Image Number: 1440020

Symptoms of angular leaf spot in the field are similar to those produced in the plant bed. Spots are circular to slightly angular. After wet, rainy weather, spots may be numerous. The spots are tan at first but turn black with age. Centers of spots may drop out producing a shot-hole or ragged appearance. This bacterial disease is generally worse on the windward side of plants where watersoaking from driving rains or sandblasting tends to enhance infection.
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Image location:
United States


Kingdom: Monera
Phylum: Proteobacteria
Class: Gammaproteobacteria
Order: Pseudomonadales
Family: Pseudomonadaceae
Genus: Pseudomonas
Subject: Pseudomonas syringae pv. tabaci (Wolf & Foster 1917) Young et al. 1978


Kingdom: Plantae
Phylum: Magnoliophyta
Class: Magnoliopsida
Subclass: Asteridae
Order: Solanales
Family: Solanaceae
Genus: Nicotiana
Subject: Nicotiana tabacum (burley type) L.
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Image uploaded:
Monday, January 1, 1990
Image last updated:
Tuesday, May 17, 2011