Environmental Entomology (1997) 26, 272-276

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Takahisa Miyatake, Seiichi Moriya, Tsuguo Kohama and Yukio Shimoji (1997)
Dispersal potential of male Cylas formicarius (Coleoptera: Brentidae) over land and water
Environmental Entomology 26 (2), 272-276
Abstract: To determine the size needed for buffer zones in an eradication program, dispersal ability of male Cylas formicarius (F.) was evaluated by the mark-release-capture method in the central part of Okinawa Island, Japan. Approximately 36;700 marked males were released from 2 islets. Forty-five pheromone traps were placed on 6 islets near Okinawa Island and 24 on the eastern seashore of Okinawa Island. Two traps were put at the 2 release points on the last day of the experiment. Of 71 recaptured males, 34 were caught by 3 traps on the Sea Road (a 5-km bank connecting Okinawa island and an islet) located 2 km northwest of a release point. Sixty-two traps did not capture marked males. This result suggests that for C. formicarius eradication projects, a buffer zone with a minimum radius of 2-4 km should surround the area targeted for control.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Seiichi Moriya

Research topic(s) for pests/diseases/weeds:
population dynamics/ epidemiology
control - general


Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Cylas formicarius Sweet potato (Ipomoea batatas) Japan