| nonhost status of commercial persea americana 'hass' to anastrepha ludens, anastrepha obliqua, anastrepha serpentina, and anastrepha striata (diptera: tephritidae) in mexico. | the objective of this study was to determine the host status in mexico of commercially cultivated and marketed avocado, persea americana (mill.), 'hass' to anastrepha ludens (loew), anastrepha obliqua (macquart), anastrepha serpentina (wiedemann), and anastrepha striata (schiner) (diptera: tephritidae). experiments in michoacán, mexico, were carried out in six orchards located at three altitudes above sea level during two times (august-october 2001 and april-june 2002). they included choice ('ha ... | 2004 | 15154448 |
| larval feeding substrate and species significantly influence the effect of a juvenile hormone analog on sexual development/performance in four tropical tephritid flies. | the juvenile hormone (jh) analog methoprene reduces the amount of time it takes laboratory-reared anastrepha suspensa (caribbean fruit fly) males to reach sexual maturity by almost half. here, we examined if methoprene exerted a similar effect on four other tropical anastrepha species (anastrepha ludens, anastrepha obliqua, anastrepha serpentina and anastrepha striata) reared on natural hosts and exhibiting contrasting life histories. in the case of a. ludens, we worked with two populations that ... | 2009 | 19101560 |
| Anastrepha ludens and Anastrepha serpentina (Diptera: Tephritidae) do not infest Psidium guajava (Myrtaceae), but Anastrepha obliqua occasionally shares this resource with Anastrepha striata in nature. | This study examined whether economically important fruit fly species Anastrepha ludens (Loew), Anastrepha serpentina (Wiedemann), and Anastrepha obliqua (Macquart) (Diptera: Tephritidae) may opportunistically exploit guavas, Psidium guajava L. (Myrtaceae), growing near preferred natural hosts. We collected 3,459 kg of guavas and 895 kg of other known host species [sour orange, Citrus aurantium L.; grapefruit, Citrus paradisi Macfadyen; mango, Mangifera indica L.; white sapote, Casimiroa edulis L ... | 2011 | 21882684 |
| species of anastrepha (diptera: tephritidae) captured in a guava orchard (psidium guajava l., myrtaceae) in boa vista, roraima, brazil. | the guava fruit (psidium guajava) is among the most strongly affected by fruit flies in brazil. in the brazilian amazon, 11 species of anastrepha have been reported in guava orchards to date. this work aimed to identify the species of anastrepha present in a guava orchard in the municipality of boa vista, determine the species infesting the fruits, and identify any parasitoids present. two mcphail traps with food bait were installed and weekly collections were made between january and december 2 ... | 2013 | 24789406 |
| faunistic analysis of the species of anastrepha schiner (diptera: tephritidae) in three municipalities of the state of roraima, brazil. | the purpose of this work was to describe the population patterns of anastrepha in three municipalities of the state of roraima, brazil, via faunistic analysis. weekly collections were performed from january through december 2008, using mcphail traps containing 5% hydrolysed protein, in domestic orchards in the municipalities of boa vista, bonfim and pacaraima. we captured 301 females of anastrepha in boa vista, 212 in bonfim, and 167 in pacaraima. boa vista presented the highest species richness ... | 2012 | 23295509 |
| olfactory response of anastrepha striata (diptera: tephritidae) to guava and sweet orange volatiles. | the behavioral responses of virgin and mated female anastrepha striata schiner (diptera: tephritidae) to guava (psidium guajava l.) or sweet orange (citrus sinensis l.) were evaluated separately using multilure traps in two-choice tests in field cages. the results showed that flies were more attracted to guava and sweet orange volatiles than to control (unbaited trap). the physiological state (virgin or mated) of females did not affect their attraction to the fruit volatiles. combined analysis o ... | 2016 | 25800723 |
| limits to the host range of the highly polyphagous tephritid fruit fly anastrepha ludens in its natural habitat. | anastepha ludens (diptera: tephritidae) is a highly polyphagous fruit fly that is able to develop in a wide range of hosts. understanding the limits of this pest's host range could provide valuable information for pest management and plant breeding for pest resistance. previous studies have shown that guavas (psidium guajava (myrtaceae) l.), are not attacked under natural conditions by a. ludens. to understand this phenomenon, guavas were exposed to natural infestation by a. ludens and to other ... | 2015 | 26343267 |
| sex pheromone of anastrepha striata. | the guava fruit fly, anastrepha striata, is a pest of several cultivated species of myrtaceae in the american tropics and subtropics. during calling, a. striata males release numerous volatiles. this study was conducted to identify which of the male volatiles function as the a. striata sex pheromone and to investigate the effects of age and time of day on the emission of pheromone components. analysis of the volatiles from males collected by solid phase microextraction using gas chromatography c ... | 2015 | 25912228 |
| survey of heritable endosymbionts in southern mexico populations of the fruit fly species anastrepha striata and a. ludens. | heritable endosymbiotic bacteria associated with insects are ubiquitous and taxonomically diverse. many of these endosymbionts influence the fitness of their hosts and/or manipulate their host reproduction. exploiting the effects of endosymbionts on hosts for pest control is a growing research area, but requires knowledge of endosymbionts associated with the target pest population. in this study, we used molecular methods to screen southern mexico populations of two species of tephritid fruit fl ... | 2012 | 22961037 |
| patterns of inner chorion structure in anastrepha (diptera: tephritidae) eggs. | the inner chorion structure of anastrepha eggs from 16 species of various infrageneric taxonomic groups is described by scanning and transmission electron microscopy. the layers of the chorion, the outer egg membrane, are structurally similar. furthermore, an additional trabecular layer (atl) that exists in some species, together with other characteristics, facilitates the recognition of four patterns of chorion structuring: pattern i, in which the atl layer is absent, is found in anastrepha ami ... | 2017 | 27847335 |
| genetic diversity and population structure of anastrepha striata (diptera: tephritidae) in three natural regions of southwestern colombia using mitochondrial sequences. | anastrepha striata is widely distributed across the americas and is a pest of economically important crops, especially crops of the myrtaceae family. insect population structures can be influenced by the presence of physical barriers or characteristics associated with habitat differences. this study evaluated the effect of the western andes on the population structure of a. striata. individuals were collected from psidium guajava fruits from three natural regions of southwestern colombia (pacifi ... | 0 | 28093669 |
| co-infestation and spatial distribution of bactrocera carambolae and anastrepha spp. (diptera: tephritidae) in common guava in the eastern amazon. | field infestation and spatial distribution of introduced bactrocera carambolae drew and hancock and native species of anastrepha in common guavas [psidium guajava (l.)] were investigated in the eastern amazon. fruit sampling was carried out in the municipalities of calçoene and oiapoque in the state of amapá, brazil. the frequency distribution of larvae in fruit was fitted to the negative binomial distribution. anastrepha striata was more abundant in both sampled areas in comparison to anastreph ... | 2016 | 27638949 |
| identifying anastrepha (diptera; tephritidae) species using dna barcodes. | molecular identification of fruit flies in the genus anastrepha (diptera; tephritidae) is important to support plant pest exclusion, suppression, and outbreak eradication. morphological methods of identification of this economically important genus are often not sufficient to identify species when detected as immature life stages. dna barcoding a segment of the mitochondrial cytochrome oxidase i gene has been proposed as a method to identify pests in the genus. the identification process for the ... | 2017 | 29202187 |