brown leaf spot

noun

Any of various plant diseases that cause brown spots on leaves.

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Meanings

nounbrown leaf spot (uncountable)
  1. uncountableAny of various plant diseases that cause brown spots on leaves.

    Foliar fungicides are not economical for controlling brown leaf spot on most commercial long grain varieties.

    2009, Samuel S. Gnanamanickam, Biological Control of Rice Diseases, →ISBN, page 35
    4 more examples

    BROWN LEAF SPOT Cercospora fusca Rand The brown leaf spot of the pecan is found generally distributed thruout the pecan-growing area.

    1917, H. Drew, Bulletin - Issues 140-175, page 145

    IAA biosynthesis by Pseudomonas syringae pv. syringae, the causal agent of brown leaf spot disease of bean, is produced via the indoleacetamide pathway, similar to the pathway in P.s. pv. savastanoi.

    1993, Clarence I. Kado, Jorge H. Crosa, Molecular Mechanisms of Bacterial Virulence, →ISBN, page 605

    The most economically important fungal diseases in India are blast, sheath blight, brown leaf spot, foot rot, stem rot, sheath rot, false smut, kernel smut /bunt, leaf smut, narrow brown leaf spot and udbatta disease.

    2010, K. G. Mukerji, C. Manoharachary, Taxonomy and Ecology of Indian Fungi, →ISBN, page 223

    The potential of acibenzolar-S-methyl (ASM), when applied alone or in combination with fungicides or antibiotics was assessed for the control of coffee rust (Hemileia vastatrix) and brown leaf spot (Phoma costarricencis) under field conditions and also for the control of brown eye spot (Cercospora cofffeicola) and bacerial blight (Pseudomonas syringae pv. garcae) on coffee seedlings.

    2013, P. Narayanasamy, Biological Management of Diseases of Crops, →ISBN, page 583
Cite this entry
APA

brown leaf spot. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/brown%20leaf%20spot

MLA

“brown leaf spot.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/brown%20leaf%20spot. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “brown leaf spot,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/brown%20leaf%20spot.

Source: brown leaf spot on Wiktionary, CC BY-SA 4.0.