Tomato leaf mold

Symptom

The initial symptom appears on the upper surface of the leaves as irregular, yellowish spots without defined margins. On the underside of the leaves, these spots present as a pale gray color, which later turns brown as the disease progresses. This symptom closely resembles magnesium deficiency and early signs of other plant diseases, making diagnosis challenging. In severe cases, the affected leaves may drop prematurely, and the plant may begin to wilt. The disease tends to be more severe in tropical regions, especially during periods of high humidity.