Responses of Coffee berry borer, Hypothenemus hampei (Ferrari)(Coleoptera: Scolytidae), to vertical distribution of methanol: ethanol traps

Abstract

-Captures of the coffee berry borer (CBB) Hypothenemus hampei (Ferrari) were assessed in traps in the fi eld. IAPAR designed traps [plastic bottles (2 L) lured with methanol:ethanol (1:1) in a vessel] were placed either at 0.5, 1.0 and 1.5m high from the ground or simultaneously tested in the 2004 fructifi cation season. Traps placed at the three heights trapped 5.5 times more CBB than the others, mostly at the traps placed at 0.5 m (75%). Treatments using the IAPAR designed trap placed at 1.2 m high; IAPAR trap with a white plastic plate above (IAPAR modifi ed I) at 1.2 m high; IAPAR at 0.5 m high and two additional vessels at 1.0 and 1.5m high (IAPAR modifi ed II) and T-163 trap [three red plastic cups (300 ml) and a red plastic plate as a cover] lured with M:E (1:1) at 1.2m height were compared in the vegetative (2005) and fructifi cation (2006) periods. IAPAR modifi ed II (dispenser vessels placed at 0.5, 1.0 and 1.5 m) trapped more beetles than the remaining types (2.72 times more beetles than IAPAR design); and IAPAR modifi ed I traps trapped more beetles than T 163 and IAPAR traps in the vegetative period. In the reproductive period, IAPAR modifi ed II trapped less beetles than IAPAR and IAPAR modifi ed I. In 2007 vegetative season, IAPAR modifi ed II trap were compared with IAPAR trap and trapped 2.8 times more beetles. The positive responses to a vertical distribution of the volatile attractants in the vegetative period of the planting allow the development of more effi cient trapping systems for CBB.

Sun vs. shade affects infestation, total population and sex ratio of the coffee berry borer (Hypothenemus hampei) in Puerto Rico

“…We placed six traps per plot, four at the ends and two in the center; all traps were hung 1.5 m above the ground. Traps were made from 2 L plastic soft drink bottles, the outer surface painted red with five windows (12 X 3.0 cm) cut 10 cm above the bottom (Uemura-Lima et al, 2010). A mix of ethanol-methanol…”

Integrated Pest Management of Coffee Berry Borer: Strategies from Latin America that Could Be Useful for Coffee Farmers in Hawaii

“…The effectiveness of traps is optimized by color (red or white), the mixture of alcohols (ethanol: methanol; in a 3:1 or 1:1 ratio), and location (0.5–1.5 m high). However trap efficiency is influenced by other factors, including weather conditions, and pest infestation levels [ 35 , 50 , 52 , 86 , 87 , 88 , 89 , 90 ].…”

Integration of Entomopathogenic Fungi into IPM Programs: Studies Involving Weevils (Coleoptera: Curculionoidea) Affecting Horticultural Crops

“…Although this study showed the potential for combining EPF with attractants, many others have failed to provide good control of adult weevils in the field. In the case of H. hampei , poor trap design [ 182 ], attractant compound selection, and inappropriate timing in relation to the emergence period of the adults [ 115 , 183 ] contributed to the failure of this technique. Pereira et al [ 183 ] found that methanol/ethanol mixture is not specific to H. hampei and many scolytids including “false H. hampei ”were also captured in the trap.…”