Analysis of sounds produced by Rhynchophorus ferrugineus and Oryctes elegans larvae and adults in date palm trees and offshoots in Saudi Arabian commercial orchards

Sounds produced by larval and adult palm tree pests in Saudi Arabian date palm orchards were recorded using commercially available insect acoustic detection instruments. The trees and offshoots were inspected for presence/absence of insects and other visual signs of infestation. Subsequently, the spectral and temporal patterns of the recorded signals were analyzed and compared with those of other large insects that have been recorded previously.