Patrick
How did I know I'd get the green typing....
I was an assistant superintendent at PV for nearly 7 years so have intimate knowledge of how and why things are/were done there. I certainly wasn't there when the trees were planted but I was involved in conversations about how cool it would be to make 9 a skyline green again (along with other random stuff). The answer we got was that the trees were there for erosion control and they were going no where.
I never said the trees were at the TOP of the bank, just that I saw trees in the background of pictures in the 20s and 30s which indicated to me that those trees either grew or were planted early on and had started appearing on the horizon at the time the pictures were taken. The trees cover the entire slope, although during my time there we removed a number of the lower line of them that overhung the turf on 18.
I'm not disputing that originally there was low lying vegetation on that hill that could, or could not, provide erosion control but I do know that the unstabilized soils at Pine Valley move down hill very quickly when it rains heavy.
As for the scotch broom; I believe quite a bit has been removed but nearly every waste area and a large number of bunkers had it. When Eb Steiniger was superintendent he introduced a lot of this vegetation to help prevent washouts - as relayed to me by old crew members that worked with him.
I'm not stating the pines would be my first choice for erosion control but they do work at PV. I am not, and did not, ignore the topography behind 9 in any of my comments. I know exactly what's back there. As for your comments I am assuming you mean 10 tee as there are no tees behind left 9 green and I helped build the ones behind right 9. There is a ridge back there with overgrown bunkers in it but the entire slope from there continues to 18 fairway. So please clarify?
I know grading, ground cover and grass are the best erosion control methods - I never said anything different. The pines cover the entire bank, not just the top. They are dense and do slow down the rainfall hitting the ground underneath and seem to work in this instance - I'm just stating fact, from seeing it first hand.
When I stated that other areas wash out, I was not just referring to 9. I have spent a lot of time in a backhoe putting sand back where it belongs at pine valley and I know I never had to fix erosion behind 9 or anywhere covered with pines. I have moved a lot of sand in areas that had no cover, whether it be pines, scrub pine, scotch broom, 'native' grasses etc