ordinary meeting of council to be held on tuesday, 18 july 2006

• If the barrier is not continuous, it should join with an existing structure that will prevent the
bamboo spreading eg. masonry wall with deep footing, and must <strong>be</strong> material that is a least as
deep as the rhizome barrier and not prone <strong>to</strong> degrading eg. concrete.
• Where the rhizome barrier ends at a wall it should <strong>be</strong> returned around the corner and along
the wall, at least for 350mm so that the rhizome is forced <strong>to</strong> grow back in<strong>to</strong> the grove itself.
The barrier should <strong>be</strong> secured hard up against the wall so that the rhizome cannot grow
outside the barrier.
• Retaining walls should <strong>be</strong> installed where steep banks cannot support the barrier in the long
term.
Maintenance
The <strong>to</strong>p <strong>of</strong> the barrier should <strong>be</strong> checked every 6 months <strong>to</strong>:
• cut <strong>of</strong>f and remove any rhizomes that are growing over <strong>to</strong>p.
• remove any build up <strong>of</strong> leaves and debris. Bamboo sheds many leaves forming a dense leaf
mulch layer on the ground that makes it more difficult <strong>to</strong> properly inspect the barrier for
rhizomes growing over the <strong>to</strong>p or underneath.
• repair any defects or damage <strong>to</strong> the barrier, including re-installing any loose star pickets.
Use <strong>of</strong> reinforced concrete
• Dig trench 1200mm deep and 150mm wide with small backhoe or other trench digging
machine.
• Fill trench with reinforced concrete.
Escape pro<strong>of</strong> planters made from fibre reinforced cement
• Different sized cylindrical planters are available according <strong>to</strong> desired height <strong>of</strong> plant. The
minimum diameter is 450 mm (smaller than 450mm may force the rhizome deeper than 1m in
the ground).
• Depth <strong>of</strong> the planter must <strong>be</strong> at least 1000mm underground.
• Set <strong>to</strong>p <strong>of</strong> planter at least 50mm above ground.
• Keep soil level 50 - 75mm <strong>be</strong>low the <strong>to</strong>p <strong>of</strong> the planter <strong>to</strong> expose any rhizome that jumps the
<strong>to</strong>p <strong>of</strong> the planter.
• Inspect and cut <strong>of</strong>f all rhizomes that grow over the side <strong>of</strong> the planter on a regular basis.
Bamboo plants contained in pots
• Bamboo may <strong>be</strong> grown in a pot within 1m <strong>of</strong> property boundary if it is placed on a hard surface
(eg. non-cracking concrete), <strong>of</strong>f the ground, or on a large saucer underneath the pot, <strong>to</strong>
prevent spread <strong>of</strong> rhizomes.
Water
• A water-filled pond, stream or ditch can also effectively block the spread <strong>of</strong> bamboo, since
rhizomes and roots cannot <strong>to</strong>lerate extended periods <strong>of</strong> saturation.
• Water need only <strong>be</strong> present for one season a year.
• This option should only <strong>be</strong> used if pond, stream or ditch already exists.
Class 4 plan for Rhizoma<strong>to</strong>us Bamboo 4 <strong>of</strong> 4