摘要：The aim of the present study was to evaluate the efficacy of spruce biomass extract to control grey mould (Botrytis cinerea) development in field-grown strawberries. The study was performed in a commercial strawberry plantation for two years and also according to EPPO guidlines. In contrast to the laboratory investigation, the efficiency of spruce biomass extract for grey mould control on strawberries in field conditions was not convincing, possibly due to weather conditions that did not favour mould development. A better level of control was observed when lower concentrations of spruce biomass extract were used. The only treatment that significantly reduced the amount of rotted fruits, compared to untreated control was 0.5% spruce biomass extract used once a week in 2013. However, significant reduction of leaf spot diseases by the extract applications in 1 and 2% concentrations was observed.
关键词：Botrytis cinerea; Fragaria × ananassa; fruit rot; spruce; strawberry yield
