SAK, The point with West Nile Virus is that it is not native to North America and was brought here by man, just like saw tooth oaks. You knew that.

As far as " the Penn woods will be dominated by saw tooth oak trees in 30 years in absurd."

No one mentioned that but you, and yes that IS absurd, it would take much longer than that.

The point is that someone would have to put forth effort to control sawtooth oaks because they are not native oaks. Just like Morrow' s Honeysuckle, Multiflora Rose, purple loose strife, zebra mussels, ECT, they would have to be controlled because they out compete native plant species.

The best solution is not to plant non-native species in the first place. Native species will feed the deer just fine.

One does not need a degree in forestry to understand the morel concept.