Table 3: Net return per hectare based on the use of fungicides under no disease pressurea,b.

HBK 5025NKS51-T8DP 5335PIONEER 95Y01
Fungicide20102011201020112010201120102011
$/ha

Untreated3076721196667118997662402713
Prothioconazole + trifloxystrobin2839692228157820875852280524
Pyraclostrobin 3119541208259119246822342515
LSD (0.05)15059

Fungicide rate: prothioconazole at 0.04 kg/ha + trifloxystrobin at 0.15 kg/ha; pyraclostrobin at 0.11 kg/ha.
bSoybean price: $0.59/kg; fungicide application costs: $12/ha/application (2 applications) for a total cost of $24/ha; fungicide costs for 2 applications, prothioconazole + trifloxystrobin: $104/ha; pyraclostrobin: $90/ha. Therefore, prothioconazole + trifloxystrobin costs were $128/ha while pyraclostrobin costs were $115/ha.