What's your question? Ask

Cucumber Plants

Q.Why Do My Cucumber Leaves Turn Yellow

Zone Los Chiles, Costa Rica, Central America | Miriam Gamboa added on February 6, 2021 | Answered

My cucumbers almost start out looking beautifully, but then the leaves start turning yellow and dying. What is causing it?

A.Answers to this queston: Add Answer
Certified GKH Gardening Expert
Answered on February 8, 2021

As I am looking at this, I notice signs of very high humidity. Your location would explain this. This can lead to fungal issues, which I suspect is Downy Mildew in this case. Heavy soils can be partly to blame, as well.

Treatments will consist of fungicides. You could get away with natural fungicides in this case, since the disease is not very resistant to treatment. Here are some articles that will help:





This article will help you to grow cucumbers to their best potential:


Was this answer useful?

Log in or sign up to help answer this question.

Did you find this helpful? Share it with your friends!

You must be logged into your account to answer a question.

If you don't have an account sign up for an account now.

Looking for more?
here are more questions about...
Cucumber Plants
Join Us - Sign up to get all the latest gardening tips!

Do you know a lot about gardening?
Become a GKH Gardening Expert