Incidence of banana top virus and fusarium wilt diseases of banana in La Union [Philippines]
2009
Esguerra, A.V. | Fernandez, H.V., Don Mariano Marcos Memorial State Univ-NLUC, Bacnotan, La Union (Philippines)
Survey on the incidence of BBTV and fusarium wilt disease of banana was done in six municipalities of La Union. Enlisted and interviewed were 35 banana growers who served as respondents of the study. Demographic profile and some banana cultural management practices of the respondents were determined through survey questionnaire. A disease survey was likewise conducted to determine the number and variety of banana plants infected with BBTV and fusarium wilt diseases and their percentage incidence as well considering three banana cropping cycles, i.e., in the first cycle tissue cultured seedlings were planted and in the second and third cycles suckers from the first cycle were used. Disease symptomatology and diagnostic confirmation were likewise undertaken to form part of the disease routine laboratory procedures. Regardless of banana varieties, BBTV incidence ranges 0-6%, 0-50%, and 0-90% during the 1st, 2nd, and 3rd cropping cycles, respectively. Lakatan and Bungulan were the most susceptible banana varieties with 80-90% BBTV incidence during the 3rd cycle. Latundan was the most susceptible banana variety to fusarium wilt with 50% incidence during the 3rd cycle. The least susceptible varieties to BBTV were señorita and Cardaba. Señorita and FHIA varieties were the most resistant to fusarium wilt. Banana suckers from tissue cultured banana are most prone to BBTV.
显示更多 [+] 显示较少 [-]