Keep in mind that the lesions we describe may not always be large. Many of the leaves we have found have had fairly small lesions.
It will also be useful to examine the underside of leaves as you look for disease symptoms. We have found many leaves with minuscule black dots on the underside. Under further microscopic examination, it appears these tiny dots may be peritheica (a structure that contains asci and ascospores of fungi in the phylum Ascomycota).
Using a microscope, we found several leaves with actual spores present on the leaf- very critical for identifying fungi! We hope to be much closer to figuring out what fungi is causing these lesions by summers end! Please keep doing surveys throughout the summer as that will only help us determine the role fungi may play in mangrove die-off. Stay tuned for updates!