On Sun, 29 Jul 2007 20:56:51 GMT, Phisherman wrote:

Just having three different types is what you want....

I am trying that, so far with good results. I am alternating
malathion with insecticidal soap and a neem oil product. I started
with one application every three days, and I'm now stretching it to
every four days.

Any thoughts on how long I need to continue this, and whether the
application can safely be stretched any more? (Three days was about
the length of time the trees stayed mite-free when I was using
malathion alone.)

The trees have lost most of their second set of leaves, and are now
sprouting the beginnings of a nice third set. Apparently they have
some bounce in them yet.