07/2555 - Operational Works - Drainage Stormwater Vegetation [As Published] · 142007.2555

Attunga Heights Rehabilitation Specification 14

 

 

Cut stump method

This method is ideal for woody plants and vines without with out aerial tubers:

* cut the stem close to the ground, if possible below the lowest branch,

« immediately (with 30 seconds) apply herbicide using a small squeeze bottle
to the cut surface.

« Generally 1 part Glyphosate to 1.5 parts of water is suitable to achieve a kill
with most species

Cut material will be left on site, except where, in the judgement of the Contractor

the material is likely to restrike (eg Singapore Daisy) or set propagules. In this

case material is to be transported as waste from the site and not incorporated in

material to be mulched.

 

Spraying

Care must be undertaken to avoid drift by selecting appropriate nozzles,
adjusting droplet size, spraying in low wind conditions and keeping the spray
head close to the target plant.

Spot spraying: Undertaken manually with a knapsack or motorised spray unit.
Knapsack foliar spraying will be employed for the preparation of planting areas, the
selective target of individual weeds in planting beds or rehabilitation areas as part
of bush rehabilitation and part of on-going maintenance. Tall dead standing grass
and herbaceous weeds should be brushcut prior to planting areas.

 

 

Chipping method

Employed for trees and shrubs to be left in situ to naturally decay:

* shallow cuts are made just under the bark into the living tissue with a small
axe as close to the ground below the lowest branch;

* herbicide applied with a squeeze bottle immediately (within 30 seconds) into
the exposed cut surface;

= continue cuts around the trunk at the same level, with 5cm gaps between
each cut.

* Generally 1 part Glyphosate to 1.5 parts of water is suitable to achieve a kill
with most species

Generally standing trees are generally left to rot in situ. However, once

senescent, it may be appropriate to fell the tree (without causing damage to

rehabilitation) if the tree poses a safety hazard or significantly reduces site

amenity.

 

Tree injection

Employed for trees and shrubs to be left in situ to naturally decay:

* holes are drilled at a downward angle into the tree's sapwood at S5cm spaces;

« if a “Side Winder’ or similar device is not employed herbicide is then applied
immediately (within 30 seconds) into each hole small with a squeeze bottle.

* Best results are achieved with plants, which are actively growing.

= Generally 1 part Glyphosate to 1.5 parts of water is suitable to achieve a kill
with most species.

Generally standing trees are generally left to rot in situ. However, once

senescent, it may be appropriate to fell the tree (without causing damage to

rehabilitation) if the tree poses a safety hazard or significantly reduces site

amenity.

 

 

 

 

Scraping the stem method

This method is used for plants with aerial tubers, such as Madeira Vine.

= asharp knife is employed to lightly scrape a section of stem (approximately
10cm) removing bark and exposing the living tissue;

= apply herbicide immediately (within 30 seconds) to the exposed section with
a small squeeze bottle.

= Generally 1 part Glyphosate to 1.5 parts of water is suitable to achieve a kill
with most species

 

 

Chenoweth EPLA

078103_Rehab_12_12_07.doc Dec ‘07