Square Foot Gardening Forum

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.


Search
 
 

Display results as :
 

 


Rechercher Advanced Search

Latest topics
» SFG Adventure of a first time gardener in ND
by sanderson Today at 1:58 am

» Second Year SFG in Canada
by sanderson Today at 1:56 am

» CANADIAN REGION: What are you doing in September 2016
by sanderson Today at 1:52 am

» October: What to plant in Northern California and Central Valley areas
by sanderson Today at 1:46 am

» Mid-South: October 2016
by sanderson Today at 1:36 am

» Rotten Rats in my garden!
by sanderson Today at 1:26 am

» New Table Tops
by sanderson Today at 1:11 am

» What are you eating from your garden today?
by donnainzone5 Yesterday at 8:45 pm

» Now What do I do?
by donnainzone5 Yesterday at 8:38 pm

» Northern California & Coastal Valleys - What are you doing this month?
by sanderson Yesterday at 8:12 pm

» Senseless Banter...
by llama momma Yesterday at 7:58 pm

» homemade ketchup
by llama momma Yesterday at 7:43 pm

» parsnips in square foot garden?
by Scorpio Rising Yesterday at 7:08 pm

» N&C Midwest: September 2016
by Scorpio Rising Yesterday at 6:21 pm

» Newbie composting questions
by sanderson Yesterday at 4:03 pm

» compost thermometer
by trolleydriver Yesterday at 9:23 am

» The Research Journey:free-The Gardener’s Guide TO PERFECT GARDEN SOIL
by jimmy cee Yesterday at 8:48 am

» Plantoid' s going into hospital ....
by plantoid Yesterday at 6:22 am

» Hello from San Antonio, Tx.
by sanderson Yesterday at 12:53 am

» 17 Everyday Things You've Been Doing Wrong
by has55 9/29/2016, 11:28 pm

» What's a good type of lettuce to try for some one who doesn't like lettuce?
by CapeCoddess 9/29/2016, 11:59 am

» In between
by Scorpio Rising 9/28/2016, 8:33 pm

» Tomato Mystery Mix
by sanderson 9/28/2016, 11:26 am

» Easy and Fabulous Crockpot Marinara
by trolleydriver 9/28/2016, 11:03 am

» newbeone
by Cajun Cappy 9/28/2016, 8:59 am

» The SFG Journey-Cover crops
by jimmy cee 9/27/2016, 9:45 pm

» Oh no! My hibiscus moscheutos plant has some roots exposed!
by RJARPCGP 9/27/2016, 9:37 pm

» Tryst with my first DIY SFG
by Mimi2 9/27/2016, 8:12 pm

» New England September 2016
by sanderson 9/27/2016, 7:50 pm

» Soil Blocks: Tutorial In Photos
by sanderson 9/27/2016, 2:57 pm

Google

Search SFG Forum

yellowing cuke plants

View previous topic View next topic Go down

yellowing cuke plants

Post  lzalvis on 6/18/2014, 6:44 pm

This is my first time growing cukes, so I don't know what to expect.  They're pickling cukes, even though we just eat them fresh Smile.  Anyway, the whole plants look kind of pale to me, and they're definitely yellowing from the bottom up.  Also many of my cukes are misshapen.  I've read it could be nutrient deficiencies, but this is brand new MM.  I also read it could be over-watering - and I certainly have left the soaker hose on overnight more than once, so I could definitely be guilty of that.  Ironically, I see yellow and think that they're too dry.  Oh, and these beds are raised 3 feet off the ground.  
Thoughts?






lzalvis

Posts : 47
Join date : 2011-06-26
Location : zone 7, Atlanta, GA

View user profile

Back to top Go down

Re: yellowing cuke plants

Post  floyd1440 on 6/18/2014, 7:16 pm

I had the sane problem last 2 years as they turned yellow and died in a couple of days.  Some have said this could be remedied by planting in warmer weather but I "think" it is bacterial wilt.  Let me know if the whole thing turns yellow and the leaves wilt up.

This year I am trying Country Fair" cukes which is supposed to be resistant to bacterial wilt.

floyd1440

Male Posts : 786
Join date : 2011-06-21
Age : 62
Location : Washington, Pa. Zone 6a

View user profile

Back to top Go down

Re: yellowing cuke plants

Post  lzalvis on 6/18/2014, 7:36 pm

Well, this yellowing has been very gradual and going on for days-weeks.  The plant is flowering well and lots of bees are setting plenty of fruit.  I know my bean plants sometimes have the underleaves turn yellow and/or die but plant is fine.  

I guess if it's wilt then there's nothing I can do.  But I look forward to other less-terrible ideas from people Smile

lzalvis

Posts : 47
Join date : 2011-06-26
Location : zone 7, Atlanta, GA

View user profile

Back to top Go down

Re: yellowing cuke plants

Post  camprn on 6/18/2014, 8:25 pm

Looks from here like downy mildew. Remove and trash the affected leaves. The plant will make more leaves.

____________________________

40 years a gardener and going strong with SFG.
http://squarefoot.creatingforum.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

http://squarefoot.creatingforum.com/t1306-other-gardening-books

Outlander is outstanding!


camprn

Forum Moderator Certified SFG Teacher

Female Posts : 13981
Join date : 2010-03-06
Age : 54
Location : Keene, NH, USA ~ Zone 5a

View user profile http://squarefoot.creatingforum.com/t3574-the-end-of-july-7-week

Back to top Go down

Re: yellowing cuke plants

Post  lzalvis on 6/18/2014, 8:57 pm

Is there a spray or treatment I can do (or need to do) for downy mildew?

ETA:  I just googled images for both bacterial wilt and downy mildew, and neither one seems to match up to my plants.  It's not spotting, or black, or brown, or splotchy.  It's like the leaves just fade their color - like someone hit 'desaturation' in photoshop  Smile

lzalvis

Posts : 47
Join date : 2011-06-26
Location : zone 7, Atlanta, GA

View user profile

Back to top Go down

Re: yellowing cuke plants

Post  camprn on 6/18/2014, 9:39 pm

@lzalvis wrote:Is there a spray or treatment I can do (or need to do) for downy mildew?

ETA:  I just googled images for both bacterial wilt and downy mildew, and neither one seems to match up to my plants.  It's not spotting, or black, or brown, or splotchy.  It's like the leaves just fade their color - like someone hit 'desaturation' in photoshop  Smile
Are all these yellowing leaves older leaves.

____________________________

40 years a gardener and going strong with SFG.
http://squarefoot.creatingforum.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

http://squarefoot.creatingforum.com/t1306-other-gardening-books

Outlander is outstanding!


camprn

Forum Moderator Certified SFG Teacher

Female Posts : 13981
Join date : 2010-03-06
Age : 54
Location : Keene, NH, USA ~ Zone 5a

View user profile http://squarefoot.creatingforum.com/t3574-the-end-of-july-7-week

Back to top Go down

Re: yellowing cuke plants

Post  lzalvis on 6/18/2014, 9:50 pm

Yes, it's all the older leaves near the bottom of the plants.  It's been going on very slowly, over weeks.  They fade, fade, fade, and then some have been drying/dying.  The rest of the plants seem to be fine, at the moment.

lzalvis

Posts : 47
Join date : 2011-06-26
Location : zone 7, Atlanta, GA

View user profile

Back to top Go down

Re: yellowing cuke plants

Post  camprn on 6/18/2014, 11:09 pm

Yes, then this is normal. The leaves are old and no longer able to photosynthesize. Just remove those leaves. All will be well, at least regarding this current mystery.

____________________________

40 years a gardener and going strong with SFG.
http://squarefoot.creatingforum.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

http://squarefoot.creatingforum.com/t1306-other-gardening-books

Outlander is outstanding!


camprn

Forum Moderator Certified SFG Teacher

Female Posts : 13981
Join date : 2010-03-06
Age : 54
Location : Keene, NH, USA ~ Zone 5a

View user profile http://squarefoot.creatingforum.com/t3574-the-end-of-july-7-week

Back to top Go down

Re: yellowing cuke plants

Post  sanderson on 6/19/2014, 12:48 am

Remember what 3 tools Mel said you need?  Trowel, pencil and , and,
And . . :
Scissors
Snip

sanderson

Forum Administrator

Female Posts : 11718
Join date : 2013-04-21
Age : 67
Location : Fresno CA Zone 8-9

View user profile

Back to top Go down

Cuke UPdate - definitely a mildew!!

Post  lzalvis on 6/19/2014, 7:10 pm

I just took another visit out there, and now I can see leaves about halfway up the plants have a white powdery substance on that I can actually brush off with my fingers (and comes off onto my black shirt).  So is this downy mildew?  Or powdery mildew?  Is there a difference?  What can I do, if anything, to save my baby plants.  I had dreams of cukes all summer  Sad   Did I do something wrong?






lzalvis

Posts : 47
Join date : 2011-06-26
Location : zone 7, Atlanta, GA

View user profile

Back to top Go down

Re: yellowing cuke plants

Post  camprn on 6/19/2014, 9:36 pm

That's what I thought looked like downy mildew.

____________________________

40 years a gardener and going strong with SFG.
http://squarefoot.creatingforum.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

http://squarefoot.creatingforum.com/t1306-other-gardening-books

Outlander is outstanding!


camprn

Forum Moderator Certified SFG Teacher

Female Posts : 13981
Join date : 2010-03-06
Age : 54
Location : Keene, NH, USA ~ Zone 5a

View user profile http://squarefoot.creatingforum.com/t3574-the-end-of-july-7-week

Back to top Go down

Re: yellowing cuke plants

Post  lzalvis on 6/19/2014, 10:22 pm

I did a google search and there appears to be a difference between powdery mildew vs. downy mildew.  Thus far, mine matches up with the powdery mildew.  I found some youtube videos that discuss treating it with a baking soda + water spray, so that's what I did this evening.  I will do it every few days and see if it's making a difference.  I also snipped off the worst bottom leaves, but the mildew has definitely spread upwards.

lzalvis

Posts : 47
Join date : 2011-06-26
Location : zone 7, Atlanta, GA

View user profile

Back to top Go down

Re: yellowing cuke plants

Post  mollyhespra on 6/19/2014, 11:24 pm

When I get powdery mildew I use a milk spray diluted 1(milk):9(water).  Works great.  I used the baking soda spray last year on my cukes that had a different disease and *I* ended up killing the vines with my treatment.  The baking soda dried up the leaves, it was just too harsh for the already-stressed plant.   Worked OK on the early blight on my toms but not the cukes.  Try the milk spray on the cukes every couple of days.

mollyhespra

Female Posts : 800
Join date : 2012-09-21
Age : 50
Location : Waaaay upstate, NH (zone 4)

View user profile

Back to top Go down

Re: yellowing cuke plants

Post  lzalvis on 6/20/2014, 5:36 pm

Oh crud, I hope I didn't kill my cuke vines.  If I didn't, I will try the milk trick.  Does it matter what kind of milk it is - whole, skim, etc?

lzalvis

Posts : 47
Join date : 2011-06-26
Location : zone 7, Atlanta, GA

View user profile

Back to top Go down

Re: yellowing cuke plants

Post  mollyhespra on 6/20/2014, 6:23 pm

Don't panic!  Baking soda spray is good stuff.  Just observe and see what's up.  I was just sharing what happened to *me*, with an alternate suggestion.  As with everything, YMMV, so just pay attention to how your cukes are responding and take it from there. 

As to what kind, I use whole milk in the hopes that the extra milkfat may help the solution cling to the leaves better, but that's just my reasoning.

Keep us posted & good luck!   Very Happy

mollyhespra

Female Posts : 800
Join date : 2012-09-21
Age : 50
Location : Waaaay upstate, NH (zone 4)

View user profile

Back to top Go down

Re: yellowing cuke plants

Post  camprn on 6/20/2014, 6:56 pm

Please translate YMMV.

____________________________

40 years a gardener and going strong with SFG.
http://squarefoot.creatingforum.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

http://squarefoot.creatingforum.com/t1306-other-gardening-books

Outlander is outstanding!


camprn

Forum Moderator Certified SFG Teacher

Female Posts : 13981
Join date : 2010-03-06
Age : 54
Location : Keene, NH, USA ~ Zone 5a

View user profile http://squarefoot.creatingforum.com/t3574-the-end-of-july-7-week

Back to top Go down

Re: yellowing cuke plants

Post  walshevak on 6/20/2014, 7:25 pm

I was forced to look it up.   Your mileage may vary.  

I had some milk that soured so I mixed in some water and poured it on the tomatoes.  Just in case.  Got some bottom leaves that don't look quite right.

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

walshevak

Certified SFG Instructor

Female Posts : 4302
Join date : 2010-10-17
Age : 73
Location : wilmington, nc zone 8

View user profile

Back to top Go down

Re: yellowing cuke plants

Post  lzalvis on 6/20/2014, 7:51 pm

Mollyhespra - I'm using your little signature icon "Never Give UP" (the little guy beating his head against the wall).  !!  Thanks for the milk tips.  I will observe things until Sunday and then do a milk spray.  Gotta go to the store before then anyway.

lzalvis

Posts : 47
Join date : 2011-06-26
Location : zone 7, Atlanta, GA

View user profile

Back to top Go down

Re: yellowing cuke plants

Post  mollyhespra on 6/20/2014, 8:50 pm

LOL!  Sorry about that.  Walshevak got it right; YMMV="Your Mileage May Vary".    happy2

mollyhespra

Female Posts : 800
Join date : 2012-09-21
Age : 50
Location : Waaaay upstate, NH (zone 4)

View user profile

Back to top Go down

Re: yellowing cuke plants

Post  Pollinator on 6/21/2014, 7:11 am

@lzalvis wrote:




This is definitely a pollination issue here, but it may be secondary.

The pointy end of the fruit resulted from no pollen being delivered to the area of the stigma that represented that part of the fruit. With no pollen, the seeds were not fertilized and the flesh of the fruit in that area will not grow.

However, it could be that the plant is so stressed by disease that its flowers are not attractive to bees. This flower got at least one visit, or you would not have a cuke at all, but you need 15-30 visits to deliver sufficient pollen.

Pollinator

Male Posts : 444
Join date : 2012-06-23
Location : Coastal SC

View user profile http://gardensouth.org

Back to top Go down

Re: yellowing cuke plants

Post  66stitches on 6/22/2014, 11:31 am

As a newbie I can't help much, but for my own growing research I came across this video on zucchini pollination that might be useful to you, if you sort out the mildew issue.

www.youtube.com/watch?v=3x1crwrsxj8


It shows how to do it yourself very clearly. Best of luck!

66stitches

Female Posts : 24
Join date : 2014-03-28
Age : 36
Location : Huron county, Ontario

View user profile

Back to top Go down

Re: yellowing cuke plants

Post  lzalvis on 6/22/2014, 5:18 pm

Update:  My plants did not burn with the baking soda spray, and I think there may have been a small improvement in the mildew.  but I'm moving onto the milk spray, which I just did.  How often can I do that?  Atlanta'a humid, so this will be an ongoing issue. 

thanks for the tips on the funny-shaped cukes.  I have seen lots of bees.  And I do see some that are growing more 'normally'.  I wanted to get the mildew issue under control a little first.  Then I'm going to give it some homemade worm compost tea to help with nutrients.

lzalvis

Posts : 47
Join date : 2011-06-26
Location : zone 7, Atlanta, GA

View user profile

Back to top Go down

Re: yellowing cuke plants

Post  mollyhespra on 6/22/2014, 5:39 pm

I think I sprayed every other day last year, but the year before that, I had one volunteer pumpkin growing out of the compost pile that got a BAD case of PM before I realized it, so in that case, I sprayed daily over & under all the leaves & stems.  So, I guess the best dose schedule depends on the severity of the PM.  I don't think it's possible to over-dose and harm the plant with the milk spray.

mollyhespra

Female Posts : 800
Join date : 2012-09-21
Age : 50
Location : Waaaay upstate, NH (zone 4)

View user profile

Back to top Go down

Re: yellowing cuke plants

Post  sanderson on 6/22/2014, 6:54 pm

Especially if it's non-fat.  I don't know how often you can spray a fat or oil on something.  Neem I do no often than weekly, if needed.  Milk 2 or 3 X a week.  I don't know what I'm talking about   Embarassed

sanderson

Forum Administrator

Female Posts : 11718
Join date : 2013-04-21
Age : 67
Location : Fresno CA Zone 8-9

View user profile

Back to top Go down

Re: yellowing cuke plants

Post  yolos on 6/22/2014, 9:30 pm

@sanderson wrote:  I don't know what I'm talking about   Embarassed
ROFL. I feel like that half the time I am trying to answer a question.

yolos

Female Posts : 2791
Join date : 2011-11-20
Age : 66
Location : Brooks, Ga Zone 7B/8A

View user profile

Back to top Go down

Re: yellowing cuke plants

Post  Sponsored content Today at 4:59 am


Sponsored content


Back to top Go down

View previous topic View next topic Back to top


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