En EspaŅol
Share

Ask Mr. Smarty Plants

Mr. Smarty Plants - Growth on underside of squash plant leaves

Ask Mr. Smarty Plants is a free service provided by the staff and volunteers at the Lady Bird Johnson Wildflower Center.

Search Smarty Plants
    
 
See a list of all Smarty Plants questions
Can't find the answer in our existing FAQs, submit a question to Mr. Smarty Plants.

Need help with plant identification, visit the plant identification page.
 
rate this answer
Not Yet Rated

Saturday - August 22, 2009

From: Oakdale, CT
Region: Northeast
Topic: Diseases and Disorders
Title: Growth on underside of squash plant leaves
Answered by: Nan Hampton

QUESTION:

I have a mold in my garden that is oval in shape and has spikes growing out of it, the color is yellow. This mold (yup it's not a bug I checked) is all over the underside of my squash plants. Any help or direction would be great.

ANSWER:

Mr. Smarty Plants found several good sites describing diseases and pests of the squash plant and its relatives.  Here are a couple of them:  Common Squash Problems and Assorted Foliar Diseases of CucurbitsAlternaria leaf spot and Mosaic are the closest matches I could find, but there is nothing I could find that exactly matched your description. It might help us a little to know how large these areas are in diameter and how thick they are. If the Alternaria leaf spot or the Mosaic is not what you are seeing (and I'm doubtful that it is), please send us photos of these yellow spiky growths on your squash leaves and we will do our best to identify them?  Visit Mr. Smarty Plants' Plant Identification page for instructions on submitting photographs.

 

 

More Diseases and Disorders Questions

Problem with Quercus texana (Nuttall oak) in Alabama
March 12, 2014 - I have a 3" diameter Nuttall Oak that the builder planted when building the house. Last summer I noticed that several spots on the trunk were oozing sap (vertical approximately 1.5" long by 0.5" wi...
view the full question and answer

Can Live Oak suckers be mowed during Oak Wilt spread season in Austin?
April 12, 2010 - I live in South Austin, not too far from the Wildflower Center. I have a Live Oak in my yard with a substantial amount of sucker growth from the roots. Can I mow them freely throughout the year, or ...
view the full question and answer

Dying foliage on non-native Otto Luyken Laurel from Georgetown KY
April 09, 2014 - I have 5 luken laurel scrubs planted around foundation. They have done very well until this last winter..the foilage is now brown and crispy. Will they come back? Do I need to prune back the damage...
view the full question and answer

Leaf browning problem on unidentified plant from Batesville MS
October 01, 2013 - Have a night series plant that is all of a sudden the leaves on the ends are turning dark brown and eventually back to the stalk. I flushes good and cut off dead parts and it continues. Any ideas? it ...
view the full question and answer

Webs on tree trunk, probably bark lice
August 19, 2009 - webs on tree trunk and creeping up. See no spiders or worms. what could be. very fine, thick web
view the full question and answer

Smarty Plants's Facebook profile Support the Wildflower Center by Donating Online or Becoming a Member today.

Mr. Smarty Plants wants you to be his Facebook friend. Click the Facebook icon to add yourself to Mr. Smarty Plants list of friends.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | SITEMAP
© 2014 Lady Bird Johnson Wildflower Center