The image shows a close-up of a green leaf with a long, thin stem. The leaf appears to be a host plumeria plant, as indicated by the text on the image which reads "Host Plumeria Disease: Powdery mildew Pathogen: Unidentified (fungus)". The leaf has a serrated edge and is slightly curled at the edges. The background is blurred, but it seems to be an outdoor setting with other plants and soil visible.