First record of the dynastid beetle, Xylatrupes gideon L., on field corn
2018
Abenis, K.O. | Lit, I.L., Jr | Cassi-Lit, M.T. | Naredo, J.C.B.
The occurrence of the dynastid beetle, Xylotrupes Gideon L. on corn (Zea mays L.) in the field is reported for the first time based on specimens collected from Laoac, Pangasinan, and Bay, Laguna [Philippines] during a series of sampling of corn associated insects. This species, more commonly known in the Philippines as the elephant beetle, is better known as a minor pest of the coconut and other palms. The adult males and females were observed feeding on nodes of corn plants in the late vegetable and early reproductive stages, regardless of cultivar and whether they are conventional or Bt hybrids. There was no coconut trees in the host range of the said species, as well as in lists or compendia of documented destructive insects in corn. The nature of damage included chewed portions of the nodes and some broken tassels and/or panicles of the inflorescences.
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