Contents tagged with foliar diseases

7 October 2021

Symptoms of the key foliar and corm diseases of cyclamen, and gain an appreciation of pathogen biology.

25 November 2021

This Factsheet provides information on the leaf-spot disease of hebe caused by a Stemphylium species, it also provides information on Septoria leaf spot and other foliar diseases affecting the crop. It should assist in their accurate identification and help in the implementation of appropriate control measures.

27 August 2020

Foliar diseases are common and widespread on container-grown roses, the most important being black spot, downy mildew, powdery mildew and rust. When severe, any one of these fungal diseases may cause premature defoliation and reduced growth and their unsightliness reduces marketability. This factsheet provides guidance on how to minimise losses by good nursery hygiene, avoiding environmental conditions favourable for disease development and by appropriate fungicide treatment.

23 May 2018

Smoulder and white mould are the most common and damaging foliar diseases affecting commercial narcissus production. Leaf scorch is the main foliar disease of Tazetta narcissus, especially on the Scilly Isles. This factsheet provides information on biology of the three diseases and guidelines for their effective management.