Cactus and Tender Succulents forum: Help - what is wrong with my Agave?

Views: 3015, Replies: 11 » Jump to the end
Name: Hetty
Sunny Naples, Florida (Zone 10a)
Plumerias Photo Contest Winner: 2015 Charter ATP Member I was one of the first 300 contributors to the plant database! Garden Ideas: Master Level Plant Database Moderator
Forum moderator Region: Florida Cat Lover Garden Sages Cactus and Succulents Tropicals
Image
Dutchlady1
Feb 25, 2012 9:48 AM CST
I have never seen this before. A month ago I bought this as a stunning, very healthy looking plant. Now it is getting these gray spots. Is it a fungus? Can I do anything about it?
This is Agave 'Joe Hoak' and dear to my heart.


Thumb of 2012-02-25/Dutchlady1/4cbec8
Name: Michele Roth
N.E. Indiana - Zone 5b
I'm always on my way out the door..
I was one of the first 300 contributors to the plant database! Forum moderator Garden Sages Garden Ideas: Master Level Dog Lover Cottage Gardener
Native Plants and Wildflowers Plant Identifier Organic Gardener Keeps Horses Hummingbirder Hosted a Not-A-Raffle-Raffle
Image
chelle
Feb 25, 2012 11:15 AM CST
I'm not experienced with these plants, Hetty, but my guess would be a blight or other fungal disease. I noticed that there are water droplets on the leaves...is there any way to help the leaves stay drier to retard the spread?

I don't use fungicides, so I can't help with types or applications to use, sorry.

If it were my plant, I'd probably quarantine it, if possible, and then cut away the infected leaves, dipping shears or knife in a disinfecting (10% bleach and water) solution after each cut and discard in the household trash. Then attempt to keep the leaves as dry as possible, while allowing the plant to have as much direct sun as can be had.

Hopefully, someone with more experience will chime in soon, but I wouldn't wait too long to contain it, especially if you have others of this type of plant.

Have you noticed any bugs present?
Cottage Gardening

Newest Interest: Rock Gardens


Name: Hetty
Sunny Naples, Florida (Zone 10a)
Plumerias Photo Contest Winner: 2015 Charter ATP Member I was one of the first 300 contributors to the plant database! Garden Ideas: Master Level Plant Database Moderator
Forum moderator Region: Florida Cat Lover Garden Sages Cactus and Succulents Tropicals
Image
Dutchlady1
Feb 25, 2012 11:31 AM CST
Thanks. No bugs, no.
Name: Alan
Chandler, AZ; 85225 (Zone 9b)
Sunset Zone 13
Charter ATP Member Region: Southwest Gardening Organic Gardener Native Plants and Wildflowers Cottage Gardener I was one of the first 300 contributors to the plant database!
Plumerias Plant and/or Seed Trader Lover of wildlife (Black bear badge) Butterflies Bulbs Container Gardener
GardenGuyAZ
Feb 25, 2012 11:47 AM CST
My guess is either sun burn or over-watering. I had an Americana that got sunburnt like that,

























Name: Alan
Chandler, AZ; 85225 (Zone 9b)
Sunset Zone 13
Charter ATP Member Region: Southwest Gardening Organic Gardener Native Plants and Wildflowers Cottage Gardener I was one of the first 300 contributors to the plant database!
Plumerias Plant and/or Seed Trader Lover of wildlife (Black bear badge) Butterflies Bulbs Container Gardener
GardenGuyAZ
Feb 25, 2012 11:57 AM CST
See the gray/black spots forming on this sunburnt agave. And yours being variegated like it is, is probably going to be much more susceptible to full sun.

http://www.thegardenforums.org/viewtopic.php?f=10&t=23001

























[Last edited by GardenGuyAZ - Feb 25, 2012 12:12 PM (+)]
Give a thumbs up | Quote | Post #219606 (5)
Name: Carole
Clarksville, TN (Zone 6b)
Cherish today
Charter ATP Member Garden Sages Plant Identifier I was one of the first 300 contributors to the plant database! I helped plan and beta test the plant database. I helped beta test the Garden Planting Calendar
Garden Ideas: Master Level Celebrating Gardening: 2015 Cat Lover Avid Green Pages Reviewer Lover of wildlife (Raccoon badge) Birds
Image
SongofJoy
Feb 25, 2012 12:44 PM CST
Over-watering will do that as well. I was told the cells cannot uptake the water fast enough and it causes the cells to burst and make those spots. I have an agave that looks similar but when I put it where it doesn't get as much water, the new growth is all fine.

The best and most beautiful things in the world cannot be seen or even touched -- they must be felt with the heart. ~ Helen Keller
[Last edited by SongofJoy - Feb 25, 2012 4:21 PM (+)]
Give a thumbs up | Quote | Post #219630 (6)
Name: Carole
Clarksville, TN (Zone 6b)
Cherish today
Charter ATP Member Garden Sages Plant Identifier I was one of the first 300 contributors to the plant database! I helped plan and beta test the plant database. I helped beta test the Garden Planting Calendar
Garden Ideas: Master Level Celebrating Gardening: 2015 Cat Lover Avid Green Pages Reviewer Lover of wildlife (Raccoon badge) Birds
Image
SongofJoy
Feb 25, 2012 12:49 PM CST
I'm not saying that's what's wrong with your plant, Hetty. It could be a fungal disease or ? ... many things look similar. Just reporting on the situation with my agave and what "cured" it.

The best and most beautiful things in the world cannot be seen or even touched -- they must be felt with the heart. ~ Helen Keller
Name: Hetty
Sunny Naples, Florida (Zone 10a)
Plumerias Photo Contest Winner: 2015 Charter ATP Member I was one of the first 300 contributors to the plant database! Garden Ideas: Master Level Plant Database Moderator
Forum moderator Region: Florida Cat Lover Garden Sages Cactus and Succulents Tropicals
Image
Dutchlady1
Feb 25, 2012 4:10 PM CST
I will stop watering it. I checked with the grower and they told me it had been in full sun, so I know it is not sunburn.
Name: Carole
Clarksville, TN (Zone 6b)
Cherish today
Charter ATP Member Garden Sages Plant Identifier I was one of the first 300 contributors to the plant database! I helped plan and beta test the plant database. I helped beta test the Garden Planting Calendar
Garden Ideas: Master Level Celebrating Gardening: 2015 Cat Lover Avid Green Pages Reviewer Lover of wildlife (Raccoon badge) Birds
Image
SongofJoy
Feb 25, 2012 4:28 PM CST
Frost damage is another possibility, maybe.
The best and most beautiful things in the world cannot be seen or even touched -- they must be felt with the heart. ~ Helen Keller
Name: Hetty
Sunny Naples, Florida (Zone 10a)
Plumerias Photo Contest Winner: 2015 Charter ATP Member I was one of the first 300 contributors to the plant database! Garden Ideas: Master Level Plant Database Moderator
Forum moderator Region: Florida Cat Lover Garden Sages Cactus and Succulents Tropicals
Image
Dutchlady1
Feb 25, 2012 4:54 PM CST
We have not had any.
Name: Carole
Clarksville, TN (Zone 6b)
Cherish today
Charter ATP Member Garden Sages Plant Identifier I was one of the first 300 contributors to the plant database! I helped plan and beta test the plant database. I helped beta test the Garden Planting Calendar
Garden Ideas: Master Level Celebrating Gardening: 2015 Cat Lover Avid Green Pages Reviewer Lover of wildlife (Raccoon badge) Birds
Image
SongofJoy
Feb 25, 2012 5:00 PM CST
That probably rules that out then. Looking more and more like the too wet thing. Or?
The best and most beautiful things in the world cannot be seen or even touched -- they must be felt with the heart. ~ Helen Keller
Name: 'CareBear'

Sempervivums Hostas Dog Lover Irises Amaryllis Cactus and Succulents
Region: Pennsylvania
Image
Stush2019
Mar 6, 2012 11:35 AM CST
Hetty,
I'm with Al on this one. Looks like a burn. To be safe, keep it away from all the other collection. See what develops. I would not cut out the damage, you may make more in the process. Also I would maybe keep a tent or umbrella over it during the hottest parts of the day. Water plus heat is ok. It's those cold spells with water that rot sets in. Also remember a little cinnamon sprinkled over it to keep the rot/fungus in hand. I am no expert, it is only my best guess. Keep us informed on this. I would like to know what comes of this. I too love this agave. Good luck.
Stush

« Garden.org Homepage
« Back to the top
« Forums List
« Cactus and Tender Succulents forum
You must first create a username and login before you can reply to this thread.

Today's site banner is by dirtdorphins and is called "Lilium 'Pink Perfection'"