@article {13306,
	title = {A convenient estimation of the sources of sweet potato weevils, Cylas formicarius (Fabricius) (Coleoptera: Brentidae), in recently invaded areas in Japan, by random amplified polymorphic DNA technique},
	journal = {Applied Entomology and Zoology},
	volume = {42},
	number = {2},
	year = {2007},
	month = {May},
	pages = {297-303},
	keywords = {Cylas formicarius},
	isbn = {0003-6862},
	author = {Kawamura, Kiyohisa and Sugimoto, Tuyosi and Matsuda, Yoshinori and Toyoda, Hideyoshi}
}
@article {13303,
	title = {Geographic variation of elytral color in the sweet potato weevil, Cylas formicarius (Fabricius) (Coleoptera: Brentidae), in Japan},
	journal = {Applied Entomology and Zoology},
	volume = {44},
	number = {4},
	year = {2009},
	month = {Nov},
	pages = {505-513},
	abstract = {To use elytral color morphs of Cylas formicarius as a genetic marker in its eradication using the sterile insect technique, the geographic distribution of the morphs was examined in the three main infested areas of Japan (Central Ryukyus, Southern Ryukyus, and Ogasawara Islands). In addition to the two known color morphs in Japan (bluish elytra (BE) and greenish elytra. (GE)), the piceous elytra (PE) was found mainly in the Southern Ryukyus at low frequency. The color morph frequencies varied between the Central and Southern Ryukyus and between locations within the two areas, while only BE was found in the Ogasawara Islands. PE would be useful for genetically marking sterile weevils to be released. Similarly, GE would be useful in some islands where GE is rarely or not found. BE frequencies on two islands in the Central Ryukyus (Amami and Okinawa) and two islands in the Southern Ryukyus (Miyako and Ishigaki) in 2006-2007 were higher than in 2002-2003.},
	keywords = {Cylas formicarius},
	isbn = {0003-6862},
	author = {Kawamura, Kiyohisa and Ohno, Suguru and Haraguchi, Dai and Kawashima, Shunji and Kohama, Tsuguo}
}
@article {13304,
	title = {PCR-RFLP Discrimination between Okinawa and Ogasawara Strains of the Sweet Potato Weevil, Cylas formicarius (Fabricius)},
	journal = {Japanese Journal of Applied Entomology and Zoology},
	volume = {53},
	number = {2},
	year = {2009},
	month = {2009},
	pages = {60-63},
	abstract = {To establish a simple method for discriminating Okinawa and Ogasawara strains of the sweet potato weevil, Cylas formicarius, about 560 bp of the internal transcribed spacer-1 (ITS-1) region of the ri- bosomal DNA (rDNA) of C. formicarius was collected from several is- lands of Okinawa Prefecture and Ogasawara Islands and analyzed by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). The 345 weevils collected in Okinawa and Ogasawara were discriminated correctly by the RFLP patterns with the restriction enzyme RsaI. The results suggest that C. formicarius originating from Ogasawara Islands is an effective genetic marking strain for an eradica- tion project using the sterile insect technique implemented by the Oki- nawa prefectural government.},
	keywords = {Cylas formicarius},
	isbn = {0021-4914},
	author = {Kawamura, Kiyohisa and Ohno, Suguru and Haraguchi, Dai and Kohama, Tsuguo}
}
@article {13305,
	title = {Genetic variation of sweet potato weevils, Cylas formicarius (Fabricius) (Coleoptera: Brentidae), in main infested areas in the world based upon the internal transcribed spacer-1 (ITS-1) region},
	journal = {Applied Entomology and Zoology},
	volume = {42},
	number = {1},
	year = {2007},
	month = {February},
	pages = {89-96},
	keywords = {Cylas formicarius},
	isbn = {0003-6862},
	author = {Kawamura, Kiyohisa and Sugimoto, Tuyosi and Kakutani, Koji and Matsuda, Yoshinori and Toyoda, Hideyoshi}
}
