cordellcoleman
Newly Registered
Posts: 1
Joined: Wed May 06, 2009 4:40 pm
Location: Houston, t

Leaves on Zucchini plant are turning brown.

My zucchini plants are just starting to bear fruit when the leaves on the largest plant started to turn brown. The other plants seem to be doing fine.

I have checked for squash vine borers and I give them miracle grow once a week as instructed. Several of the leaves look as if something has been eating them. I have noticed some of those little green fruit flies on the plants but I have been spraying sevendust once every two weeks to keep the flies under control.

We have had a lot of rain lately in Houston so I haven't been watering them that much.

I have included some pictures, if anyone has an idea what's going on, your help would be appreciated.

[img]https://i150.photobucket.com/albums/s97/colemanfurniture/zuc-plant1.jpg[/img]

[img]https://i150.photobucket.com/albums/s97/colemanfurniture/zuc-leaf2.jpg[/img]

[img]https://i150.photobucket.com/albums/s97/colemanfurniture/zuc-leaf.jpg[/img]

User avatar
BrianSkilton
Green Thumb
Posts: 547
Joined: Sat Feb 14, 2009 10:59 pm
Location: South Dakota

I have read on the internet that, leaves that turn brown around the edges, means the plant has had some environmental stress, and more than likely has a root problem. Your raised beds may not be filled with enough dirt. Did you till the area your raised beds lye over, or is there grass underneath? If you didn't till the area underneath the raised beds, the roots may be having some trouble penetrating through the grass. Could be a long shot, but you never know.

User avatar
applestar
Mod
Posts: 30514
Joined: Thu May 01, 2008 7:21 pm
Location: Zone 6, NJ (3/M)4/E ~ 10/M(11/B)

To me, these leaves look like powdery mildew damage. I use alternating applications of diluted milk spray and compost tea spray or watering can drench. I've no idea if the chemical fertilizer and sevin schedule is -- uh -- OK. Sevin is pretty nasty stuff. There's a sticky at the top of the Organic Gardening forum. You might want to take a look.

rudistolt
Newly Registered
Posts: 1
Joined: Sun Jul 12, 2009 12:09 pm
Location: crescent city ca

I have the same problem and am looking for answers. At first it was one zuc and now I am having the same prob with both my yellow squash? Did you figure out what was going on? Thanks

User avatar
gixxerific
Super Green Thumb
Posts: 5889
Joined: Fri Jun 26, 2009 5:42 pm
Location: Wentzville, MO (Just West oF St. Louis) Zone 5B

applestar wrote:To me, these leaves look like powdery mildew damage. I use alternating applications of diluted milk spray and compost tea spray or watering can drench.
Sorry for the hijack of this thread but I keep hearing about this milk spray thing. What is it just water and regular store bought milk mixed. And how does this do what it does. I am very analytical. I need to know why and how something works not just do this and this will happen.

Dono

cynthia_h
Super Green Thumb
Posts: 7500
Joined: Tue May 06, 2008 7:02 pm
Location: El Cerrito, CA

The science behind the 1:10 milk:water spray:

https://www.helpfulgardener.com/forum/viewtopic.php?t=14076

Cynthia H.
Sunset Zone 17, USDA Zone 9

pp
Newly Registered
Posts: 2
Joined: Wed Jul 22, 2009 7:32 pm

Hi everyone, I'm a 3rd year beginner gardener. Do I have the same thing? most of the leaves on my zuke plants are yellowing on the edges but they are not wilting. I checked the trunk and it looks great, no signs of svb. The leaves aren't growing as large as they should, mostly staying a little larger than my hand. I'm getting very little fruit and some of the flower buds are drying up, too. I planted seeds that were from last years packet.
[IMG]https://i789.photobucket.com/albums/yy171/plp6976/zukeleaffront.jpg[/IMG]
[IMG]https://i789.photobucket.com/albums/yy171/plp6976/zukeleafback.jpg[/IMG]

pp
Newly Registered
Posts: 2
Joined: Wed Jul 22, 2009 7:32 pm

obviously I pasted in the wrong link for the pictures:
https://i789.photobucket.com/albums/yy171/plp6976/zukeleaffront.jpg
https://i789.photobucket.com/albums/yy171/plp6976/zukeleafback.jpg



Return to “Vegetable Gardening Forum”