Questions about thinning apples on GoldRush for the 1st time
Planted my GoldRush tree in 2009, this is the first year in which it has set a large amount of fruit. Right now the tree is LOADED with tiny apples. It's about 15 feet high and has a caliper around 2.5 inches.
I've been advised here to aim for it to have about 60 or so apples, since last year it only had four. I have also been advised to thin to one apple per cluster before June drop, but I'm worried if I do this and then more drop, I'll be left with not enough... I am guessing this must be a pretty common amateur worry! But does it have any validity?
Also how do I know when to thin? Is it too early now when the apples are only about 1/4 inch?
Lastly, I want to spray the tree tomorrow for the 2nd time with Immunox for CAR. Would it be bad to thin it first and then spray? I.e would it be bad to spray right after opening up "wounds" on the tree?