Hoop pines and borers.

Hi All, first time.I have a small property on NSW North coast.There are 10 large camphors (some good straight trunks) 20 large to medium Hoop pines (mostly straight) and 12 medium to small scrappy Paulownias which all have to come down. I aim to get a Lucas to mill what I can.Can anyone help with info re borers in the hoops (I hear there are several types).Are they present in live trees, can you tell, how do I preserve felled trees.Any thoughts, on hoops or others would be welcome.