National weed containment and eradication zones: challenges, successes, and lessons learned.

The Weeds of National Significance programs have established national containment or eradication zones for bitou bush (Chrysanthemoides monilifera subsp. rotundata), gorse (Ulex europaeus), lantana (Lantana camara) and rubber vine (Cryptostegia grandiflora). This paper details the successes and challenges of these programs. Eradication and containment programs are instrumental in preventing further weed spread, raising community awareness and increasing commitment of local communities and regional bodies to weed management. Examples from national programs can be applied at regional scales.