Do you love getting outdoors?
o Keen on gardening.
o Reasonably fit and active.
o Available next Saturday (October 21st) and have your own transport to get to Tarra-Bulga and hate weeds.
o Then helping out with weed removal at our next Working Bee could be great for you.
Meeting Point: 9.30am at the Tarra Valley Car Park
All Tools Provided: (Finish at 12.30)
BYO. Gloves, Hat, Sturdy Shoes, Drink, Snacks
RSVP: To David on 0488 035 314 or email firstname.lastname@example.org
Our first group activity for the year will be held at a site in the park along Tarra Valley Rd that we have been working on for nearly a decade now. Initially we started tackling a serious infestation of Sycamore Maple, which is a tree that can be very invasive, it has light papery seeds that disperse in the wind, it can grow in shade and then potentially become a large tree. Over the years we have pulled out hundreds of new seedlings that have spread into the park and cut out and killed many larger saplings.
We have now been successful at getting the Maple fairly well controlled and we have now also started on another weed (Tutsan) that is established at the site. Tutsan (Hypericum androsaemum) is a perennial shrub that grows to about 1.5m tall, it is related to St John’s Wort and is noted as being a serious threat to damp and wet schlerophyll forests. We have received a Communities for Nature grant to assist our efforts that will be used to fund contractors to spray the larger infestations as well as to purchase some hand tools and chemical to support our efforts.
We will be holding a working bee at the site on Saturday March the 21st. The meeting point will be at the Tarra Valley Car Park at 9.30am. Like many of our working bees’ the terrain will be steep and lots of scrambling through undergrowth will be required. Tools will be available but if you have your own favourite gloves or loppers please bring them along. Following the work we will have a free BBQ lunch provided down at the Fernholme Caravan Park (at around 1pm). If you are able to come along please call or email David Akers (0488 035 314) or email@example.com preferably by March the 18th so we know how much food to buy.
Seems like not only plants and animals can be invasive. Yesterday, while walking along Forest Track, I spotted an unusual Fungi fruiting on a fallen log. It was a vivid orange colour and seemed to have an unusual pore arrangement on the underside. After snapping a few photos, I headed home to consult the field guides. Seeing nothing really to match, I uploaded the photo to http://www.Bowerbird.org.au where a subscriber there quickly identified it as an exotic species, Favolaschia calocera otherwise known as Orange Pore Fungi.
This Fungi apparently is a recent arrival to Australia the first record of it is from 2005. It was first observed in Madagascar and has recently spread to a number of countries across the globe. According to Wikipedia it colonises ruderal sites (Wastelands/Roadsides) where it can become the dominate species. Fingers crossed it does not become a dominate feature of our not so ruderal forests. Not sure how you can weed out or control a pest fungi.
Took the trek in to check on the progress of this site recently. Part of our strategy against Wallaby predation, as well as using big guards, had been to plant Mountain Ash among some of the large dead Sycamore Maple that had been fallen at the site. Initially it had seemed that this plan had worked a treat, but we had underestimated the Wallabies and last time I visited the site (6 months ago) the pesky Macropods had pretty much munched all of the carefully placed plants; all but confirming that our conventional method of using big wire mesh tree guards is the only way to beat these beasts.
Even species that were meant to be Wallabies least preferred food such as Olearia lirata (Snowy Daisy-bush) were being heavily chewed.
On this visit things were actually looking a little better and it seemed that there had been some recovery of planted tubestock; although the ones not properly guarded were not much bigger than when they were planted over 18 months ago.
The Sycamore Maple which had once completely covered the 2ha site is also not giving up without a fight. A clamber around the site revealed many seedlings emerging and we as a group will focus on removing them before they become large feral trees. On the plus side there is mass natural regeneration of native understorey occurring with an impressive diversity of species, including plenty of Wattles; that have germinated without the aid of fire. The Maple logs that we left in-situ have been a massive bonus because the micro-climate they created has been perfect for fern regeneration, which is happening all over the site. The logs are breaking down quickly now with a variety of Fungi helping the process. We will have another planting day later in the year on this site (using the big Wallaby guards) so keep a look out for it if you are keen to lend a hand.
Overall view of site, showing the mass regeneration of shrubby understorey.
Hiding among the undergrowth a planted Mountain Asf
Snowy Daisy-bush showing the impact of Wallaby grazing.
New Sycamore Maple Seedling emerging.
Rainbow Fungus – Trametes versicolor aiding the decay of the Maple logs.
Logs left on the site aiding fern regeneration
Another log microhabitat providing a great site for fern regeneration.
Prickly Coprosma full of red berries
Lots of Kangaroo Apple with ripe fruit at the site.
Naturally Regenerated Tree Lomatia
Pine Tree that should have been dead by now.
No shortage of Sycamore Maple on site to be found and exterminated.
Hopefully they won’t be a huge threat to the ecology of Tarra-Bulga National Park but it was interesting to spot this crop of potatoes that seem to have become naturalised in a small patch in the park on the roadside along the Bulga Park Rd.
When cyclists from the Great Victorian Bike Ride “ascend” on Tarra Bulga next week they will notice along with the many native plants in flower some attractive looking flowering plants that are in fact not so desirable. One of the most obvious they will see is Creeping Buttercup – (Ranunculus repens). Although there are native Buttercup species this one comes from the Northern hemisphere. As can be seen by the sea of yellow along the roadsides at this time of the year, it has been well established for a long time and has also penetrate to some moist areas deeper in the park resulting in the displacement of native species.
Another weed that is threatening to take over and become more of a pest is Myosotis sylvatica or Wood forget-me-not. There are also native relatives of this plant in existence, but this species is native to Europe and has been introduced to Tarra Bulga from garden escapes. It is popping up all over the roadsides and is threatening to penetrate deeper into the park. Park staff and volunteers are vigilant in trying to remove seedlings whenever they are encountered but the task seems to be getting more difficult.