Angular Leaf Spot is a bacterial infection (Pseudomonas syringae pv. angulata).
Tobacco Farmer Newsletter 14 Sep 2023
burleytobaccoextension.ca.uky.edu
"Angular leaf spot has become much more common since 2015 in many areas of the dark tobacco production region and may be a larger concern than black shank for some growers. Field trials conducted recently in Tennessee and Kentucky have shown some differences in angular leaf spot susceptibility between dark tobacco varieties. For this reason, we also provide ratings of angular leaf spot susceptibility among dark tobacco varieties."
Management is mostly dependent on crop rotation. While certain antimicrobial sprays are available, they are inaccessible and impractical for home growers.
Bob
Tobacco Farmer Newsletter 14 Sep 2023
Angular Leaf Spot | Burley Tobacco Extension
Angular leaf spot is a bacterial disease. Heavy rains can drive the pathogen into leaves and cause significant problems in some fields. Spots appear angular when limited by leaf veins. Angular leaf spot lesions continue to expand under favorable conditions, but will generally be limited by the...
burleytobaccoextension.ca.uky.edu
"Angular leaf spot has become much more common since 2015 in many areas of the dark tobacco production region and may be a larger concern than black shank for some growers. Field trials conducted recently in Tennessee and Kentucky have shown some differences in angular leaf spot susceptibility between dark tobacco varieties. For this reason, we also provide ratings of angular leaf spot susceptibility among dark tobacco varieties."
Management is mostly dependent on crop rotation. While certain antimicrobial sprays are available, they are inaccessible and impractical for home growers.
Bob