Why do rusty spots appear on cucumber leaves: typical diseases

12.02.2025/05/40 XNUMX:XNUMX    307


Cucumbers are already a native crop for us, but they are picky in care, so it is important to organize proper watering and feeding so that the vegetable does not get sick. It often happens that rusty spots appear on cucumbers, and there are several reasons for this.

Details

Cucumbers appeared in the gardens from tropical forests, where it is very humid and warm. And before you start growing this crop, you need to provide conditions that will be a little similar to the tropics. If cucumbers start to dislike the environment, they start to get sick.

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Some diseases can cause rusty spots on cucumber leaves:

  • cladosporiosis - light brown spots appear on the upper part of the leaf, and spider-like mycelium appears on the lower part;
  • anthracnose – red spots, and they have even outlines;
  • ascochyta blight – large spots, but its color is initially greenish;
  • angular spotting is characterized by green oily spots, and greenhouse plants are most susceptible to this disease;
  • With downy mildew, rusty spots appear, and they increase in size.
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A pest called a spider mite can cause this problem in cucumbers.


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