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.
How to Treat Cucumber Blight. The sudden appearance of discolored leaf tissue in a cucumber bed is an alarming sight and can become a serious problem. It may be difficult to identify what is causing your cucumber's illness simply from the foliage, since insect, nematode and fungal infestations often look the same. In addition, wilts and blights exhibit very similar symptoms, though blight moves through a plant at a more rapid speed.