Charcoal rot — Maize
Macrophomina phaseolina
Symptoms
Upper leaves begin drying abnormally, often after flowering. Lower stalk internodes develop dark discoloration internally. The pith becomes shredded and the vascular bundles turn dark. Numerous tiny black sclerotia may be visible on the internal tissues. Stalks become weak and may break near the base or crown. Infected kernels may also become blackened.
Recommendations
Carboxin 37.5% + Thiram 37.5%
(WS)
As seed treatment
Carbendazim 12% + Mancozeb 63%
(WP)
As soil drenching near root zone of the affected plants and the plants surrounding the affected ones.
Tebuconazole 50% + Trifloxystrobin 25%
(WG)
As soil drenching near root zone of the affected plants and the plants surrounding the affected ones.