Peanut Leaf Spots

Top: early leaf spot of peanut, caused by the fungus Cercospora arachidicola.

Bottom: late lead spot of peanut, caused by the fungus Cercospora personata (synonym Phaeoisariopsis personata).

The peanut leaf paintings are both from 08 Jan 2023. I had considered releasing them on subsequent weeks, but decided against it.

The painting shows the adaxial (upper) and abaxial (lower) faces of a peanut lead side-by-side. Peanut leaves are compound, with four leaflets arranged as two pairs along the stem. The early leaf spot lesions are dark brown on the adaxial surface, with a chlorotic halo, and lighter brown on the abaxial surface. The late leaf spot lesions are brown on the adaxial surface, and black on the abaxial surface.

Previous
Previous

Leaf Shapes

Next
Next

Germinating Monocots vs Dicots