Brooms, including scotch broom and needle leaved broom (Cytisus scoparius, Genista linifolia, Genista monspessulana) that have been designated as Weeds of National Significance (WoNS).
Apple scab or black spot is caused by the fungus Venturia inaequalis. Apple scab is a relatively new disease for Western Australia that can have a significant impact on apple production if not managed appropriately.
Glaucous star thistle (Carthamus leucocaulos) is an uncommon weed in Western Australia (WA). This article describes the nature of the plant.
Chinee apple, Indian jujube (Ziziphus mauritiana) is a declared pest in Western Australia (WA). This article describes the nature of the plant with links to requirements land owners/occupiers must adhere to and pest control methods.
The European wasp is considered one of the worst wasps in the world - harmful to people, our outdoor lifestyles and to our horticultural and agricultural industries. DPIRD is the agency responsible for surveillance and eradication of this pest in Western Australia.
Claying involves adding and incorporating clay-rich subsoil into water repellent topsoil to overcome the repellence.
