Brassica growers know only too well that they must produce vegetables free from pests and disease in order to satisfy the ever-demanding retail sector. They need to grow great quality brassicas with good shelf appeal and with no visual blemishes.
According to ADAS Crop Notes, recent warm weather interspersed with rain showers has encouraged the development of leaf diseases such as ring spot light leaf spot and Alternaria. Ring spot has been cited as the main disease affecting brassicas with reported incidence of this in kale in the east.
Ring spot and Phoma are reported on purple sprouting broccoli and Brussels sprouts. In sprouts, light leaf spot affects quality and appearance of the buttons and its presence can lead to