Field Efficacy of Different Fungicide Treatments in Controlling Sheath Blight of Rice Transplanted by Machine
Geng Huihui
Jiang Qing
Yang Benxiang
Qin Jianhua
Abstract：Sheath blight, Thanatephorus cucumeris ( Frank) Donk, is one of the three major rice diseases. This study evaluated the field efficacy of seven fungicide treatments in controlling sheath blight of rice transplanted by machine at its initial stage. Significant disease suppression occurred in treatment with 30% propiconazole plus prochloraz EW ( at the dose of 60 ml/667m2 ) and treatment with 30% thifluzamide plus hexaconazole SC (25ml/667m2), which was sustained over 20 days. Treatment with 40% azoxystrobin WP (15 g/667m2 ) and treatment with 24% Validamycin (30 ml/667m2 ) also caused reductions in disease severity, which, however, did not reach a significant level compared to the non-treated control. On the other side, three treatments-15% validamycin A plus Tebuconazole SC (50ml/667m2), 40% mycophenolic ketone EW (80ml/667m2), and 30% difenoconazole plus propiconazole EC (20ml/667m2 ) -failed to effectively control the disease severity of sheath blight of rice.
Keywords：Propiconazole plus prochlorazAzoxystrobinThifluzamide plus hexaconazoleField efficacyMachine - transplanted riceSheath blight
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 35-38 )