Identification of efficient attractant forthe management of shot hole borer, Xylosandrus compactus infesting coffee Roobakkumar A.*, Reddy P. Krishna, Uma M. S., Tintumol K., Seetharama H.G., Rao N. Surya Prakash Entomology Division, Central Coffee Research Institute, Coffee Research Station-577 117, Chikkamagaluru, Karnataka, India *E-mail- roobakkumar@gmail.com
Online published on 26 June, 2023. Abstract The shot hole borer (SHB), Xylosandrus compactus (Eichhoff) (Coleoptera: Curculionidae: Scolytinae), is an emerging pest of Robusta coffee in India. Traps with attractants are commonly used to capture the ambrosia beetles for purposes of monitoring, studying population dynamics, predicting outbreaks, and mass trapping to reduce damage. The relative attractiveness of several common attractants and the influence of their concentration were evaluated in the field against X. compactus using Broca traps in this study. The tested attractants exhibited clear differences in attractiveness and the preliminary field studies at coffee plantations revealed that absolute ethanol attracted more shot hole borer adults than coffee twig extracts, distillery ethanol, and ethanol methanol combinations. The number of beetles trapped varied in different places during multi-location field trials, but in general, 50% of absolute ethanol-baited traps captured the highest number of beetles in all the locations. This study demonstrates 50% absolute ethanol can be used as an effective attractant for coffee shot hole borer and enables a cost-effective option for the control of X. compactus in coffee. Top Keywords Coffee, Ambrosia beetle, Xylosandrus compactus, Ethanol, Mass trapping. Top |