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| Content Provider | Springer Nature Link |
|---|---|
| Author | Faulde, M. K. Scharninghausen, J. J. Tisch, M. |
| Copyright Year | 2007 |
| Abstract | Emergency control of disease vectors requires high efficacy, rapid reaction and safe use of biocides in order interrupt transmission cycles without harming humans, non-target animals and the environment. In countries with complex emergencies, air-borne large-scale vector control is often limited, or impossible, due to questionable security as well as military, safety, equipment, or logistical constraints. While facing a potential outbreak of malaria and dengue fever in the Kabul area, Afghanistan, combined with high abundance of anopheline and Culex mosquitoes, emergency mosquito larvae control with Bacillus thuringiensis var. israelensis (Bti) and methoprene were carried out. For the first time, larvicides were applied by using a modern fire fighting truck in combination with aerial imaging of potential breeding sites. Three treatments with 0.07 g a.i. sterilized, water-dispersible granular (WDG) Bti/m2 in combination with 0.0014 g a.i. methoprene/m2, or 0.07 g a.i. Bti/m2 alone, were conducted on July 29, August 29, and September 28, 2004, and significantly reduced larval indexes of 96.5 (P < 0.0001), 96.7 (P < 0.0001), and 97.6% (P < 0.0001) against anopheline, and 98.2 (P < 0.0001), 95.6 (P < 0.0001), and 96.2% (P < 0.0001) against Culex larvae, respectively. Before the larviciding campaigns started, up to 222.4 ± 32.0 mosquitoes were captured per standardized light trap per night. During May until October 2004, the following anopheline and Culex species were abundant: A. superpictus (29.3%), A. fluviatilis (17.0%), C. pipiens (15.2%), and C. pseudovishnui (38.5%). After biolarviciding, abundance of adult mosquitoes, as measured by light trap catches 20 days post-treatment, decreased significantly in Anopheles at 81.4 (P < 0.0001), 87.1 (P < 0.0001), and 78.2% (P = 0.01), and in part significantly in Culex for 75.2 (P < 0.0001), 78.3 (P < 0.0001), and 30.8% (P = 0.463), respectively. After the treatment, mosquito-associated annoyance complaints and disease transmission decreased markedly, and not a single confirmed case of malaria or arbovirosis was reported. It is concluded that biolarviciding using a fire fighting truck as the application device is a highly successful, rapid, and cost-effective method to control vector mosquito larvae, and to reduce human exposure to mosquito-borne diseases during complex emergency situations. |
| Starting Page | 71 |
| Ending Page | 77 |
| Page Count | 7 |
| File Format | |
| ISSN | 16124758 |
| Journal | Journal of Pest Science |
| Volume Number | 81 |
| Issue Number | 2 |
| e-ISSN | 16124766 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2007-11-20 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Anopheles superpictus Anopheles fluviatilis Bacillus thuringiensis var. israelensis Culex spp. Biolarviciding Vector control Methoprene Mosquito larvae control Forestry Ecology Plant Sciences Plant Pathology Agriculture |
| Content Type | Text |
| Resource Type | Article |
| Subject | Ecology Plant Science Ecology, Evolution, Behavior and Systematics Insect Science Agronomy and Crop Science |
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