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Sep 17, 2014 2:43 PM CST
Plants Admin Emeritus
Name: Evan
Pioneer Valley south, MA, USA (Zone 6a)
Charter ATP Member Aroids Irises I was one of the first 300 contributors to the plant database! Tropicals Vermiculture
Foliage Fan Bulbs Hummingbirder Lover of wildlife (Black bear badge) Composter Plant Identifier
While searching for potential garden additions of Pulmonaria and Tall Garden Phlox this past year I found many breeders claiming powdery mildew resistance for their plants. An internet search for "Powdery Mildew Resistance" yields a variety of results for studies on Phlox, Pulmonaria, Pumpkins and Squash, etc. While most studies report varying degrees of resistance to Powdery Mildew (excellent, fair, poor, etc.) I think a simple check box in our database, as follows, could be helpful. What do you all think?

Resistances
-Powdery Mildew

http://www.ces.ncsu.edu/fletch...
http://www.chicagobotanic.org/...
http://extension.unh.edu/resou...
http://hortsci.ashspublication...
https://www.chicagobotanic.org...
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Sep 17, 2014 3:04 PM CST
Name: Deb
Planet Earth (Zone 8b)
Region: Pacific Northwest Million Pollinator Garden Challenge Garden Ideas: Master Level
I would find that useful for lots of plants. I hate that ugly gray look in late summer and would certainly place powdery mildew resistance high on my criteria list for squash, monarda, etc.
I want to live in a world where the chicken can cross the road without its motives being questioned.
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Sep 17, 2014 4:56 PM CST
Name: Ann ~Heat zn 9, Sunset
North Fl. (Zone 8b)
Garden Sages Region: Ukraine Native Plants and Wildflowers Xeriscape Organic Gardener I was one of the first 300 contributors to the plant database!
Garden Ideas: Master Level Butterflies Charter ATP Member Plant Identifier Million Pollinator Garden Challenge Dog Lover
I like this idea! This would also apply to certain Crepe Myrtle cultivars. Let's do it! Thumbs up
I am a strong believer in the simple fact is that what matters in this life is how we treat others. I think that's what living is all about. Not what I've done in my life but how I've treated others. ~~ Sharon Brown
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Sep 17, 2014 4:58 PM CST
Name: Lin Vosbury
Sebastian, Florida (Zone 10a)

Region: United States of America Region: Ukraine Region: Florida Charter ATP Member I was one of the first 300 contributors to the plant database! Million Pollinator Garden Challenge
Birds Butterflies Bee Lover Hummingbirder Container Gardener Houseplants
Thumbs up I like this idea too!
~ I'm an old gal who still loves playing in the dirt!
~ Playing in the dirt is my therapy ... and I'm in therapy a lot!


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Sep 17, 2014 5:54 PM CST
Garden.org Admin
Name: Dave Whitinger
Grapevine, Texas (Zone 8a)
Region: Texas Garden Research Contributor Million Pollinator Garden Challenge Charter ATP Member I was one of the first 300 contributors to the plant database! Garden Ideas: Master Level
Region: Ukraine Garden Sages Plant Identifier Avid Green Pages Reviewer Vermiculture The WITWIT Badge
Good call. It's added! Thumbs up
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Sep 17, 2014 6:06 PM CST
Name: Ann ~Heat zn 9, Sunset
North Fl. (Zone 8b)
Garden Sages Region: Ukraine Native Plants and Wildflowers Xeriscape Organic Gardener I was one of the first 300 contributors to the plant database!
Garden Ideas: Master Level Butterflies Charter ATP Member Plant Identifier Million Pollinator Garden Challenge Dog Lover
Thank you Evan for suggesting it & thank you Dave for implementing it.
I am a strong believer in the simple fact is that what matters in this life is how we treat others. I think that's what living is all about. Not what I've done in my life but how I've treated others. ~~ Sharon Brown
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Sep 17, 2014 6:21 PM CST
Plants Admin Emeritus
Name: Evan
Pioneer Valley south, MA, USA (Zone 6a)
Charter ATP Member Aroids Irises I was one of the first 300 contributors to the plant database! Tropicals Vermiculture
Foliage Fan Bulbs Hummingbirder Lover of wildlife (Black bear badge) Composter Plant Identifier
Thanks Dave.
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Sep 17, 2014 7:37 PM CST
Garden.org Admin
Name: Dave Whitinger
Grapevine, Texas (Zone 8a)
Region: Texas Garden Research Contributor Million Pollinator Garden Challenge Charter ATP Member I was one of the first 300 contributors to the plant database! Garden Ideas: Master Level
Region: Ukraine Garden Sages Plant Identifier Avid Green Pages Reviewer Vermiculture The WITWIT Badge
I tip my hat to you. Thanks Evan!
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Sep 17, 2014 7:48 PM CST
Plants Admin Emeritus
Name: Evan
Pioneer Valley south, MA, USA (Zone 6a)
Charter ATP Member Aroids Irises I was one of the first 300 contributors to the plant database! Tropicals Vermiculture
Foliage Fan Bulbs Hummingbirder Lover of wildlife (Black bear badge) Composter Plant Identifier
Thumbs up Thumbs up
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Sep 21, 2014 9:46 PM CST
Name: Sandy B.
Ford River, Michigan UP (Zone 4b)
(Zone 4b-maybe 5a)
Charter ATP Member Bee Lover Butterflies Birds I was one of the first 300 contributors to the plant database! Million Pollinator Garden Challenge
Seed Starter Vegetable Grower Greenhouse Region: United States of America Region: Michigan Enjoys or suffers cold winters
what does it actually mean if a plant is "mildew resistant" ? Does it tend to not GET mildewed, or does it just not succumb to the mildew?
“Think occasionally of the suffering of which you spare yourself the sight." ~ Albert Schweitzer
C/F temp conversion
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Sep 21, 2014 11:06 PM CST
Plants Admin
Name: Zuzu
Northern California (Zone 9a)
Region: Ukraine Charter ATP Member Region: California Cat Lover Roses Clematis
Irises Celebrating Gardening: 2015 Plant Identifier Garden Sages Plant Database Moderator Garden Ideas: Master Level
I would suppose it's the former because the plants I've seen with powdery mildew may have an unsightly appearance for a while, but they don't seem to suffer lasting damage. My experience is mainly with roses, however, so I'm not sure of the effects powdery mildew has on other plants.
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Sep 22, 2014 7:46 AM CST
Name: Sandy B.
Ford River, Michigan UP (Zone 4b)
(Zone 4b-maybe 5a)
Charter ATP Member Bee Lover Butterflies Birds I was one of the first 300 contributors to the plant database! Million Pollinator Garden Challenge
Seed Starter Vegetable Grower Greenhouse Region: United States of America Region: Michigan Enjoys or suffers cold winters
Thanks, Zuzu -- my main concern is for squash and cucumber plants; I did find an article from the Univ. of New Hampshire extension service at this site http://extension.unh.edu/resou... -- in part, it states:

"All pumpkins and squash will develop powdery mildew symptoms if weather conditions favor the fungus.
Resistant or tolerant varieties develop symptoms more slowly and maintain leaf coverage later in the
season."

They also list some varieties of pumpkin and squash that are resistant.

Interesting! Thanks, Evan, for bring this up Smiling
“Think occasionally of the suffering of which you spare yourself the sight." ~ Albert Schweitzer
C/F temp conversion
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Sep 22, 2014 8:33 AM CST
Plants Admin Emeritus
Name: Evan
Pioneer Valley south, MA, USA (Zone 6a)
Charter ATP Member Aroids Irises I was one of the first 300 contributors to the plant database! Tropicals Vermiculture
Foliage Fan Bulbs Hummingbirder Lover of wildlife (Black bear badge) Composter Plant Identifier
I think the former as well. For some food crops low resistance can result in lower yields or damaged fruit. Per UC IPM Online
...Severely infected plants may have reduced yields, shortened production times, and fruit that has little flavor.

http://www.ipm.ucdavis.edu/QT/...

Anecdotally my Lungwort (Pulmonaria saccharata 'Milky Way') plants, which have low or no Mildew resistance, have struggled for several years. Bethlehem Sage (Pulmonaria 'Spilled Milk') , with good mildew resistance, have multiplied well.
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Jul 4, 2015 2:29 PM CST
Surprisingly GREEN Pittsburgh (Zone 6a)
Rabbit Keeper Bee Lover Cat Lover Lover of wildlife (Black bear badge) Butterflies Hummingbirder
Dog Lover Birds Plant and/or Seed Trader Bulbs Echinacea Irises
dave said:Good call. It's added! Thumbs up


@dave - can I search for plants resistant to powdery mildew?
if so, how?
SHOW ME YOUR CRITTERS! I have a critter page over at Cubits. http://cubits.org/crittergarde...
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Jul 4, 2015 4:10 PM CST
Garden.org Admin
Name: Dave Whitinger
Grapevine, Texas (Zone 8a)
Region: Texas Garden Research Contributor Million Pollinator Garden Challenge Charter ATP Member I was one of the first 300 contributors to the plant database! Garden Ideas: Master Level
Region: Ukraine Garden Sages Plant Identifier Avid Green Pages Reviewer Vermiculture The WITWIT Badge
Yes through the "Search by type" engine.

Go to the plants database homepage, then click on "Search by type" in the lefthand bar. Then you'll see Powdery Mildew as an option under Resistances.
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Jul 4, 2015 4:43 PM CST
Surprisingly GREEN Pittsburgh (Zone 6a)
Rabbit Keeper Bee Lover Cat Lover Lover of wildlife (Black bear badge) Butterflies Hummingbirder
Dog Lover Birds Plant and/or Seed Trader Bulbs Echinacea Irises
Thank you!
SHOW ME YOUR CRITTERS! I have a critter page over at Cubits. http://cubits.org/crittergarde...
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Jul 4, 2015 5:37 PM CST
Garden.org Admin
Name: Dave Whitinger
Grapevine, Texas (Zone 8a)
Region: Texas Garden Research Contributor Million Pollinator Garden Challenge Charter ATP Member I was one of the first 300 contributors to the plant database! Garden Ideas: Master Level
Region: Ukraine Garden Sages Plant Identifier Avid Green Pages Reviewer Vermiculture The WITWIT Badge
I tip my hat to you.
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  • Started by: eclayne
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