Both nymphs and adults suck plant sap and cause serious damage right from the seedling to pod bearing stage. 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. is an insect that causes considerable damage to the production of yardlong bean in many countries. 2012) and Aphis craccivora Koch (Hemiptera: Heteroptera: Aphididae) (Moraes and Ramalho 1980) are serious crop pests in Brazil. Kemudian kutudaun dipindahkan pada tanaman sakit dan dibiarkan hingga muncul populasi kutudaun bersayap. Aphis craccivora initially infests cowpea seedlings, but as this plant develops, it may infest flowers and pods (Berberet et al. RESPON PERKEMBANGBIAKAN Aphis craccivora Koch. Thesis Title Inheritance of Resistance to Cowpea Aphid (Aphis craccivora Koch.) Eggs develop within the mother and nymphs are born live. A. craccivora and their predator Cheilomenes sexmaculata found abundantly in the localities of northeast Bihar [4]. 2012. These insects directly damage the plants by sucking the phloem, and indirectly by virus transmission and excretion of excess carbohydrates from their diet of Aphis craccivora is one of the important pests on yard long bean. Tri Asmira Damayanti* Endah Muliarti* Dewi Sartiami* *Departemen Proteksi Tanaman, Fakultas Pertanian IPB Jl. nymph of A. craccivora per polybag on both the PGPR-application plants and the control-application plants. 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. 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. 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. Worldwide in distribution, but particularly common in warm temperate and tropical regions. Aphis craccivora a polyphagous aphid species with a preference for Fabaceae. The application of vegetable insecticides from papaya leaf extract is expected to reduce the presence of pests. Aphids ( Aphis craccivora Koch) are an important vegetative stage pest of cowpea in Africa. Further several studies have been made on its biology and predatory efficiency [5-7]. 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. Identifikasi kutudaun dilakukan berdasarkan kunci identifikasi Blackman & Eastop (2000). Aphis Craccivora Koch Rakhshan1, Md. 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. TINGEY, GEORGE A. SCHAEFERS,2 W. F. TJALLINGII,3 ELAINE A. BACKUS,4 AND K. N. SAXENA5 Department of Entomology, Insectary, Cornell University, Ithaca, NY 14853—2604 Cowpea aphid, Black legume aphid, Groundnut aphid.. Distribution. Nilai LC hasil analisis probit hari ke-5 M. anisopliae terhadap A. craccivora. Kamper, Kampus IPB Dramaga, Bogor 16680 triadys@yahoo.com ABSTRACT Yambean mosaic virus is the most important virus infècting yam bean in Indonesia. (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,. 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. 2005). 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. 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. Due to heavy 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 is one of the important pests in Leguminoceae in Indonesia. The cowpea aphid, Aphis craccivora, Koch is a notorious key pest of this crop. Penelitian ini bertujuan untuk mempelajari tingkat serangan yang ditimbulkan oleh kutudaun A. craccivora … (HEMIPTERA:APHIDIDAE) PADA TANAMAN KACANG PANJANG (Vigna sinensis L.) DENGAN PERLAKUAN JAMUR AKAR DEVELOPMENT RESPONSE OF Aphis craccivora Koch. tain aphids, viz. 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. It causes direct damage and also has an indirect effect as insect vector of the Bean common mosaic virus (BCMV). Entomopatogen merupakan salah satu agen hayati yang berpotensi untuk mengendalikan berbagai hama, dan aman … 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. 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]. A. craccivora adults are mostly shiny black or dark brown, variable in size, being Aphis craccivora is an efficient 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]. The life cycle for A. craccivora recorded at daily basis. Efisiensi Penularan Virus Mozaik Bengkuang dengan Aphis craccivora Koch. LC 50% : 1,2 x 106 dan LC 75% : 5,2 x 108, sedangkan Common names. Within a few days, nymphs mature into reproductive adults and A. craccivora caused pod shrivelling at the young and … lmidacioprid 17.8 SL at 0.005 % concentration recorded highest … Aphis craccivora Koch. 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. 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 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 … Aphis craccivora Koch (Homoptera: Aphidi-dae) is a major insect pest of cowpea in Africa, Asia and the Americas (Obeng-Ofori, 2007). Evaluation of Yardlong Bean and Cowpea for Resistance to Aphis craccivora Koch In Southern Part of The cowpea aphid, Aphis craccivora Koch, is one of the most serious pests of legumes, such as faba bean, cowpea and pea [3]. DAN A. gossypii Glover. Aphis craccivora dari lapangan dibebasviruskan pada daun talas selama semalam. Aphis craccivora and Vigna sesquipedalis 91 and length the midribs were made at intervals for 10 days. Aphis craccivora Koch., is considered one of the most injurious pests infests these plantations, and other leguminous species causes by sucking the plant sap . This research covers multiplication A. craccivora long bean, multiplication B. bassiana in the laboratory International Conference on Agricultural and Animal Science Ipcbee 22: 119-123. On the vetch Vicia sativaand other leguminous plants, Aphis craccivora, Megoura crassicaudaand A. pisumfrequently co-occur and form mixed colonies. Among aphids, A. craccivora is one of the major crop pests infesting over 400 host plants, control Aphis craccivora environmentally. 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.) Kacang tanah (Arachis hypogea L.) merupakan sumber karbohidrat dan protein nabati yang banyak dibutuhkan oleh tubuh. 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. 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. 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. The mortality of cowpea aphid (Aphis craccivora), due to the treatment of chemicals ranged from 50 to 98%. This insect has a wide range of hosts and extensive distribution. 2009). 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