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.
Plants Affected by Bacterial Wilt. Members of the cucurbit family: cucumbers, melons, squash, pumpkins and gourds. Causes of Bacterial Wilt on Cucumbers. A bacteria, Erwinia teach EI Phila, which is spread when the striped cucumber beetle or the spotted cucumber beetle feed on the plantâs leaves.