Positive Phototactic Response of the West Indian Sweet Potato Weevil, Euscepes postfasciatus (Fairmaire) (Coleoptera: Curculionidae) to Chemiluminescent Light and Effectiveness of the Light Source for Attracting Weevils in the Field

<Author> Yutaka Nakamoto ; Jun Takushi
<Year> 2001
<Journal> Jpn. J. Appl. Entomol. Zool.
<Volume> 45
<Issue> 4
<Pages> 212-214
<Notes> Japanese

We detected positive phototactic response of the West Indian sweet potato weevil, Euscepes postfasciatus (Fairmaire) (Coleoptera: Curculionidae) to chemiluminescent light, used as a light source for fishing floats at night, in laboratory observations. We examined the effectiveness of the light source for attracting weevils in a sweet potato field. In the field, traps baited with sweet potato roots and light captured significantly more weevils than the traps baited with roots only.