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.
Anthracnose is common and is caused by the seedborne fungus Colletotrichum lagenarium. Most cucurbits are susceptible. Most commercial cucumber varieties have some resistance. Depending on weather, leaf and fruit spotting may occur on young plants, especially in late plantings.t causes damping-off of many crops including cucumbers. Belly rot is common, but its occurrence and intensity are unpredictable. CONTROL: Avoid problem fields; apply fungicide to soil prior to fruit set; keep harvested cucumbers cool, well ventilated; use chlorine in wash.