Plz elaborate your question.

Stalk rot in maize is a complex disorder caused by several pathogens like Cephalosporium, Fusarium, Pythium, Colletotrichum, Macrophomina, Botryodiplodia or Diplodia. Each one of these pathogens grows better under determinate environmental conditions. First you have to determine what kind of fungus is affecting the maize in your area and then you can develop a strategy for control, for example if the fungus grows better under very humid soils it´s possible control it by improving soil drainage. On the other hand several maize hybrids and varieties are very resistant to these pathogens. Other very useful strategy for fungus like Pythium and others oomycets is the use of fungicide (Methalaxyl / Mefenoxam) treated seeds. Right know in the market are modern fungicide molecules that protect maize in early stages like Fludioxonil or Sedaxane.