What Are the Symptoms of Angular Leaf Spot in Cucumbers?
Learn to identify angular leaf spot in cucumbers by its distinctive yellow-brown angular spots, leaf curling, and white crusty exudate on leaves.
Video transcript
Symptoms of angular leaf spot in cucumbers include yellow to brown angular spots on leaves, which may eventually develop a water-soaked appearance. The spots can merge, causing larger areas of necrosis. Leaves may also exhibit a curling or crumpling effect as the disease progresses. Additionally, there may be a presence of white, crusty exudate on the undersides of the leaves, and lesions on stems and fruit can occur, leading to diminished plant health and yield.
Questions and answers
How can I prevent angular leaf spot in cucumbers?
Prevent angular leaf spot by using disease-resistant cucumber varieties, ensuring proper spacing for air circulation, avoiding overhead watering, and practicing crop rotation.
What treatments are effective against angular leaf spot on cucumbers?
Fungicides containing copper or chlorothalonil can help control angular leaf spot. Additionally, removing infected leaves and maintaining good garden hygiene reduces disease spread.
Can angular leaf spot affect cucumber fruit?
Yes, angular leaf spot can cause lesions on cucumber fruit, which can reduce yield and affect fruit quality.
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