Phytophthora cactorum (Lebert & Cohn) Schröter, 1886

apple collar root

parasite

Fungal film, especially over the roots and seedlings, causing wilting, rot and death. At the top of hyphae conidia are produced, actually sporangia, 28-35 x 36-50, with an apical, 5 µm high cap. In the plant tissue many oospores.

host plants

polyphagous

Abies; Acer; Aesculus hippocastanum; Agave; Avena; Betula pendula; Calceolaria; Calluna; Castanea; Citrus; Clarkia; Dahlia; Dianthus; Erica; Eriobotrya; Fagus sylvatica; Fragaria ananassa; Gladiolus; Kalanchoe; Larix; Lepidium; Lilium; Malus; Meconopsis; Pelargonium; Phacelia; Picea; Pinus; Populus alba; Primula; Prunus; Pyrus; Quercus; Rheum; Rhododendron; Ribes; Robinia; Sempervivum; Triticum; Viola; Zea.

references

Akıllı, Ulubas Serçe, Katırcıoğlu & Maden (2012a), Brandenburger (1985a: 58), Flores Pedauye, Melero Vara & Pallás Benet (2010a), Klenke & Scholler (2015a), Kozłowska, Mułenko & Heluta (2015a), Lilja, Rytkönen, Hantula, ao (2011).