Labor Day 2016. Labor Day is an annual holiday to celebrate the economic and social contributions of workers to the strength, prosperity, and well-being of the country. In the United States, Labor Day is a federal holiday observed on the first Monday of September.
Quick Answer. Cucumber leaves often turn yellow because they are damaged by the potato leafhopper. The small leafhoppers pull sap from cucumber leaves and inject a toxin into the leaves, causing them to turn yellow or brown and appear burned. Continue Reading.
Cucumbers are tender, warm-season vegetables that thrive when given proper care. Cucumber plants have shallow roots and require frequent watering throughout the growing season. They are also fast growers, so frequent cucumber harvesting is important in order to prevent getting a yellow cucumber.