La Puce writes


When
did the insects started to distinguish natives from non natives?

Look at the statistics for numbers of species supported by native oaks
compared with non-native trees.

That's due to pollution and the loss of habitats

For plant eating creatures the food plant *is* the habitat.

It is not lack of pollution which makes oak or ivy able to support a
large variety of creatures in the UK, it's the fact they have been
around a long time. A native of an area which shares a similar fauna
will obviously support a good variety, a native of an area with a
completely different fauna will not provide support for the different
fauna of the UK.


not the planting of a
Verbena officinalis Kay!!


I'm getting confused by your talking of planting of different verbenas -
previously it was V bonariensis you were talking about, not V
officinalis


--
Kay