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1 January 2009 Effects of Water Color and Chemical Compounds on the Oviposition Behavior of Gravid Culex pipiens pallens Females under Laboratory Conditions
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Abstract

Oviposition behavior is a plastic trait that can be affected by a variety of physical factors and chemical cues. The effects of water color and three chemical compounds on the oviposition behavior of Culex pipiens pallens (Diptera: Culicidae) females were studied under laboratory conditions. Solutions of methylene blue (50 mg/L) and brilliant blue (50 mg/L and 200 mg/L) attracted significantly more gravid C. pipiens pallens females than did the distilled water control. Among the three chemical compounds tested, only 0.1 mg/L acetic acid solution showed significantly greater oviposition attraction activity than the control solutions of distilled water or acetone (25 mg/L) in water. A mixture of 25 mg/L methylene blue plus 0.05 mg/L acetic acid attracted significantly more gravid females to lay eggs than did distilled water, methylene blue solutions alone, or acetic acid solutions alone. A solution of 25 mg/L methylene blue and 0.05 mg/L acetic acid might have potential for use in traps for monitoring population densities of C. pipiens pallens.

Jing Li, Tianfu Deng, Hongjie Li, Li Chen, and Jianchu Mo "Effects of Water Color and Chemical Compounds on the Oviposition Behavior of Gravid Culex pipiens pallens Females under Laboratory Conditions," Journal of Agricultural and Urban Entomology 26(1), 23-30, (1 January 2009). https://doi.org/10.3954/1523-5475-26.1.23
Accepted: 1 January 2010; Published: 1 January 2009
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