The lethal concentration lc50 required to kill 50% of the population of deltamethrin to gossypolfed spodoptera exigua larvae was 2. Beet armyworm, spodoptera exigua hubner, 1808 lepidoptera, noctuidae, and flight dynamics data in the sombor region. Noctuidae, were studied under laboratory conditions. Noctuidae is one of the most important insect pests on many crops, and it is distributed worldwide. Organism names see more details beet army worm, lucerne lucerne subject category. Because it is a tropical insect, and lacks a diapause mechanism, it can overwinter successfully only in warm areas or in greenhouses. Spodoptera litura an overview sciencedirect topics. Beet armyworm occasionally bears a spot laterally, but if present it occurs on the mesothorax, not on the first abdominal segment. New spodoptera exigua cell lines susceptible to spodoptera. It is also known as the asparagus fern caterpillar. Spodoptera exigua is known to feed on more than 50 plant species, which are distributed across 10 plant families around the world. Nuclear polyhedrosis virus as biological control agent of spodoptera.
The journal features articles related to biology as a whole, ethical issues in biology, and teaching strategies for classrooms, labs, and fieldwork. Identification and characterization of candidate chemosensory. Spodoptera exigua wikibooks, open books for an open world. Noctuidae on various host plants volume 96 issue 6 a.
Biology and nutrition of spodoptera frugiperda lepidoptera. Smith, has been classified as a sporadic pest due to its migratory behavior. Spodoptera exigua, an insect known as the beet armyworm, originally came from southeast asia. Spodoptera litura is also known as the oriental leafworm moth, cluster caterpillar, cotton leafworm, tobacco cutworm, tropical armyworm, taro caterpillar, tobacco budworm, rice cutworm, and cotton cutworm. Effects of four host plants on biology and food utilization.
Beet armyworm behaviour was observed in various crops. Spodoptera exigua laphegoverview eppo global database. A novel cry9aa with increased toxicity for spodoptera exigua hubner. Duration of prepupal, pupal, and larvaadult period, pupal weight, sex ratio, survival, larva feeding preferences, oviposition preferences, and nutritional. Interspecific interaction between spodoptera exigua. The roughly 30 species are distributed across six continents. Spodoptera exigua laphegdocuments eppo global database. The incubation period of spodoptera exigua hubner was not influenced by the host plant, whereas larval. The most common originhost combinations are listed here. Contact individual photographers for permission to use for any purpose. This moth is found in asia, with some specific problematic pest population reports occurring in cambodia, hong kong, india, the pacific islands, guam, american.
The american biology teacher is designed to support the teaching of k16 biology and life sciences. It is also known as the asparagus fern caterpillar, and the adult moth is known in the uk where it is an immigrant and not known to breed as the small mottled willow. A new distribution map is provided for spodoptera exigua spodoptera exigua subject category. Effects of four host plants, tobacco, chinese cabbage, cowpea and sweet potato, on larval and pupal development and survival, and longevity and fecundity of adults of spodoptera litura f lepidoptera. The beet armyworm spodoptera exigua is one of the most wellknown agricultural pest insects. Beet armyworm, spodoptera exigua hubner lepidoptera.
Effects of entomopathogenic fungi on the biology of spodoptera. Oct 26, 2009 spodoptera exigua, commonly known as rosquilla verde in spain or gusano soldado in latin america, and beet armyworm in the usa and other english speaking countries. Jun 18, 20 the beet armyworm, spodoptera exigua hubner, is a serious pest worldwide that causes significant losses in crops. Spodoptera littoralisis a destructive pest of subtropical and tropical agriculture, and has the potential to be a serious pest of glasshouse crops in northern europe.
Spodoptera exigua, commonly known as rosquilla verde in spain or gusano soldado in latin america, and beet armyworm in the usa and other. Noctuidae, on glanded and glandless stoneville 2 cotton, gossypium hirsutuml. Documents about spodoptera exigua lapheg eppo global database. Arthropod biology feeding and life history of spodoptera. Extensive crop damage commonly accompanies infestations by this insect. As these species have the potential to cause economic damage in other crops, we. The purpose of this handout is to guide you in the dissection, screening, and identification of moths collected in spodoptera surveys. Spodoptera exigua, the beet armyworm, is a small pale gray brown noctuid moth fw length 11 16 mm with a fairly nondescript pattern that includes a pale round obicular with a gray to orange central ocellus and translucent white hindwings with a dark veins and dark marginal band at the anterior outer margin. Noctuidae from four districts of the southern punjab, pakistan to four conventional and six new chemistry insecticides.
Establishment of eight cell lines from neonate larvae of tortricids lepidoptera, and their several characteristics including susceptibility to insect viruses. Spodoptera exigua larvae had a higher growth rate, indicator for. Arthropod biology feeding and life history of spodoptera exigua lepidoptera. Yoshiaki noma, yoshinori asakawa, in comprehensive natural products ii, 2010. Biokids kids inquiry of diverse species, spodoptera. W 600 m of altitude, summer, average temperature of 23 c, maximum temperature of 28 c, minimum temperature of 20 c, 2 mm precipitation, in londrina, pr, brazil.
Transcriptome analysis and screening for potential target. The beet armyworm or small mottled willow moth spodoptera exigua is one of the bestknown agricultural pest insects. Biokids kids inquiry of diverse species, spodoptera exigua. Forewing gray with inconspicuous gray or white markings. Adults emerge during any warm period in the southern united states. Spodoptera littoralisis a destructive pest of subtropical and tropical agriculture, and has the potential to be a serious pest of glasshouse crops in. Newly hatched larvae were fed soybean, cotton, maize, wheat, and oat leaves.
New spodoptera exigua cell lines susceptible tospodoptera exigua nuclear polyhedrosis virus. Egg clusters are usually deposited on the underside of leaves. Developmental control of a lepidopteran pest spodoptera. Unfortunately, genetic resources for the beet armyworm is extremely scarce. The location of feeding was more concentrated towards. Early instar larvae are gregarious, feeding as a group and skeletonizing leaves. The purpose of this handout is to guide you in the dissection, screening, and identification. Noctuidae, is an economically important insect pest known to attack various agricultural crops and is widely distributed in the tropical and temperate zones of asia, australasia, and pacific islands. Note round, white orbicular spot with gray dot in the center. Pdf incidence and biology of beet armyworm, spodoptera exigua.
It is now found around the world, except for south america. This species does not enter diapause, so it migrates from warmer climates such as southern florida, caribbean islands, southern texas, mexico, and coastal areas of southern georgia, alabama, mississippi, and louisiana, northward across the united states annually. Beet armyworm is a tropical insect, native to southeast asia. General information about spodoptera exigua lapheg eppo global database. But some records are also based on passive transport as with agricultural products. In south punjab, pakistan, it causes damage to the economically. It is native to asia, but has been introduced worldwide and is now found almost anywhere its many host crops are grown. Identification and characterization of candidate chemosensory gene families from spodoptera exigua developmental transcriptomes naiyong liu, ting zhang, zhanfeng ye, fei li, shuanglin dong college of plant protection, nanjing agricultural university, nanjing 210095, china key laboratory of integrated management of crop diseases and pests. Partly grown larva of the beet armyworm, spodoptera exigua hubner. Disruption of spodoptera exigua larval development by silencing chitin synthase gene a with rna interference volume 98 issue 6 x. Incidence and biology of beet armyworm, spodoptera exigua in chickpea in andhra pradesh. Identification and genomic analysis of a second species of nucleopolyhedrovirus isolated from mamestra configurata. Spodoptera exigua often very similar but paler dorsally than laterally helicoverpa spp.
Spodoptera exigua is native to the tropics and subtropics of almost the entire world. Monitoring of resistance in spodoptera exigua lepidoptera. To improve these resources we sequenced the transcriptome of s. Trials were performed under controlled laboratory conditions 25 2 c, 70 10 % rh, and a photoperiod of 14h10 l. Because it is a tropical insect, and lacks a diapause mechanism, it can. Polyphagous larva, sometimes a pest, reported on asparagus in florida. As adult moths, beet armyworms are extremely mobile.
A manual of the insects of the hawaiian islands, including enumeration of the species and notes on the origin, distribution, hosts, parasites, etc. Beet armyworm moth spodoptera exigua hubner, 1808 family. Steps for the dissection of male spodoptera moths lepidoptera. Spodoptera exigua, an insect known as the beet armyworm, is thought to have. Pest risk assessment netherlands food and consumer product. Developmental control of a lepidopteran pest spodoptera exigua by ingestion of bacteria expressing dsrna of a nonmidgut gene. Effects of entomopathogenic fungi on the biology of. Spodoptera fulgens geyer spodoptera pygmaea rambur spodoptera junceti zeller spodoptera caradrinoides walker spodoptera flavimaculata harvey spodoptera sebghana astaut spodoptera venosa butler biology and distribution. Hindwing translucent white with gray veins and shading at. Using chitin synthase gene a sechsa as the target gene, which is expressed in the cuticle and tracheae of the lepidopteran pest spodoptera exigua, we showed that the growth and development of s.
Li l, donly c, li q, willis lg, keddie ba, erlandson ma, theilmann da title. We studied spodoptera frugiperda development using different food sources in the laboratory and field. In the british isles, where it is an introduced species and not. Vip3a, a novel bacillus thuringiensis vegetative insecticidal protein with a wide. Biotransformation of acyclic, monocyclic, and bicyclic monoterpenoids by various bacteria, fungi, insect larvae, such as spodoptera litura, and mammals, such as rabbits and possums, and human and rat cytochrome enzyme is summarized. As seen in sesquiterpenoids, these organisms introduce oxygen atom at their allylic. To improve these resources we sequenced the transcriptome. Pnw moths spodoptera exigua pacific northwest moths. Promod kumar shakya, masarrat haseeb and uzma manzoor department of plant protection, faculty of agricultural sciences, aligarh muslim university, aligarh, uttar pradesh, india email.
Spodoptera exigua an overview sciencedirect topics. Reduction in feeding damage to the crops, however, was more pronounced when the larvae were. Assessment of resistance risk in spodoptera exigua hubner lepidoptera. Their ability to fly long distances has enabled them to greatly expand their geographic range outside of asia. Acmnpv expressing a stabilized form of jhe causes lower feeding damage to tomato leaf compared to m. Noctuidae 4 beet armyworm larvae are susceptible to neem products prabhaker et al. Larvae are polyphagous, and approximately 250 hosts are listed in pestid. Noctuidae on various host plants article pdf available in bulletin of entomological research 966. Moreover, spodoptera exigua penetrates as an uncommon migrant far north and was found for example in germany many times. Summary of losses from insect damage and costs of control in georgia, 1988. Disruption of spodoptera exigua larval development by. Eggs can be killed with petroleum oil, and both eggs and young larvae can be controlled with foliar applications of 5% cottonseed oil, but this concentra. Spodoptera exigua is frequently intercepted from various countries throughout the world, although mexico is the most common origin, accounting for 75% of the total number of interceptions. Kevin kavanagh, in reference module in life sciences, 2017 3 spodoptera exigua s.