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1 May 2008 An Approach to Mosquito Control: Using the Dominant Attraction of Flowering Tamarix jordanis Trees Against Culex pipiens
Yosef Schlein, Gunter C. Müller
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In this study, we identified blossoms that attract Culex pipiens L. s.l. in a Mediterranean habitat by using branches of 26 common plant species as baits for traps. The highest catch, 60.5% of the total, by flowers of Tamarix jordanis Boiss., was ≈6 times greater than the 10.7% caught by flowering Polygonum equisetiforme Sm., and 10 times higher than the 6.6% caught by flowers of Acacia saligna (Lindle) H. L. Wendl. The catch elicited by the other plants ranged between 4.0 and 0.1%. Plant attraction also was evaluated in a field situation. Experimental and control sites were similar strips of vegetation along water channels with T. jordanis trees in the center. In the experimental site, these trees were sprayed with sucrose solution, food dye, and oral insecticide (Spinosad). Concurrently, patches of plant species and trees in the control site were sprayed with solutions of sucrose and different food dye markers. Cx. pipiens populations in both sites were monitored. The highest proportion (65.2%) of the marked mosquitoes in the control site carried the dye of flowering T. jordanis. The dye of flowering P. equisetiforme and that of A. saligna were found, respectively, in 8.1 and 3.5% of the labeled mosquitoes. The marker of reed groups (Phragmites australis [Cav.] Steudel) above the water was found in 19.4% of mosquitoes, whereas the different marker of dry land reeds was found in only 0.4% of the labeled mosquitoes. In the experimental site, after treatment, the mosquitoes decreased from ≈255 per trap to ≈24 mosquitoes per trap, whereas the catch in the control site reached ≈400 mosquitoes per trap.

Yosef Schlein and Gunter C. Müller "An Approach to Mosquito Control: Using the Dominant Attraction of Flowering Tamarix jordanis Trees Against Culex pipiens," Journal of Medical Entomology 45(3), 384-390, (1 May 2008).[384:AATMCU]2.0.CO;2
Received: 22 July 2007; Accepted: 29 October 2007; Published: 1 May 2008

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Culex pipiens
floral nectar preference
oral insecticide
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