INTEGRATED PEST MANAGEMENT Of WEST INDIAN SWEETPOTATO WEEVIL EUSCEPES POSTFASCIATUS (FAIRMAIRE) AND SWEETPOTATO WEEVIL CYLAS FORMICARIUS (FABRICIUS) In OKINAWA, JAPAN

<Author> Keiji Yasuda
<Year> 2000
<Journal> EXTENSION BULLETIN
<Volume> 493
<Issue>
<Pages> 8-14
<Notes> English

The West Indian sweetpotato weevil Euscepes postfasciatus (FAIRMAIRE) (WSPW) and the sweetpotato weevil, Cylas formicarius (FABRICIUS) (SPW), are the most destructive pests of sweetpotato all over the world (Jansson 1991), including the southwestern islands of Japan. This paper reports on the following; 1) Ecology of weevils in relation to pest management, 2) Population threshold at which control action should be taken, 3) Use of sex pheromones to control sweetpotato weevil, including a new type of visual lure, 4) A modified sex pheromone trap for infecting SPW with pathogenic fungi, Beauveria bassiana, 5) Integrated control measures.