Agriculture Reference
In-Depth Information
19
OTHER FRUIT CROPS
Many of the fruit crops included in this section originated
in the tropics and subtropics and were introduced into
Australia early in the nineteenth century. Production is
limited but several crops have good potential for future
expansion. The crops are grown in various locations
throughout the tropical and subtropical areas of Australia.
BREADFRUIT
(
Artocarpus
spp.
)
ANTHRACNOSE
■
Cause
The fungus
Colletotrichum acutatum
(refer to the chapter
on Common diseases of perennial fruit crops).
Fig 19.2 Detail of anthracnose spores on breadfruit.
STEM-END ROT
■
Cause
The fungi
Botryosphaeria
spp.
CARAMBOLA
(
Averrhoa carambola
)
Symptoms
Tan lesions appear at the stem end of the fruit after harvest
and spread rapidly through the fruit. In the advanced
stages of infection, white grey fungal growth may appear
on the surface of lesions.
ANTHRACNOSE
■
Cause
The fungi
Colletotrichum acutatum
and
C.
gloeosporioide
s
(refer to the chapter on Common diseases of perennial
fruit crops).
Latent infections may be present in the skin or stem
end of fruit before harvest. Lesions usually develop
during fruit ripening. Water stress may favour fruit
infection.
Fig 19.1 Anthracnose symptoms on breadfruit.
Fig 19.3 Anthracnose lesion on the edge of a carambola fruit.
