Square Foot Gardening Forum
[table bgcolor=#000000 height=275][tr][td]
Powdery mildew!  :( Toplef10Powdery mildew!  :( 1zd3ho10

Hello Guest!
Welcome to the official Square Foot Gardening Forum.
There's lots to learn here by reading as a guest. However, if you become a member (it's free, ad free and spam-free) you'll have access to our large vermiculite databases, our seed exchange spreadsheets, Mel's Mix calculator, and many more members' pictures in the Gallery. Enjoy.

Powdery mildew!  :( I22gcj10Powdery mildew!  :( 14dhcg10

[/td][/tr][/table]

Join the forum, it's quick and easy

Square Foot Gardening Forum
[table bgcolor=#000000 height=275][tr][td]
Powdery mildew!  :( Toplef10Powdery mildew!  :( 1zd3ho10

Hello Guest!
Welcome to the official Square Foot Gardening Forum.
There's lots to learn here by reading as a guest. However, if you become a member (it's free, ad free and spam-free) you'll have access to our large vermiculite databases, our seed exchange spreadsheets, Mel's Mix calculator, and many more members' pictures in the Gallery. Enjoy.

Powdery mildew!  :( I22gcj10Powdery mildew!  :( 14dhcg10

[/td][/tr][/table]
Square Foot Gardening Forum
Would you like to react to this message? Create an account in a few clicks or log in to continue.
Search
 
 

Display results as :
 

 


Rechercher Advanced Search

Latest topics
» Starting Strawberries from Seed
by OhioGardener Today at 12:10 pm

» Soaking Seeds for Better Germination
by OhioGardener Today at 7:41 am

» What are you eating from your garden today?
by sanderson Today at 3:34 am

» How do I source Mels Mix for 190 cu ft????
by sanderson Yesterday at 10:09 pm

» Kiwi's SFG Adventure
by yolos Yesterday at 7:41 pm

» Ads are back
by KiwiSFGnewbie Yesterday at 2:32 pm

» Should I buy this compost tumbler??
by Soose Yesterday at 11:37 am

» Garden Tools
by Soose 2/3/2023, 6:07 pm

» Back In The Saddle I Suppose
by AtlantaMarie 2/3/2023, 5:15 am

» Happy Birthday!!
by AtlantaMarie 2/3/2023, 5:12 am

» Seed Exchange - January 2023
by sanderson 2/3/2023, 3:08 am

» Phosphate
by bigtoad 2/2/2023, 5:41 pm

» Organic compost without peat in Alberta
by OhioGardener 2/2/2023, 8:05 am

» worms and compost tumbler
by Soose 2/1/2023, 11:46 pm

» trying to Think Spring in cold Chicago
by sanderson 2/1/2023, 4:43 pm

» New Lifetime Compost Tumbler..
by sanderson 2/1/2023, 4:41 pm

» Aero Garden for starting seeds?
by OhioGardener 2/1/2023, 8:23 am

» Starbucks for coffee grounds!
by sanderson 1/30/2023, 1:37 am

» N&C Midwest: January & February 2023
by OhioGardener 1/29/2023, 7:33 pm

» Placing Box on Cement
by OhioGardener 1/29/2023, 2:57 pm

» How I compost using a Tumbler
by Soose 1/29/2023, 2:45 pm

» Garlic Chives in SFG?
by OhioGardener 1/29/2023, 8:56 am

» Microgreens Gardening
by sanderson 1/28/2023, 11:42 pm

» Johnson Su composting Bioreactor instructions for home, not the farm.
by has55 1/28/2023, 10:57 am

» homemade vermicomposting/Worm Casting Compost Sifters
by has55 1/28/2023, 10:45 am

» Famous Gardening Quotes
by OhioGardener 1/28/2023, 8:29 am

» The SFG Journey-Johnson Su Bioreactor for composting, No turning
by has55 1/28/2023, 12:09 am

» seed starting Mel's way
by plantoid 1/27/2023, 7:09 am

» Home Made Compost
by plantoid 1/27/2023, 6:18 am

» New but Old
by lovey 1/25/2023, 1:49 am

Google

Search SFG Forum

Powdery mildew! :(

+17
Triciasgarden
mollyhespra
CindiLou
ericam
RoOsTeR
cpl100
Dunkinjean
CapeCoddess
imtethered
FamilyGardening
walshevak
Pepper
Goosegirl
BackyardBirdGardner
pattipan
camprn
littlesapphire
21 posters

Page 1 of 3 1, 2, 3  Next

Go down

Powdery mildew!  :( Empty Powdery mildew! :(

Post  littlesapphire 8/10/2011, 10:04 am

Oh no! My squash, cucumbers and peas have powdery mildew! I wouldn't be so worried about it, except it just keeps raining! So I can't go out there and spray my neem oil on them just yet. The weather will be clear tomorrow, but I'm so worried about waiting.

Does anyone know off hand if neem oil washes away when it rains? On the one hand, I would assume it does, but on the other, it's technically oil so shouldn't it stick?

Oh, I'm so upset over the whole matter. I just want to do something to help my plants, but I can't Powdery mildew!  :( 671790
littlesapphire
littlesapphire

Female Posts : 826
Join date : 2010-04-08
Age : 38
Location : Jamestown, NY (Zone 5a)

http://www.sanorigardens.org

Back to top Go down

Powdery mildew!  :( Empty Re: Powdery mildew! :(

Post  camprn 8/10/2011, 10:15 am

I too am having issues with PM. I would suggest your first line of defense is to just go to the garden and remove all effected leaves and stems and trashing the litter. I put mine in the burn pile.

Info link 1

Info link 2

Info link 3

____________________________

43 years a gardener and going strong with SFG.
https://squarefoot.forumotion.com/t3574-the-end-of-july-7-weeks-until-frost

There are certain pursuits which, if not wholly poetic and true, do at least suggest a nobler and finer relation to nature than we know. The keeping of bees, for instance. ~ Henry David Thoreau

https://squarefoot.forumotion.com/t1306-other-gardening-books



Powdery mildew!  :( WxBanner?bannertype=wu_clean2day_cond&airportcode=KEEN&ForcedCity=Keene&ForcedState=NH&zipcode=03431&language=EN
camprn
camprn

Forum Moderator Certified SFG Teacher

Female Posts : 14169
Join date : 2010-03-06
Age : 60
Location : Keene, NH, USA ~ Zone 5a

https://squarefoot.forumotion.com/t3574-the-end-of-july-7-week

Back to top Go down

Powdery mildew!  :( Empty Re: Powdery mildew! :(

Post  pattipan 8/10/2011, 11:46 am

If it's just a few leaves, removing them is an option. However, when powdery mildew comes to my garden, it's usually on just about every squash and cucumber leaf, so I wouldn't have a leaf left if I trimmed off the effected ones! This July with the hot humid weather PM has been the worst.

I found this potassium bicarbonate product that worked to kill the PM: Greencure. I bought mine from amazon.com. Then I bought a cheap 1-gallon pump sprayer (makes it easier to get the underside of leaves). You could use a large spray bottle if you just have a few plants that need treatment.

There are other brands of potassium bicarbonate fungicides, or you can buy bags of the powder to mix your own. It looks just like baking soda, but it's more effective on PM. Greencure has a surficant (makes it stick to the leaves), so that's why I chose it.

Works for me.
pattipan
pattipan
pattipan

Female Posts : 808
Join date : 2010-03-04
Location : WV -- Zone 6a

https://squarefoot.forumotion.com/gallery/personal160.htm

Back to top Go down

Powdery mildew!  :( Empty Re: Powdery mildew! :(

Post  littlesapphire 8/10/2011, 1:35 pm

PM is the same way for me, Pattipan. When it comes, it grows on all the leaves of the plant. Right now it's just tiny little spots of it on every leaf of the plant. Neem has been very helpful to me in protecting and controling the PM, but I forgot to spray for a couple of weeks, and I got what I deserved.

The weather has cleared up a lot since earlier, but I don't like to spray the leaves at night or when the sun is fully on them, so I'll wait until tomorrow morning.

Camprn, thanks for the links! It was comforting to read that PM doesn't like the rain, so I didn't have so much to worry about.
littlesapphire
littlesapphire

Female Posts : 826
Join date : 2010-04-08
Age : 38
Location : Jamestown, NY (Zone 5a)

http://www.sanorigardens.org

Back to top Go down

Powdery mildew!  :( Empty Re: Powdery mildew! :(

Post  BackyardBirdGardner 8/10/2011, 1:42 pm

Any chance someone would take a picture of it and post it? I've never seen the stuff. Thanks. (Oh, and I didn't look around the forum. If I don't see a picture here, I'll do some searching later. No need to spoon feed me...lol.)
BackyardBirdGardner
BackyardBirdGardner

Male Posts : 2727
Join date : 2010-12-25
Age : 49
Location : St. Louis, MO

Back to top Go down

Powdery mildew!  :( Empty Re: Powdery mildew! :(

Post  camprn 8/10/2011, 1:47 pm

There are some photos at the links I posted.

____________________________

43 years a gardener and going strong with SFG.
https://squarefoot.forumotion.com/t3574-the-end-of-july-7-weeks-until-frost

There are certain pursuits which, if not wholly poetic and true, do at least suggest a nobler and finer relation to nature than we know. The keeping of bees, for instance. ~ Henry David Thoreau

https://squarefoot.forumotion.com/t1306-other-gardening-books



Powdery mildew!  :( WxBanner?bannertype=wu_clean2day_cond&airportcode=KEEN&ForcedCity=Keene&ForcedState=NH&zipcode=03431&language=EN
camprn
camprn

Forum Moderator Certified SFG Teacher

Female Posts : 14169
Join date : 2010-03-06
Age : 60
Location : Keene, NH, USA ~ Zone 5a

https://squarefoot.forumotion.com/t3574-the-end-of-july-7-week

Back to top Go down

Powdery mildew!  :( Empty Re: Powdery mildew! :(

Post  littlesapphire 8/10/2011, 2:04 pm

Too lazy to go out and take photos, lol! So I found a picture for you:

Powdery mildew!  :( IMG1441resizestamp

That's how it starts in my garden. At the moment, each leaf has one or two of those little dots of white stuff on it SadPowdery mildew!  :( DtipIconHover
littlesapphire
littlesapphire

Female Posts : 826
Join date : 2010-04-08
Age : 38
Location : Jamestown, NY (Zone 5a)

http://www.sanorigardens.org

Back to top Go down

Powdery mildew!  :( Empty Re: Powdery mildew! :(

Post  littlesapphire 8/13/2011, 2:25 pm

Great news! Finally got out there to spray with neem on Thursday, and the PM is already gone! That stuff is almost like magic when it comes to PM.
littlesapphire
littlesapphire

Female Posts : 826
Join date : 2010-04-08
Age : 38
Location : Jamestown, NY (Zone 5a)

http://www.sanorigardens.org

Back to top Go down

Powdery mildew!  :( Empty Re: Powdery mildew! :(

Post  camprn 8/13/2011, 2:37 pm

littlesapphire wrote:Great news! Finally got out there to spray with neem on Thursday, and the PM is already gone! That stuff is almost like magic when it comes to PM.
The change in the weather has helped here as well. I am glad you are having success with the neem treatment!!

____________________________

43 years a gardener and going strong with SFG.
https://squarefoot.forumotion.com/t3574-the-end-of-july-7-weeks-until-frost

There are certain pursuits which, if not wholly poetic and true, do at least suggest a nobler and finer relation to nature than we know. The keeping of bees, for instance. ~ Henry David Thoreau

https://squarefoot.forumotion.com/t1306-other-gardening-books



Powdery mildew!  :( WxBanner?bannertype=wu_clean2day_cond&airportcode=KEEN&ForcedCity=Keene&ForcedState=NH&zipcode=03431&language=EN
camprn
camprn

Forum Moderator Certified SFG Teacher

Female Posts : 14169
Join date : 2010-03-06
Age : 60
Location : Keene, NH, USA ~ Zone 5a

https://squarefoot.forumotion.com/t3574-the-end-of-july-7-week

Back to top Go down

Powdery mildew!  :( Empty Re: Powdery mildew! :(

Post  Goosegirl 8/13/2011, 2:41 pm

littlesapphire wrote:Great news! Finally got out there to spray with neem on Thursday, and the PM is already gone! That stuff is almost like magic when it comes to PM.



Thanks for the reminder - I need to get out there with my Tea Tree Oil mix that I am trying on my Septoria Leaf Spot. TTO is a good anti-fungal (and anti-bacterial), so since I already have a soapy disinfectant mix made up for bathroom disinfection...

GG
Goosegirl
Goosegirl

Female Posts : 3435
Join date : 2011-02-16
Age : 58
Location : Zone 4A - NE SD

Back to top Go down

Powdery mildew!  :( Empty Powery mildew

Post  Pepper 5/15/2012, 4:09 pm

If I am not badly mistaken this is PMPowdery mildew!  :( P5153010

another view Powdery mildew!  :( P5153011

This is in my squash and cocumber bed. Do I need to pluck and destroy or just use Neem??

Better yet HELP WHAT SHOULD I DO????? Powdery mildew!  :( 63597 Powdery mildew!  :( 471599 Powdery mildew!  :( 671790
Pepper
Pepper

Male Posts : 564
Join date : 2012-03-04
Location : Columbus, Ga

Back to top Go down

Powdery mildew!  :( Empty Re: Powdery mildew! :(

Post  littlesapphire 5/15/2012, 4:14 pm

Those are some pretty heavily affected leaves. I would say trim off the worst of the leaves (don't worry, more will grow in their place!) and spray the rest with neem if you have it. Make sure to get the entire leaf, top and bottom, and the leaves that don't appear to be affected as well. Good luck!
littlesapphire
littlesapphire

Female Posts : 826
Join date : 2010-04-08
Age : 38
Location : Jamestown, NY (Zone 5a)

http://www.sanorigardens.org

Back to top Go down

Powdery mildew!  :( Empty PM

Post  Pepper 5/15/2012, 4:18 pm

Thanks JuliePowdery mildew!  :( 109486 this makes me Powdery mildew!  :( 671790 at PM
Pepper
Pepper

Male Posts : 564
Join date : 2012-03-04
Location : Columbus, Ga

Back to top Go down

Powdery mildew!  :( Empty Re: Powdery mildew! :(

Post  littlesapphire 5/15/2012, 4:21 pm

I know what you mean! PM gets me every single year, and the moment I forget to spray neem, it attacks full force. I try to spray my plants once a week. Although I've heard neem is best used as a way to get rid of PM instead of preventing it, it seems to work pretty well for me. Good luck in your garden and let us know how it goes Smile
littlesapphire
littlesapphire

Female Posts : 826
Join date : 2010-04-08
Age : 38
Location : Jamestown, NY (Zone 5a)

http://www.sanorigardens.org

Back to top Go down

Powdery mildew!  :( Empty Re: Powdery mildew! :(

Post  camprn 5/15/2012, 4:27 pm

I had some good results using a baking soda foliar spray last season, particularly on the cucumber plants. I sprayed tops and bottoms of leaves and even though we had very humid weather the spray mostly kept that mildew in check enough for the plants to maintain their health and produce fruit.

____________________________

43 years a gardener and going strong with SFG.
https://squarefoot.forumotion.com/t3574-the-end-of-july-7-weeks-until-frost

There are certain pursuits which, if not wholly poetic and true, do at least suggest a nobler and finer relation to nature than we know. The keeping of bees, for instance. ~ Henry David Thoreau

https://squarefoot.forumotion.com/t1306-other-gardening-books



Powdery mildew!  :( WxBanner?bannertype=wu_clean2day_cond&airportcode=KEEN&ForcedCity=Keene&ForcedState=NH&zipcode=03431&language=EN
camprn
camprn

Forum Moderator Certified SFG Teacher

Female Posts : 14169
Join date : 2010-03-06
Age : 60
Location : Keene, NH, USA ~ Zone 5a

https://squarefoot.forumotion.com/t3574-the-end-of-july-7-week

Back to top Go down

Powdery mildew!  :( Empty Re: Powdery mildew! :(

Post  walshevak 5/15/2012, 8:27 pm

Refresh my memory. What is the proportion of baking soda to water.

Kay

____________________________

A WEED IS A FLOWER GROWING IN THE WRONG PLACE
Elizabeth City, NC
Find more about Weather in Elizabeth City, NC
Click for weather forecast
avatar
walshevak

Certified SFG Instructor

Female Posts : 4374
Join date : 2010-10-17
Age : 80
Location : wilmington, nc zone 8

Back to top Go down

Powdery mildew!  :( Empty Re: Powdery mildew! :(

Post  camprn 5/15/2012, 8:44 pm

walshevak wrote:Refresh my memory. What is the proportion of baking soda to water.

Kay
I think I used this recipe with a heaping tablespoon of baking soda. I will use it again.
http://organicgardening.about.com/od/diseases/qt/bakingsodaspray.htm

____________________________

43 years a gardener and going strong with SFG.
https://squarefoot.forumotion.com/t3574-the-end-of-july-7-weeks-until-frost

There are certain pursuits which, if not wholly poetic and true, do at least suggest a nobler and finer relation to nature than we know. The keeping of bees, for instance. ~ Henry David Thoreau

https://squarefoot.forumotion.com/t1306-other-gardening-books



Powdery mildew!  :( WxBanner?bannertype=wu_clean2day_cond&airportcode=KEEN&ForcedCity=Keene&ForcedState=NH&zipcode=03431&language=EN
camprn
camprn

Forum Moderator Certified SFG Teacher

Female Posts : 14169
Join date : 2010-03-06
Age : 60
Location : Keene, NH, USA ~ Zone 5a

https://squarefoot.forumotion.com/t3574-the-end-of-july-7-week

Back to top Go down

Powdery mildew!  :( Empty PM

Post  Pepper 5/16/2012, 12:01 am

Thank you all for your helpPowdery mildew!  :( 109486 .

The wife picked me up some neem before I saw the baking soda. Which would be better to use? Should I remove the affected leaves and stems before use?



Mike
Pepper
Pepper

Male Posts : 564
Join date : 2012-03-04
Location : Columbus, Ga

Back to top Go down

Powdery mildew!  :( Empty Re: Powdery mildew! :(

Post  littlesapphire 5/16/2012, 9:07 am

Pepper, I've read in several places that the baking soda mix is best for preventing PM, whereas the neem is best for getting rid of PM. So if you already have it, I would say use the neem until it's gone, then try the baking soda mix.
littlesapphire
littlesapphire

Female Posts : 826
Join date : 2010-04-08
Age : 38
Location : Jamestown, NY (Zone 5a)

http://www.sanorigardens.org

Back to top Go down

Powdery mildew!  :( Empty PM

Post  Pepper 5/18/2012, 5:03 pm

well the neem seems to have done the trick. I did butcher the one squash, better it than the whole bed.
Pepper
Pepper

Male Posts : 564
Join date : 2012-03-04
Location : Columbus, Ga

Back to top Go down

Powdery mildew!  :( Empty Re: Powdery mildew! :(

Post  littlesapphire 5/18/2012, 9:34 pm

Glad to hear it, Pepper! I know it's never any fun to cut leaves off, but they'll grow back in no time Smile Remember to keep applying the neem. I usually do it once a week.
littlesapphire
littlesapphire

Female Posts : 826
Join date : 2010-04-08
Age : 38
Location : Jamestown, NY (Zone 5a)

http://www.sanorigardens.org

Back to top Go down

Powdery mildew!  :( Empty Re: Powdery mildew! :(

Post  FamilyGardening 6/4/2012, 7:14 pm

we are thinking ahead here.....we always get PM on squash, pumpkins and cucumbers.....

wondering if neem is still the best at getting rid of PM and the soda is the best for preventing the PM?

to prevent when do you start to apply the soda? and how often and does it effect the soil at all?....meaning....can you put to much on?

thanks

hugs

rose
FamilyGardening
FamilyGardening

Female Posts : 2424
Join date : 2011-05-10
Location : Western WA

Back to top Go down

Powdery mildew!  :( Empty Re: Powdery mildew! :(

Post  camprn 6/4/2012, 7:26 pm

I have used it on my plants at the first sign of mildew and it really slows it down a lot, reapplication is required if it remains terribly humid.

____________________________

43 years a gardener and going strong with SFG.
https://squarefoot.forumotion.com/t3574-the-end-of-july-7-weeks-until-frost

There are certain pursuits which, if not wholly poetic and true, do at least suggest a nobler and finer relation to nature than we know. The keeping of bees, for instance. ~ Henry David Thoreau

https://squarefoot.forumotion.com/t1306-other-gardening-books



Powdery mildew!  :( WxBanner?bannertype=wu_clean2day_cond&airportcode=KEEN&ForcedCity=Keene&ForcedState=NH&zipcode=03431&language=EN
camprn
camprn

Forum Moderator Certified SFG Teacher

Female Posts : 14169
Join date : 2010-03-06
Age : 60
Location : Keene, NH, USA ~ Zone 5a

https://squarefoot.forumotion.com/t3574-the-end-of-july-7-week

Back to top Go down

Powdery mildew!  :( Empty Re: Powdery mildew! :(

Post  FamilyGardening 6/4/2012, 7:52 pm

camprn wrote:I have used it on my plants at the first sign of mildew and it really slows it down a lot, reapplication is required if it remains terribly humid.

neem? or baking soda?

thanks Very Happy

hugs

rose
FamilyGardening
FamilyGardening

Female Posts : 2424
Join date : 2011-05-10
Location : Western WA

Back to top Go down

Powdery mildew!  :( Empty Re: Powdery mildew! :(

Post  camprn 6/4/2012, 7:55 pm

FamilyGardening wrote:
camprn wrote:I have used it on my plants at the first sign of mildew and it really slows it down a lot, reapplication is required if it remains terribly humid.

neem? or baking soda?

thanks Very Happy

hugs

rose
the baking soda spray, it works pretty well and the price is right Wink

____________________________

43 years a gardener and going strong with SFG.
https://squarefoot.forumotion.com/t3574-the-end-of-july-7-weeks-until-frost

There are certain pursuits which, if not wholly poetic and true, do at least suggest a nobler and finer relation to nature than we know. The keeping of bees, for instance. ~ Henry David Thoreau

https://squarefoot.forumotion.com/t1306-other-gardening-books



Powdery mildew!  :( WxBanner?bannertype=wu_clean2day_cond&airportcode=KEEN&ForcedCity=Keene&ForcedState=NH&zipcode=03431&language=EN
camprn
camprn

Forum Moderator Certified SFG Teacher

Female Posts : 14169
Join date : 2010-03-06
Age : 60
Location : Keene, NH, USA ~ Zone 5a

https://squarefoot.forumotion.com/t3574-the-end-of-july-7-week

Back to top Go down

Powdery mildew!  :( Empty Re: Powdery mildew! :(

Post  Sponsored content


Sponsored content


Back to top Go down

Page 1 of 3 1, 2, 3  Next

Back to top

- Similar topics

 
Permissions in this forum:
You cannot reply to topics in this forum