Hi All,
I have good news to share...the offending jacaranda has been moved by my neighbour, whom I have thanked & shook hands. Since he took the opportunity to cut back his overhangs at the front of our houses from my property, he knew I meant business. Following this, my handyman followed by instructions & did a cut back of my shrubs to the fence line (leaving no room to have my plants cut & thrown back) which has left a real butchered look from their side - nice & green on mine. This wasn't intentional - just the way the shrub grew. Their row of 6 frangi panis' (along side where the jackie was & as close to my sewer line) have started to appear above the fence line & it won't be long before they branch over...so I suggest the moving of the jackie was a stand in good stead. I am elated

Though the wife is still very much put out. There is still friction here, so I don't expect much conversation between us down the line...
Thanks to all of you for your voice regarding this concern.