As a follow-up to Michael's great comments, let me share one more caviat...if you are using traps (whether snap or sticky). You must be sure to monitor the traps daily and remove any victims. If they are not promptly removed, they will serve as a food source for other pests so you
will have simply traded one problem for another!
To paraphrase Michael....Integrated Pest Management isn't easy, but it IS effective!
VivianLea Stevens
Michael Trinkley wrote:
> I realize that there is always a temptation to find success for
> difficult problems in simple solutions, but there is virtually no
> evidence that ultrasonic rodent deterrent devices have any longterm
> effect. In one study (Meehan 1984) 20 different devices were used in
> field and lab tests -- none had any effect beyond a day, after which
> time the rodents overcame any concern with the sound. There was no
> improvement when the sound was variable, random, or intermittent.
> Another study by Lund (in 1988) found the same thing, this time using 11
> different devices.
>
> The same can be said for use of these devices for birds.
>
> Simply put -- and in spite of anecdotal comments -- these things don't
> work, never have, and probably never will. If you have rodent problems
> deal with them by cleaning (eliminating food and water), excluding
> (eliminating access), and trapping (not poisoning). It's not easy, but
> it works.
>
> Best,
>
> Michael Trinkley, Ph.D.
> Director
> Chicora Foundation, Inc.
> PO Box 8664
> Columbia, SC 29202
> 803/787-6910
> [log in to unmask]
>
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--
VivianLea Stevens
Client Services Representative
Re:discovery Software, Inc.
3040 Berkmar Drive, Suite B1
Charlottesville, VA 22901
804-975-3256, x 12
804-975-3935 (FAX)
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