Control effect of windbreaks on bacterial shot hole on peach

Abstract

We investigated the wind velocity and the control effect of windbreaks on bacterial shot hole in commercial peach orchards in Wakayama Pref. In mature orchards, the relative wind velocity decreased with increasing distance from the windbreak net. The relative wind velocity was lower in the orchard protected by a windbreak hedge than by a windbreak net. The protective value that significant difference was found at the first row was 46.8-83.0 when the percentage of infected fruit in the untreated orchard was 8.0-82.7%. At a higher rate of infection, the protective value hardly decreased.