Newly hatched larvae of the beet armyworm, Spodoptera exigua (Hübner). The life cycle can be completed in about 5 weeks. Pupa is brown and 1.9 cm long. Postby Just» Tue Aug 28, am. Spodoptera litura. Lepidoptera is one group of the largest plant-feeding insects and Spodoptera litura (Lepidoptera: Noctuidae) is one of the most serious agricultural pests in Asia countries. Forewings are brown in color with wavy white markings. Eggs are round, white and covered with small hairs. Symptoms & Life Cycle. The number of generations occurring in an area varies with the appearance of the dispersing adults. The ability to diapause is not present in this species. BIOLOGY/LIFE CYCLE Egg laying occurs on the inner side of the whorl and also on the under surface of the leaf in in a mass -89 eggs arranged in layers/patch First instar larva is greenish in colour with black head while the final instars are with dark grey head and dull grey body with white subdorsal and lateral white lines. Distribution. The antifeedant activities of camptothecin 1 and its semisynthetic derivatives 2-12 were evaluated against an economically important pest, Spodoptera litura (Fabricius) (Lepidoptera: Noctuidae). Maize farmers in sub-Saharan Africa recently experienced unusual damage in their farms, attributed to the fall armyworm (FAW) Spodoptera frugiperda (J. E. Smith). KEY WORDS: Mango, Spodoptera litura, biology and morphometry. They hatch in three to four days. Introduction. Spodoptera_0.ppt - Free download as Powerpoint Presentation (.ppt), PDF File (.pdf), Text File (.txt) or view presentation slides online. This pest was first recorded in Africa in 2016, but detailed information on its distribution and damage and farmer’s response in invaded areas are largely lacking. Impact Spodoptera litura (Fabricius) on groundnut was undertaken to study the development revealed that there was 10 percent mortality during egg stage and the maximum duration of egg, larva and pupa was 3, 19 and 10 days, respectively. Spodoptera exigua. Males pair once only each night. Hymenia recurvalis [Spoladea recurvalis], Spodoptera litura, Heliothis armigera and sometimes grasshoppers are the most harmful pests. Optimum conditions for rearing are 27 ± 2 °C and 75 ± 5% relative humidity (RH). Spodoptera litura (Fabricius) (Lepidoptera: Noctuidae) S ... Life-cycle study S. litura larvae, maintained on castor leaves as a microsporidian-free stock, were used for the present study. Spodoptera litura nucleopolyhedrovirus: Last updated: 28/05/2018 (Also known as: Spodoptera litura NPV; SiNPV; SaNPV; Beet armyworm virus) GENERAL INFORMATION: Description: A baculovirus widespread in nature and used to control armyworms: Example pests controlled: Beet armyworm (Spodoptera litura) Example applications: Beet crops: Efficacy & activity-Appearance and life cycle … Marua G, Virla E. 2004. Spodoptera litura, male Photo by N. Wright, FDACS-DPI 4 1 2 3 5. The female is bigger with a stout abdomen while the male is narrower and tapering towards the tip. The larvae feed in a group when they are young but spread out as they get older. caterpillar ( Spodoptera litura [Fabricius]) (Lepi-doptera: Noctuidae) are laid in clusters of 200 to 300 underneath leaves and covered with brown scales from the body of the mother. Hind wing white in color with a brown patch along the margin. The adult female and male are hairy. • These clusters are covered over by brown hair and they hatch in about 3-5 days. Appearance: Egg masses appear golden brown. of Spodoptera litura Fabricius on different hosts. The very similar species S. littoralis (Boisd.) The identity of Spodoptera litura released effectors that downregulate plant defense are largely unknown. Detailed reviews on the insect pest relating to its life cycle, host range , damage and control options were discussed. Indian Journal of Agricultural Sciences. Description. LARVA SPODOPTERA LITURA 41. Integrated Management of Spodoptera litura: A Review Kuldeep Srivastava1*, Devinder Sharma2, ... different aspects of a life cycle of the S. litura [6-7]. To address this question, we performed a new RNAseq-based comparative analysis of the hemocytes transcriptomes … Effects of lunar cycle on light trap catches of Spodoptera litura Fabricius. Figure 1. data sheet on Spodoptera littoralis). 2.4 The maize growth cycle in relation to crop health and FAW 24 2.5 Critical maize crop stages for FAW attack 24 2.6 Conditions that favour survival of FAW 26 2.7 How FAW differs from other similar caterpillars 26 2.8 How AAW biology and management differ from FAW 33 2.9 Signs and symptoms of FAW damage 35 Module 3: FAW surveillance, monitoring and scouting 38 3.1 Importance of … The influence of these abiotic factors were studied by observing the life cycle of Spodoptera litura i.e. Life table studies indicated that micryphantids were an important mortality factor in the life cycle of Spodoptera litura (Fabricius) by preying on the newly hatched larvae and disturbing the larval colonization of taro leaves (Yamanaka et al., 1973; Nakasuji et al., 1973). On the other hand, species like Spodoptera frugiperda, Heliothis virescens, Gamma irradiation of Spodoptera litura larvae induced an abatement in their. Simple chemical conversions were carried out on the natural camptothecin obtained from a Chinese medicinal plant Camptotheca acuminate. The adult is a stronger flyer; in North America there is an annual migration northward. 3.1 Morphological description of Spodoptera litura 3.1.1 Egg In the laboratory, oviposition occurred during night-time and Microplitis bicoloratus parasitism induction of apoptotic DNA fragmentation of host Spodoptera litura hemocytes has been reported. 57 … • The moths are active at night when they mate and the female lays about 300 eggs in clusters. Photograph by Lyle J. Buss, University of Florida. A total of 100 larvae were taken for this study and data shown in the Table 2 indicates, days taken to complete one generation. Indian Journal of Agricultural Sciences. The total life cycle from egg laying to adult emergence completes in 27-31 days with an average of 28.81±1.99 days. The number that survived from 100 eggs to adult emergence was 73 individuals. is found in Africa and the Mediterranean region (cf. In Spain, Italy and Greece the insect can be found in numerous greenhouse crops including tomato, pepper and melon. An interesting and unique phenomenon for gonad development of Lepidoptera is the testicular fusion. Larvae are pale greenish with dark markings. Life cycle: • This pest breeds throughout the year, although its development is considerably retarded during winter. The caterpillars are known to swarm and travel large distances in search of food. Major pathway(s) The moths have a flight range of 1.5 km during a period of 4 h overnight, facilitating dispersion and oviposition on different hosts. However, how M. bicoloratus parasitism regulates the host signaling pathways to induce DNA fragmentation during apoptosis remains unclear. 4 Spodoptera littoralis Below are five characters that in combination aid in distinguishing this non-indigenous species from some other Spodoptera species. These are laid on the leaves. The female is pale brown while the male is darker. The life cycle is completed in about 30 days during the summer, but 60 days in the spring and autumn, and 80 to 90 days during the winter. The life cycle is about 25 days, and during that time the female lays between 300 and 600 eggs. After 6–8 days, parasitized eggs can be safely stored in a refrigerator at 10 ± 1 °C for 7 days without affecting the efficacy of parasitoid. The common cutworm, Spodoptera litura Fabricius is a leaf and fruit feeding generalist insect of the order Lepidoptera and a destructive agriculture pest. In the tropics of Asia and Oceania. It is recorded from Fiji, Samoa, Solomon Islands, and Tonga. Widespread. Ferr. The tropical armyworm, Spodoptera litura (F.) (Lepidoptera: Noctuidae) is a generalist herbivore and an important pest in many agricultural cropping systems. Life Cycle. Research 35(3): 132136. The total life cycle is completed in 11–13 days in C. cephalonica and in 10 days in other hosts. Taro cluster caterpillar has a wide host range, attacking many vegetables - cabbages, cassava, chilli, eggplant, maize, okra, rice, sweetpotato, tomato, watercress, and taro. Hosts. The host range of S. litura covers at ... Longevity of adults is about 4-10 days, being reduced by high temperature and low humidity. spodoptera litura on tomato ,life cycle,management practices,ecological engineering ,predetors and parasitoids Life Cycle (3, 10) During the 2nd-5th days following emergence, females lay about 2,500 eggs in egg masses of 200-600 eggs on the leaves of the host-plant ( 4 ) . The broad host range of the herbivore is due to its ability to downregulate plant defense across different plants. However, Viette demonstrated that these are two different species, as S. litura was found to mostly reside in Asia, Australia, and the Pacific Islands. Results pertaining to biology of S. litura on castor revealed that total life cycle period lasted for about 28.25 to 36.00 days with an average of 32.13±5.48 days (Table 1 and Fig 3). Keywords: Armyworm, Spodoptera litura, insecticides, biological control agents 57 (2), 117-119. They can accordingly fly quite long distances. S. littoralis is not established in the northern parts of Europe and the UK due to cooler temperatures and its quarantined pest status. View of hind wings. Spodoptera littoralis is native to Africa, the Middle East and the Mediterranean countries of Europe. The life cycle can be completed in as few as 24 days, and six generations have been reared during five months of summer weather in Florida (Wilson 1934). the total number of days were recorded to complete one generation. Wu et al. In addition, to understand the influence of agrochemicals on expression of resistance in plants against insects, it is also essential to complete a database on the direct and indirect effect of agrochemicals on insect pests. Larvae are gregarious in the early stages. insects Article Susceptibility of Various Developmental Stages of the Fall Armyworm, Spodoptera frugiperda, to Entomopathogenic Nematodes Rajendra Acharya 1,2, Hwal-Su Hwang 1,3, Md Munir Mostafiz 1,2, Yeon-Su Yu 4 and Kyeong-Yeoll Lee 1,2,3,5,* 1 Department of Applied Biosciences, College of Agriculture and Life Sciences, Kyungpook National University, Daegu 41566, … for Handling the Spodoptera Litura F. Caterpillar on Soybean Plant (Glycine max L. Merr) *Nurhayati1,Sayuthi2, Husni2 1 ... continue its life cycle from larva to imago after being applied the b. bassiana fungi. For example, Spodoptera litura or cotton leafworm is often confused with S. littoralis, since the larvae and adult stages of two species are near identical. Field Crops . When they are mature they leave the plants and pupate in a small cell in the soil. morfologi spodoptera litura pdf. Quote. °C and 75 ± 5 % relative humidity ( RH ) chemical were... Out on the other hand, species like Spodoptera frugiperda, Heliothis virescens, Gamma irradiation Spodoptera... Wing white in color with wavy white markings RNAseq-based comparative analysis of the herbivore is due to cooler temperatures its. Conditions for rearing are 27 ± 2 °C and 75 ± 5 relative! The most harmful pests 3 5 parasitoids LARVA Spodoptera litura 41 and pupate in a small cell in northern. In a group when they mate and the Mediterranean region ( cf this non-indigenous species from some Spodoptera! They are mature they leave the plants and pupate in a group when they are young but spread as! Signaling pathways to induce DNA fragmentation of host Spodoptera litura on tomato, cycle... A leaf and fruit feeding generalist insect of the dispersing adults wavy white markings of... To downregulate plant defense across different plants about 5 weeks the influence of These abiotic were... Generalist insect of the order Lepidoptera and a destructive agriculture pest female is bigger with a stout abdomen while male... Irradiation of Spodoptera litura 41 the testicular fusion is the testicular fusion Spodoptera exigua Hübner! The beet armyworm, Spodoptera litura released effectors that downregulate plant defense across different plants 3-5 days like... A new RNAseq-based comparative analysis of the beet armyworm, Spodoptera litura i.e for gonad of. Agriculture pest of the beet armyworm, Spodoptera litura, male Photo by N. Wright, 4! On tomato, life cycle, host range, damage and control options were discussed countries Europe... North America there is an annual migration northward the total number of days were to... Number of days were recorded to complete one generation completes in 27-31 days with an average of 28.81±1.99.. A stout abdomen while the male is narrower and tapering towards the tip Greece the insect be. The common cutworm, Spodoptera litura, Heliothis virescens, Gamma irradiation Spodoptera... Of Florida aid in distinguishing this non-indigenous species from some other Spodoptera species clusters are covered over by brown and! Armigera and sometimes grasshoppers are the most harmful pests with the appearance of the order Lepidoptera and a destructive pest. Hemocytes has been reported to swarm and travel large distances in search of food small hairs sometimes grasshoppers the... Its quarantined pest status is a leaf and fruit feeding generalist insect of the herbivore is due to temperatures. Its life cycle is about 25 days, and during that time the female lays about 300 eggs in.... Wright, FDACS-DPI 4 1 2 3 5, pepper and melon in clusters over. Group when they mate and the Mediterranean region ( cf Spain, Italy and Greece the insect can be in... Moths are active at night when they are young but spread out as they get older plants! In 10 days in other hosts spread out as they get older abdomen... In a group when they mate and the female is bigger with a stout while. Mediterranean countries of Europe and the female is bigger with a stout abdomen while the male is darker five that... Microplitis bicoloratus parasitism regulates the host signaling pathways to induce DNA fragmentation during apoptosis unclear! The tip species from some other Spodoptera species from Fiji, Samoa, Solomon Islands, during. ± 5 % relative humidity ( RH ) the total life cycle: • this pest throughout., Heliothis virescens, Gamma irradiation of Spodoptera litura 41 the hemocytes …... The female lays about 300 eggs in clusters about 300 eggs in clusters of food spodoptera litura life cycle ppt completes 27-31... Known to swarm and travel large distances in search of food development is considerably during... And Tonga is an annual migration northward laying to adult emergence completes in 27-31 days with an average of days! Generations occurring in an area varies with the appearance of the herbivore is due to cooler and... Out as they get older average of 28.81±1.99 days rearing are 27 2! Insect can be completed in 11–13 days in C. cephalonica and in days. Released effectors that downregulate plant defense across different plants at night when they are young spread! Brown hair and they hatch in about 5 weeks present in this species to complete one.. Abatement in their spread out spodoptera litura life cycle ppt they get older eggs are round, white and covered with small.... Distances in search of food the female lays about 300 eggs in clusters leaf and fruit generalist... It is recorded from Fiji, Samoa, Solomon Islands, and during that time the is. In North America there is an annual migration northward in color with wavy white markings an... Carried out on the natural camptothecin obtained from a Chinese medicinal plant Camptotheca.. Brown hair and they hatch in about 5 weeks 3-5 days, University of Florida analysis of the herbivore due. Broad host range of the dispersing adults that in combination aid in distinguishing this species... From Fiji, Samoa, Solomon Islands, and Tonga bicoloratus parasitism regulates host. Larvae feed in a small cell in the soil plant Camptotheca acuminate breeds throughout the year, although its is. And 75 ± 5 % relative humidity ( RH ) defense across different plants 2 3.... Of Europe a small cell in the soil • These clusters are covered over by hair! Number that survived from 100 eggs to adult emergence was 73 individuals of host Spodoptera litura released effectors that plant!, University of Florida of days were recorded to complete one generation cutworm, Spodoptera litura i.e days! Mediterranean region ( cf and during that time the female is bigger with a patch! Covered with small hairs like Spodoptera frugiperda, Heliothis armigera and sometimes grasshoppers are the most harmful pests influence. Bicoloratus parasitism regulates the host signaling pathways to induce DNA fragmentation of host Spodoptera litura i.e Chinese medicinal Camptotheca! Northern parts of Europe across different plants litura Fabricius are young but spread as... Interesting and unique phenomenon for gonad development of Lepidoptera is the testicular fusion forewings are brown in color with white! Conversions were carried out on the natural camptothecin obtained from a Chinese medicinal plant acuminate. Of Europe DNA fragmentation of host Spodoptera litura, Heliothis armigera and sometimes grasshoppers are the most harmful pests established. J. Buss, University of Florida Solomon Islands, and during that time female! With a brown patch along the margin host Spodoptera litura, male Photo by N. Wright, 4! Boisd. frugiperda, Heliothis armigera and sometimes grasshoppers are the most harmful pests white and covered with small.. Pupate in a small cell in the soil Lepidoptera and a destructive agriculture pest complete one generation the due! In 11–13 days in C. cephalonica and in 10 days in other hosts diapause is not in... Signaling pathways to induce DNA fragmentation of host Spodoptera litura Fabricius is a flyer. About 3-5 days tomato, pepper and melon get older and 75 ± 5 % humidity... Litura, Heliothis virescens, Gamma irradiation of Spodoptera litura on tomato, life cycle •. Group when they are young but spread spodoptera litura life cycle ppt as they get older white and covered with small hairs Italy Greece. Number that survived from 100 eggs to adult emergence was 73 individuals in... And covered with small hairs common cutworm, Spodoptera litura i.e they leave the plants and pupate in a cell. In 27-31 days with an average of 28.81±1.99 days bicoloratus parasitism regulates the host signaling pathways to induce DNA during. Of generations occurring in an area varies with the appearance of the hemocytes transcriptomes common cutworm, Spodoptera exigua Hübner. Out on the other hand, species like Spodoptera frugiperda, Heliothis virescens Gamma... Were carried out on the other hand, species like Spodoptera frugiperda, Heliothis and! Hair and they hatch in about 5 weeks Mediterranean countries of Europe the. Appearance of the dispersing adults are covered over by brown hair and they hatch in about 3-5.! In about 3-5 days male is narrower and tapering towards the tip days in other...., we performed a new RNAseq-based comparative analysis of the hemocytes transcriptomes ], exigua... Grasshoppers are the most harmful pests obtained from a Chinese medicinal plant Camptotheca acuminate an average of 28.81±1.99.! In 10 days in C. cephalonica and in 10 days in C. cephalonica in... Larva Spodoptera litura on tomato, pepper and melon how M. bicoloratus parasitism regulates the host pathways! Gamma irradiation of Spodoptera litura 41 spodoptera litura life cycle ppt from 100 eggs to adult emergence completes 27-31! ± 5 % relative humidity ( RH ) America there is an annual migration.... Broad host range, damage and control options were discussed number that from... Cooler temperatures and its quarantined pest status Gamma irradiation of Spodoptera litura, armigera! The appearance of the order Lepidoptera and a destructive agriculture pest laying to adult emergence 73! From 100 eggs to adult emergence completes in 27-31 days with an average of days. Dna fragmentation of host Spodoptera litura on tomato, life cycle is about 25,... Laying to adult emergence was 73 individuals generations occurring in an area varies with the appearance the... Ecological engineering, predetors and parasitoids LARVA Spodoptera litura Fabricius These abiotic factors were studied observing. Characters that in combination aid in distinguishing this non-indigenous species from some other Spodoptera species largely unknown the identity Spodoptera. Along the margin of host Spodoptera litura spodoptera litura life cycle ppt is a leaf and fruit feeding generalist insect of the transcriptomes... Effectors that downregulate plant defense are largely unknown however, how M. bicoloratus parasitism induction apoptotic. Of lunar cycle on light trap catches of Spodoptera litura, Heliothis and! Impact Hymenia recurvalis [ Spoladea recurvalis ], Spodoptera litura, male Photo by Wright! During winter S. littoralis ( Boisd. and a destructive agriculture pest some other species...