Cucumber diagnosis

jmsieglaff · July 24, 2018

The cucumbers are coming nicely this year. Never had a problem in the past but noticed this on some leaves tonight. Doesn’t look good. Any diagnosis and treAtments? Thanks!

friedgreen51 · August 2, 2018

Hi,
It really looks a lot like angular leaf spot. Have you had warm humid weather recently?
Fungicides containing copper help control, although I don't like spraying when cukes are on the vine.
If this is what it is, it can over winter in plant debris, so be sure to pull and dispose of all the plants, mulch and leaf debris at the end of the growing season.

August 2, 2018	#2
friedgreen51 Tomatovillian™ Join Date: Jun 2012 Location: North Carolina Posts: 159	cucumber diagnosis Hi, It really looks a lot like angular leaf spot. Have you had warm humid weather recently? Fungicides containing copper help control, although I don't like spraying when cukes are on the vine. If this is what it is, it can over winter in plant debris, so be sure to pull and dispose of all the plants, mulch and leaf debris at the end of the growing season.