Is this a blight?

BLTLOVER · June 24, 2012

I have never had any problem with disease with my potato crop until this year. Can someone identify what it is? It started with a few yellowing leaves and I sprayed with Daconil a couple of times and then with a fruit tree fungicide once. It didn't start until after they bloomed and they should be near the point when the vines start dying anyway so hopefully I should still get a good crop?

feldon30 · June 24, 2012

I mostly see brown crisping and curling of leaf edges. It doesn't look like either early blight or late blight to me. Any chance you have fertilized recently?

BLTLOVER · June 24, 2012

No I haven't fertilized. It's got me stumped. Like you noted, I've looked at examples of potato blight and it just doesn't look like it. I wonder......I did water them during the heat of the day a couple of times when it was in the 90s. Could it be sun scald??

delltraveller · June 24, 2012

Perhaps it's windburn. It has been hot and windy around here.

BLTLOVER · June 24, 2012

It could be, you're right on the wind for sure. I'm just going to assume that it's something like that. Thanks for the help!

Medbury Gardens · June 30, 2012

I get a bit of what looks similar to that also and it may well be wind because we get get hot dry winds off the maintains in summer but hadn't been to worried about it up till now really.

June 24, 2012	#2
feldon30 Tomatovillian™ Join Date: May 2006 Location: Rock Hill, SC Posts: 5,346	I mostly see brown crisping and curling of leaf edges. It doesn't look like either early blight or late blight to me. Any chance you have fertilized recently? __________________ [SIZE="3"]I've relaunched my gardening website -- [B]TheUnconventionalTomato.com[/B][/SIZE] * [I][SIZE="1"]*I'm not allowed to post weblinks so you'll have to copy-paste it manually.[/SIZE][/I]

June 30, 2012	#6
Medbury Gardens Tomatovillian™ Join Date: Jun 2008 Location: Medbury, New Zealand Posts: 1,881	I get a bit of what looks similar to that also and it may well be wind because we get get hot dry winds off the maintains in summer but hadn't been to worried about it up till now really. __________________ Richard

June 24, 2012	#3
BLTLOVER Tomatovillian™ Join Date: Jul 2011 Location: Iowa Posts: 90	No I haven't fertilized. It's got me stumped. Like you noted, I've looked at examples of potato blight and it just doesn't look like it. I wonder......I did water them during the heat of the day a couple of times when it was in the 90s. Could it be sun scald??

June 24, 2012	#4
delltraveller Tomatovillian™ Join Date: Mar 2011 Location: Iowa Posts: 481	Perhaps it's windburn. It has been hot and windy around here.