INTRODUCTION: Banana bunchy top disease (BBT) is one of the most serious diseases of banana. It stunts the plants and reduces yield severely. The disease is caused by B anana bunchy top virus (BBTV), which is transmitted by banana aphids (Pentalonia nigronervosa Coquerel). The aphids occur widely in Florida, but the pathogen has not bee Banana bunchy top virus is a type (species) of nanovirus. The disease is initially spread in planting material. Once established, the virus is spread locally by an aphid, Pentalonia nigronervosa, a sucking insect which is widely distributed and already present in countries still free from the disease
Banana Bunchy Top Virus Prevention and Cbntrol George Wall Western Pacific Tropical Research Center The most damaging disease of bananas in the Mariana Islands at this time is banana bunchy top, which is caused by a virus. Once a plant becomes infected by the banana bunchy top virus (BBTV) it cannot be cured. All its subsequen Banana bunchy top disease (BBTD) caused by banana bunchy top virus (BBTV) (Babuvirus, Nanoviridae) is one of the most economically important diseases of bananas (Musa spp.) in many production regions, including Asia, Africa and the South Paciﬁc (Dale, 1987). The virus is transmitted in a persistent manner by the banana aphid Banana bunchy top, caused by the Banana bunchy top virus (BBTV), is the most serious viral disease of banana worldwide. BBTV is the type member of the Babuvirus genus in the family Nanoviridae and is a single-stranded (+) sense DNA virus with at least six genomic components that are each packaged in separate virions (Burns et al., 1995) the banana bunchy top disease (bbtd) is a viral disease which is transmitted by a virus called banana bunchy top virus (bbtv). bbtd causes huge losses to banana production and has been identified in some banana plantations on the copperbelt, central and lusaka provinces. zambia cultivates a variety of bananas namely; grande naine Bunchy top of banana pdf Virus species Banana grappoy top virus classification (not categorized:) Realm virus: Monodnaviria United Kingdom: Shotokuvirae Phylum: Cressdnaviricota Class: Arfiviricetes Order: Mulpavirales Family: Nanoviridae Genre: Babuvirus Species: Banana top-notch virus Banana bouque
The Control Of Banana Bunchy Top. Download full The Control Of Banana Bunchy Top Book or read online anytime anywhere, Available in PDF, ePub and Kindle. Click Get Books and find your favorite books in the online library. Create free account to access unlimited books, fast download and ads free Introduction. Banana bunchy top is a viral disease caused by a single-stranded DNA virus called the Banana Bunchy Top Virus (BBTV). It was first identified in Fiji in 1891, and has spread around the world and thereafter from almost all the potential banana growing areas of the world Banana bunchy top disease was identiﬁed for the ﬁrst time in New Caledonia in June 1999. The disease was found only on the south part of the main island, mainly in residential areas and infrequently in commercial banana plantations. Infected plants showed obvious, typical symptoms and an eradication campaign is being undertaken Banana bunchy top disease continues to be the main pest concer n for banana growers across the state. The disease is caused by the banana bunchy top virus (BBTV). The banana aphid, Pentalonia nigronervosa, is the insect vector of the banana bunchy top virus. BBTV was first discovered on O'ahu in 1989. Since then, the disease has been detected. Detecting BBTV in Banana HINTS AND TIPS 167 A PCR-Based Method, With Internal Control, for the Detection of Banana Bunchy Top Virus in Banana Shahid Mansoor, Javaria Qazi, Imran Amin, Abdullah Khatri,1 Imtiaz A. Khan,1 Saboohi Raza,1 Yusuf Zafar, and Rob W. Briddon* Abstract Banana bunchy top disease is a major constraint to banana production in most regions where this crop is grown
Key words: Banana bunchy top disease (BBTD), Musa spp., Pentalonia nigronervosa, virus genome. INTRODUCTION Musa spp. (banana and plantain) is a staple food crop for approximately 400 million people worldwide and nourishes over 70 million people in sub-Saharan Africa (AATF, 2003). This crop is ranked the first in terms o National Banana Bunchy Top Virus Management Project Phase 1 Technical Summary Bunchy Top disease, caused by the Banana Bunchy Top Virus (BBTV) has the potential to destroy Australia's banana industry as it almost did in the 1920's and 1930's after it was introduced in infected planting material from Fiji in 1913 Bunchy top is a viral disease caused by the Banana bunchy top virus (BBTV). The disease, often called BBTD for banana bunchy top disease, gets its name from the bunchy appearance of infected plants. By that time, however, the virus has most likely been spread to other plants by the banana aphid, Pentalonia nigronervosa.Infected plants cannot recover and will serve as a source of viral. Definition. Banana bunchy top is a viral disease caused by a single-stranded DNA virus called the banana bunchy top virus (BBTV). It was first identified in Fiji in 1879, and has spread around the world since then. Like many viruses, BBTV was named after the symptoms seen, where the infected plants are stunted and have bunchy leaves at the top. The disease is transmitted from plant-to-plant.
Virus Free Download Pdf , Free Pdf Books Banana Bunchy Top Virus Download , Read Online Books Banana Bunchy Top Virus For Free Without Downloading. Title: Banana Bunchy Top Virus | mobile.kwc.edu Author: Rachel Sandford - 1998 - mobile.kwc.edu Subject: Download Banana Bunchy Top Virus Banana Bunchy Top Virus The low volume of the sample required for Dot Immuno-Binding Assays is an important advantage over ELISA in analyzing samples without dilution. One advantage of the immune-dot blot technique is that the membranes used to bind the proteins also allow their retentio Banana bunchy top virus (BBTV) is disseminated through infected planting materials. Within the field, the virus is transmitted by the banana aphid, Pentalonia nigronervosa . Symptoms of the disease include dark green spots along the leaf veins, midrib and petiole, upright leaves with wavy margins, stunted growth, more erect leaves giving the. Banana bunchy top virus is a regulated plant pest in New South Wales. This virus is being actively controlled in NSW. Please report suspect symptoms to the National Bunchy Top Hotline 1800 068 371. Banana bunchy top disease is caused by the banana bunchy top virus (BBTV). Typical symptoms are the short, narrow and upright clustering of leaves.
. Banana Bunchy Top Virus (BBTV) Banana bunchy top disease (BBTD) caused by Banana bunchy top virus (family Nanoviridae, genus Babuvirus, BBTV), is one of the most economically important diseases of bananas in most production regions including Asia, Africa, and the South Pacific (Dale 1987, Dale and Harding 1998).The virus was first reported in Hawai'i in 1989 (Ferreira 1991) and has. Banana bunchy top virus is restricted matter under the Biosecurity Act 2014. Under Queensland legislation if you suspect the presence of banana bunchy top, you must report it. If you have seen banana bunchy top within the southern banana biosecurity zone (PDF, 420KB), contact the Banana Bunchy Top Hotline on 1800 068 371
Kenyon L, Brown M, Khonje P, 1997. First report of banana bunchy top virus in Malawi. Plant Disease, 81: 1096. Khalid S, Soomro MH, Stover RH, 1993. First report of banana bunchy top virus in Pakistan. Plant Disease, 77(1):101. Khurana SMP, 1971. Occurrence of the banana aphid and its relation with banana bunchy top disease in Gorakphur (U.P.) Banana Bunchy Top Disease (BBTD) caused by the Banana Bunchy Top Virus (BBTV), is the most serious virus disease of banana and plantain worldwide. Detection of the BBTV infection in the planting material could help in the effective management of the disease in banana. A polymerase chain reactio
2 26 Abstract 27 Banana bunchy top virus (BBTV) is an important disease of banana in the Philippines and in 28 other banana-producing countries. This study was conducted to investigate the genetic structure 29 and diversity of Philippine BBTV isolates which remain unexplored in the country. BBTV-30 infected plant tissues were sampled from banana-growing provinces (i.e., Cagayan, Isabela Hawai'i is the nation's largest banana-growing state producing 16.5 million pounds a year worth $8.1 million (2004). The biggest threat to the crop is banana bunchy top disease (BBTD), which occurs throughout the Pacific Basin and was first reported in Hawai'i in 1989. The disease is caused by banana bunchy top virus (BBTV), efficiently. Banana bunchy top virus (BBTV) has been a major constrain on banana production worldwide. This virus infection is mostly found in banana cultivation. The study aimed to characterize the BBTV on Sumatra wild bananas. The survey to collect seeds and typical symptomatic samples had been done in 2017 and 2019 in West Sumatra Banana bunchy top virus (BBTV) infected plants become stunted and do not usually produce a fruit resulting in 100 per cent yield loss. The disease is caused by a DNA plant virus spread by the banana aphid, Pentalonia nigronervosa, and through infected planting material. There are no identified immune banana cultivars which precludes th Endophytic bacteria induces systemic resistance against Banana Bunchy Top Virus. Applied Soil Ecology 39 (2008): 187-200. University of Hawaii at Manoa Jooste, A.E.C., Wessels, N. and van der Merwe, M., 2016. First Report of Banana bunchy top virus in Banana (Musa spp.) from South Africa. Plant Disease 100, 1251. Contact details
banana bunchy top disease (bbtd) is a major threat to . bananas worldwide, being the virus listed among the world`s worst 100 invasive species as disease eradication . is challenging, the best disease control strategy is prevention of movement of infected plants and . use of virus-free planting Banana Bunchy Top Virus (BBTV) was first reported in American Samoa in 1967. The incidence and distribution of disease, however, had never been established. In March 1999, five survey teams visually inspected approximately 30,000 banana mats at 20 villages and 10 commercial farms on the main island of Tutuila. Ten thousand mats were inspected on four other islands in the territory. The virus. Banana bunchy top virus (BBTV) is recognized as causing the most serious virus disease of bananas worldwide, resulting in complete yield loss in infected plants. BBTV is transmitted by the black banana aphid, Pentalonia nigronervosa, and in infected planting material. BBTD has been present in Australia for over 10
Banana bunchy top virus (BBTV) is a circular, single-stranded (css) DNA virus that belongs to the genus Babuvirus in the family Nanoviridae. BBTV is responsible for the most devastating virus disease of banana known as bunchy top, for which conventional control measures are generally ineffective banana aphid, vector of bunchy top disease. 8. Padding : Stem borers of mango, silk cotton and cashew can be controlled by this method. Bark of infested tree (5 x 5 cm) is removed on three sides leaving bottom as a flap. Small quantity of absorbant cotton is placed in the exposed area and 5-10 ml of Monocrotophos 36 WSP is added using ink. Banana bunchy top disease (BBTD), an invasive and devastating viral disease, is widespread in banana-producing areas in Sub-Saharan Africa. Recovery of banana production in BBTD-affected areas was undertaken in a research project through the CGIAR Research Program on Roots, Tubers and Bananas (CRP-RTB) in eight countries. Understanding household and community dynamics is vital to recovery.
Banana Bunchy Top virus is the most devastating viral disease of bananas worldwide. It poses a major commercial threat to Australia's banana producers, individual businesses and their employees. Bunchy Top Virus has been in Australia for more than 100 years. While it has not been eradicated, it has been containe (a) This control measure applies in the Banana Bunchy Top Virus Control Zone. (b) On the basis that this control measure is reasonably necessary having regard to the nature of the biosecurity risk, this control measure also applies outside the Banana Bunchy Top Virus Control Zone, to the State of New South Wales. 8 Banana bunchy top is the most devastating disease of bananas in Hawaii and in many areas of Asia, Africa and the South Pacific. Because of the high incidence and genetic diversity of Citrus tristeza viruses of the virus and its vector, Hawaii provides an ideal location for the identification and development of CTV resistant crops. The purpose of this project is to do basic and applied research. Banana bunchy top (121) - Widespread distribution. Asia, Africa, Oceania. On bananas and other Musa species. BBT is caused by a virus. It is spread by aphids, and in suckers for planting. Major losses occur in 2-3 years. Dark-green dots and dashes along leaf veins (insert). Cultural control: regular monitoring and removal of plants as soon as BBT seen: (i) kill aphids: spray with kerosene or. Abstract : The bunchy top disease in bananas made its appearance in Australia in 1913, being introduced very probably in infected banana suckers from Fidji. It has since spread through the banana areas of northeast New South Wales and southeastern Queensland, ruining the industry in many centres
Banana bunchy top disease (BBTD) is one of the most economically important diseases in many banana-produc-ing areas of Africa, Asia and the South Paciﬁc (Furuya et al., 2005; Hooks et al., 2009). Between 1913 and 1920, the banana-growing industry in Australia was almost completely destroyed by the disease (Magee, 1927; Hooks et al., 2009) Banana bunchy top is one of the most damaging diseases of banana worldwide and is caused by the banana bunchy top virus (BBTV). Infected banana plants are stunted and produce small, deformed fruits. In advanced stages of the disease, plants do not produce any fruit. Infected banana plants are useless and serve only as a source of the virus Banana bunchy top virus (BBTV) with French Guiana, Guadeloupe, Martinique and Réunion considered as endangered area. Banana bunchy top virus (BBTV) is a well-characterised virus of the family . Nanoviridae, which infects banana and plantain. The Panel examined in detail the risk assessment provided, and considered the accuracy an Banana bunchy top disease is a major constraint to banana production in most regions where this crop is grown. The disease is caused by Banana bunchy top virus (BBTV), a multicomponent, single-stranded DNA virus of the family Nanoviridae. We have designed primers to a conserved region of the master replication-associated protein that are useful for the polymerase chain reaction (PCR)-mediated.
Banana bunchy top virus (BBTV) is an important disease of banana in the Philippines and in other banana-producing countries. This study was conducted to investigate the genetic structure and diversity of Philippine BBTV isolates which remain unexplored in the country. BBTV-infected plant tissues were sampled from banana-growing provinces (i.e., Cagayan, Isabela, Quirino, Batangas, Laguna. Keywords: Banana bunchy top virus, Fusarium wilt, plant immunity, transgenic crops, viral-fungal interaction. INTRODUCTION Fusarium oxysporum is a common soil inhabitant and plant-pathogenic fungus. Fusarium oxysporum has a broad host range and infects both monocotyledonous and dicotyledonous plants (Pietro et al., 2003) Banana bunchy top virus (BBTV) is the most devastating virus disease of bananas. It is present across all of south Asia and the Pacific and is currently spreading in Southern Africa. The disease is causing severe damage in Malawi and DR Congo while it has only recently been recorded in Angola, Mozambique, and Zambia Abstract : Recently symptoms of bunchy top disease were observed in the government banana nursery block at Vila Ulongwe. (1239 masl, 14°32' S and 33°41' E) in Angonia district, Tete Province, western Mozambique and on a commercial banana farm at Chipata town (1108 masl, 13°37' S and 32°37 E) in Chipata district, eastern Zambia
3. Banana bunchy top • Bunchy top virus or Banana virus - 1 or Musa virus-1 • First reported from Fiji in 1889 in Cavendish varieties • Around 1940, introduced into India from Srilanka through cyclone. • Banana bunchy top virus is a ss DNA virus with single isometric particles. 4 It is known to be resistant to BBTD (banana bunchy top disease) as characterized by low incidence and late onset of infection, and black sigatoka disease. FHIA-01 can be grown with considerably less fungicide than that required to control diseases on plantations of current export bananas Babuviruses: Banana bunchy top virus. Banana bunchy top disease is one of the most economically important diseases in many banana- and plantain-producing regions in tropical and subtropical Asia, Australia, Europe, and Africa. The disease was first reported in Fiji in 1879, followed by Taiwan (1890), Egypt (1901), and Australia in 1913
Banana bunchy top virus Banana bunchy top virus (BBTV) is a plant virus of the genus Babuvirus, family Nanonviridae affecting Musa spp. (including banana, abaca, plantain and ornamental bananas) and Ensete spp. in the family Musaceae. Banana bunchy top disease (BBTD) symptoms include dark green streaks of variable length in leaf veins, midribs and petioles Banana bunchy top virus is transmitted by the banana aphid in a circular, nonpropagative, and persistent manner (Di Mattia et al., 2020; Watanabe, Borthakur, & Bressan, 2016). This implies that the virus does not replicate within the vector and can persist in the vector for its whole lifespan Banana: Diseases and Symptoms. Panama wilt. Mycosphaerella leaf spot, yellow sigatoka, black sigatoka. Anthracnose. Moko disease/bacterial wilt. Tip over or bacterial soft rot. Bunchy top/curly top Banana bunchy top virus (BBTV) is a deadly pathogen which affects many areas of the world-wide banana industry. Infected banana plants produce increasingly smaller leaves on shorter petioles giving the plants a bunched appearance. Fruits may be distorted and plants become sterile before the whole mat (rhizome) eventually dies Introduction. This chapter will summarize the basic information discussed in previous chapters and integrate this knowledge together to develop an environmentally friendly and practically feasible integrated disease management (IDM) program specifically targeted at the three groups of diseases that trouble banana production in the Pacific Islands: Banana bunchy top virus (BBTV) transmitted by.
Segmented Banana Chilling injury to fruit One of the less common plantain diseases is exostentialis clittellus referred to by most plantain and banana farmers as segmented banana. This is a result of the peel forming tiny inter-fruit membranes which cause the banana to appear as though it has been sliced before it is peeled You searched for `section 62 of the Biosecurity Act 2015` Showing results 1 - 10 of 1 Banana bunchy top virus (BBTV) causes one of the most devastating diseases of banana. Transgenic virus resistance is now considered one of the most promising strategies to control BBTV. Pathogen-derived resistance (PDR) strategies have been applied successfully to generate plants that are resistant to numerous different viruses, primarily. Photo 1. Banana plants of different ages showing symptoms of Banana bunchy top virus disease. Notice the stunted plants and the colour of the leaves, which are pale yellow at the margins. Photo 2. Symptoms of Banana bunchy top virus. Notice the leaves are upright, stunted and tend to cluster in the throat of the plant; leaves like this are said. Banana bunchy top disease is caused by banana bunchy top virus (BBTV) that belongs to nano virus group. BBTV is a small virus of size 20-22 nm in diameter, consisting of SSDNA with the relative molecular mass of 2.0 x 106 and a coat protein sub-unit with relative molecular mass of 2,000 dalton. The disease is distributed in South-east Asia.
banana bunchy top virus spread in commercial fields 3. Determine disease pa-rameters that are impor-tant to the development of virus management practices Actions A multi-pronged approach has been taken to character-ize banana bunchy top virus and its causes, spread and potential control in Hawai'i. Among steps taken: • Banana plants were sam Management information: Banana Bunchy Top Virus (BBTV) Magnaye and Valmayo (UNDATED) describe a variety of methods that can help readers recognize an infestation: All attempts at mechanical transmission have failed. There is no evidence that BBTV is spread through infected implements used in cultural or harvesting operations
banana bunchy top virus (BBTV) and Fusarium wilt caused by the Fusarium oxysporum f.sp. cubense are the most serious diseases. BBTV is an isometric virus with a circular single stranded DNA (ssDNA) genome consisting of at least six components, BBTV DNA-1 to 6. The virus is transmitted by the banana aphi Banana bunchy top virus DNA sequence can be reliably amplified by PCR from infected bananas eventhough the samples were stored at-200Cfor over 7 months. The primer pair gave the best results in reaction with the temperature of the annealing phase at 35° C. It was possible only to detec and Banana bunchy top disease (BBTD). In most cases, the loss of 90% - 95% was observed in Cavendish variety 6]. Banana bunchy top disease [(BBTD) alone can cause yield losses up to 100% 7]. Therefore,[ it is recognized as the most devastating viral disease of banana in the word, particularly in DRC Banana bunchy top disease is one of the most devastating viral diseases of bananas (Musa spp.) in Asia. It is wide-spread in all banana-producing areas and causes serious problems in most countries. Banana bunchy top viruses (BBTV) are isomeric particles with a single coat protein and contain six single-stranded, circular DNA components SHIRAGI et. al: Eradication of Banana Bunchy Top Virus and Banana Mosaic Virus 19 Materials and Methods The experiment on virus free banana plantlets production by meristem culture and establishment of virus free in vitro plantlets into rooting media was conducted at the Biotechnology Laboratory, Department of Biotechnology, Bangladesh Agricultura
Banana Bunchy Top Virus (BBTV) Banana bunchy top disease (BBTD) caused by Banana bunchy top virus (family Nanoviridae, genus Babuvirus, BBTV), is one of the most economically important diseases of bananas in most production regions including Asia, Africa, and the South Pacific (Dale 1987, Dale and Harding 1998) Banana Bunchy Top Virus (BBTV) is one of the most important diseases of banana. It is caused by a virus and carried over short distances by the banana aphid. Long and short distance spread is by infected pieces of the mat (rhizome), transplanted suckers, or virus-infected tissue culture plants. BBTV was first recorded in Fiji i Banana bunchy top: Banana bunchy top virus Economic Importance The disease is covered by domestic quarantine regulations. Losses were estimated to be Rs.4 crores every year and 100% loss occurs if infected suckers are planted. Symptoms Subsequent leaving show the same symptoms and are dwarfed. Dark broken bands of gree Keywords: Banana bunchy top virus, micropropagation, cDNA, RT-PCR, gene specific Introduction Banana (Musa paradisica L.) is worldwide an important food and cash crop. Banana and plantains are grown in about 120 countries. Banana is a globally important fruit crop with 97.5 million tones of production
Bunchy top disease caused by the banana bunchy top virus (BBTV) is a serious disease in hill banana. Detection of the BBTV infection in the planting material could distinguishable Introduction Banana (Musa spp.) is one of the most important fruit crop in the world (Dale et al., 1987). It is the major staple food crop fo A number of diseases are associated with bananas, including banana bunchy top disease (BBTD) and banana streak disease (BSD), both caused by DNA viruses. BBTD is caused by Banana bunchy top virus (BBTV), a single-stranded DNA (ssDNA) virus (genus Babuvirus; family Nanoviridae). Characteristic symptoms of BBTD are severe stunting of the plant. National Bunchy Top Project Inspector, Ms Samantha Stringer said: Fortunately only one plant was detected with Banana Bunchy Top during our routine inspections, however that is enough to spread the disease quickly. Bunchy Top is a virus that is spread by the banana aphid and by moving infected plant material. I A training workshop on Banana Bunchy Top Disease (BBTD) diagnosis, surveillance and emergency response was held 14 to 16 January 2019 at IITA, Ibadan, Nigeria. The workshop, sponsored by the CGIAR Research Program on Roots, Tubers and Bananas (CRP-RTB), was attended by 20 participants from Togo - Direction de l
Bunchy top of banana is considered as the most serious viral disease and was first recognized in Fiji in 1889. It is always known as a major epidemic and threat to banana cultivation and its export industry (Gowen 1995). Magee (1940) established the viral nature of the disease problem and showed. worldwide. Among viral diseases, Banana Bunchy Top Disease (BBTD) caused by Banana Bunchy Top Virus (BBTV) is known to be the most destructive disease of . Manuscript received May 20, 2017; revised September 12, 2017. the crops. BBTD indiscriminately infects banana and plantain cultivated in the low altitude areas  Banana bunchy top disease was identified for the first time in New Caledonia in June 1999. The disease was found only on the south part of the main island, mainly in residential areas and infrequently in commercial banana plantations. Infected plants showed obvious, typical symptoms and an eradication campaign is being undertaken This study was conducted to determine the prevalence and incidence of Banana Bunchy Top This study was conducted to determine the prevalence and incidence of Banana Bunchy Top Disease (BBTD) in major banana growing regions of Zambia. BBTD is caused by Banana Bunchy Top Virus (BBTV) and is considered the most serious disease of banana (musa spp) worldwide
Banana crop (Musa sp.) is cultivated in more than 120 countries and is an important staple crop for millions of people in several developing regions of the world . Bunchy top disease, caused by Banana Bunchy top virus (BBTV) is one of the most important constraints on banana production in severa Australia: Video released to help growers fight Banana Bunchy Top Banana Bunchy Top is the industry's most devastating viral disease. It is found all around the globe and it is capable of infecting all banana varieties, while also being very hard to detect. In Australia, Bunchy Top is currently contained to Northern New South Wales and South Eas Banana (Musa spp.) production is continuously threatened by numerous pests and diseases. Of the known virus diseases of banana, banana bunchy top disease (BBTD) caused by Banana bunchy top virus (BBTV) is the most serious. BBTD is a major constraint to banana production in many areas of Southeast Asia and the Pacific (Thomas et al. 1994)
Banana Bunchy Top Disease (BBTD) caused by the Banana Bunchy Top Virus (BBTV) is one of the most important banana diseases in the Democratic Republic of Congo. This study focused on the production of BBTV-free plantain seedlings from infected banana plants. A total of 10 suckers from the French plantain Litete (Musa AAB) and the False Horn plantain Libanga Likale (Musa AAB) with advanced BBTD. Banana bunchy top virus has wiped out the hill banana in Tamilnadu. A loss of about 80 million USD annually has been recorded due to BBTV in kerala (Metha et al., 1964). Banana bract mosaic and streak viral diseases of recent origin caused huge economic loss. The most of the commercial cultivars are known to be infected by BBMV. A hardy banana. 1.3 Bunchy top virus: It is a plant pathogenic virus family . nanoviridae. know for infecting banana plant. It is a viral disease caused by single-stranded DNA virus called banana bunchy top virus (BBTV). It affects the banana fruit and foliage. This disease is affected in a tropical region and transmitted from plant to plant. 1.3.1 Appearance Caused by banana bunchy top virus (BBTV), this disease, found in many of the country's production sites, has caused low production and has in most cases stopped production of banana altogether. The losses on both the nutrition and commercial fronts have been huge, affecting households and businesses alike Bunchy top / Curly top / cabbage top /strangles disease 48. Economic impact • First reported from Fiji in 1889 in Cavendish varieties • Around 1940, introduced into India from Srilanka through cyclone • The virus is a domestic quarantine pest in India