Using Mulla's formula to estimate percent control

Research output: Chapter in Book/Report/Conference proceedingChapter

2 Citations (Scopus)

Abstract

In California, the endemic mosquito borne encephalitides, including West Nile virus, are contained by special districts using integrated vector management programs. These agencies combine public education, source reduction and proactive larval control to suppress mosquito abundance to the point where tangential transmission of virus to humans is rare or unlikely. However, when these methods in concert fail to prevent enzootic amplification and the risk of human infection becomes eminent or is on-going, emergency adulticide applications of pyrethrin compounds are used to interrupt transmission. The efficacy of these applications has become controversial and some cities have opted to not apply adulticides. The current paper describes how a formula developed Dr. Mir Mulla some 40 years ago is still useful in solving contemporary problems of estimating percent control, a statistic useful in evaluating intervention efficacy. This simple but effective equation accounts for changes in both control and treated populations and thereby can be applied in dynamic situations where abundance is not stable. Examples are presented from ground and aerial experimental applications in Riverside County and from emergency interventions in Sacramento County in 2005 and Yolo County in 2006.

Original languageEnglish (US)
Title of host publicationVector Biology, Ecology and Control
PublisherSpringer Netherlands
Pages127-137
Number of pages11
ISBN (Print)9789048124572
DOIs
StatePublished - Dec 1 2010

Fingerprint

adulticides
Culicidae
Emergencies
Arbovirus Encephalitis
West Nile virus
Pyrethrins
virus transmission
encephalitis
pyrethrins
education
statistics
Viruses
Education
Infection
infection
Population
methodology
tetraconazole

Keywords

  • California
  • Encephalitis
  • Mosquito control
  • Mulla's formula

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)

Cite this

Reisen, W. (2010). Using Mulla's formula to estimate percent control. In Vector Biology, Ecology and Control (pp. 127-137). Springer Netherlands. https://doi.org/10.1007/978-90-481-2458-9-9

Using Mulla's formula to estimate percent control. / Reisen, William.

Vector Biology, Ecology and Control. Springer Netherlands, 2010. p. 127-137.

Research output: Chapter in Book/Report/Conference proceedingChapter

Reisen, W 2010, Using Mulla's formula to estimate percent control. in Vector Biology, Ecology and Control. Springer Netherlands, pp. 127-137. https://doi.org/10.1007/978-90-481-2458-9-9
Reisen W. Using Mulla's formula to estimate percent control. In Vector Biology, Ecology and Control. Springer Netherlands. 2010. p. 127-137 https://doi.org/10.1007/978-90-481-2458-9-9
Reisen, William. / Using Mulla's formula to estimate percent control. Vector Biology, Ecology and Control. Springer Netherlands, 2010. pp. 127-137
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