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Lookup NU author(s): Abdallah Aada,
Dr Ethan Hack
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Spot blotch caused by Bipolaris sorokiniana (teleomorph Cochliobolus sativus) is a serious disease of barley in Libya. A small-scale field experiment was carried out in the UK to test the effectiveness of Trichoderma harzianum T-22 for controlling spot blotch in two Libyan barley cultivars, Nibola and Rehan. Nibola was significantly more resistant to spot blotch than Rehan. Two methods of applying T-22, foliar spray and seed coating, were tested individually and in combination. There was some reduction in disease severity with all three application methods, but the combined treatment most consistently reduced disease severity and increased yields of both cultivars. The results provide evidence that combining disease resistance with biological control may be beneficial for spot blotch management.
Author(s): Aada AM, Hack E
Publication type: Article
Publication status: Published
Journal: IOBC-WPRS Bulletin