Stinker

FOBIF has alerted Mount Alexander Shire council of an outbreak of Stinkwort in the newly developed section of the Wesley Hill industrial estate.

The plant, Dittrichia graveolens, is a declared noxious weed because of its capacity to get into pasture land. Stock refuse to eat it. It will not normally invade undisturbed bushland, but can spread along disturbed roadsides.

Stinkwort on the Wesley Hill industrial estate. The infestation is confined to the landscaped area, and may have been brought in by machinery.

 

 

 

 

 

 

 

 

 

 

 

Stinkwort is a smallish shrub to about a metre tall, with slightly sticky foliage. If you rub the leaves you get a very strong, not over pleasant camphor smell on your fingers. It has a small yellow daisy like flower. It seems clear that the present infestation has been brought in on machinery doing the landscaping of the new estate, because there are few plants outside the estate boundary.

Stinkwort has a history in our area. Local environmental history researcher Doug Ralph has unearthed a report of a heated meeting in the Metcalfe area in 1931 where farmers berated authorities for allowing the weed to get out of control on Mount Alexander. The Argus reported partly as follows:

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Fire Briefing

Radio National’s Background Briefing program ‘Fighting Fire with Fire’ [broadcast on February 19 and available for podcast here] was a very fair effort to canvass all points of view on fuel management issues. The fact that it seems to have been treated with respect by people with markedly different views is an indicator of the efforts made by the programmers to give all relevant people a say.

Dense head high regrowth less than two years after a severe 'reduction burn', Castlemaine Diggings NHP, January 2012. Management burns are complex exercises: FOBIF believes DSE is often underequipped for the task, especially since there is little evidence that monitoring is being used to improve practice.

The following comment on fuel reduction burns, by Victoria’s Deputy Premier Peter Ryan, is worth quoting:

‘In the public eye there’s a notion of a match being dropped and everybody walks away. It could not be further from the fact. These are very very carefully planned and carefully conducted and they are modified to accord with whatever might be the topography, what is the biodiversity, do we need a cool burn which can be just lit and allowed to creep through, do we need something stronger? You have to adjust all these things…all these things are taken into account by the experts we have engaged to undertake this task.’

On potential damage to the environment by the present system of burning, he added:

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Weeds are for burning

In December we criticised DSE’s management of the Quartz Hill management burn [see ‘The uses of fire‘] on the grounds that the exercise failed to do anything about the prolific weeds in the area. FOBIF has now written to local Parks Victoria rangers urging that fuel reduction exercises in our region concentrate on areas close to settlement, and that they be integrated with a weed eradication strategy.

In our opinion such programs are not only ecologically sounder than broad area burning of remoter forests but also have better safety outcomes: and this view seems to have been confirmed by documentation widely aired in January [see our posts here and here].

In particular, however, we believe that a detailed plan needs to be devised and carefully implemented for the management of the section of Kalimna Park west of the tourist road and running up to housing on the town edge.

African boneseed collected by Friends of Kalimna Park: FOBIF believes that fuel reduction programs should be concentrated close to settlement, and be combined with weed clearance.

 

 

 

 

 

 

 

 

 

 

A section of this area has been marked for burning by DSE for weed clearance, but we believe that a much more comprehensive approach needs to be devised for the whole of this important area. It is heavily infested with flammable [gorse, pines] or potentially flammable weeds, but sections of it are botanically very rich: it can’t be simply ‘swept clean’ in a simple operation, but needs detailed understanding and a careful implementation strategy involving a range of fuel reduction techniques.

Obviously such an approach would be more labour intensive than, for example, the proposed burning of Tarilta Gorge. In our opinion, however, it would be far more useful from the point of view of public safety.

Moreover, an effort by Parks Victoria to come to grips with the detailed management of Kalimna and other areas close to townships offers opportunities to engage Park neighbours and Friends groups in actively attacking the problem of weeds as well as getting a better understanding of fire safety issues.

Parks Victoria has been developing a weeds strategy for this region for some time. We’ve made enquiries as to what stage this is up to, and whether it considers the fire dimensions of environmental weeds. Watch this space

 

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2012 Autumn Fungi Workshops

The Central Victorian Fungi Ecology Workshop Series is running again this coming autumn.

If you would like to know more about this curious kingdom, workshops include interactive displays, illustrated seminars and exciting forest forays deep into our local forests.

Full details are listed at www.alisonpouliot.com

Workshops book up fast so perhaps don’t delay making a reservation if you’d like to attend.

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Maniac?

The endearing creature below is a Peron’s Tree Frog, sometimes uncharitably called the Maniacal Cackle Frog, owing to its distinctive ‘machine gun’ cackle. It’s not uncommon for frogs to be seen in household gardens in our district, and for that reason alone North Central Waterwatch’s recent publication Frogs Field Guide is welcome. It contains detailed info on the twelve species of indigenous frogs known in the region, and systematic and helpful advice on how to recognise them.

The little booklet isn’t only informative, it’s very readable as well. Each frog has a double page of info, including notes on habitat, breeding habits, conservation, and an ‘interesting facts’ section. It can be obtained from the Connecting Country office at the Hub, on the corner of Templeton and Barker Streets in Castlemaine–and it’s free.

Peron's Tree Frog in a household garden at Golden Point. Photo: John Ellis, February 2012

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