Baby's-breath (Gypsophila paniculata)
Baby’s Tears (Micranthemum spp.)
Baccharis, Eastern (Baccharis halimifolia)
Baccharis, Willow (Baccharis salicina)
Bachelor button (Centaurea cyanus)
Bacopa, Lemon (Bacopa spp)
Bacopa, Lemon (Hydrotrida caroliniana)
Bacterial Bight (Xanthomonas spp)
Bacterial Blast (Pseudomonas spp.)
Bacterial Blast (Pseudomonas syringae)
Bacterial Blight (Pseudomonas cichoril)
Bacterial Blight (Pseudomonas spp.)
Bacterial Blight (Pseudomonas syringae)
Bacterial Blight (Pseudomonas viridiflava)
Bacterial Blight (various)
Bacterial Blight (Xanthomonas campestris)
Bacterial Blight (Xanthomonas campestris pv. dieffenbachiae)
Bacterial Blight (Xanthomonas campestris pv. fici)
Bacterial Blight (Xanthomonas campestris pv. hederae)