Fed all fruit trees with potash in March but8 year old pear tree that bore over 300 pears last year and 6 year old peach tree bore 6 fruit last year have now dropped all fruit this year. What can I do now to prevent this happening again (or is it weather related – I don’t think this is frost damage)
Presuming the peach is outdoor, since you mention weather, a peach tree is always marginal outdoors with the possible exception of a mild garden with good shelter and a south-facing wall. 2007 was an exceptional spring and this spring was cold. In adverse circumstances, fruit trees drop the fruit.