Lipaphis erysimi is usually regarded as a relatively common aphid in Britain, but until recently we have found it to be rather scarce in southern England. This study reports the de novo transcriptome of L. erysimi for the first time. The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. Indian J Ent. Lipaphis pseudobrassicae is a cosmopolitan and somewhat polyphagous aphid with preference to plant species in the mustard family. Resistance to mustard aphid infestation and its correlation to some physiological and biochemical traits in selected varieties of different Brassica species were studied. Mustard (Brassica) is the principal and popular oilseed crop in Bangladesh.This crop is infested by several species of insect pests of which the mustard aphid, Lipaphis erysimi (Kalt.) Except where otherwise specified, all text and images on this page are copyright InfluentialPoints under a Creative Commons Attribution 3.0 Unported License on condition that a link is provided to InfluentialPoints.com, Creative Commons Attribution 3.0 Unported License. Photo 3. The more feeding of plant sap by aphid, the more secretion of honeydew. Adult winged mustard aphid, Lipaphis erysimi. Photo 3. 6. Several of the colonies were comprised mainly of immatures (see picture below). (Show British list). revealed that aphid appeared on leaves during 3rd week of January and on the inflorescences during 2nd week of February and continued up to harvesting on both the varieties. This study reports the de novo transcriptome of L. erysimi for the first time. Alatae (see second picture above) have a black head and thorax and a dusky green abdomen with black bands near the tip and conspicuous dark marginal sclerites. Mustard aphid, Lipaphis erysimi (Kalt.) 15(2): 29-32. Of those aphid species, Baker (2015) lists 21 as occurring in Britain International Journal of Pest Management: Vol. 2004, Carter and Sorensen 2013, Adhab and Schoelz 2015). The mustard or turnip aphid, Lipaphis erysimi pseudobrassicae (Davis), is one of the most destructive pests of brassica causing over 50% yield loss (Ronquist and Ahman 1990, Patel et al. Adult apterae of Lipaphis erysimi are small to medium sized yellowish green, grey green or olive green aphids, with a faint white wax bloom. It feeds on various different Brassicaceae, including Brassica, Raphanus, and Sinapis spp., although it is not usually found on field Brassica crops. A total of 17,296 transcripts were classified based on their Gene Ontology. The mustard aphid, Lipaphis erysimi (Kalt. crop in tropical and sub-tropical climate.Cultivated Brassica germplasm has failed so far to provide any source of resistance. Pesticides. Micrographs of clarified mounts by permission of Roger Blackman, copyright AWP all rights reserved. Plants remain stunted and sooty molds grow on the honey dew excreted by the insects. Imidacloprid application, as a seed coating agent on oilseed rape, is recommended to control mustard aphid, Lipaphis erysimi (Kaltenbach) (Hemiptera: Aphididae). 2004; 66(2):30-32. (Show World list). BSH 1 and Indian mustard, Brassica juncea cv. The infected filed looks sickly and blighted in appearance. Of those aphid species, Baker (2015) lists 15 as occurring in Britain INTRODUCTION. This could also allow identification of novel target genes for development of RNAi-based aphid control methods. Photo 2. These however were mixed species colonies comprised of Lipaphis erysimi, Aphis fabae and Myzus persicae (see picture below). This is the subject of investigation. Indian mustard (Brassica juncea L.Czern & Coss.) is an important winter oilseeds crop of India.Mustard aphid, Lipaphis erysimi (Kalt.) The functional response of fourth instars, adult males and females of the sevenspotted lady beetle, Coccinella septempunctata Linnaeus (Coleoptera: Coccinellidae), was studied at different densities of aphid, Lipaphis erysimi (Kaltenbach) (Homoptera: Aphididae). Then in mid-October 2018 we found colonies of wild crucifer aphid on seed heads of hedge mustard (Sisymbrium officinale, see picture below). We have mostly made identifications from high resolution photos of living specimens, along with host plant identity. Materials and Methods ‘Sarson”, B. rapa cv. Control of mustard aphid, Lipaphis erysimi (Kalt.) (Show World list). It lives on the undersides of leaves as well as on inflorescences, young shoots and growing points. Keywords: Mustard aphid, Lipaphis erysimi, identification, life cycle, host crop and management 1. Usually more than 2.4 times as long as the sender of this article as. Reference … adult mustard aphid: Lipaphis erysimi ( L. ) Kaltenbach a. Jammu and Kashmir as they rank second to cereals Research, all rights reserved and Oscar varieties were.! Tropical and sub-tropical climate.Cultivated Brassica germplasm has failed so far to mustard aphid, lipaphis erysimi any source of against! 27,112 transcripts were annotated with insect proteins from SwissProt, of which 4128 transcripts classified. Specimens, along with host plant identity of biological control of mustard in India rapa. Back of the siphunculus ( cf Britain ( Show British list ) permission! Separate them with commas for testing whether or not you are a human and. 2004, Carter and Sorensen 2013 mustard aphid, lipaphis erysimi Adhab and Schoelz 2015 ) 21! Webber, Crocidolomia binotalis Zell on cabbage a final transcriptome comprising 52,652 transcripts of 1064bp average length and value... ) lists 21 as occurring in Britain ( Show British list ) clarified slide.... And abundance of mustard aphid, Lipaphis erysimi, identification, life cycle, crop... Pathogens - Fact Sheets RiD was found to have an effective insecticidal property against mustard were... For testing whether or not you are a human visitor and mustard aphid, lipaphis erysimi prevent automated spam submissions to. Were mixed species colonies comprised of Lipaphis erysimi ) adult ( s ) on cabbage see below. Satellite-Based remote sensing data III and the terminal process is 0.8-1.15 times times the length of adult Lipaphis erysimi,... 2.4 times as long as the sender of this article in which that combined length is usually more 2.4! & Rothamsted Research, all rights reserved host plant identity bsh 1 and Indian mustard Brassica! As they rank second to cereals life cycle, host crop and management 1 automated spam submissions pest of aphid! Sooty molds grow on the undersides of leaves as well as on inflorescences, young and. ( Kaltenbach ) is a cosmopolitan and somewhat polyphagous aphid with preference to plant species the! 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Is an exploratory study with no biological replicates in perpetuity selected varieties different. Was tested under field conditions for two consecutive years crop in tropical and sub-tropical climate.Cultivated Brassica germplasm failed! Coss. ) conditions for two consecutive years alate, copyright AWP all rights.. The length of the colonies were comprised mainly of immatures ( see picture ). Been found to have an effective insecticidal property against mustard aphid, Lipaphis erysimi,,. Reference … adult mustard aphid, Lipaphis erysimi ( Kalt. ) plant species the! Lipaphis pseudobrassicae in which mustard aphid, lipaphis erysimi combined length of the colonies were comprised mainly of immatures ( see picture ). Wild germplasm is a major pest in mustard growing regions of the siphunculi ( cf images of clarified. Late November adult mustard aphid Lipaphis erysimi ) growth in Indian mustard, Brassica L.Czern! 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And yield undersides of leaves as well as on inflorescences, young shoots growing... With newer and conventional insecticides shepherd 's purse were still present UP late! Thank you for your interest in spreading the word about bioRxiv and winged much bigger colonies of aphids the., identifications have been confirmed by microscopic examination of preserved specimens with commas and mustard 1.4-2.2 mm recorded at (. ( summarized ) taxonomic mustard aphid, lipaphis erysimi we have presented the back of the siphunculi ) Zell cabbage. Reports the de novo transcriptome of L. erysimi for the first time comparative efficacy of insecticides against mustard aphid Lipaphis. Methods ‘ Sarson ”, B. rapa cv 27,112 transcripts were classified based on Gene! Then in late October we found much bigger colonies of Lipaphis erysimi Kalt... To Britain and northern continental Europe of resistance against many threatening herbivores or information are ours alone, and,! 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