Within a few days, nymphs mature into reproductive adults and 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. The mortality of cowpea aphid (Aphis craccivora), due to the treatment of chemicals ranged from 50 to 98%. Aphis craccivora Koch., is considered one of the most injurious pests infests these plantations, and other leguminous species causes by sucking the plant sap . control Aphis craccivora environmentally. (HEMIPTERA: APHIDIDAE) IN LONG BEAN (Vigna sinensis L.) WITH ROOT FUNGUS TREATMENT R. Miftha Huljanna 05071281621036 … Kamper, Kampus IPB Dramaga, Bogor 16680 triadys@yahoo.com ABSTRACT Yambean mosaic virus is the most important virus infècting yam bean in Indonesia. Aphids ( Aphis craccivora Koch) are an important vegetative stage pest of cowpea in Africa. On the vetch Vicia sativaand other leguminous plants, Aphis craccivora, Megoura crassicaudaand A. pisumfrequently co-occur and form mixed colonies. 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. Nilai LC hasil analisis probit hari ke-5 M. anisopliae terhadap A. craccivora. 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]. 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. Identifikasi kutudaun dilakukan berdasarkan kunci identifikasi Blackman & Eastop (2000). is an insect that causes considerable damage to the production of yardlong bean in many countries. A. craccivora adults are mostly shiny black or dark brown, variable in size, being It causes direct damage and also has an indirect effect as insect vector of the Bean common mosaic virus (BCMV). 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. Aphis craccivora initially infests cowpea seedlings, but as this plant develops, it may infest flowers and pods (Berberet et al. Due to heavy 2012. Kutudaun yang lahir dipelihara pada tanaman kacang panjang sehat. 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). 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. This Research was conducted on October until December 2013 in Plant Protection Laboratory of Agriculture Faculty the University of Bengkulu. Aphis craccivora a polyphagous aphid species with a preference for Fabaceae. Efisiensi Penularan Virus Mozaik Bengkuang dengan Aphis craccivora Koch. 2009). The application of vegetable insecticides from papaya leaf extract is expected to reduce the presence of pests. 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. DAN A. gossypii Glover. APHIS CRACCIVORA KOCH. 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. The aphids Aphis gossypii Glover (Ramalho et al. Common names. 2012) and Aphis craccivora Koch (Hemiptera: Heteroptera: Aphididae) (Moraes and Ramalho 1980) are serious crop pests in Brazil. 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 … 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.) Benchasri, S., C. Bairaman and C. Nualsri. Cowpea aphid, Black legume aphid, Groundnut aphid.. Distribution. International Conference on Agricultural and Animal Science Ipcbee 22: 119-123. The life cycle for A. craccivora recorded at daily basis. A. craccivora and their predator Cheilomenes sexmaculata found abundantly in the localities of northeast Bihar [4]. Adults suck plant sap and cause serious damage right from the seedling to pod bearing stage craccivora menyebabkan... Particularly common in warm temperate and tropical regions an insect that causes considerable damage to the production of yardlong and. 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