Frederick Adolph Wolf

Diplocarpon rosae is a fungus that creates the rose black spot disease. Because it was observed by people of various countries around the same time (around 1830), the nomenclature for the fungus varied with about 25 different names. The asexual stage is now known to be Marssonina rosae, while the sexual and most common stage is known as Diplocarpon rosae. Diplocarpon rosae grows over seasons as mycelia, ascospores, and conidia in infected leaves and canes. In the spring during moist, humid conditions, ascospores and conidia are wind-borne and rain-splashed to newly emerging leaf tissue.

Diplocarpon is a genus of fungi in the family Drepanopezizaceae. The genus contains 6 species.

Diaporthe citri is a plant pathogen infecting citruses.

Cercospora capsici is a species of fungus in the family Mycosphaerellaceae. It is a plant pathogen that causes leaf spot, known as frogeye spot, on peppers.

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Diplocarpon earlianum is a species of fungus that causes disease in strawberry plants called strawberry leaf scorch. The disease overwinters in plant debris and infects strawberry plants during the spring season when it is wet. The five main methods to reduce strawberry leaf scorch include: irrigation techniques, crop rotation, planting resistant and disease-free seeds, fungicide use, and sanitation measures. Control of strawberry leaf scorch is important because it is responsible for the majority of disease in strawberries. Diplocarpon earliana affects the fruit quality and yield of the

Mycosphaerella stigmina-platani is a fungal plant pathogen.

Mycosphaerella confusa is a fungal plant pathogen.

Albuginaceae is a family of oomycetes.

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Gnomonia caryae is a fungal plant pathogen. It causes spots on leaves.

Mycosphaerella platanifolia is a fungal plant pathogen. During early spring, Mycosphaerella spores are produced in the fruiting bodies of infected leaves. It appears as uneven, round tan spots with red and brown haloes that are approximately 0.1 to 1cm large. Infections of Mycosphaerella are of minor consequence to a tree's health, but may be treated with organic pesticides in the case of a severe outbreak.

Cylindrosporium juglandis is a fungus in the order of Helotiales and a plant pathogen.

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