Air pollutants
on leaves that resemble late
blight but no yellowish halo
surrounds the lesions No white
fungal growth develops in wet
weather as in late blight lesions
Tipburn
Heat stress
prevails for several days
AGROTECHNOLOGY Late Blight Lookalikes on Leaves and Stems (continued)
Late Blight Lookalikes on Leaves and Stems (continued)
on leaves that resemble late
blight but no yellowish halo
surrounds the lesions No white
fungal growth develops in wet
weather as in late blight lesions
prevails for several days