How to save dying weeping blossom tree?

[Cher54]

weeping blossom tree bought 3/4yrs ago replanted in the  winter looking sad come spring sprayed leaves & limbs with seasol washed of 3 days later when leaves/ limbs started to die, now has 2 spots of sap on upper trunk, new leaves dying of b4 they shoot, tiny black spots & leaves are being eaten looks like a white wax peeling of a couple of smaller stems. I think originally I over fertilised it now several problems hole you can help I really don't want to lose it

[MitchellMc]

When was the last time you watered, or it rained, and for how long @Cher54? Can you please stick your finger into the soil around the tree at least 10cm deep and tell me if the soil is soaking wet, moist, almost dry or bone dry?

Mitchell

[Cher54]

checked yesterday soil is moist water garden every second day 3/4hr could it be burnt having very hot days & it's in full sun until about 3pm it does have new growth on it, just a couple of limbs with leaves dying

[MitchellMc]

Hi @Cher54,

Is it 45 minutes to water the whole garden or just this plant? I'd be looking at a 10-minute soaking once every three days. If there is a clay base and you are watering that frequently, the bottom roots could be sitting in a pool of water constantly. 

It might be worth putting up some shadecloth to protect the plant. However, if this was an exposure issue, you'd presume it would have been burnt in the previous years, too. If it's been hotter than in previous years, it might be best to consider whether there's a slightly less exposed spot for the plant unless you're happy to put up shadecloth periodically.

Mitchell

[Cher54]

45 mins the whole garden automatic sprinklers might cut back to 1/2hr every 2nd day  will try the shade cloth did do it  a couple of yrs ago