Notes on removal


invaders (47K)
Rapid colonisation in macadamia farming country
Three process-stages of requisite Land Regeneration have been identified, with a view to the eventual full containment of toxic-hybrid Camphor Laurels: -

REMOVAL ; just as was started by the bigger macadamia growers, employing bulldozers to push away the Camphors - since the 1970s it is clear from recent Camphor spread-rates that new programmes are again necessary on sufficiently flat land; such large-scale 'attacks' are needed to significantly curb the numbers of seeding 'mother-trees'

From off school grounds, creek banks, river flats and public lands. Methodologies are at the same time clearly needed to ensure that areas being regenerated are not too large, and are staggered or alternated with areas that are not cleared, and/or only one in every three Camphor trees is removed in places where they are dense, or on steep lands.

ERADICATION ; since foresters and timber-getters' 'know how' to tell the difference between the different types of Camphor trees, mostly by looking at the bark, AND it is now confirmed that tree toxicity is correlated with inferior tree milling qualities, programmes for the complete elimination of the 'extremely toxic' tree types could be practically initiated; all the most highly toxic Camphors can be 'marked' with paint at flowering time, since a Floristic Key now exists to identify the 9 most common Chemotypes of Camphor laurel.

remnant (48K)
Camphors dominate remnant rainforest species.

REPLACEMENT BY AUSTRALIAN NATIVES ; recent(2002) research in Lismore by Camphor Research Centre staff, with Stop the Killer Camphors' scientists found that some natives perform really well after planting under old, hybrid Camphors, and in highly camphorated soil within their dripline-canopy. Most successful genus of all was Acacia spp, esp. Silver and Black Wattles, shown to be able to pierce the Camphor canopies within the first year of (irrigated) growth; cf. most other rainforest species of local origin were suppressed to almost nil, or zero-growth in the first year.

Since occasional hybrid Camphors appear to be of low-toxicity (approx 1 in 10 types, i.e. 9 out of 10 shown to be toxic), these individual Camphor trees can be left for a couple/few years as the newly regenerating areas grow-up around, with full removal of all Camphors later-on.

'ERADICATION PLANS': Whereas these have not yet been instituted in any place or region, they will be the next logical step towards the proper management of all lands 'let go' by Weed Authorities (not doing their work!) over the past 60 years.

Just as Area Management Plans are now commonplace, and 'Species Recovery Plans' for Rare, Threatened and Endangered Species are brought into force by certain local and NSW Government authorities, 'Eradication Plans' are the way of the future. Experts on toxic weeds, Weed Scientists, Phytochemists, Toxicologists, and Australia's locally-resident 'Camphor Laurel expert' agree with the majority (av. 68%)of the public (Public Surveys /Lismore Shire)that Camphors need to be eradicated from all city and productive agricultural areas, plus from around 'World Heritage Rainforests/Parks'; this only leaves a certain area of coastal land for Camphors to be grown for wood, managed(if and when provable)by an Association or Management Authority that can vouch for their sterilisation, or complete management within a plantation-sized area e.g. lower Tweed valley.

A Sustainable Land-Use Strategy for Camphors is now long overdue, by approxs. 60 yrs! Since the first horses, and native bird-pigeons were first found dead from eating Camphor bark an d berries respectively, it is now up to all regional Authorities to cooperate.