There's not a lot you can do about eucalypts- Australia is covered in them.
Well, it was.
Yes, the oil is flammable but then it always has been, and there have been devastating fires in the past.
Fuel Load
The greater the fuel load, the more intense and hot the fire. Fuel load is the accumulated debris of bark, leaf, twigs and branches littering the forest floor.
Eucalypts contain oil which aids combustion.
Grass fires occur too.
Probably half of the fires are caused by lightening but the rest are caused by accidental activity, occasionally deliberare arson.
Hot, dry, windy weather can cause the fires to get out of control and they can leap.
Weather conditions are also dependent on whether it is an El Nino or La Nina year.