ring spot


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Related to ring spot: dollar spot, necrotic ring spot

ring spot

[′riŋ ‚spät]
(plant pathology)
Any of various virus and fungus diseases of plants characterized by the appearance of a discolored, annular lesion.
References in periodicals archive ?
Amongst causative agents of papaya ring spot virus (PRSV) is highly damaging threat to the papaya cultivation (Fermin et al.
schultzei caused economic damage to some tomato and pepper plantings by transmitting Groundnut ring spot virus.
Ring spots by feeding oi Frankliniella occidentalis (Thysanoptera: Thripidae) on white table grapes
Niessl], powdery mildew (caused by Erysiphe graminis DC), summer patch (caused by Magnaporthe poae Landschoot & Jackson), and necrotic ring spot (caused by Leptosphaeria korrae J.
This means it has not been affected by disease, especially the papaya ring spot virus which is a menace in many papaya plantations.
poae), necrotic ring spot (caused by Leptosphaeria korrae J.
Odyssey showed improved resistance to drought (dormancy), leafspot, and melting out [caused by Drechslera pone (Baudys) Shoem], necrotic ring spot (caused by Leptosphaeria korrae J.
In the same trials, Award demonstrated improved drought tolerance (dormancy), resistance to leafspot and melting out [caused by Drechslera poae (Baudys) Shoem], necrotic ring spot (caused by Leptosphaeria korrae J.
In the same test, NuGlade demonstrated improved drought tolerance (dormancy), resistance to leafspot and melting out [caused by Drechslera poae (Baudys) Shoem], necrotic ring spot (caused by Leptosphaeria korrae J.
In the same trials, Total Eclipse demonstrated resistance to leafspot and melting out [caused by Drechslera poae (Baudys) Shoem], necrotic ring spot (caused by Leptosphaeria korrae J.
ELISA tests indicated that Horizon is free of ilarviruses (prunus necrotic ring spot, apple mosaic).
In Michigan, light daily irrigation reduced necrotic ring spot (Leptosphaeria korrae J.