Dis ease Management
Early season infections
• No control is needed or recommended
when brown spot develops early in the
growing season; infected plants will
recover with no permanent damage.
Late season infections
• When the environment is favorable
for brown spot development during early
to mid-pod fill, the disease can cause
significant yield losses. In those instances,
fungicides (strobilurin- or triazoleclass
fungicides) may be applied in the
early stages of disease development (i.e.
beginning pod to beginning seed or R3
to R5) to prevent premature defoliation
and protect crop yield. However, be
forewarned that economic returns when
using fungicides are highly variable, with
profitability only being assured when
disease pressure is high.