1. National Agriculture and Food Research Organization; Kyushu Okinawa Agricultural Research Center; Itoman Branch; Makabe 820; Itoman Okinawa 901-0336 Japan
2. Okinawa Prefectural Plant Protection Center; Maji 123; Naha Okinawa 902-0072 Japan
3. Okinawa Prefectural Agricultural Research Center; Makabe 820; Itoman Okinawa 901-0336 Japan