Site Banners forum→Banner for February 4, 2021 by lauriemorningglory

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Name: Laurie
southeast Nebraska (Zone 5b)
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lauriemorningglory
Feb 3, 2021 6:01 PM CST
Infectious Dots

Colorful rust diseases often lead to significant leaf browning. The host tree shown here was labelled as LaValle hawthorn. Many rusts require two hosts to complete their lifecycle. "Cedar-apple rust" and related rusts require juniper or eastern redcedar trees as an alternate host.

Thumb of 2020-11-22/lauriemorningglory/2f6cd8
Name: Baja
Baja California (Zone 11b)
Cactus and Succulents Seed Starter Foliage Fan Xeriscape Container Gardener Hummingbirder
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Baja_Costero
Feb 3, 2021 6:03 PM CST
Wow.... really striking colors, including some purple even. Thanks for the background info, I had no idea.
Northern NJ (Zone 6b)
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LorettaNJ
Feb 3, 2021 6:25 PM CST
Good teaching banner.
Name: Dirt
(Zone 5b)
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dirtdorphins
Feb 3, 2021 7:25 PM CST
Yikes!
but neato nonetheless Smiling
Name: Rj
Just S of the twin cities of M (Zone 4b)
Garden Ideas: Level 1 Plant Identifier Million Pollinator Garden Challenge
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crawgarden
Feb 3, 2021 7:47 PM CST
Interesting banner Laurie!
Prudence, indeed, will dictate that Governments long established should not be changed for light and transient causes; and accordingly all experience hath shewn, that mankind are more disposed to suffer, while evils are sufferable, than to right themselves by abolishing the forms to which they are accustomed.
Zone 5
Celebrating Gardening: 2015 Garden Ideas: Level 1
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Fleur569
Feb 3, 2021 9:10 PM CST
šŸ¦ a microbe banner šŸ¦ great learning banneršŸ¦ 
Name: Laurie
southeast Nebraska (Zone 5b)
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lauriemorningglory
Feb 3, 2021 9:36 PM CST
More educational pictures of this rust fungus. Note: the last picture may make some folks a little squeamish....


Here is the whole hawthorn leaf with the rust spots. Not sure if this is the image I used to make the banner.

Thumb of 2021-02-04/lauriemorningglory/8a889f


Next is the rust fungus as it appears on juniper. This is called a gall.

Thumb of 2021-02-04/lauriemorningglory/573e1e


Finally, in the spring when there is rainy weather, these galls sporulate and produce these orange gelatinous fingers Blinking which will produce the fungal spores that infect the apple, hawthorn, pear, or whatever the alternate host is.

Thumb of 2021-02-04/lauriemorningglory/290037

Name: Valerie
Ontario, Canada (Zone 4a)
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touchofsky
Feb 4, 2021 9:27 AM CST
I agree Very interesting and educational, Laurie.
Touch_of_sky on the LA
Name: Elizabeth
Ann Arbor, Michigan (Zone 6a)
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arctangent
Feb 4, 2021 10:58 AM CST
Super job grabbing our attention with a visually striking banner, and adding to our education with the additional photos. I managed to guess the leaf shown had some sort of disease, but that's as far as I got. I'd never seen the disease stage shown in the third of your photos, but junipers and apples and hawthorns are common enough that I should make a point of looking for it this spring.

Is there a forum on this site for talking about, and illustrating plant diseases like this? If not, there should be.
I tip my hat to you. Hurray! I tip my hat to you.
I post high resolution photos (nature, travel, and other subjects) on smugmug
https://arctangent.smugmug.com...
Name: Baja
Baja California (Zone 11b)
Cactus and Succulents Seed Starter Foliage Fan Xeriscape Container Gardener Hummingbirder
Native Plants and Wildflowers Garden Photography Region: Mexico Plant Identifier Forum moderator Plant Database Moderator
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Baja_Costero
Feb 4, 2021 11:13 AM CST
See these two pages:

https://garden.org/forums/view...

https://garden.org/learn/libra...

You can find all forums here:

https://garden.org/forums/
[Last edited by Baja_Costero - Feb 4, 2021 11:40 AM (+)]
Give a thumbs up | Quote | Post #2429710 (10)
Name: Laurie
southeast Nebraska (Zone 5b)
Irises Butterflies Bulbs Cat Lover
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lauriemorningglory
Feb 4, 2021 6:15 PM CST
Thank you, all for the likes, acorns, comments and links! Plant diseases can sometimes be quite interesting despite the fact that we fight with them in our quest for a beautiful and bountiful garden. Smiling
Name: Cal McGaugh
Escondido, California (Zone 10b)
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EscondidoCal
Feb 4, 2021 6:22 PM CST
My first reaction was like Dirt's....."Yikes!" Blinking

Rust is my nemesis, especially for my hollyhocks.
But I found that if I give them Bayer 4-in-One early
before it is visible, they get very green & buff, and
it prevents the rust.

Thanks, though for the all the info, pics, & links by Baja, et al. Thumbs up

Now I'm going to take a shower. Whistling

Learn & create something every day.
Our Duck Pond The thread "Pool to Natural Pond Conversion" in Ponds and Water Gardening forum
Name: Laurie
southeast Nebraska (Zone 5b)
Irises Butterflies Bulbs Cat Lover
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lauriemorningglory
Feb 4, 2021 6:48 PM CST
I gave up on hollyhocks because of the rust. Glare
Name: Cal McGaugh
Escondido, California (Zone 10b)
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EscondidoCal
Feb 4, 2021 7:56 PM CST
lauriemorningglory said:I gave up on hollyhocks because of the rust. Glare

Try Bayer's 4 n 1......I got it for roses, but it really works great on HH's. Thumbs up


Learn & create something every day.
Our Duck Pond The thread "Pool to Natural Pond Conversion" in Ponds and Water Gardening forum

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