Pacific Pests and Pathogens Pacific Pests, Pathogens & Weeds - Mini Fact Sheet Edition

Rice (maize) armyworm (331) Print Fact Sheet


Common Name

Paddy armyworm, rice armyworm, oriental armyworm, rice ear-cutting caterpillar.

Scientific Name

Mythimna separata; previously known as Pseudoaletia separata.

AUTHOR Grahame Jackson
Information from CABI (2015) Mythimna separata (paddy armyworm) Crop Protection Compendium (; and from Paddy armyworm (Mythimna separata) Plantwise Knowledge Bank ( Photo 1 Gross L (2006) Plants tell caterpillars when it's safe to forage. PLoS Biol 4(6): e194. ( Photos 2-5 MAF Plant Health & Environment Laboratory (2011) Oriental armyworm (Mythimna separata) PaDIL - (

Produced with support from the Australian Centre for International Agricultural Research under project PC/2010/090: Strengthening integrated crop management research in the Pacific Islands in support of sustainable intensification of high-value crop production, implemented by the University of Queensland and the Secretariat of the Pacific Community.

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