![These brown spots and wilting are plaguing our cucumber plants. I think it's burning due to sun exposure while my dad thinks it is caused by some sort of fungus. What is These brown spots and wilting are plaguing our cucumber plants. I think it's burning due to sun exposure while my dad thinks it is caused by some sort of fungus. What is](https://i.redd.it/bt4q9kh48gg51.jpg)
These brown spots and wilting are plaguing our cucumber plants. I think it's burning due to sun exposure while my dad thinks it is caused by some sort of fungus. What is
![Vegetable: Cucurbits, Leaf Spots | Center for Agriculture, Food, and the Environment at UMass Amherst Vegetable: Cucurbits, Leaf Spots | Center for Agriculture, Food, and the Environment at UMass Amherst](https://ag.umass.edu/sites/ag.umass.edu/files/fact-sheets/images/septoria_leaf_spot_of_cucumber_rlwick.jpg)
Vegetable: Cucurbits, Leaf Spots | Center for Agriculture, Food, and the Environment at UMass Amherst
![Vegetable: Cucurbits, Leaf Spots | Center for Agriculture, Food, and the Environment at UMass Amherst Vegetable: Cucurbits, Leaf Spots | Center for Agriculture, Food, and the Environment at UMass Amherst](https://ag.umass.edu/sites/ag.umass.edu/files/fact-sheets/images/anthracno-1.jpg)
Vegetable: Cucurbits, Leaf Spots | Center for Agriculture, Food, and the Environment at UMass Amherst
![A Green Cucumber Leaf with Yellow Spots and Dry Patches Stock Photo - Image of leaves, biology: 231777420 A Green Cucumber Leaf with Yellow Spots and Dry Patches Stock Photo - Image of leaves, biology: 231777420](https://thumbs.dreamstime.com/z/yellow-spots-leaves-cucumbers-diseases-cucumber-plant-open-field-green-cucumber-leaf-yellow-spots-231777420.jpg)
A Green Cucumber Leaf with Yellow Spots and Dry Patches Stock Photo - Image of leaves, biology: 231777420
![plant health - How bad are these spots on my cucumber leaves? - Gardening & Landscaping Stack Exchange plant health - How bad are these spots on my cucumber leaves? - Gardening & Landscaping Stack Exchange](https://i.stack.imgur.com/JBbPx.jpg)