how long does something systemic stay in the tree's system? This is
something I just want to do for this summer so that I don't have to spray
the trees with the bird's nesting in them. I just have 6 fruit trees in my
yard - not an orchard. No orchards close by that I know of. The apple, at
least, gets rust. Don't really have that much trouble.

Kim

Dormant oil comes to mind along with plenty of air
flow and traps. snip Poison is Poison....Be careful!

Bill

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Garden in shade Zone 5 S Jersey USA
Long -75.0246 Lat 39.637876
Enjoy http://terrafly.fiu.edu/