Twenty years ago, scientists noticed many trees in Perth's Kings Park were dying. Now wo decades of testing and research are finally paying off, and the solution could help revive trees around the world.
abc.net.au/news/chlorotic-decline-syndrome-kings-park-trees/102359094Around 2003, the trees in Perth's Kings Park started to decline — their leaves yellowed and began to drop.The cause was found to be in the iron-rich bore waterSome of the trees, which are hundreds of years old, were left bare and had been slated to be cut down.
In the 1990s, additives were put into the bore water being used to irrigate parks and ovals to stop those stains. "Within six weeks they would start growing a new canopy and at that point, we knew what it was and we knew we could reverse it." "Capturing that across time, before and after treatments, is how we understand the response of a tree to our treatments."Ms Tudor said seeing that a tree had put on new, green growth was just one part of the puzzle, but having the scientific data to back it up was hugely important.
"So all of our primary water that goes out into the park into the irrigated landscapes will now be at a better pH for the health of all the plants in the garden.
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