Aphis craccivora dari lapangan dibebasviruskan pada daun talas selama semalam. Aphis craccivora Koch., is considered one of the most injurious pests infests these plantations, and other leguminous species causes by sucking the plant sap . Klasifikasi dan Morfologi Kutu Daun (Aphis gossypii) – Hama Kutu Daun atau dikenal Hama Aphid memiliki nama latin Aphis gossypii, dengan famili Aphididae adalah hama penghisap yang sangat membahayakan tanaman, hama ini juga sebagai vektor penularan berbagai macam virus.Hama ini menyerang pada musim kemarau, pada fase awal pertumbuhan tanaman. Efisiensi Penularan Virus Mozaik Bengkuang dengan Aphis craccivora Koch. RESPON PERKEMBANGBIAKAN Aphis craccivora Koch. This Research was conducted on October until December 2013 in Plant Protection Laboratory of Agriculture Faculty the University of Bengkulu. Equbal Ahmad2 Aphid Systematics & Biocontrol Laboratory, University Department of Zoology, T.M. (ii) To investigate the effect of infestation of a younger leaf (T,) on the rate of photosynthesis of the leaf below it (T,), 30 apterae were confined to the T, on one plant of each pair and measurements made at intervals on the T,. Entomopatogen merupakan salah satu agen hayati yang berpotensi untuk mengendalikan berbagai hama, dan aman … A. craccivora caused pod shrivelling at the young and … Observation on biology of Aphis craccivora Parameters observed were the time needed for each instar phase, life cycle, preoviposition, life span and fecundity of A. craccivora. Aphis craccivora. Aphis craccivora is one of the serious pest of Phaseolus sinensis and Lablab purpureus. dan A. gossypii( Glover) TñAsmira Damayanti, Endah Muliarti, Dewi Sartiami... Pengaruh Konsentrasi Pupuk Hayati Majemuk Batuan Fosfat Alam Terhadap Serapan P oleh Tanaman Selada (Lactuca sativa L.) di Tanah Andisols Joko Maryanto danAbubakar Cowpea aphid, Black legume aphid, Groundnut aphid.. Distribution. Aphis craccivora is an efficient Kutudaun yang lahir dipelihara pada tanaman kacang panjang sehat. Kemudian kutudaun dipindahkan pada tanaman sakit dan dibiarkan hingga muncul populasi kutudaun bersayap. Further several studies have been made on its biology and predatory efficiency [5-7]. Among aphids, A. craccivora is one of the major crop pests infesting over 400 host plants, International Conference on Agricultural and Animal Science Ipcbee 22: 119-123. nymph of A. craccivora per polybag on both the PGPR-application plants and the control-application plants. Evaluation of Yardlong Bean and Cowpea for Resistance to Aphis craccivora Koch In Southern Part of In this study, the endosymbiotic mi-crobiotae in A. craccivora and M. crassicauda collected from different localities in Japan were investigated in compar- The nymphs and adults feed the sap gregariously on the leaves, tender shoots, inflorescence and tender pods thus causing malformations, stunting and even drying up of the parts. It causes direct damage and also has an indirect effect as insect vector of the Bean common mosaic virus (BCMV). Botanical insecticides that degrade rapidly are safer than persistent synthetic chemical insecticides, less harmful to the environment, decrease production costs and are not likely to cause insecticide resistance among pests. Aphis craccivora initially infests cowpea seedlings, but as this plant develops, it may infest flowers and pods (Berberet et al. Key words: Aphis craccivora, Crop Pest, Entomopathogenic Fungi, median lethal concentration INTRODUCTION Cowpea aphid, Aphis craccivora (Koch) is a threat to cowpea growers in all over the country. The aphids Aphis gossypii Glover (Ramalho et al. Aphids ( Aphis craccivora Koch) are an important vegetative stage pest of cowpea in Africa. Singh and Allen (1980) estimated yield losses of 20% to 40% in cowpea due to A. craccivora infestation in Asia and up to 35% in … is an insect that causes considerable damage to the production of yardlong bean in many countries. Aphis craccivora (Koch) and Aphis gos-sypii (Glover) (Pervez and Omkar 2004 and Omkar and Mishra 2005), whereas their development and reproduction are negatively affected, when fed on aphids containing toxic biochemical constituents. Aphis craccivora (Koch) (Aphididae: Homoptera) is associated with many host plants in the family Fabaceae and also in many other plant families such that it attacks about 50 crops in 19 different plant families [2]. Thesis Title Inheritance of Resistance to Cowpea Aphid (Aphis craccivora Koch.) Observations on Aphis craccivora Koch at Serere, Uganda, in 1964–68 showed that dry season carry-over of aphids could occur on the common weeds Euphorbia hirta and E. prostrata; at other times aphids were seen on Gliricidia sepium, Cassia tora, Centrosema pubescens and Macroptilium atropurpureum, the last two being increasingly used as pasture legumes. Cowpea Aphid ( Aphis craccivora Koch) Ilse Schreiner, Ph.D., Professor of Entomology, University of Guam Y oung and adult cowpea aphids ( Aphis craccivora Koch) (Homoptera: Aphididae) feed by sucking plant juices. A. craccivora adults are mostly shiny black or dark brown, variable in size, being DAN A. gossypii Glover. Aphis craccivora is one of the important pests on yard long bean. Bhagalpur University, Bhagalpur-812 007, Bihar Abstract: Allelochemicals and physical barriers such as wax of leaf surfaces, trichomes, cell wall thickness and lignifications of host On the vetch Vicia sativaand other leguminous plants, Aphis craccivora, Megoura crassicaudaand A. pisumfrequently co-occur and form mixed colonies. Host odour preference of Aphis craccivora Journal of Biopesticides 3(1 Special Issue) 405 - 407 (2010) 405 Olfactory response of cowpea aphid, Aphis craccivora Koch, to host odours and population of conspecifics J. Jaba*, B. Haseena, S. Tripathy, A. C. Hosamani and Y. S. Amaresh The use of resistant cultivars is among the best management option for this pest, but the success of this strategy is influenced by the stability of the resistant genotype to the cowpea aphid biotypes present in the major cowpea growing areas in a country. Tri Asmira Damayanti* Endah Muliarti* Dewi Sartiami* *Departemen Proteksi Tanaman, Fakultas Pertanian IPB Jl. The research was done to test the effectiveness of chitosan in suppressing aphid population growth, feeding preference and its ability in transmiting BCMV. The experiment was conducted in terms of age-specific functional response to the varying density (5, 10, 20, 40, 60 and 80) of third instar nymphs of Aphis craccivora (Koch) at 23 ± 1 °C, 70 ± 5% R.H. and a photoperiod of 16: 8 h (L: D). Aphis craccivora Koch. Aphis craccivora and Vigna sesquipedalis 91 and length the midribs were made at intervals for 10 days. Penelitian ini bertujuan untuk mempelajari tingkat serangan yang ditimbulkan oleh kutudaun A. craccivora … 2005). These insects directly damage the plants by sucking the phloem, and indirectly by virus transmission and excretion of excess carbohydrates from their diet of 2012) and Aphis craccivora Koch (Hemiptera: Heteroptera: Aphididae) (Moraes and Ramalho 1980) are serious crop pests in Brazil. Salah satu hama yang banyak menyerang tanaman kacang tanah adalah kutudaun Aphis craccivora yang menyebabkan kerusakan yang cukup besar pada tanaman kacang tanah. LC 50% : 1,2 x 106 dan LC 75% : 5,2 x 108, sedangkan Its feeding causes leaf shriveling and bud deformation and as the population increases, plant infested become weaked due to loss of sap and toxins injected (Silva et al. Both nymphs and adults suck plant sap and cause serious damage right from the seedling to pod bearing stage. Worldwide in distribution, but particularly common in warm temperate and tropical regions. 2012. an aphid, Aphis craccivora Koch to evaluate the toxic and repellent effects under laboratory condition in the Department of Entomology, Hajee Mohammad Danesh Science and Technology University, Dinajpur during September 2016 to January 2017. Benchasri, S., C. Bairaman and C. Nualsri. (HEMIPTERA:APHIDIDAE) PADA TANAMAN KACANG PANJANG (Vigna sinensis L.) DENGAN PERLAKUAN JAMUR AKAR DEVELOPMENT RESPONSE OF Aphis craccivora Koch. This insect has a wide range of hosts and extensive distribution. Cowpea aphid feeding damage includes sucking and removing plant sap that reduces the amount of nutrients and water available to the crop and causes transmission of plant viruses. tain aphids, viz. control Aphis craccivora environmentally. 2009). Nilai LC hasil analisis probit hari ke-5 M. anisopliae terhadap A. craccivora. Due to heavy The mortality of cowpea aphid (Aphis craccivora), due to the treatment of chemicals ranged from 50 to 98%. The application of vegetable insecticides from papaya leaf extract is expected to reduce the presence of pests. Cowpea aphid, Aphis craccivora Koch is a polyphagous pest of cowpea that attacks the crop, feeding on all plant parts and leading to significant yield losses [10–12]. This research covers multiplication A. craccivora long bean, multiplication B. bassiana in the laboratory Eggs develop within the mother and nymphs are born live. APHIS CRACCIVORA KOCH. Kamper, Kampus IPB Dramaga, Bogor 16680 triadys@yahoo.com ABSTRACT Yambean mosaic virus is the most important virus infècting yam bean in Indonesia. The cowpea aphid, Aphis craccivora, Koch is a notorious key pest of this crop. Common names. Yardlong Bean for Resistance to Bean Aphids (Aphis craccivora Koch). Within a few days, nymphs mature into reproductive adults and in Yardlong Bean and Cowpea by Microsatellite Markers Author Mr. Somsak Potarot Major Program Plant Science Academic Year 2011 ABSTRACT The cowpea aphid (Aphis craccivora Koch.) The cowpea aphid, Aphis craccivora Koch, is one of the most serious pests of legumes, such as faba bean, cowpea and pea [3]. Aphis craccivora Koch (Homoptera: Aphidi-dae) is a major insect pest of cowpea in Africa, Asia and the Americas (Obeng-Ofori, 2007). The life cycle for A. craccivora recorded at daily basis. lmidacioprid 17.8 SL at 0.005 % concentration recorded highest … Identifikasi kutudaun dilakukan berdasarkan kunci identifikasi Blackman & Eastop (2000). Cowpea, Vigna unguiculata was infested at the young, mid‐fill and mature pod growth stages with, respectively, one, two and three pre‐reproductive adult apterae of Aphis craccivora per pod in a screen house. Kacang tanah (Arachis hypogea L.) merupakan sumber karbohidrat dan protein nabati yang banyak dibutuhkan oleh tubuh. Aphis craccivora a polyphagous aphid species with a preference for Fabaceae. Koch merupakan salah satu hama yang sangat merusak pada berbagai tanaman pertanian, disamping mengisap cairan tanaman hama ini juga sebagai vektor virus, keberadaan hama ini akan menimbulkan kerugian secara ekonomis pada tanaman yang dibudidayakan. A. craccivora and their predator Cheilomenes sexmaculata found abundantly in the localities of northeast Bihar [4]. Aphis Craccivora Koch Rakhshan1, Md. Berdasarkan uji patogenesitas pada Aphis craccivora untuk dapat membunuh 50%, dan 75% dibutuhkan kerapatan konidia B. basiana yang lebih sedikit dibandingkan dengan isolat M. anisopliae. BEHAVIOR Stylet Penetration Activities by Aphis craccivora (Homoptera: Aphididae) on Plants and Excised Plant Parts of Resistant and Susceptible Cultivars of Cowpea (Leguminosae) I. BILLY ANNAN,1 WARD M. 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