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 ...200415154448
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 ...200919101560
identification of chemicals emitted by calling males of the sapote fruit fly, anastrepha serpentina.emissions from sexually active anastrepha serpentina males were collected by solid-phase microextraction. calling behavior of wild-type males showed no clear peak during the day, except that it was evident less frequently immediately after daybreak and just before dark. calling by laboratory males was highest between 8 and 11 h after onset of the photophase, and mating by wild flies occurred mostly between 6 and 10 h after onset of the photophase. two major components of male emissions were iden ...200919430841
host status of grapefruit and valencia oranges for anastrepha serpentina and anastrepha ludens (diptera: tephritidae).anastrepha serpentina (wiedemann) (diptera: tephritidae) is sporadically captured in the rio grande valley of texas. although its preferred hosts are in the sapotaceae family, several varieties of citrus, including grapefruit and oranges are listed as alternate hosts. although mexican fruit fly, anastrepha ludens (loew), is known to be a major pest of citrus, doubt exists as to the status of citrus as a breeding host for a. serpentina. to evaluate the host status of commercial citrus for a. serp ...201121510184
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 ...201121882684
understanding long-term fruit fly (diptera: tephritidae) population dynamics: implications for areawide management.fruit flies (diptera: tephritidae) are devastating agricultural pests worldwide but studies on their long-term population dynamics are sparse. our aim was to determine the mechanisms driving long-term population dynamics as a prerequisite for ecologically based areawide pest management. the population density of three pestiferous anastrepha species [anastrepha ludens (loew), anastrepha obliqua (macquart), and anastrepha serpentina (wiedemann)] was determined in grapefruit (citrus x paradisi macf ...201222812118
comparison of hydrolyzed protein baits and various grape juice products as attractants for anastrepha fruit flies (diptera: tephritidae).mexican fruit flies, anastrepha ludens (loew; diptera: tephritidae), have traditionally been trapped in citrus orchards in mexico using protein hydrolysates as bait. recently, ceratrap(®), an enzymatic hydrolyzed protein, has emerged as an effective lure for monitoring a. ludens at the orchard level and is currently being used by growers in the region of veracruz. several studies have revealed that grape juice is highly attractive to a. ludens, and recent work supports its potential use for regu ...201626396199
diversity of anastrepha spp. (diptera: tephritidae) and associated braconid parasitoids from native and exotic hosts in southeastern bahia, brazil.we documented fruit fly-host associations and infestation rates over 5 yr in the state of bahia, brazil, by systematically collecting native and introduced fruits in backyard and commercial orchards, experimental stations, and patches of native vegetation. fruit were collected in multiple sites in the southern and southernmost regions of bahia. a total of 942.22 kg from 27 fruit species in 15 plant families was collected throughout this study. of these, 15 plant species from six families were in ...201022546440
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 ...201727847335
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 ...201729202187
first record of anastrepha serpentina (wiedemann) (diptera: tephritidae) in citrus in brazil.anastrepha serpentina (wiedemann) is recorded for the first time in citrus (rutaceae) in brazil. specimens were obtained from sweet orange (citrus sinensis) sampled in the municipalities of belém and capitão poço, and from mandarin orange (citrus reticulata) from tomé-açu, state of pará, brazil.201323939279
male irradiation affects female remating behavior in anastrepha serpentina (diptera: tephritidae).female remating in target pest species can affect the efficacy of control methods such as the sterile insect technique (sit) but very little is known about the postcopulatory mating behavior of these pests. in this study, we investigated the remating behavior of female anastrepha serpentina (diptera: tephritidae), an oligophagous pest of sapotaceae. first, we tested how long the sexual refractory period of females lasted after an initial mating. second, we tested the effect of male and female st ...201626616467
calling behavior of mass-reared and wild anastrepha serpentina (diptera: tephritidae).the calling behavior of mass-reared and wild males of anastrepha serpentina (wiedemann) (diptera: tephritidae) was studied both in the laboratory and in field cage tests. in the laboratory, density (1, 5, and 10 males per container), age, and hour of day significantly affected calling behavior. mass-reared males called independently of density, whereas wild males only called at densities of 5 and 10 individuals. males of both strains started calling when they were 5-7 d old. the daily pattern of ...200717849867
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