Army Cutworm, Miller Moth

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Pest Profile Whitney Cranshaw, Colorado State University, Bugwood.org Frank Peairs, Colorado State University, Bugwood.org Common Name: Army Cutworm, Miller Moth Scientific Name: Euxoa auxiliaris Order and Family: Lepidoptera: Noctuidae Size and Appearance: Length (mm) Appearance Egg Larva/Nymph 40mm Light brownish-grey head with pale brown spots. Body is pale grayish with white splotches and brown-tinged top line. Lower portion of body has darker, top-lateral stripes and an indistinct band of white splotches. Adult Forewings are grey or light 38mm – 50mm brown with variable wavy dark and light markings and a distinctive kidney-shaped marking. Hindwings are light gray-brown with whiteish fringe. Pupa (if applicable) Dark brown, bullet shaped case 12mm – 22mm found in soil. Type of feeder (Chewing, sucking, etc.): Chewing (larvae), Siphoning (adult) Host plant/s: The army cutworm overwinters as partially grown larvae in the soil, and feeds on weeds and grasses. In the spring, the larvae feed on young plants and crops. Many turf, forage, ornamental, and vegetable plants are attacked, particularly cabbage and tomato transplants and corn seedlings. Wheat, alfalfa, sugarbeets, and canola are also host plants of this insect. Description of Damage (larvae and adults): Early signs of army cutworm activity are indicated by cut plants. The larvae cut off small plants at or near the soil surface and feed on them during the night. Army cutworm injury appears as semi-circular areas eaten from the edge of the leaf, or as holes chewed through the leaf. In field crops, damage usually appears as skips or sections of rows where all plants are missing. References: Army Cutworm, Euxoa auxiliaries (n.d.). Oklahoma State. http://entoweb.okstate.edu/ddd/insects/armycutworm.htm Cranshaw, W. (2004). Garden Insects of North America: The Ultimate Guide To Backyard Bugs. Princeton, New Jersey: Princeton University Press. Cranshaw, W. (2010, January 5). Army Cutworm. Retrieved January 10, 2016, from Colorado State University: http://www.colostate.edu/Dept/CoopExt/4dmg/Pests/cutworm.htm Whitworth, J., Haag, L., & Falk Jones, J. (2014, March 21). Army cutworms in wheat, alfalfa, and winter canola. Retrieved January 10, 2016, from Kansas State University Research and Extension: https://webapp.agron.ksu.edu/agr_social/eu_article.throck?article_id=189 .

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Entomofauna Ansfelden/Austria; Download Unter
©Entomofauna Ansfelden/Austria; download unter www.biologiezentrum.at Entomofauna ZEITSCHRIFT FÜR ENTOMOLOGIE Band 28, Heft 28: 377-388 ISSN 0250-4413 Ansfelden, 30. November 2007 Phytophagous Noctuidae (Lepidoptera) of the Western Black Sea Region and their ichneumonid parasitoids Z. OKYAR & M. YURTCAN Abstract Eleven agricultural and silviculturally important species of Noctuidae and their parasitoids were determined in 33 localities from the Western Black Sea region between 2001 and 2004. The ichneumonid biological control agents Enicospilus ramidulus, Barylypa amabilis and Itoplectis alternans were obtained by rearing the host larvae. K e y w o r d s : Lepidoptera, Noctuidae, Hymenoptera, Ichneumonidae, parasitoidism, Western Black Sea Region, Turkey Zusammenfassung 11 land- und forstwirtschaftlich bedeutende Noctuidae-Arten einschließlich ihrer Parasitoide aus 33 Standorten des Gebietes des westlichen Schwarzen Meeres wurden im Zeitraum 2001 bis 2004 studiert. Ichneumonidae der Arten Enicospilus ramidulus, Barylypa amabilis and Itoplectis alternans konnten durch Aufzucht der Wirtslarven festgestellt werden. 377 ©Entomofauna Ansfelden/Austria; download unter www.biologiezentrum.at Introduction The Noctuidae is the largest family of the Lepidoptera. Larvae of some species are par- ticularly harmful to agricultural and silvicultural regions worldwide. Consequently, for years intense efforts have been carried out to control them through chemical, biological, and cultural methods (LIBURD et al. 2000; HOBALLAH et al. 2004; TOPRAK & GÜRKAN 2005). In the field, noctuid control is often carried out by parasitoid wasps (CHO et al. 2006). Ichneumonids are one of the most prevalent parasitoid groups of noctuids but they also parasitize on other many Lepidoptera, Coleoptera, Hymenoptera, Diptera and Araneae (KASPARYAN 1981; FITTON et al. 1987, 1988; GAULD & BOLTON 1988; WAHL 1993; GEORGIEV & KOLAROV 1999).
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