ASSESSMENT OF COFFEE BERRY BORER, HYPOTHENEMUS HAMPEI FERRARI (COLEOPTERA, CURCULIONIDAE) USING LOCALLY MADE BAITING TRAP IN MAJOR COFFEE PRODUCING AREAS OF ETHIOPIA
Keywords:
Baiting trap, Ethanol: Methanol, Hypothenemus hampei, Semiochemical.Abstract
Coffee represents the major source of revenue for foreign
exchange and income source for households of large number of families in
Ethiopia. However, coffee is facing a great challenge by coffee berry borer
(CBB) [Hypothenemus hampei Ferrari (Coleoptera, Curculionidae)]. The
attention given to control this insect-pest is very low compared with other
African countries. Controlling the coffee berry borer using conventional
chemical method is difficult due to its cryptic nature in its life cycle. Mass
trapping of the insect using baiting trap method is the most promising and
relevant one. This study were conducted in selected and representative coffee
producing areas of Tepi, Limu Goma and Mizan-Aman. A total of 32 red
color local baiting trap was prepared and lured with Ethanol:Methanol (E:M)
mixture (1:1, 1:2, 1:3 and control) and releasing rate of 509.9 ± 0.06, 577.3 ±
0.02 and 580.3 ± 0.02 mg day-1
, respectively. Traps were attached to wood
stakes branches in a completely randomized block design (CRBD), 12 m
within the raw, 15 m between blocks and 1.20 m from the ground. The
efficiency of the attractant (E:M) mixtures at Tepi-Baya II, Jimma zone
(Limu-Goma II) and Mizan-Aman showed no significant difference, but all
were significantly different from the control (p<0.001). The percentage of
captured CBB with E:M (1:1, 1:2 and 1:3) were 427 (93%), 413 (98.6%) and
416 (95.2%) at Tepi-Baya II; 97 (89%), 115 (100%) and 90 (93.8%) at LimuGoma II, and 137 (86.7%), 122 (97.6%) and 98 (94.2%) at Mizan-Aman,
respectively. Non-target coffee berry borer (NCBB) were not preferably
attracted by 1:1 and 1:3 than 1:2 E:M mixture across the localities. None of
the controls captured the NCBB beetles at any of the localities. The study
indicated that this trap can be used in different localities for trapping of the
female CBB as a tool to reduce the population level of CBB.