Researchers test biofungicide on apple scab
European researchers have demonstrated the potential use of a biofungicide for the control of apple scab (Venturia inaequalis). Scientists at Dutch Plant Research International (Wageningen) in collaboration with researchers in Germany, Hungary and Poland have shown that a Cladosporium cladosporoides H39 isolate is as effective against the disease as conventional spray programmes. Eight trials conducted over two years showed efficacy rates of 42-98% on leaf scab incidence and 41-94% on fruit scab. An unnamed company is evaluating the possible commercial use of the H39 antagonist, the researchers note.