![]() ^ "Armyworm ( Spodoptera mauritia acronyctoides)".Australian Caterpillars and their Butterflies and Moths. " Spodoptera mauritia (Boisduval, 1833) Lawn Armyworm". ^ Herbison-Evans, Don & Crossley, Stella (27 April 2013)."Bats as potential suppressors of multiple agricultural pests: A case study from Madagascar". Andriatafika, Zo Nair, Abhilash Cabeza, Mar (1 January 2019). ^ Kemp, James López-Baucells, Adrià Rocha, Ricardo Wangensteen, Owen S.(Noctuidae: Lepidoptera) during development". "The excretion of urea by the larvae of Spodoptera mauritia Boisd. "Rice Swarming Caterpillar ( Spodoptera mauritia): Life Cycle, Nature and Control". Taylor and Francis – via Biodiversity Heritage Library. The Fauna of British India, Including Ceylon and Burma: Moths Volume II. ^ " Spodoptera mauritia (paddy swarming caterpillar)".^ " Spodoptera mauritia, (Boisduval, 1833)".acronyctoides Guenée, 1852 (Oriental tropics, Australia, Pacific tropics, Japan) The outbreak during Kharif, 2016 in Assam has been considered as one of the most devastating outbreaks in the state of Assam, India with an infestation in more than 34,650 ha area of rice across 28 districts.An outbreak has been reported in Dibrugarh district of Assam, India during Kharif, 2012.In Sri Lanka, the heavy outbreaks were recorded twice from the country, first in 1904 and then in 1920, where Jaffna paddy cultivations were destroyed by the caterpillars.In 1983, nursery beds were devastated by the caterpillars, reduced the total rice production.This induced transplanting programs throughout the country and re-sowing of seedlings into the field highly susceptible to the attack. In 1981, paddy nurseries near marshy areas were severely affected by armyworm in Indonesia.These attacks vanished 20% of total rice production in Malaysia. In 1969, small outbreaks of less than 200 acres have been reported in the Sabah region of Malaysia, but in 6,000 square miles of outbreak was recorded from Sarawak.Moths traps like wing traps and unitraps can also used to collect adults. The nematode Steinernema carpocapsae and usage of viruses like Nucleopolyhedrovirus are also effective. This spider has the ability to spray a pheromone similar to the female moth, to attract male moths. Adults can be eliminated by introducing bolas spiders to the fields. Hand picking and other mechanical methods are used to reduce infection. Commonly the entire paddy crop dies within few days due to swarming attack. Plants attacked by caterpillars have skeletonized leaves, shot holes, and dieback stems. Spodoptera mauritia has been found in the feces of the Greater tube-nosed bat. Unlike other insects, armyworm caterpillars of their sixth instar do not excrete uric acid, instead they excrete urea as nitrogenous wastes. They are considered one of the major international agricultural pests on crops and pastures. The larvae feed on various grasses, including rice, wheat, Cynodon, Pennisetum clandestinum, Sorghum bicolor, Oryza sativa, and trees such as Casuarina equisetifolia. Hindwings opalescent and semi- hyaline white, with a dark marginal line. There is a white patch often can be seen between orbicular and reniform and a dark patch on the central marginal area. Submarginal line whitish and irregularly waved. ![]() The orbicular small and ochreous, whereas reniform blackish. Forewings with sub-basal, antemedial and postmedial double waved lines indistinct. It is dark grey brown with a rusty tinge on its body. It is widespread from the Red Sea to India, Myanmar, Sri Lanka, Malaya to Australia and widespread in the Pacific Islands, including the Solomons, New Hebrides, Fiji, Samoa, Hawaii, the Society Islands, Austral Islands, Marquesas and the Marshall Islands. Able to eat many types of food, it is a major pest throughout the world. The species was first described by Jean Baptiste Boisduval in 1833. Spodoptera mauritia, the lawn armyworm or paddy swarming caterpillar, is a moth of the family Noctuidae. Agrotis bisignata Walker, 1865 (preocc.Spodoptera acronyctiformis Guenée, 1852.
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