lesions are light brown, sunken and surrounded by a dark brown to red-brown border. The first infection is often on the primary leaves. The fungus is seed
Coloration varies from grey to reddish or yellowish, with a median dorsal line bordered on either side by two yellowish-red or greyish stripes and small yellow
y also stems and fruits. They cause lesions on the upper leaf surface, bordered by the veins, which are first yellow and then turn brown. On the underside
(Phytophtora infestans f.sp. infestans ) causes water-soaked lesions with vague borders and white fluffy fungal growth on the leaves. The centre is grey-brown with
The side roots rot and very little of the root system survives. On the border between air and soil or substrate the plant turns brown. A typical symptom