WITH regard to Derrick Holt’s response to my letter of August 15 (View Points, August 17), I stand by my comments regarding the “virtues” of flies, wasps, rats, slugs, and mosquitoes, as, I suspect, would a great many others.

However, his idea that “by far the greatest pest in the world today is humanity” I would not question.

NICHOLAS WILSON Summerhill Road Summertown Oxford