Dr. Phyto

Silky oak

Grevillea robusta

Diseases & pests on this plant

• Phytophthora root + crown rotPhytophthora cinnamomi

  Sudden wilting + collapse of mature trees during summer heat stress, dark sunken cankers at base of trunk often oozing dark sap, root system rotted away to small white feeder roots only, gradual general decline + sparse foliage 1-3 years before final collapse, characteristic V-shaped soil-line lesion when bark peeled back.

• grey mould (Botrytis)Botrytis cinerea

  Fuzzy grey mould on leaves and stems.