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| Courtesy of:
http://www.ncbi.nlm.nih.gov/entrez/...bstr&query_hl=1
(If that doesn't work go to
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi and enter
"susceptibility of the bedbug" including the quotes for the search terms).
Notable is the lack oany SC or CS preparations - perhaps they weren't
around then. Also, deltamethrin, my current weapon of chpice isn't
mentioned either. But the results do agree with statements here that
where an emulsified concentrate of permethrin is used, once the material
applied to absorbs it, it no longer kills the bugs. The lambda-cyalothrin
retains it's abilities, even as an EC, but all the labels I've looked at
for prodcuts containing this are for outside use only.
"
Med Vet Entomol. 1993 Jan;7(1):69-72. Related Articles, Links
Susceptibility of the bedbug, Cimex lectularius, to selected
insecticides and various treated surfaces.
Fletcher MG, Axtell RC.
Department of Entomology, North Carolina State University, Raleigh
27695-7613.
Adult bedbugs, Cimex lectularius, were exposed for 24 h (25 degrees C)
to filter paper treated with various dilutions of the technical grade
of nine insecticides dissolved in acetone to determine the
concentration-response relationships. The order of toxicity, from most
to least based on the LC50's was: dichlorvos, pirimiphos methyl,
lambda-cyhalothrin, bendiocarb, permethrin, malathion, carbaryl,
tetrachlorvinphos, and fenvalerate. The residual toxicities of
commercial formulations of six of the chemicals diluted with water and
applied to wood, cardboard, cloth and galvanized metal, were
determined by exposing adult bedbugs at 3, 7 and 12 weeks after
treatment. The formulation of bendiocarb (FICAM 76% W) had little
residual activity on all surfaces at 12 weeks after treatment. The
formulation of carbaryl (SEVIN 21.5% L) was toxic to bedbugs on all
surfaces at 12 weeks after treatment, but required high concentrations
on wood, cardboard, and cloth. The formulation of pirimiphos methyl
(ACTELLIC 57% EC) had no residual activity on any of the surfaces at
12 weeks after treatment. The formulation of tetrachlorovinphos (RABON
50% W) had residual activity for 12 weeks on all surfaces except
metal. The formulation of permethrin (ATROBAN 11% EC) had residual
activity on only metal and wood while the formulation of
lambda-cyhalothrin (KARATE 13.1% EC) had residual activity 12 weeks on
all surfaces.
PMID: 8435492 [PubMed - indexed for MEDLINE]
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