Effect of trifloxystrobin and azoxystrobin on the control of black Sigatoka (Mycosphaerella fijiensis Morelet) on banana and plantain

摘要: Abstract Trials to determine the efficacy of trifloxystrobin (75 and 100 g ai/ha) azoxystrobin (100 g ai/ha), on control black Sigatoka disease caused by Mycosphaerella fijiensis Morelet (M. fijiensis), in small randomized plots banana plantain treated from ground commercial fields air, were carried out between 1997 1999. Trifloxystrobin at 75 g ai/ha showed a similar propiconazole benomyl 150 g was superior ai/ha). Azoxystrobin show against M. populations sensitive DMIs. The ED50 (ascospore germinative test) five wild type different localities 0.03 0.8 μg/ml. Results suggest that monitoring for strobilurin resistance may be conducted using 5 μg/ml as threshold concentration.