
Jackie Miles
On Sunday 1 April we held the first of four planning days to help our consultant botanist Jackie Miles develop a detailed management plan for the Bemboka River Reserve.
Attendance was smaller than we had hoped but in a way this was good, as it showed what can be achieved by a small group with targeted objectives. We crossed Columbo Creek and then walked south towards the junction of the creek and Bemboka River, observing the condition of the reserve and using GPS to record the location of weed infestations.
A thunderstorm drove us back to shelter before we could go any further so we met up on the following Wednesday morning to finish our mapping.
Jackie’s draft plan of management completed in 2003 had nine recommendations.
- Change Reserve status to remove the possibility of the Reserve being leased for grazing
- Control noxious woody weeds on the Reserve and the adjacent river bank and road reserve (old highway between the Reserve and the cemetery)
- Control other noxious weeds in the Reserve (St John’s wort) and search for African lovegrass infestations.
- Control woody weeds not declared noxious on Reserve, river bank & road reserve
- Replace fencing on western boundary and repair that on other boundaries
- Implement regular burning regime on a 3-5 year cycle, burning different parts of the Reserve in rotation
- Undertake restoration of riparian tree and shrub cover along Colombo Creek
- Undertake collection of seed and propagation of appropriate species to restore groundcover biodiversity damaged by past grazing, set up process for monitoring outcomes of planting activities
- Set up photo-points for monitoring of changes to vegetation over time, on creek, in secondary grassland areas, in areas of eucalypt regeneration.
Of these 1 and 5 have been completed and there was plenty of evidence that Bega Valley Shire Council has been spraying to control weeds in the reserve (2-4). An initial planting along Colombo Creek has also been completed by the school (7) and many of the new trees and shrubs had survived the drought and thriven over the last two years . Our challenge for the detailed management plan will be to find sustainable ways to continue the work from recommendations 2-4 and 6 and to implement recommendations 7-9.
During our walkthrough, we observed that the reserve was in generally good condition after 10 years without grazing. The themeda trianda (kangaroo grass) is well established in open areas and there are also some lovely meadows of microlaena stipoides (weeping grass) in shadier parts of the reserve, and attractive native groundcovers like dichondra repens (kidney weed) under trees.
The trees themselves are healthy and diverse, with examples of black wattle, white stringybark, yellow box, forest red gum and ribbon gum amongst others. We discussed the idea of reintroducing koalas to the area. (The last colony was destroyed by the bushfires in 1971.)
The worst area of weed infestation is along Columbo Creek – the area already targeted for revegetation by the school – and this is where we are now planning to have a small Spring planting and a larger Autumn planting as part of the project. The track between the reserve and the cemetery is also weed-infested and will need to be included in the management plan.
On the Wednesday, we brought cotton gloves, hoes, cutting tools and buckets and combined walking and talking with weed control. This sounds obvious in retrospect, but Jackie ignored weeds like fleabane that had already flowered, and St John’s wort, with its rhyzomatous roots, and targeted pullable weeds just starting to flower like fireweed and stinking roger. We cut off the flower heads and put these in the bucket and left the pulled plants as mulch, making it much easier to carry home the parts of the plant that needed destroying. I was surprised how much could be covered by groups of two or three people striking out over a large area through this targeted approach.
It makes sense for our detailed management plan to include monthly working bees with activities geared to the season and what is starting to flower. And it also makes sense to start now, combining talking and planning with learning and constructive outcomes. Therefore, we have now set our second planning day with Jackie to double as a working bee to be held on Sunday 6 May at 1.00pm, meeting up at Columbo Park to see how things have changed since April and to target woody weeds (African boxthorn, hawthorn, etc) with ringbarking and painting techniques.