On Fri, 08 Aug 2003 04:20:48 GMT, "Moosh:}"
wrote:

On Thu, 07 Aug 2003 07:20:22 -0700, Walter Epp
posted:
[Quoting Independent on Sunday (London) March 30, 2003:]
.. Environmentalists say that resistance develops all the faster
because the insects are constantly exposed to it in the plants, rather
than being subject to occasional spraying.

Occasional spraying will result in many occasions where dose is
sublethal. Ideal circumstances for resistance development.

However, reminding ourselves of the perils of assumption-based
reasoning, let us hear what the experienced farmers over at
sci.agriculture has to say about that.

..