| a quantitative comparison of frugivorous tephritids (diptera: tephritidae) in tropical forests and rural areas of the democratic republic of congo. | most of the current knowledge about african tephritids originates from studies performed in agricultural areas, while information about their distribution in pristine or moderately disturbed environments is extremely scarce. this study aims at (i) describing levels of spatial variability of frugivorous tephritids in tropical forests and small rural villages of the congo river basin and (ii) verifying if human-mediated activities, such as small-scale agriculture and trade, can affect their distri ... | 2011 | 21554799 |
| evidence for competitive displacement of ceratitis cosyra by the invasive fruit fly bactrocera invadens (diptera: tephritidae) on mango and mechanisms contributing to the displacement. | bactrocera invadens drew, tsuruta & white (diptera: tephritidae) invaded kenya in 2003. before the arrival of b. invadens, the indigenous fruit fly species ceratitis cosyra (walker) was the predominant fruit fly pest of mango (mangifera indica l.). within 4 yr of invasion, b. invadens has displaced c. cosyra and has become the predominant fruit fly pest of mango, constituting 98 and 88% of the total population in traps and mango fruit at nguruman, respectively. we tested two possible mechanisms ... | 2009 | 19610411 |
| effects of an african weaver ant, oecophylla longinoda, in controlling mango fruit flies (diptera: tephritidae) in benin. | six mango, mangifera indica l., plantations around parakou, northern benin, were sampled at 2-wk intervals for fruit fly damage from early april to late may in 2005. mean damage ranged from 1 to 24% with a weaver ant, oecophylla longinoda (latreille), being either abundant or absent. the fruit fly complex is made up of ceratitis spp. and bactrocera invadens drew et al., a new invasive species in west africa. in 2006, ceratitis spp. peaked twice in the late dry season in early april and early may ... | 2007 | 17598527 |
| field infestation, life history and demographic parameters of the fruit fly bactrocera invadens (diptera: tephritidae) in africa. | field infestation rates of an invasive fruit fly species, bactrocera invadens drew tsuruta & white on mango was determined at different localities in kenya. at most of the locations and especially at low elevations, b. invadens frequently shared the same fruit with the indigenous fruit fly species ceratitis cosyra (walker) but often occurred at higher numbers than c. cosyra. the level of infestation varied with location ranging from 3.0 to 97.2 flies per kg of fruit. there was a significant inve ... | 2006 | 16923206 |
| host range and distribution of fruit-infesting pestiferous fruit flies (diptera, tephritidae) in selected areas of central tanzania. | the host range of major fruit fly pests in central tanzania was evaluated from october 2004 to october 2006. samples of 48 potential hosts were collected and incubated for fruit fly emergence. bactrocera invadens was the dominant species in incidence expressed as the ratio of infested to total number samples collected, as well as infestation rate, expressed as number of flies emerging per unit weight. eight new host fruits are reported. infestation by native pests, such as ceratitis capitata and ... | 2009 | 19323850 |
| niche overlap of congeneric invaders supports a single-species hypothesis and provides insight into future invasion risk: implications for global management of the bactrocera dorsalis complex. | the invasive fruit fly, bactrocera invadens, has expanded its range rapidly over the past 10 years. here we aimed to determine if the recent range expansion of bactrocera invadens into southern africa can be better understood through niche exploration tools, ecological niche models (enms), and through incorporating information about bactrocera dorsalis s.s., a putative conspecific species from asia. we test for niche overlap of environmental variables between bactrocera invadens and bactrocera d ... | 2014 | 24587234 |
| dominance of an invasive fruit fly species, bactrocera invadens, along an altitudinal transect in morogoro, eastern central tanzania. | bactrocera invadens, a fruit fly from asia, is an invasive pest species across africa. it appears to continue spreading, not only in latitude but also in altitude. to assess its capacity to infest a large variety of hosts and its competition with other fruit fly species, a study along an altitudinal gradient was conducted. at low altitudes, the high abundance in the field and high infestation of b. invadens in different fruit species make it a serious pest. at high altitudes, colonization has st ... | 2014 | 24485004 |
| identification of host blends that attract the african invasive fruit fly, bactrocera invadens. | bactrocera invadens, an invasive fruit fly species in the afro-tropical region belonging to the bactrocera dorsalis complex, causes considerable damage to fruit production and productivity. we sought to find attractants from hosts of b. invadens that could serve as baits in traps for monitoring and management of this pest. the attractiveness of volatiles from four different fruit species (mango, guava, banana and orange) at two stages of ripeness (ripe or unripe) was tested in an olfactometer as ... | 2014 | 25236383 |
| towards area-wide control of bactrocera invadens: prospects of the sterile insect technique and molecular entomology. | it is 10 years since the first detection of the invader fruit fly, bactrocera invadens, in sub-saharan africa. the pest continues to hamper fruit production and create barriers to trade. strategies currently employed to control b. invadens are insufficient, and more effective area-wide strategies are needed. the sterile insect technique and molecular entomology approaches have high potential and could help to bring about effective area-wide control of the pest if adopted and used as components o ... | 2014 | 24293246 |
| cold tolerance and disinfestation of bactrocera invadens (diptera: tephritidae) in 'hass' avocado. | bactrocera invadens (diptera: tephritidae) has spread rapidly across africa and currently poses a phytosanitary threat to the fruit industry of south africa. in reaction a cold mitigating treatment to provide phytosanitary security to importing countries was developed in nairobi, kenya. using laboratory reared fruit flies, the rate of development in 'hass' avocado (persea americana miller) was determined at 28 degrees c. fruit ripeness or softness was found to be a factor improving larval fruit ... | 2012 | 23356059 |
| phytosanitary treatments against bactrocera dorsalis (diptera: tephritidae): current situation and future prospects. | bactrocera dorsalis (hendel) (diptera: tephritidae) is arguably the most important tephritid attacking fruits after ceratitis capitata (wiedemann) (diptera: tephritidae). in 2003 it was found in africa and quickly spread to most of the sub-saharan part of the continent, destroying fruits and creating regulatory barriers to their export. the insect is causing new nutritional and economic losses across africa, as well as the losses it has caused for decades in infested areas of asia, new guinea, a ... | 2017 | 28028169 |
| resolving cryptic species complexes of major tephritid pests. | an fao/iaea co-ordinated research project (crp) on "resolution of cryptic species complexes of tephritid pests to overcome constraints to sit application and international trade" was conducted from 2010 to 2015. as captured in the crp title, the objective was to undertake targeted research into the systematics and diagnostics of taxonomically challenging fruit fly groups of economic importance. the scientific output was the accurate alignment of biological species with taxonomic names; which led ... | 2015 | 26798252 |
| comparative sensitivity to methyl eugenol of four putative bactrocera dorsalis complex sibling species - further evidence that they belong to one and the same species b. dorsalis. | males of certain species belonging to the bactrocera dorsalis complex are strongly attracted to, and readily feed on methyl eugenol (me), a plant secondary compound that is found in over 480 plant species worldwide. amongst those species is one of the world's most severe fruit pests the oriental fruit fly, bactrocera dorsalis s.s., and the former taxonomic species bactrocera invadens, bactrocera papayae and bactrocera philippinensis. the latter species have been recently synonymised with bactroc ... | 2015 | 26798265 |
| mating compatibility between bactrocera invadens and bactrocera dorsalis (diptera: tephritidae). | the invasive fruit fly, bactrocera invadens drew, tsuruta & white, is a highly polyphagous fruit pest that occurs predominantly in africa yet has its origins in the indian subcontinent. it is extremely morphologically and genetically similar to the oriental fruit fly, bactrocera dorsalis (hendel); as such the specific relationship between these two species is unresolved. we assessed prezygotic compatibility between b. dorsalis and b. invadens using standardized field cage mating tests, which hav ... | 2014 | 24772542 |
| development of phytosanitary cold treatments for oranges infested with bactrocera invadens and bactrocera zonata (diptera: tephritidae) by comparison with existing cold treatment schedules for ceratitis capitata (diptera: tephritidae). | phytosanitary cold treatments were tested for bactrocera invadens drew, tsuruta, and white and bactrocera zonata (saunders) using comparisons with ceratitis capitata (wiedemann). oranges were infested by puncturing holes in the peel and allowing tephritids to oviposit in the holes. the treatments were initiated when the larvae reached late third instar because previous research had shown that stage to be the most cold tolerant for all three species. results show that b. invadens is not more cold ... | 2013 | 24020272 |
| host use of bactrocera latifrons, a new invasive tephritid species in tanzania. | bactrocera latifrons (hendel) is a pest of asian origin, first detected in africa in 2006. we assessed the host utilization of this quarantine pest in morogoro region, eastern central tanzania, by collecting a wide range of cultivated and wild host plants of species belonging to solanaceae and cucurbitaceae from april 2007 to april 2008. fruit were collected from 29 plant species and varieties (16 solanaceae and 13 cucurbitaceae) in all agroecological zones of morogoro region. twelve solanaceous ... | 2010 | 20214370 |
| effectiveness of spinosad bait sprays (gf-120) in controlling mango-infesting fruit flies (diptera: tephritidae) in benin. | effectiveness of gf-120 (dow chemical) fruit fly bait containing the insecticide spinosad in controlling mango-infesting fruit flies (diptera: tephritidae) was assessed by comparing treated orchards with untreated orchards. twelve mango, mangifera indica l., plantations located in six villages (two similar orchards per village: one orchard treated and orchard untreated) scattered in the borgou department (northern benin) were monitored weekly with fly traps, and the fruit was sampled twice for l ... | 2009 | 19449630 |
| comparison of food-based attractants for bactrocera invadens (diptera: tephritidae) and evaluation of mazoferm-spinosad bait spray for field suppression in mango. | catches of bactrocera invadens drew, tsuruta, & white (diptera: tephritidae) in multi-lure traps baited with six commercial food-based attractants, mazoferm e802, torula yeast, gf-120, hymlure, biolure, and nulure were compared in mango orchards in kenya. in 2007, mazoferm e802 and torula yeast were the most effective attractants and captured 2.4-2.6 times more females and 3.4-4.0 times more males than the standard nulure. all attractants captured more females than males (ranging from 63 to 74%) ... | 2014 | 24665714 |
| isolation and characterization of microsatellite markers in the newly discovered invasive fruit fly pest in africa, bactrocera invadens (diptera: tephritidae). | we describe the isolation and characterization of 11 polymorphic microsatellite loci from the recently discovered fruit fly pest, bactrocera invadens. the polymorphism of these loci was tested in individual flies from two natural populations (sri lanka and democratic republic of congo). allele number per locus ranged from three to 15 and eight loci displayed a polymorphic information content greater than 0.5. these microsatellite loci provide useful markers for studies of population dynamics and ... | 2008 | 21586091 |
| bactrocera invadens (diptera: tephritidae), a new invasive fruit fly pest for the afrotropical region: host plant range and distribution in west and central africa. | in 2003, the invasive fruit fly bactrocera invadens drew, tsuruta & white (diptera: tephritidae) (drew et al. 2005), of possible sri lankan origin, has been detected in the east and about 1 yr later in west africa. in regular surveys in benin and cameroon covering 4 yr, samples from 117 plant species across 43 families have been obtained. incubation of field-collected fruits demonstrate that in west and central africa (wca) b. invadens is highly polyphagous, infesting wild and cultivated fruits ... | 2011 | 22251685 |
| historical perspective on the synonymization of the four major pest species belonging to the bactrocera dorsalis species complex (diptera, tephritidae). | an fao/iaea-sponsored coordinated research project on integrative taxonomy, involving close to 50 researchers from at least 20 countries, culminated in a significant breakthrough in the recognition that four major pest species, bactrocera dorsalis, bactrocera philippinensis, bactrocera papayae and bactrocera invadens, belong to the same biological species, bactrocera dorsalis. the successful conclusion of this initiative is expected to significantly facilitate global agricultural trade, primaril ... | 2015 | 26798266 |
| the potential distribution of bactrocera dorsalis: considering phenology and irrigation patterns. | a species in the bactrocera dorsalis (hendel) complex was detected in kenya during 2003 and classified as bactrocera invadens drew, tsuruta & white. having spread rapidly throughout africa, it threatens agriculture due to crop damage and loss of market access. in a recent revision of the b. dorsalis complex, b. invadens was incorporated into the species b. dorsalis. the potential distribution of b. dorsalis has been previously modelled. however, previous models were based on presence data and di ... | 2016 | 26487373 |
| future risks of pest species under changing climatic conditions. | most agricultural pests are poikilothermic species expected to respond to climate change. currently, they are a tremendous burden because of the high losses they inflict on crops and livestock. smallholder farmers in developing countries of africa are likely to suffer more under these changes than farmers in the developed world because more severe climatic changes are projected in these areas. african countries further have a lower ability to cope with impacts of climate change through the lack ... | 2016 | 27054718 |
| uncovering the tracks of a recent and rapid invasion: the case of the fruit fly pest bactrocera invadens (diptera: tephritidae) in africa. | phytophagous insects of the genus bactrocera are among the most economically important invasive fruit fly pests. in 2003, an unknown bactrocera species was found in kenya. first identified as an 'aberrant form' of the asian b. dorsalis complex, it was later recognized as a new species, bactrocera invadens. within 2 years of its discovery, the species was recorded in several african countries, becoming an important quarantine pest. as this invasive fly was discovered only recently, no data are av ... | 2009 | 19821903 |
| status of bactrocera invadens (diptera: tephritidae) in mango-producing areas of arba minch, southwestern ethiopia. | bactrocera invadens, the asian fruit fly, was first reported in kenya in 2003, and it spread fast to most tropical countries in africa. to our knowledge, there is no detailed data on the fruit damage and status of fruit flies in arba minch and elsewhere in ethiopia. hence, information on the species composition and pest status of the fruit fly species is urgent to plan management strategies in the area. fruit flies were captured using male parapheromone-baited traps. matured mango (mangifera ind ... | 2015 | 25612742 |
| indigenous and invasive fruit fly diversity along an altitudinal transect in eastern central tanzania. | the relative abundance of indigenous and invasive frugivorous fruit flies (diptera: tephritidae) was evaluated spatially and temporally along an altitudinal transect between 581-1650 m in the uluguru mountains near morogoro, tanzania. the polyphagous invasive fruit fly bactrocera invadens drew, tsuruta, and white and the indigenous fruit fly ceratitis rosa karsch show a similar temporal pattern, but are largely separated spatially, with b. invadens being abundant at lower elevation and c. rosa p ... | 2012 | 22935017 |
| ecological niche and potential geographic distribution of the invasive fruit fly bactrocera invadens (diptera, tephritidae). | two correlative approaches to the challenge of ecological niche modeling (genetic algorithm, maximum entropy) were used to estimate the potential global distribution of the invasive fruit fly, bactrocera invadens, based on associations between known occurrence records and a set of environmental predictor variables. the two models yielded similar estimates, largely corresponding to equatorial climate classes with high levels of precipitation. the maximum entropy approach was somewhat more conserv ... | 2010 | 19323851 |
| epicuticular chemistry reinforces the new taxonomic classification of the bactrocera dorsalis species complex (diptera: tephritidae, dacinae). | bactrocera invadens drew, tsuruta & white, bactrocera papayae drew & hancock, and bactrocera philippinensis drew & hancock, key pest species within the bactrocera dorsalis species complex, have been recently synonymized under the name bactrocera dorsalis (hendel). the closely related bactrocera carambolae drew & hancock remains as a discrete taxonomic entity. although the synonymizations have been accepted by most researchers, debate about the species limits remains. because of the economic impo ... | 2017 | 28873446 |
| cytogenetic and symbiont analysis of five members of the b. dorsalis complex (diptera, tephritidae): no evidence of chromosomal or symbiont-based speciation events. | the bactrocera dorsalis species complex, currently comprising about 90 entities has received much attention. during the last decades, considerable effort has been devoted to delimiting the species of the complex. this information is of great importance for agriculture and world trade, since the complex harbours several pest species of major economic importance and other species that could evolve into global threats. speciation in diptera is usually accompanied by chromosomal rearrangements, part ... | 2015 | 26798263 |
| taxonomic identity of the invasive fruit fly pest, bactrocera invadens: concordance in morphometry and dna barcoding. | in 2003, a new fruit fly pest species was recorded for the first time in kenya and has subsequently been found in 28 countries across tropical africa. the insect was described as bactrocera invadens, due to its rapid invasion of the african continent. in this study, the morphometry and dna barcoding of different populations of b. invadens distributed across the species range of tropical africa and a sample from the pest's putative aboriginal home of sri lanka was investigated. morphometry using ... | 2012 | 23028649 |
| cold susceptibility and disinfestation of bactrocera invadens (diptera: tephritidae) in oranges. | to develop a cold disinfestation treatment for the fruit fly bactrocera invadens drew, tsuruta & white (diptera: tephritidae) that is rapidly spreading across africa, research was conducted in nairobi, kenya, using flies from a laboratory culture and 'valencia' orange (citrus sinensis l. osbeck) as the host. the developmental rate of b. invadens in valencia oranges was determined at 28 degrees c, and the third instar was found to be the least susceptible of the egg and larval life stages to cold ... | 2011 | 21882681 |
| abundance of african invader fly, bactrocera invadens drew, tsuruta and white (diptera: tephritidae) and influence of weather parameters on trap catches in mango in the volta region of ghana. | the seasonal abundance of african invader fly, bactrocera invadens and the influence of temperature and rainfall on fly catches was determined in two agro ecological zones; moist semi-deciduous forest area and the coastal grassland area of the volta region of ghana for year of mango production. traps containing methyl eugenol were used in monitoring the abundance of the africa invader fly, bactrocera invadens where data on both temperature and rainfall were collected from meteorological services ... | 2016 | 27429878 |
| comparison of in vitro heat and cold tolerances of the new invasive species bactrocera invadens (diptera: tephritidae) with three known tephritids. | bactrocera invadens drew, tsuruta & white (diptera: tephritidae) is spreading throughout central africa attacking a variety of fruit; quarantines are placed on fruit from this region that are considered hosts. the only phytosanitary treatment that is commercially available is an ionizing irradiation treatment for all tephritidae at 150 gy. the development of other treatments, such as heat, cold, or fumigation, usually requires testing tens of thousands of insects at a dose that provides efficacy ... | 2011 | 21404834 |