you get a better airflow around those buds and trim off lower branches/popcorn to increase airflow and less stress on the plant but you may still end up with botrytis, location is good as well, area with full sun, not at the bottom elevation and least prone to frost and condensation will help but not cure it if it is susceptible.
It's systemic, just because you don't see something does not mean it is not there!... Botrytis can complete its cycle without showing symptoms but it is/was still there...

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Old 10-14-2017, 04:15 PM #9
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Quote:
Originally Posted by Yard dog View Post
It's Systemic, it's clearly environmentally driven but is often asymptomatic so it will not show in some hosts. For instance bud rot can remain hidden right until it gets the environment it wants and even then it might not always show, it can be passed with seeds.
You can screen for it with PCR tests, I'd search out a paper on it by a M Shaw which was done last year on this.
Can you provide a link that proves it is systemic and be passed on in a seed. I search and can't find anywhere it says anything like that. I find that it is a fungus common in grapes. I can't understand how a spore is in a seed...
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Old 10-14-2017, 04:56 PM #10
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Quote:
Originally Posted by EsterEssence View Post
Can you provide a link that proves it is systemic and be passed on in a seed. I search and can't find anywhere it says anything like that. I find that it is a fungus common in grapes. I can't understand how a spore is in a seed...
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4861902/
https://vegetablemdonline.ppath.corn...ansmission.pdf
https://www.canna-uk.com/botrytis_cinerea_in_detail
https://www.ncbi.nlm.nih.gov/pubmed/18942979

spores are just the reproductive cells, I gave you the name for the link in the posts above. Grapes are sometimes actually infected with forms of Botrytis on purpose look up "noble rot". (I've added the last link as it's specific to seed)

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