What to blame

[Ron Gatrelle]

----- Original Message -----
From: "Michael Gochfeld" <gochfeld at EOHSI.RUTGERS.EDU>
Subject: What to blame


> I agreed entirely with the first part of Ron's message on Butterflies
> and Weather.  He also wrote:

> "So if there is a big drop next year don't blame it on spraying, over
> collecting, etc. "blame" (attribute) it to an unhealthy out of balance
> population explosion the season before - and see it as nature simply
> bringing populations back to normal levels."
> ****
> Actually spraying produces a big drop this year (particularly in
> univoltines). Whether it is apparent next year depends on phenology and
> whether there are early life stages hidden away.
>
> Mike Gochfeld