6 Reasons Why Your Cucumber Leaves Are Turning White

One of the most common questions gardeners ask when growing cucumbers is this one, “Why are my cucumber leaves turning white?”

Cucumber leaves turning white can be a real problem for cucumber plants. In this post, we will try to find the actual reason for the whitening of cucumber leaves.

If you are looking for cucumber growing tips in general see our earlier post here.

Why There Are White Spots After Transplanting My Cucumber Seedlings:

Cucumber leaves that are turning white after transplanting are suffering from transplant shock. Plants go through a period of stress when they are replaced from one location to another, due to a lack of water and nutrients, as well as changes in temperature or other environmental conditions.

Why My Cucumber Leaves Turning White at the Edges

There are many reasons why cucumber leaves can turn white. It can be due to some disease, pest infestation, excess moisture, accidental blanching, or simply maturity.

Let's dig deep into these possible reasons:

1. Diseases

One of the main causes of whitening of your cucumber leaves is a disease called powdery mildew.

The Powdery Mildew Disease:

Powdery mildew is the white coating that can cover the entire surface of your cucumber plant, including leaves, stems, and even fruit. This fungal disease is caused by a lack of air circulation in the plant's environment or a lack of sunlight. It often begins on older leaves and spreads to younger leaves.

Read the full article here.