Bionomics of the shoot borer, Cryptophlebia ombrodelta, damaging Erythrophleum trees in Vietnam (Lepidoptera: Tortricidae: Olethreutinae)

Bionomics of the shoot borer, Cryptophlebia ombrodelta (Lower)(Tortricidae: Olethreutinae), in Vietnam timber plantations of Erythrophleum fordii (Fabaceae/Leguminosae) trees are presented. Field surveys in 2022 found C. ombrodelta damage to E. fordii in the three provinces, Quang Ninh, Bac Giang, and Vinh Phuc, with a damage incidence (P%) of 16.6-61.5% and an average damage index (DI) of 0.58-2.03. Plantations at 1-year-old stage were most severely damaged, P% and DI were 50.6-61.5% and 1.79-2.03, respectively.