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. 2012 Apr;120(4):577-82.
doi: 10.1289/ehp.1104340. Epub 2012 Jan 17.

Global trends in the use of insecticides to control vector-borne diseases

Henk van den Berg  1 , Morteza Zaim, Rajpal Singh Yadav, Agnes Soares, Birkinesh Ameneshewa, Abraham Mnzava, Jeffrey Hii, Aditya Prasad Dash, Mikhail Ejov
Affiliations

Global trends in the use of insecticides to control vector-borne diseases

Henk van den Berg et al. Environ Health Perspect. 2012 Apr.

Abstract

Background: Data on insecticide use for vector control are essential for guiding pesticide management systems on judicious and appropriate use, resistance management, and reduction of risks to human health and the environment.

Objective: We studied the global use and trends of insecticide use for control of vector-borne diseases for the period 2000 through 2009.

Methods: A survey was distributed to countries with vector control programs to request national data on vector control insecticide use, excluding the use of long-lasting insecticidal nets (LNs). Data were received from 125 countries, representing 97% of the human populations of 143 targeted countries.

Results: The main disease targeted with insecticides was malaria, followed by dengue, leishmaniasis, and Chagas disease. The use of vector control insecticides was dominated by organochlorines [i.e., DDT (dichlorodiphenyltrichloroethane)] in terms of quantity applied (71% of total) and by pyrethroids in terms of the surface or area covered (81% of total). Global use of DDT for vector control, most of which was in India alone, was fairly constant during 2000 through 2009. In Africa, pyrethroid use increased in countries that also achieved high coverage for LNs, and DDT increased sharply until 2008 but dropped in 2009.

Conclusions: The global use of DDT has not changed substantially since the Stockholm Convention went into effect. The dominance of pyrethroid use has major implications because of the spread of insecticide resistance with the potential to reduce the efficacy of LNs. Managing insecticide resistance should be coordinated between disease-specific programs and sectors of public health and agriculture within the context of an integrated vector management approach.

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Conflict of interest statement

Any views or opinions expressed in this article are solely those of the authors and do not necessarily represent those of their respective organizations.

The authors declare they have no actual or potential competing financial interests.

Figures

Figure 1
Figure 1
Relative global share of the four classes of insecticides in the annual use for vector control, expressed in terms of spray utility (recommended surface or area covered by a given amount of active ingredient).
Figure 2
Figure 2
Trends in the annual use of organochlorines and pyrethroids for vector control in the African region (metric tons of active ingredients).
See this image and copyright information in PMC

Comment in

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