DAN A. gossypii Glover. This Research was conducted on October until December 2013 in Plant Protection Laboratory of Agriculture Faculty the University of Bengkulu. tain aphids, viz. Yardlong Bean for Resistance to Bean Aphids (Aphis craccivora Koch). 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. Aphis craccivora. (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,. 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 Kacang tanah (Arachis hypogea L.) merupakan sumber karbohidrat dan protein nabati yang banyak dibutuhkan oleh tubuh. 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. Identifikasi kutudaun dilakukan berdasarkan kunci identifikasi Blackman & Eastop (2000). 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 Salah satu hama yang banyak menyerang tanaman kacang tanah adalah kutudaun Aphis craccivora yang menyebabkan kerusakan yang cukup besar pada tanaman kacang tanah. is an insect that causes considerable damage to the production of yardlong bean in many countries. 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. Aphis craccivora is one of the important pests on yard long bean. 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 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 … Aphids ( Aphis craccivora Koch) are an important vegetative stage pest of cowpea in Africa. Aphis craccivora initially infests cowpea seedlings, but as this plant develops, it may infest flowers and pods (Berberet et al. Aphis craccivora is one of the serious pest of Phaseolus sinensis and Lablab purpureus. On the vetch Vicia sativaand other leguminous plants, Aphis craccivora, Megoura crassicaudaand A. pisumfrequently co-occur and form mixed colonies. This insect has a wide range of hosts and extensive distribution. The aphids Aphis gossypii Glover (Ramalho et al. Further several studies have been made on its biology and predatory efficiency [5-7]. nymph of A. craccivora per polybag on both the PGPR-application plants and the control-application plants. (HEMIPTERA:APHIDIDAE) PADA TANAMAN KACANG PANJANG (Vigna sinensis L.) DENGAN PERLAKUAN JAMUR AKAR DEVELOPMENT RESPONSE OF Aphis craccivora Koch. 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]. LC 50% : 1,2 x 106 dan LC 75% : 5,2 x 108, sedangkan 2012) and Aphis craccivora Koch (Hemiptera: Heteroptera: Aphididae) (Moraes and Ramalho 1980) are serious crop pests in Brazil. A. craccivora caused pod shrivelling at the young and … Eggs develop within the mother and nymphs are born live. 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. 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. control Aphis craccivora environmentally. Aphis craccivora Koch., is considered one of the most injurious pests infests these plantations, and other leguminous species causes by sucking the plant sap . Efisiensi Penularan Virus Mozaik Bengkuang dengan Aphis craccivora Koch. Cowpea aphid, Black legume aphid, Groundnut aphid.. Distribution. The mortality of cowpea aphid (Aphis craccivora), due to the treatment of chemicals ranged from 50 to 98%. Worldwide in distribution, but particularly common in warm temperate and tropical regions. lmidacioprid 17.8 SL at 0.005 % concentration recorded highest … 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]. Tri Asmira Damayanti* Endah Muliarti* Dewi Sartiami* *Departemen Proteksi Tanaman, Fakultas Pertanian IPB Jl. 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 life cycle for A. craccivora recorded at daily basis. The application of vegetable insecticides from papaya leaf extract is expected to reduce the presence of pests. APHIS CRACCIVORA KOCH. 2012. Aphis craccivora is one of the important pests in Leguminoceae in Indonesia. Aphis Craccivora Koch Rakhshan1, Md. A. craccivora adults are mostly shiny black or dark brown, variable in size, being 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. Kamper, Kampus IPB Dramaga, Bogor 16680 triadys@yahoo.com ABSTRACT Yambean mosaic virus is the most important virus infècting yam bean in Indonesia. 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). It causes direct damage and also has an indirect effect as insect vector of the Bean common mosaic virus (BCMV). 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. Both nymphs and adults suck plant sap and cause serious damage right from the seedling to pod bearing stage. These insects directly damage the plants by sucking the phloem, and indirectly by virus transmission and excretion of excess carbohydrates from their diet of 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. In this study, the endosymbiotic mi-crobiotae in A. craccivora and M. crassicauda collected from different localities in Japan were investigated in compar- (HEMIPTERA: APHIDIDAE) IN LONG BEAN (Vigna sinensis L.) WITH ROOT FUNGUS TREATMENT R. Miftha Huljanna 05071281621036 … Aphis craccivora dari lapangan dibebasviruskan pada daun talas selama semalam. International Conference on Agricultural and Animal Science Ipcbee 22: 119-123. 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. This research covers multiplication A. craccivora long bean, multiplication B. bassiana in the laboratory Evaluation of Yardlong Bean and Cowpea for Resistance to Aphis craccivora Koch In Southern Part of Aphis craccivora Koch (Homoptera: Aphidi-dae) is a major insect pest of cowpea in Africa, Asia and the Americas (Obeng-Ofori, 2007). Aphis craccivora is an efficient 2009). Aphis craccivora a polyphagous aphid species with a preference for Fabaceae. Among aphids, A. craccivora is one of the major crop pests infesting over 400 host plants, Kemudian kutudaun dipindahkan pada tanaman sakit dan dibiarkan hingga muncul populasi kutudaun bersayap. RESPON PERKEMBANGBIAKAN Aphis craccivora Koch. Aphis craccivora and Vigna sesquipedalis 91 and length the midribs were made at intervals for 10 days. The cowpea aphid, Aphis craccivora Koch, is one of the most serious pests of legumes, such as faba bean, cowpea and pea [3]. Nilai LC hasil analisis probit hari ke-5 M. anisopliae terhadap A. craccivora. Kutudaun yang lahir dipelihara pada tanaman kacang panjang sehat. Aphis craccivora Koch. 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. Entomopatogen merupakan salah satu agen hayati yang berpotensi untuk mengendalikan berbagai hama, dan aman … 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. 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