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Fighting mold ......still :-(

Posted by xgrndpounder Z 8 E. Tx. (My Page) on
Sun, Jan 31, 10 at 10:11

I have a few Hollier cuttings that are giving me fits with mold!
I have cleaned them with Dawn AB & 10% clorox 3 times
the darn mold keeps coming back.
I have followed Dan's method step by step.

Any Idea's?

thanks
Cecil


Follow-Up Postings:

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RE: Fighting mold ......still :-(

The best way to deal with mold is with PREVENTION. It is important to properly clean cuttings to prevent it from occurring in the first place. It is difficult to control once it reaches the cambium layer......because chemicals have a hard time penetrating that deep. I have used an ultra-sonic bath for deeper penetration and more effective cleaning, but that device is not something many people have in their tool kits. Besides, ultra sonic baths are not really needed if the cuttings are promptly cleaned right after they are taken and then stored properly. Mess up in the beginning steps and you can end up fighting mold down the line. Not much can be done once it reaches the cambium layer other than Surgically removing those moldy parts if possible. Good luck.

Dan


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RE: Fighting mold ......still :-(

Thanks Dan,

So far only having mold problems on one cutting, if it shows anymore mold I will cut away the part that is getting the mold, then if it shows it's ugly head again, that cutting is going into the garbage.

Thanks
Cecil


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RE: Fighting mold ......still :-(

  • Posted by tapla z5b-6a MI (My Page) on
    Sun, Jan 31, 10 at 11:23

Cecil - try tenting the cuttings with clear plastic so nothing touches them and they don't touch each other - and keep them in good light. Make sure the 'tent' is vented so you get some air flow.

Al


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RE: Fighting mold ......still :-( !

Hi Al,

The cuttings are in a baggie wrapped in a damp paper towel.

So if I'm reading this right, I should take them out of the paper towels and separate then into separate baggies, or clear
containers, I have a bunch of clear plastic jugs that we get when we buy orange juice, would something like that work?
Thanks very much.
Cecil


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RE: Fighting mold ......still :-(

Al,

I went ahead and cupped them up in UPM and then I put cups on the top with one 1/4" hole for a vent!
I hope they "take"

thanks again,
Cecil


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RE: Fighting mold ......still :-(

  • Posted by tapla z5b-6a MI (My Page) on
    Sun, Jan 31, 10 at 12:12

It's highly probable the mold spores were contained in the unsterile medium. Perlite, screened Turface, or other sterile mediums (other than vermiculite) would be a better choice. Wishing you good luck!!

Al


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RE: Fighting mold ......still :-(

How about using Spaghnum Moss. I have cut ends off many times to check molds like what I did to my Lamperia. It was down to 2 plus inches & it rooted. Worst scenario, write me privately if your source have no wood to spare. I will hold my last bit of spare Hollier for you. This is too good a variant to go without as I read you have lost one last year.


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RE: Fighting mold ......still :-(

Thanks Paully

We will keep that in mind!

I think I might be able to root at least one (fingers crossed)
Regards
Cecil


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RE: Fighting mold ......still :-(

AL and I are on opposite ends on the spectrum for suggested rooting material....go figure. One does not need to use a sterile rooting mix to not have mold problems while rooting your cuttings. Exactly follow the directions I have given for cleaning, storing, and rooting cuttings and you will not have mold problems.

Few people (if any) have conducted the research on fig cutting mold to the extent that I have. Few know about the many chemical agents, ozone generators, UV lights, ultra-sonic baths, etc. that I have experimented with. From all of this work, what is perfectly clear to me is that IT TAKES ALL THREE OF THESE THINGS for mold to manifest itself.......1) mold vectors (mold, mildew, spores, bacteria, fungus, and yeast) 2) Food (mostly sugars and some other light hydrocarbons) and 3) Liquid Water (usually from uncontrolled moisture). ELIMINATE ANY ONE of those three things through good methodology and you will not see any mold develop on your cuttings. Even if mold spores are present in your rooting mix, they WILL NOT GROW without food or uncontrolled moisture. My methods and suggestions recognize these facts and virtually eliminate mold issues.

Cecil, from what you are describing, mold has already reached the cambium layer of your cutting. All three conditions for mold are now present in that layer .....mold vectors, food, and moisture are now in that layer which his why you are seeing mold. Cleaning your cuttings again is not likely to work as the chemicals will have a hard time penetrating and reaching deep into that inner layer. It is the same with the sunlight suggestion offered by Al. Sunlight will not penetrate nor reach deep into the layer where all three mold conditions are still met. Sunlight can only help a bit with SURFACE mold.

The main component of sunlight that WILL KILL "SOME" (note that I said SOME) of the mold vectors comes for the ultra violet or UV part of the spectrum. One can use concentrated UV light (as I have) to treat cuttings for mold. (UV lights are those black lights that some fisherman use to attract fish at night....they are available in the sporting goods section of many stores.) However, even strong UV light is not as effective as chemical cleaners in killing "ALL" mold vectors (note I said ALL and not some).....much less sunlight which only has a little bit of UV light in it.

In your particular situation, it appears that mold has already reached the cambium layer of your cutting. Your best coarse of action it to treat it like a cancer and cut that part off as I have suggested earlier. Continue rooting by whatever method you choose.

Rooters will find that the cleaning, storage, and rooting methods and procedures that I have written about are by far the easiest and least prone to molding of the current rooting methods going around. Mold PREVENTION by removing one or more of the three molding conditions is the key to success. I consistently achieve a high rooting success rate and do not have any problems with mold. Stay with a proven method and you too can achieve those same results.

Dan


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RE: Fighting mold ......still :-(

Thanks Dan,

I thought (ain't that a dangerous sounding statment)?

that I had followed your cleaning method to the "letter"

I guess I didn't.
I'm not near about giving up on this Hollier rooting project.

Thanks to all
stay tuned.
Cecil


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RE: Fighting mold ......still :-(

Celeste was the mother to Hollier. It is an excellent fig....don't give up the battle to save your cutting. They are sweet even during colder weather. That's one reason why it does well in Paully's climate.

Dan


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RE: Fighting mold ......still :-(

Dan, you are 100% right. If it works in my zone without green house help, it would be ideal in many other zones. Even Adriano had this variant in-ground. He told me this is a superb variant. Its productive & gave me my first production in year 2 with at least 20 figs. I started my plant via 3 cuttings from Prof.Bostock & all 3 rooted. Robust plant with good branching habits.


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RE: Fighting mold ......still :-(

Paully,

In my fig trials I am trying to identify the best cultivars for growing in my hot/humid zone 9 climate. What I am finding out is that those cultivars producing more than one crop in my yard where the second or even third crop ripens "sweet" good tasting figs even when the weather is cool........seem to do well in northern colder climates. I will be paying special attention to these fruiting characteristics of my trial figs this coming season.

Dan


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RE: Fighting mold ......still :-(

2 other variants that have done well here are Capelas & Slocan(Likely a Longue d'Aout). Both are large figs. Very nice tasting.


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RE: Fighting mold ......still :-(

Well the Dawn AB and 10% Clorox has not even slowed down the mold problem on these Hollier cuttings (treated them 3 times)
so I just tried a diluted peroxide mixture.

I don't have much hope for the cuttings now, but I will keep trying.

Cecil


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RE: Fighting mold ......still :-(

I don't blame you for trying the peroxide. But, as a chemist and an expert in chemical cleaning, I can tell you that peroxide is not as effective as the dual chemical cleaning treatment that you repeated three times. Once mold gets growing from the cambium layer of a cutting, only surgically removing it will stop it. Something allowed mold to reach the cambium layer......look for the cause in how these particular cuttings were handled, treated, and stored before rooting. Your problem was not caused by using a non-sterile rooting mix.

Also, that mold that you now see growing is using up a lot of the available energy reserves of those cuttings....so even if you now stop the mold, you have already lost significant energy reserves that would have otherwise gone into forming roots and leaves. So even if you somehow now manage to stop that mold, those cuttings will produce much weaker growth. That's why prevention techniques are so important.

Dan


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RE: Fighting mold ......still :-(

Dan,
I have another stupid question for ya?

How would I go about surgically removing the mole spores?

By scraping or what?

Cecil


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RE: Fighting mold ......still :-(

Cecil,

It is not just the mold spores that need removing.... it is usually a whole host of mold vectors (spores are just one agent) that must be removed. You remove them by cutting off any sections of the cutting that looks moldy or rotten. After cutting off a piece, look at the cut made on the cutting and see if it still looks moldy. If the cut looks rotten, moldy, or off color; then, you will need to cut lower. However you need to dip your snipper's blades into some 10% Clorox BEFORE you make your next cut.....this is very important.

Continue cutting the moldy looking stuff off until you finally reach nice clean green wood. BE SURE TO DIP YOUR SNIPPER in Clorox between each cut that you make on your cutting....you will infect the clean wood if you don't.

Afterwards, wash your snippers in some soapy tap water and apply a bit of oil (WD 40 is good) to them. (Any Clorox not removed from your snippers will cause them to rust.)

Good luck,

Dan


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RE: Fighting mold ......still :-(

Dan's advice about cleaning shears between cuttings is something vital at all times when cutting anything. You also want to clean between varieties, especially. For example, say you are trimming Negronne/VdB cuttings, which seem to be prone to FMV...then you go and cut some precious other cutting which has no FMV...you risk cross-contamination and infection of the other plant. I find that Soft Scrub with Clorox does a great job of cleaning shears without rusting problems.

Another side tip which is not so scientific. Go buy a box of Clorox Wipes. If you have some fuzz appearing, Clorox wipes are a superb tool for cleaning up mold spots on a cutting before it has chance to set in. Always check for light mold fuzz around cut sites, leaf scars and end caps.

As I told another member the other day by email - when you get cuttings in from other folks, you have no idea how long they've been stored in the fridge, or what they went through in transit. Always squeeze the wood from tip to end, looking for soft (bruised) and mushy (rotten) spots. Bruised spots will become rotten. Rotten spots will spread. Don't be afraid to cut off rotten spots totally, and be liberal with your cuts. Better to cut a little extra than to not get it all and need to cut your wood again later. Also, don't be afraid to THROW AWAY a cutting. I usually pay $1-$2 per cutting. I've had two different cuttings come in this year which went straight from the bag and into the garbage can. They were too far gone. It was like taking a buck or two and tossing in the garbage, but the reality is, if I didn't, I risked the other several dollars worth of cuttings I paid for, by possibly spreading the "funk" to them.

Sometimes a cutting just can't be helped, they're just "bad" sometimes. This is something you must come to accept before you start trying to root anything.


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RE: Fighting mold ......still :-(

Thanks Dan & Jason,

Luckily I have 3 more Hollier cuttings being sent to me!

I plan on doing your method Dan as soon as I receive them.
(no fidge for these guys)

Thanks goes to the Great member that was kind enough to send the cuttings to me (you know who ya are)

stay tuned. :-)
Cecil


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RE: Fighting mold ......still :-(

Most times I soak my newly arrived cuttings in anti bacterial soap for at least an hour. Infact I had some cuttings yesterday & had them soaking in anti bacterial soap water since last night. Fell asleep watching TV and lazy to clean by 11pm. I have had 2 batches of cuttings that kept on rotting last year --- one was the Improved Celeste & all cuttings died inspite of all efforts and the 2nd one was Lamperia where serious rot set in and I kept cutting away the rot and eventually rooted a 2" plus cutting which took off to at over 2 ft.


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RE: Fighting mold ......still :-(

Thanks Paully.

In the past I have only brushed the cuttings after dunking them in the Dawn AB soap, I will do like you said and let them soak for an hour........one of my Hollier cuttings is down to one node, after I cut the mold off, I laid it in the UPM almost horizontally.

Again thanks
Cecil


 
 

 

 


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