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
» California's Drought
by sanderson Today at 7:08 pm

» Northern California & Coastal Valleys - What are you doing this month?
by Mellen Today at 6:57 pm

» Butterfly Junction
by countrynaturals Today at 6:40 pm

» What are you eating from your garden today?
by Mellen Today at 6:37 pm

» Gardening in Central Pennsylvania, 3rd year SFG
by BeetlesPerSqFt Today at 6:17 pm

» So. California & Inland Valleys -March / April Planting Guide
by No_Such_Reality Today at 1:58 pm

» Root Knot Nematodes - PROGRESS!
by sanderson Today at 1:48 pm

» Our 2017 garden makeover
by trolleydriver Today at 1:20 pm

» How's the Weather Where You're At?
by sanderson Yesterday at 10:55 pm

» Plant ID
by No_Such_Reality Yesterday at 8:24 pm

» Senseless Banter...
by trolleydriver Yesterday at 3:44 pm

» Third Year SFG in Canada
by trolleydriver Yesterday at 2:04 pm

» CANADIAN REGION: What are you doing February 2017?
by Kelejan Yesterday at 1:07 pm

» Western Mount/High Plains: Seed Planting Dates zone 5b
by RoOsTeR Yesterday at 8:58 am

» I'll get my Texas garden right yet
by RoOsTeR Yesterday at 8:57 am

» Roots...information....
by MrBooker Yesterday at 6:19 am

» Is this wood correct for building box?
by sanderson Yesterday at 4:42 am

» Hello from IA Zone 5
by sanderson Yesterday at 4:38 am

» Feedback for my 2017 garden plan
by sanderson Yesterday at 2:10 am

» ticks
by camprn 2/20/2017, 11:18 pm

» N&C Midwest: February 2017
by CitizenKate 2/20/2017, 10:58 pm

» Peppers with black spots
by camprn 2/20/2017, 10:10 pm

» February 2017 Avatar: Time to Wake Up!
by sanderson 2/20/2017, 9:37 pm

» broccoli stunted
by yolos 2/20/2017, 9:34 pm

» Sanderson - Virtual Roadtrip Flyover
by trolleydriver 2/20/2017, 4:24 pm

» Carrot Week 2017!
by Goosegirl 2/20/2017, 3:53 pm

» Problems getting spinach seeds to sprout? Try this...
by trolleydriver 2/20/2017, 3:52 pm

» Spring Fever Anyone?
by newbeone 2/20/2017, 3:15 pm

» The raised bed of my dreams!
by ralitaco 2/19/2017, 9:20 pm

» Help - Building new raised beds
by ralitaco 2/19/2017, 9:06 pm

Google

Search SFG Forum

Any idea what this is?

View previous topic View next topic Go down

Any idea what this is?

Post  mazzy on 6/17/2014, 5:51 pm

Something is getting at my squash plants.  Any idea what it is and how to control it?

Thanks,
Mazzy

mazzy

Male Posts : 69
Join date : 2014-05-08
Age : 66
Location : San Francisco Bay Area

View user profile http://www.woodworkwonders.com

Back to top Go down

Re: Any idea what this is?

Post  mazzy on 6/17/2014, 6:01 pm

Is it possible that it is Leaf Miner which is also going after my beets?  I just got some BT today and have applied it to the beets and also the squash plants.  Maybe I've already done the proper handling.

Mazzy

mazzy

Male Posts : 69
Join date : 2014-05-08
Age : 66
Location : San Francisco Bay Area

View user profile http://www.woodworkwonders.com

Back to top Go down

Re: Any idea what this is?

Post  camprn on 6/17/2014, 6:25 pm

Are there white flies on the underside of the leaves?

Click the link below.
http://squarefoot.creatingforum.com/t15553-squash-cucumber-issues

____________________________

41 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




camprn

Forum Moderator Certified SFG Teacher

Female Posts : 14075
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: Any idea what this is?

Post  mazzy on 6/17/2014, 6:57 pm

No white flies on the underside of the squash leaves.

Mazzy

mazzy

Male Posts : 69
Join date : 2014-05-08
Age : 66
Location : San Francisco Bay Area

View user profile http://www.woodworkwonders.com

Back to top Go down

Re: Any idea what this is?

Post  camprn on 6/17/2014, 9:59 pm

Mazzy, click the link above and read the thread I posted for more info.

____________________________

41 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




camprn

Forum Moderator Certified SFG Teacher

Female Posts : 14075
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: Any idea what this is?

Post  mazzy on 6/17/2014, 10:25 pm

I read the post and incorporated links.  I suppose it is possible that a strong change in weather might be the culprit.  The temperature dropped avg of 20 degrees with pretty high winds.  If it is a nutritional problem unlikely phosphorus because roots are huge and abundant.  No stunted growth so unlikely nitrogen.  The burned leaf edges looks like potassium.

I've got the cooperative extension phone numbers.  I'll see if I can email pictures to the Master Gardener.  Their office is about 20 miles away so if something is going around then they will likely have seen it.

Thanks for your help,
Mazzy

mazzy

Male Posts : 69
Join date : 2014-05-08
Age : 66
Location : San Francisco Bay Area

View user profile http://www.woodworkwonders.com

Back to top Go down

Re: Any idea what this is?

Post  mazzy on 6/19/2014, 7:09 pm

Hi...I contacted the Cooperative Extension and the following is my email and their reply:

Hi Scott,

Thank you for contacting the Master Gardener help desk about your cucumbers. Between the photos you sent and our phone conversation, the affected leaves are the lower, older ones, and the newer leaves all look OK.

The dead outside margins are probably from not having enough water, possibly during our last heat wave. Cucumbers are sensitive to high heat, and while El Sobrante is not in the warmest part of Contra Costa, you still get warm enough to stress cucumbers. If you are expecting a really hot spell (90 degrees or warmer), you might want to erect something to shade the cucumbers during the hottest part of the afternoon. You should also make sure the cucumber plants have enough water. Cucumbers require 1" to 2" of water each week.

In the second photo, the leaf appears to have downy mildew which is common in cucumbers. It appears first as small, pale green to yellow, angular spots that give the foliage a mottled appearance. Eventually the spots merge and the leaf will turn brown. Older leaves become infected first. Spores of the downy mildew fungus are carried by air currents or by rain-splash or sprinklers--a wet leaf surface is required for infection. Spacing plants to reduce canopy density and humidity will reduce its spread, but that is antithetical to the square-foot garden method, isn't it? It's possible that because you water every day the humidity stays high enough to encourage downy mildew. This may abate as we get into the drier months ahead.

Here are links to information from the University of California about growing cucumbers in the home garden and common pests and diseases: http://vric.ucdavis.edu/pdf/cucumber.pdf and http://www.ipm.ucdavis.edu/PMG/GARDEN/VEGES/cucumbers.html

I hope this information helps. Please let us know if you have more questions. Happy gardening!

seh
[size=13]Master Gardeners
University of California Cooperative Extension
Contra Costa County

75 Santa Barbara Rd., 2nd Floor
Pleasant Hill, CA 94523-4215

Mas[size=13]ter Garde[size=13]ners Help Desk
Monday-Thursday, 9:00 AM - 12 Noon
[/size]
[/size]Tel: (925) 646-6586
Fax: (925) 646-6767

Please note our new email address:  ccmg@ucanr.edu
Website:  http://ccmg.ucdavis.edu
Find us on Facebook:  www.facebook.com/CoCoMasterGarde[size=13]ners
[/size]



[/size]


[ltr]From: Scott Mazzarella [scott@woodworkwonders.com]
Sent: Wednesday, June 18, 2014 9:18 AM
To: ANRMG Contra Costa
Subject: Problem with cucumber and squash plants

[/ltr]
Master Gardner,

The attached pictures are of cumber plant leaves.  The defect is spreading to nearby squash plants.  In another part of the garden my beet leaves got attacked by leaf miners.  I used Thuricide BT  http://store.doyourownpestcontrol.com/thuricide-bacillus-thuringiensis-bt-concentrate-caterpillars?gclid=CjkKEQjw8YSdBRChhPXJvPvMztABEiQAkn893sq5CNTXFbz68mNPo8EENoxWAJUoP01smIVcE-5S3Y7w_wcB on it and have trimmed off the bad leaves.

I also tried BT and Neem Oil on the Cucumber leaves.  See attached pictures of the Cucumber leaves.  I only applied it recently so probably not enough time to correct the situation.

Do you recognize this plant infection?  Let me know your thoughts and suggested handlings.

Thanks,
Scott Mazzarella

mazzy

Male Posts : 69
Join date : 2014-05-08
Age : 66
Location : San Francisco Bay Area

View user profile http://www.woodworkwonders.com

Back to top Go down

Re: Any idea what this is?

Post  Sponsored content


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