Comparison of the efficacy of LSP (LSP-50 nm, LSP-180 nm, and LSP-600 nm), copper (Kocide 3000), and grower standard (Cu–EBDC) to manage bacterial spot disease severity (area under disease progress curve – AUDPC) on tomato variety ‘Grand Marshall’ in a field experiment in Quincy, FL.

Treatments	Rate (μg mL−1)	AUDPCb
LSP-50 nm	100	2095.4 abc
LSP-50 nm	500	1869.0 ab
LSP-180 nm	100	2053.6 ab
LSP-180 nm	500	1769.6 a
LSP-600 nm	100	2001.4 ab
LSP-600 nm	500	1774.9 a
Kocide 3000		2636.1 c
Cu–EBDCa		1974.8 ab
Water		2188.2 b

^aCu–EBDC is composed of Kocide 3000 (2100 μg mL⁻¹) and Penncozeb® 75DF (1200 μg mL⁻¹).

^bThe area under disease progress curve (AUDPC) was calculated using the midpoint values of Horsfall–Barratt disease severity scale.

^cNumber with different character in the same column has significant difference (p-value = 0.05) based on Least Significant Difference statistical analysis using the IBM® SPSS® program.