دانلود رایگان کتاب Pond apple – Annona glabra
Pond apple is a Weed of National Significance. It is regarded as one of the worst weeds in Australia because of its invasiveness, potential for spread, and economic and environmental impacts. Introduced as grafting stock for the closely related custard apple, it is a very hardy tree and an aggressive invader. Over time
the dense thickets it forms can gradually replace everything else in the canopy
and create an undesirable new habitat. Its ability to grow in flooded areas and
to tolerate salt water has enabled it to spread through much of northern
Queensland’s wet tropics area. It now infests more than 2000 ha of the Wet Tropics Bioregion, and threatens melaleuca wetlands and native mangrove communities.