See the following:

Knapp, Anthony M. "Dichlorvos (Vapona) Update." *Conserve O Gram* Number 2/4
.Washington D.C.: National Park Service, 1993.

Dawson, John E. *Technical Bulletin 15: Solving Museum Insect Problems:
Chemical Control.* Ottawa: Canadian Conservation Institute (CCI), 1992.

Stone, Janet L., and Edwards, Jennifer A. "Dichlorvos in Museums: An
Investigation Into Its Effect on Various Materials." *A Guide to Museum Pest
Control,* edited by Linda A. Zycherman and John Richard Schrock. Washington
D.C.: Foundation of the American Institute for Conservation of Historic and
Artistic Works and the Association of Systematics Collections, 1988.

Williams, Stephen L., and Walsh, Elizabeth A. "Effect of DDVP on a Museum
Insect Pest." *Curator* 32, no. 1(1989): 34-41.

_____. "Behavior of DDVP in Storage Cases." *Curator* 32, no. 1 (1989):41-48.

Williams, Stephen L., Walsh, Elizabeth A., and Weber, Stephen G. :Effect of
DDVP on Museum Materials." *Curator* 32, no. 1 (1989):49-69


There is also a brief reference in Pinniger, David. *Insect Pests in
Museums.* 3d ed. London: Archtype Publications Limited, 1994.

Good luck.
Pat Miller

At 11:13 AM 6/15/98 CST, you wrote:
>Museum-L'ers
>
>        We are in the process of upgrading our Pest Management schedule.  A
>colleague in Natural History Collections has recommended a strip type
>of repellant called Vapona.  In going through the list archives, I
>have found several posts which recommend against the use of this
>product.  Specifically these posts mention a series of articles by
>Steve Williams which appeared in Curator several years ago.  Does
>anyone know the dates of these articles??  If this stuff is harmful I
>would like to pass as much information along to my colleague as
>possible.
>
>
>
>Patricia McElyea                                 Unless the heart sees
>Curator of Collections                           The mind will never see.
>Arkansas State
>   University Museum                                      --Maori proverb
>[log in to unmask]
>
>
Patricia L. Miller, Executive Director
Illinois Heritage Association
602 1/2 E. Green St.
Champaign, IL 61820
(217)359-5600; fax (217) 344-6171; email [log in to unmask]