Resistance management for sustainable agriculture and improved public health

Fall armyworm

Spodoptera frugiperda

The fall armyworm is a highly polyphagous migratory lepidopteran pest species.  It can colonize over 80 different plant species including many grasses, and crops such as alfalfa, soybean, sorghum, and corn. Eggs are laid in clusters of 50 or more in a single layer attached to foliage. Newly hatched larvae are pale green with black heads and during the second instar the head turns an orange-brown color. Fully grown larvae are 1.25 – 1.5 inches in length and vary in color from pale green to almost black, with a reddish-brown head.  They closely resemble true armyworm, and corn earworm larvae in appearance.

Key fall armyworm resources

References

Title Year Author(s) Publisher
Cross-resistance to purified Bt proteins, Bt corn and Bt cotton in a Cry2Ab2-corn resistant strain of Spodoptera frugiperda Vol. 73, pp. 2495-2503. DOI: 10.1002/ps.4644 2017 Yang F, Kerns DL, Head GP, Price P, Huang F Pest Management Science
Comparative analysis of the genetic basis of Cry1F resistance in two strains of Spodoptera frugiperda originated from Puerto Rico and Florida Vol. 146, pp. 47-52. DOI: 10.1016/j.jip.2017.03.013 2017 Camargo AM, Castenera P, Farinos GP, Huang F Journal Of Invertebrate Pathology
Susceptibility of Cry1F-maize resistant, heterozygous, and susceptible Spodoptera frugiperda to Bt proteins used in the transgenic cotton Vol. 98, pp. 128-135. DOI: 10.1016/j.cropro.2017.03.023 2017 Yang F, Kerns DL, Head GP, Brown S, Huang F Crop Protection
EPPO Bulletin PM 7/124 Spodoptera littoralis, Spodoptera litura, Spodopterafrugiperda, Spodoptera eridania Vol 45 (3), pp. 410-444 2015 EPPO European and Mediterranean Plant Protection Organization
Status of resistance to Bt maize in Spodoptera frugiperda: lessons from Puerto Rico Vol. 110(3):294-300. doi: 10.1016/j.jip.2012.04.007 2012 Storer NP, Kubiszak ME, Ed King J, Thompson GD, Santos AC Journal Of Invertebrate Pathology

The information provided is based on literature reviews and as such IRAC cannot guarantee or be held accountable for the accuracy of the reports.

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