Biology Reference
In-Depth Information
over time. According to Wood and Morris (2007),
U. tepperianum
remains a highly
effective biological control agent against the alien invasive tree
A. saligna
in natural
areas and forests in South Africa (Fig. 10.1).
Fig. 10.1
Biological control of
Acacia saligna
(Port Jackson willow) by the gall-forming rust
fungus
Uromyces tepperianum
in Western Cape Province of South Africa.
Top left
: a heavily
galled, dead branch;
top right
: a heavily galled tree; and
bottom left
: a dead tree killed primarily
by the rust disease in combination with other biotic and abiotic stresses (pictures credit:
R. Charudattan)
