The skyline might well be black wattle. When one flies into George the drainage lines of the various rivers are just lined with wattle. Yes, it looks arborescent and green, but when in flower there is no doubt that it is wattle. I have had very interesting comeback on posting of the biological control on social media. We found substantial evidence of it in the valley along the trail which hugs the Great Brak river below the Wolwedans dam. A landowner further east, at Elandskraal (above Sedgefield), said all his wattle show the bio control. That blackwood and gums are his main issues now. Another landowner, same area, enquired, unaware of the availability of the bio control. Yet a third (just west of Swartvlei) gave this: 'I released the galls 4 years ago and they spread all along the valley
This year our black wattles have flowered 5 times...as if the plants are trying to outdo the biological control as they flower when the midge is not at the correct stage for attack. I am monitoring to see if any seed is set!"

If anything I should not be dismissive of social media....

Anyways for you Tony - you asked!
@tonyrebelo