Ionotropic receptor ir, a subfamily of the ionotropic glutamate receptor family, has been identified as one of crucial chemoreceptor superfamilies, which mediates the sensing of odors andor tastants, and serves as nonchemosensory functions. Some plant extracts have been used as a mixture to control insect pests and improve productivity. The roughly 30 species are distributed across six continents. Linking life table and predation rate for biological. The study on potential of six isolates of slnpv which are originally from east java to control s. Spodoptera litura has already developed resistance to several organic pesticides resulting severe crop losses singh and singh, 1998. After egg hatching, castor ricinus communis leaves were provided for larval feeding till the pupal stage under laboratory condition 28 2. Biological effects of natural products against spodoptera. Laboratory studies on the influence of bacterial spodoptera. Insecticidal compound isolated from syzygium lineare wall.
The spodoptera litura genome elucidates its polyphagy, high. The spread of this pest has led to the continuous usage of insecticides on crops. Army worm spodoptera litura belongs to order lepidoptera s. The insecticidal activity of the compound was assessed against fourth instar larvae of spodoptera litura. The life cycle of spodoptera litura includes larval, pupal and adult stages.
Culture was maintained in the laboratory with the castor leaves as a food source. A new crystal compound 2,5diacetoxy2benzyl4,4,6,6tetramethyl1,3cyclohexanedione was isolated from the leaves of syzygium lineare. A group of asian researchers first proposed a genome project for the tobacco cutworm, spodoptera litura lepidoptera, noctuidae, in 20, drawn to this species as a massively destructive agricultural pest across asia. Developmental and reproductive biology of spodoptera litura. Host plant survey for two years from three different locations in cotton. Spodoptera litura fabricius is a cosmopolitan polyphagous insect pest ofmanyfood crops and tobacco. A new continuous cell line from larval hemocytes of spodoptera litura f.
General information about spodoptera litura prodli. Noctuidae, were studied under laboratory conditions 26 c, 6080% rh, as was the utilization of the four host plants and adaptation on. Temperaturedependent simulation of spodoptera litura phenology. Responses of the cutworm spodoptera litura lepidoptera. Noctuidae on some of its major weed hosts find, read and cite all the research you. Larva feeds on the underside of leaves causing feeding. Spodoptera litura, also known as tobacco cutworm is a serious pest of many crops. Sequence analysis of the spodoptera litura multicapsid. Media in category spodoptera litura the following 31 files are in this category, out of 31 total. Rearing of spodoptera litura fabricius on different. Spodoptera litura is a notorious leaf feeding insect pest of more than one hundred plants around the asiapacific region.
It is a native of asia and was first detected in hawaii. All photos included on this page can only be used for educational purposes. Developmental and reproductive biology of spodoptera. May 22, 2018 the ability to sense and recognize various classes of compounds is of particular importance for survival and reproduction of insects. It is a serious pest of various economically important crops such as cotton, tomato, groundnut, chilli, tobacco, caster, okra and pulses etc.
Chaudhari2 abstract the susceptibility of different stages of spodoptera litura larvae to npv was determined by bioassay. It is a serious polyphagous pest in asia and oceania, from the borders of north africa to japan and new zealand armes et. The agestage specific survival rate s xj, where x is the age and j is the stage. No mating took place on the night of emergence and maximum mating response occurred during the second night after emergence. For publication in journals, books or magazines, permission should be obtained from the original photographers with a. Controlling spodoptera litura in the separate customs. Screening of cultivars and wild types of red gram for proteinase inhibitors active towards achaea janata and spodoptera litura.
Effect of some flavonoids on survival and development of. Among susceptible vegetable crops are asparagus, bean, beet, broc. To examine the responses of the secondary lepidopteran pest spodoptera litura to two bacillus thuringiensis bt corn hybrids 5422bt1 event. Spodoptera litura can be identified by the shape of the structures on the inner surface of the valve. Rearing of spodoptera litura fabricius on different artificial diets and its parasitization with trichogramma chilonis ishii ahmadurrahman saljoqi,1 riaz ul haq,1 ehsanulhaq,2 javed khan2 and ghulam ali2 1department of plant protection, faculty of crop protection sciences, the university of agriculture. Development of microplitis bicoloratus spodoptera litura and. As in most other parts of the tropic, these armyworms are subjected to a disease caused by a spodoptera litura nucleopolyhedrovirus spltnpv infection in the field kalshoven 1981. Effects of three spodoptera litura control strategies on. 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. A new continuous cell line from larval hemocytes of.
Spodoptera litura is a polyphagous insect which defoliates almost 120 economically important plant species all over the world 1. Noctuidae includes species that cause damage to a wide variety of important crops such as maize, cotton, rice, and soybean, among others gordy et al. Identification notes for spodoptera litura and spodoptera littoralis. Spodoptera litura, otherwise known as the tobacco cutworm or cotton leafworm, is a nocturnal. Larvae generally do the most damage, stripping plants of leaves during feeding. Biology and nutrition of spodoptera frugiperda lepidoptera. Host plants of leaf worm, spodoptera litura fabricius lepidoptera. To assess the potential use of this parasitoid as a biological control agent, the reproductive schedule, fecundity and functional response of m. Comparison with autographa californica mnpv and spodoptera exigua npv by restriction. Spodoptera litura wy cooperative agricultural pest. The spodoptera moths are found primarily active during night and due to its high mobility, female ovipositing on a wide range of host plants, which promotes or even ensures survival of s. Spodoptera litura, otherwise known as the tobacco cutworm or cotton leafworm, is a nocturnal moth in the family noctuidae. As in most other parts of the tropic, these armyworms are subjected to a disease caused by a spodoptera litura nucleopolyhedrovirus spltnpv infection in the field. Spodoptera litura is an obiquitous, polyphagous, multivoltine, lepidopteron pest that feeds on 112 cultivated crops all over the world moussca et al.
The potential of various isolates of spodoptera litura. Linking life table and predation rate for biological control. Spodoptera litura prodliphotos eppo global database. Pdf on jan 1, 2007, sushilkumar and others published biology of spodoptera litura fabricius lepidoptera. Genomebased identification and analysis of ionotropic. 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. Pm 7124 1 spodoptera littoralis, spodoptera litura. The egg masses of spodoptera litura were counted with the aid of a hand lens 10x and egg mass pre counted 100 was dipped in 0. Based on the preliminary screening, the effective plant extracts were further tested at a concentration of 0. Lethal doses of chlorfluazuron, when applied topically to 5th instars or pupae of s. The ability to sense and recognize various classes of compounds is of particular importance for survival and reproduction of insects. Genus spodoptera 1spodg species spodoptera litura prodli contact eppo. Pathogenicity and characteristics of spodoptera litura. Spodoptera exigua helicoverpa armigera are significant polyphagous pests in the tropical and subtropical regions of cultivated crops 10.
Threshold temperatures and thermal requirements for the development of spodoptera litura lepidoptera. Noctuidae, though, commonly known as tobacco cutworm, is not restricted to tobacco alone, but, feeds on more than 120 host plants belonging to 44 familiesqin et al. Spodoptera litura fabricius is a major vegetable pest that is widely distributed throughout tropical, subtropical and temperate regions. Cotton cutworm spodoptera litura cotton cutworm spodoptera litura is an insect pest of many important food plants. Sep 15, 2015 the tobacco cutworm, spodoptera litura f. Development of microplitis bicoloratus on spodoptera litura and implications for biological control kaijun luo1,2, john t. Yoshiaki noma, yoshinori asakawa, in comprehensive natural products ii, 2010. Pdf biology of spodoptera litura fabricius lepidoptera. The following key is designed to help separate middle to late instar s. Its common names reference two of the most frequent host plants of the moth.
The common cutworm, spodoptera litura, has become a major pest of soybean glycine max throughout its. Spodoptera is a genus of moths of the family noctuidae first described by achille guenee in 1852. A group of asian researchers first proposed a genome project for the tobacco cutworm, spodoptera litura lepidoptera, noctuidae, in 20, drawn to this species as a. Effects of three spodoptera litura control strategies on arthropod diversity and abundance in tobacco agroecosystems in south china zhongshi zhou, 1, 2, zepeng chen 3 and zaifu xu 1, 1department of entomology, college of nature resources and environment, south china agricultural university, guangzhou, 510642, china. The highest and lowest net fecundity rates were obtained on williams eggsfemale and l17 eggsfemale, respectively. Effect of calotropis procera leaf extract on spodoptera. Efficacy of spodoptera litura multiple nucleopolyhedrovirus.
As seen in sesquiterpenoids, these organisms introduce oxygen atom at their allylic. Spodoptera litura prodlioverview eppo global database. An originally isolated baculovirus, spodoptera litura multiple nucleopolyhedrovirus spltmnpv was serially passed through the s. Promod kumar shakya, masarrat haseeb and uzma manzoor department of plant protection, faculty of agricultural sciences, aligarh muslim university, aligarh, uttar pradesh, india email. Bioassay of nuclear polyhedrosis virus npv and in combination with insecticide on spodoptera litura fab tran thi kieu trang 1 and s.
This moth is found in asia, with some specific problematic pest population reports occurring in cambodia, hong kong, india, the pacific. Establishment of spodoptera litura spodoptera litura egg masses were collected from groundnut fields at vellore and kancheepuram districts of tamil nadu, india. Noctuidae 3 host plants the beet armyworm has a wide host range, occurring as a serious pest of vegetable, field, and flower crops. For final identification it is necessary that the genitalia are dissected.
Effects of four host plants on biology and food utilization. Ambedkar road, pune 411 00 i, india received 3 november 999. Noctuidae was evaluated at c, % relative humidity and a photoperiod of 16 h light8 h dark. Effect of three spodoptera litura control strategies, viz. Noctuidae and some native spodoptera moths introduction the purpose of this handout is to help you distinguish two exotic spodoptera moths of concern to u. Temperature impacts the development and survival of common cutworm spodoptera litura. Ovicidal activity of plant extracts against litura. On the other hand, species like spodoptera frugiperda, heliothis virescens, gamma irradiation of spodoptera litura larvae induced an abatement in their. Spodoptera litura is an important polyphagous pest in india, china and japan. Hymenia recurvalis spoladea recurvalis, spodoptera litura, heliothis armigera and sometimes grasshoppers are the most harmful pests. Noctuidae are laid in clusters of 200 to 300 underneath leaves and covered with brown scales from the body of the mother. Evaluation of lethal response of biorational insecticides.
The spodoptera litura genome elucidates its polyphagy. The test insect, spodoptera litura populations used in this study were collected from castor field at coimbatore district, tamil nadu india during 20142015. Biological characterization of a nucleopolyhedrovirus of. 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. Simulation and visualization of potential population growth in india under warmer temperatures through life cycle modeling table 1. Its activity was better than the positive control azadirachtin.
Development of microplitis bicoloratus spodoptera litura. The lc 50 values were found to increase with the age of host. Its estimated genome size was approximately 142 kb. Spodoptera litura an overview sciencedirect topics. When the characteristic feeding damage of spodoptera was encountered during sampling, we inspected the entire field and removed by hand any new larval clusters and egg masses.
It is commonly known as tobacco caterpillar, a most devastating pest of cotton, groundnut, chillies, tobacco, castor, bhendi, pulses 2, 9. The larvae feed in a group when they are young but spread out as they get older. Crucifer seed crop pests, parasites, and the potential for. Spodoptera litura larvae are polyphagous insects that have become a significant pest in recent years. Two windows, one triangular 1a and one rectangular 1b. Cotton cutworm, spodoptera litura pest tracker caps.
Noctuidae, commonly known as tobacco caterpillar in india is a major polyphagous pest attacks variety of economically important crops such as cotton, groundnut, rice, tomato, tobacco, citrus, cocoa, potato, rubber, castor, millets. The raw data of the developmental time, survivorship, and female daily fecundity of e. Noctuidae, is one of the most common and widespread insect pests in asian countries ahmad et al. Ninetysix orfs had homologues in autographa californica multicapsid nucleopolyhedrovirus acmnpv, 16 had homologues in other. This moth is found in asia, with some specific problematic pest population reports occurring in cambodia, hong kong, india, the pacific islands, guam, american. There are only a few studies that demonstrate the harm done to crops, the decline in production, and the economic losses that spodoptera.
This document is eeny105, one of a series of the entomology and nematology department, ufifas extension. Spodoptera litura below are some characters that are useful to distinguish spodoptera litura from other spodoptera species. The forewings need to be examined carefully because of their color variation and similarity to other nonindigenous as well as native species. Fortunately, the pest is highly susceptible to its npv and studies have shown that the virus can be used effectively as biopesticide in the field jayaraj et al. Spodoptera frugiperda colony spodoptera frugiperda specimens were obtained from insect colonies and maintained in a laboratory.
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