What’s eating our red gums?

For some months now, local Red Gums, especially around Mount Alexander, have been looking pretty bedraggled, attacked by some leaf eating insect we’ve been unable to identify. It seems to prefer only Red Gums: many Australians are unable to tell eucalypt species apart, but our insects are pretty good at it.

Green Lane Sutton Grange, August 7: The trees on the left are Candlebarks, whose foliage is untouched. The others are Red Gums, in dire condition from leaf attack.

Green Lane, Sutton Grange, August 7: The trees on the left are Candlebarks, whose foliage is untouched. The others are Red Gums, in dire condition from leaf attack.

Any suggestions about what the culprit is would be welcome. Infestations of Red Gums are pretty common, but this one looks more drastic than most.

Part of our problem is that the Red Gum is a generous host. A 2002 experiment found over 450 insect species in the canopies of just two trees near the Murray River! (You can find this info and a million other fascinating things in Flooded forest and desert creek, ecology and history of the River Red Gum, by Matthew Coloff–it’s in the Goldfields library system). So presumably there are several hundred suspects in this assault case…

Red gum leaves: trees of this species have been looking stressed for some months throughout the region.

Red gum leaves: trees of this species have been looking stressed for some months in parts of the region.

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Fire monitoring abandoned before it’s begun

As we have previously reported, funding for the very worthy Box Ironbark mosaic burning project has been ceased. But we had been led to believe that this all too brief project would be continued in some reduced way by DELWP staff who could monitor a restricted range of post fire effects.

This hope is now gone. We’ve been informed that no further monitoring is planned–DELWP doesn’t have the staff to do it.

This well designed project lasted only two unusually wet years, and obviously needed further work to give its findings solid credibility. A depressingly familiar pattern is being repeated. There isn’t enough money to run land management properly: so DELWP fire operations will continue to be run without serious, detailed knowledge of their ecological effects.

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2015-16 AGM minutes and committee meeting reminder

The minutes from the 2016 minutes which was held on July 11th can be found here.

Details from the night can be viewed on our earlier post here.

FOBIF committee meetings are held on the second Monday of each month at Continuing Ed on Templeton St, Castlemine at 6pm. All are welcome to attend these usually short and often jolly affairs.

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A walk in winter sunshine

A strong turnout rocked up for FOBIF’s July walk in bracing winter sunshine on Sunday. The walk took in several unnamed ridge tops and hidden valleys in a loop around the Helge Track area. Temperatures during the day were low, but the bush presented well in bright sunshine, and a bit of sweat was generated on a couple of the climbs.

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Walkers surrounded by Golden Wattle. Photo by Liz Martin

Four species of wattle were in flower, hillsides were covered in rich moss carpets, and there was plenty of interesting fungi about.

The three photos below were taken by Liz Martin. You can see more photos of the walk on Dominique Lavie’s facebook page.

Next month’s walk will be led by Paul Hampton in the Walmer area. For details check the walks program.

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Fire on the Loddon? Not so much, but…

As we’ve previously reported, draft DELWP fire maps have shown an area along the Loddon River between Vaughan and Glenluce as Zone 2 (bushfire management): this would require management burns to cover 80% of the defined area at uncomfortably regular intervals.

We questioned fire officers at the June meeting of the Castlemaine Field Naturalists about the safety value and ecological impact of such a plan, and  have since been informed not only that the area has now been changed to Zone 3, Landscape Management (a gentler system of fuel management) but that the Department will not deliberately burn River Red Gum zones like this one. FOBIF is extremely wary of any plan to deliberately burn this steep river valley, and will watch the future planning of fire along the valley to see exactly what is intended for this area.

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