Table 2 Tomato leaf diseases and their descriptions contained in the used dataset.
From: A comprehensive analysis of YOLO architectures for tomato leaf disease identification
Disease | Description | Annotated instances |
|---|---|---|
Late blight | It is caused by the fungus Phytophthora infestans. It manifests as water-soaked spots on leaves, which rapidly expand and turn dark brown or black1. | 3939 |
Leaf miner | It refers to the larvae of various insects that burrow into the leaf tissue, creating sinuous tunnels or spotted mines, which can produce leaf necrosis and early defoliation27. | 107,199. |
Magnesium deficiency | It typically appears as interveinal chlorosis, where the tissue between the leaf veins turns yellow while the veins remain green28. This deficiency can lead to reduced plant vigor and yield if not corrected with appropriate fertilization. | 15,870 |
Nitrogen deficiency | It is characterized by a general yellowing of the leaves, starting with the older leaves at the base of the plant. The affected plants exhibit stunted growth and reduced leaf size, leading to lower yields29. | 1693 |
Potassium deficiency | It is indicated by yellowing and browning at the leaf edges and tips, along with interveinal chlorosis30. This deficiency can cause poor root development, reduced disease resistance, and lower fruit quality and yield. | 1126 |
Spotted wilt virus | It is a viral disease in which infected plants show symptoms such as bronzing and wilting of the leaves, along with small, dark spots31. The virus can cause severe stunting and deformation of fruits, leading to significant crop loss. | 31,397 |
