leaf spot


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Related to leaf spot: bacterial leaf spot, Angular Leaf Spot

leaf spot

[′lēf ‚spät]
(plant pathology)
Any of various diseases or disorders characterized by the appearance of well-defined discolored spots on the leaves.
References in periodicals archive ?
Fungal leaf spot diseases are also one of the major problems for ornamental growers.
Thus, the adoption of the SAD proposed in this paper to evaluate olive leaf spot severity, can reduce the subjectivity of the estimates and provided better information for epidemiological studies on the Fusicladium oleagineum Olea europaea pathosystem under humid subtropical climate conditions.
69%) of dracaena leaf spot fungi as well as spore germination (48.
On cucurbits it causes round dark-brown leaf spot which on later stage coalesces to form blighted areas on the leaves [1].
Carol: Cherries can be prone to several leaf diseases, including cherry leaf spot.
Most of these varieties have been around for many years and some can be prone to powdery mildew and leaf spot diseases.
sesami), bacterial leaf spot (Pseudomonas syringae), Alternaria leaf spot (Alternaria sesame) (Cook, 1981), Cercospora leaf spot (Cercospora sesame) (Hansford, 1931), and damping off or root rot (Macrophomina phaseolina).
What's more, it sets new standards in disease resistance with a stem canker rating of nine and light leaf spot rating of seven.
Black Sigatoka is a leaf spot disease caused by ascomycete fungus Mycosphaerella fijiensis (Morelet).
Midwest Corn Belt, northern leaf blight and gray leaf spot are significant problems.