| effects of gf-120 fruit fly bait concentrations on attraction, feeding, mortality, and control of rhagoletis indifferens (diptera: tephritidae). | effects of different concentrations of gf-120 nf naturalyte fruit fly bait on attraction and feeding responses, mortality, and control of the western cherry fruit fly, rhagoletis indifferens curran, were determined. in the laboratory, flies that had been exposed to sugar and yeast extract and then deprived of all food for 16-20 h were attracted to 40.0% gf-120, but not to 0.6 and 4.8% gf-120 (vol:vol). nonstarved flies were not attracted to any concentration. flies in the field were not attracte ... | 2005 | 16334336 |
| feeding substrates and behaviors of western cherry fruit fly (diptera: tephritidae). | a study was conducted to determine the abundance of potential foods and the feeding substrates and behaviors of the western cherry fruit fly, rhagoletis indifferens curran (diptera: tephritidae), in 2005, 2006, and 2007 in central washington state. aphid colonies with honeydew, a presumed food source for flies, were not seen on randomly selected branches of sweet cherry trees, prunus avium l., but leaves with cherry juice, fruit that were damaged, and leaves with bird feces were commonly seen, e ... | 2008 | 18348808 |
| susceptibility of preimaginal western cherry fruit fly, rhagoletis indifferens (diptera: tephritidae) to beauveria bassiana (balsamo) vuillemin clavicipitaceae (hypocreales). | last-instar larvae of the western cherry fruit fly, rhagoletis indifferens, were subjected to beauveria bassiana gha incorporated into sterile sand and non-sterile orchard soil. mycosis in the pupal stage was observed in >20% of buried r. indifferens pupae and >80% of larvae entering sand treated with either of two b. bassiana isolates. when pre-pupal larvae burrowed into conidium-treated non-sterile cherry orchard soil, the incidence of mycosis, on both the puparia and internally developing pup ... | 2010 | 20171971 |
| mortality and oviposition of western cherry fruit fly (diptera: tephritidae) exposed to different insecticide baits for varying periods in the presence and absence of food. | spinosad bait is used to control western cherry fruit fly, rhagoletis indifferens curran (diptera: tephritidae), by killing flies before they oviposit. however, effects of different insecticide baits on management of reproductively mature flies are largely unknown. objectives here were to determine mortality and oviposition of reproductively mature r. indifferens exposed to different insecticide baits for varying periods in the presence and absence of dried yeast extract and sucrose food. spinos ... | 2011 | 21404858 |
| potential for high hydrostatic pressure processing to control quarantine insects in fruit. | tests were conducted to determine the potential for high hydrostatic pressure (hpp) to control codling moth, cydia pomonella (l.), and western cherry fruit fly, rhagoletis indifferens curran. apples (malus spp.) with codling moth larvae or eggs were treated at 24 and 72 h, respectively, after infestation at a series of pressures between 14,000 and 26,000 pounds per inch2 (psi). survivorship was determined the next day for larvae and after 10 d for eggs. codling moth eggs were more tolerant of hp ... | 2007 | 17972625 |
| impact of prolonged absence of low temperature on adult eclosion patterns of western cherry fruit fly (diptera: tephritidae). | western cherry fruit fly, rhagoletis indifferens (curran) (diptera: tephritidae), is a serious pest of cherries (prunus spp.) in the pacific northwest of the united states. previous research suggests that r. indifferens is unlikely to establish in commercial cherry production areas in california and in tropical export markets because cold temperatures, below 5 °c, in those regions appear insufficient to complete diapause. however, it is unclear how prolonged absence of cold exposure affects diap ... | 2017 | 28369322 |
| temperature-mediated kill and oviposition of western cherry fruit fly (diptera: tephritidae) in the presence of spinosad. | western cherry fruit fly, rhagoletis indifferens curran (diptera: tephritidae), is a quarantine pest of sweet cherry (prunus avium (l.) l.) that is managed using insecticides, including spinosad, an organic compound that can be applied in low spray volumes. identifying factors that can increase the efficacy of spinosad can be useful for improving fly control. here, the major objective was to determine if temperature mediates kill and oviposition of r. indifferens in the presence of low spinosad ... | 2016 | 26352751 |
| chilling and host plant/site-associated eclosion times of western cherry fruit fly (diptera: tephritidae) and a host-specific parasitoid. | the western cherry fruit fly, rhagoletis indifferens curran (diptera: tephritidae), is an endemic herbivore of bitter cherry, prunus emarginata (douglas ex hooker) eaton, but ∼100 years ago established on earlier-fruiting domesticated sweet cherry, prunus avium (l.) l. here, we determined if eclosion times of adult r. indifferens from sweet and bitter cherry differ according to the phenology of their respective host plants and if eclosion times of the host-specific parasitoid diachasma muliebre ... | 2015 | 26314048 |
| seasonal distributions of the western cherry fruit fly (diptera: tephritidae) among host and nonhost fruit trees. | seasonal distributions of the western cherry fruit fly, rhagoletis indifferens curran (diptera: tephritidae), in sweet cherry (prunus avium (l.) l.) (major host), black hawthorn (occasional developmental host) (crataegus douglasii lindley), and other trees were determined in a ponderosa pine ecosystem in washington state, usa. the hypothesis that most fly dispersal from cherry trees occurs after fruit senesce or drop was tested, with emphasis on movement to black hawthorn trees. sweet cherry fru ... | 2014 | 25527581 |
| assessing the potential for establishment of western cherry fruit fly using ecological niche modeling. | sweet cherries, prunus avium (l.) l., grown in the western united states are exported to many countries around the world. some of these countries have enforced strict quarantine rules and trade restrictions owing to concerns about the potential establishment and subsequent spread of western cherry fruit fly, rhagoletis indifferens curran (diptera: tephritidae), a major quarantine pest of sweet cherry. we used 1) niche models (climex and maxent) to map the climatic suitability, 2) north carolina ... | 2014 | 25026662 |
| captures of rhagoletis indifferens (diptera: tephritidae) and nontarget insects on red spheres versus yellow spheres and panels. | sticky red spheres can be used to capture western cherry fruit fly, rhagoletis indifferens curran (diptera: tephritidae), but red spheres have not been definitively shown to be more attractive than yellow traps. the objective of this study was to compare fly captures on ammonia-baited red spheres and yellow spheres and panels so that sensitive detection traps for fly management can be identified. nontarget insects could interfere with fly captures, so weights of nontarget insects on traps were a ... | 2013 | 24224253 |
| genetic identification of an unknown rhagoletis fruit fly (diptera: tephritidae) infesting chinese crabapple: implications for apple pest management. | the apple maggot, rhagoletis pomonella (walsh) (diptera: tephritidae), is a serious introduced quarantine pest in the apple (malus spp.)-growing regions of central washington and oregon. in august 2011, seven fly larvae of unknown origin were discovered infesting fruit of an exotic chinese crabapple, malus spectabilis (aiton) borkhausen, in kennewick, benton county, wa. if confirmed, chinese crabapple would have represented a new host for r. pomonella in washington and triggered quarantine measu ... | 2013 | 23865221 |
| influence of media type and moisture on adult development and pupal mortality in rhagoletis indifferens (diptera: tephritidae). | the influence of media type and moisture on adult development and pupal mortality in western cherry fruit fly, rhagoletis indifferens curran (diptera:tephritidae), was assessed using the pupal-adult and the larval-pupal stage. inside containers, a higher percent of flies that emerged from dry loam was deformed (44.2%, 1-cm-depth loam; 84.4%, 5-cm-depth loam) than flies from 16% moist loam and dry and 16% moist lab soil (peat moss-sand mix) (0-14.9%). percent of flies deformed from dry sand (22.1 ... | 2013 | 23726070 |
| niche differentiation and colonization of a novel environment by an asexual parasitic wasp. | how do asexual taxa become adapted to a diversity of environments, and how do they persist despite changing environmental conditions? these questions are linked by their mutual focus on the relationship between genetic variation, which is often limited in asexuals, and the ability to respond to environmental variation. asexual taxa originating from a single ancestor present a unique opportunity to assess rates of phenotypic and genetic change when access to new genetic variation is limited to mu ... | 2013 | 23517017 |
| differences in body size and egg loads of rhagoletis indifferens (diptera: tephritidae) from introduced and native cherries. | the western cherry fruit fly, rhagoletis indifferens curran, infests introduced, domesticated sweet [prunus avium (l.) l.], and tart cherries (prunus cerasus l.) as well as native bitter cherry, prunus emarginata (douglas) eaton. bitter cherries are smaller than sweet and tart cherries and this could affect various life history traits of flies. the objectives of the current study were to determine 1) if body size and egg loads of flies infesting sweet, tart, and bitter cherries differ from one a ... | 2011 | 22217749 |
| characterization of microsatellite loci for the western cherry fruit fly, rhagoletis indifferens (diptera: tephritidae). | the western cherry fruit fly (rhagoletis indifferens) is a major pest of cherry crops in western north america, yet relatively little is known about its population structure or movement patterns due to the difficulty of studying these parameters directly in the field. we isolated and characterized a set of 16 polymorphic microsatellite loci specific to r. indifferens that display sufficient polymorphism to assess genetic structure and movement patterns. all 16 loci amplified in one or more other ... | 2009 | 21564827 |
| seasonal amounts of nutrients in western cherry fruit fly (diptera: tephritidae) and their relation to nutrient availability on cherry plant surfaces. | relatively little is known about the nutritional ecology of fruit flies in the genus rhagoletis. in this study, nutrient amounts in male and female western cherry fruit fly, rhagoletis indifferens curran, and availability of nitrogen and sugar on surfaces of leaves, fruit, and extrafloral nectaries (efns) of sweet cherry trees, were determined from late may to late june 2005 and of sugar from efns from mid-may to late june 2007 in washington state. protein amounts in male and female flies did no ... | 2008 | 19036186 |
| pupal mortality and adult emergence of western cherry fruit fly (diptera: tephritidae) exposed to the fungus muscodor albus (xylariales: xylariaceae). | western cherry fruit fly, rhagoletis indifferens curran (diptera: tephritidae), is a major pest of sweet cherry, prunus avium (l.) l. (rosales: rosaceae), that is conventionally controlled using insecticides. one alternative to the use of insecticides alone for fly control could be fumigation of the fly's overwintering habitat using the fungus muscodor albus worapong, strobel & hess (xylariales: xylariaceae) in conjunction with reduced insecticide use. the fungus produces a mixture of volatile o ... | 2009 | 20069829 |
| combined heat and controlled atmosphere quarantine treatments for control of western cherry fruit fly in sweet cherries. | nonchemical quarantine treatments, using a combination of short duration high temperatures under low oxygen, elevated carbon dioxide atmospheric environment were developed to control western cherry fruit fly, rhagoletis indifferens curran, in sweet cherries, prunus avium (l.). the two treatments developed use a chamber temperature of 45 degrees c for 45 min and a chamber temperature of 47 degreesd c for 25 min, both under a 1% oxygen, 15% carbon dioxide, -2 degrees c dew point environment. both ... | 2006 | 16813295 |
| influence of habitat structure and resource availability on the movements of rhagoletis indifferens (diptera: tephritidae). | habitat structure and resources availability may differentially influence movement between habitat patches. we examined fly movement decisions (stay or leave) at the scale of individual trees by measuring the response of marked rhagoletis indifferens (diptera: tephritidae) to sweet cherry trees (prunus avium) that were manipulated by changing the shape of the tree (structure treatment = normal or reduced) and the fruit load (fruit treatment = augmented, normal, or reduced). more than 600 observa ... | 2009 | 19508793 |
| genetic evidence for the introduction of rhagoletis pomonella (diptera: tephritidae) into the northwestern united states. | the apple maggot fly, rhagoletis pomonella walsh (diptera: tephritidae), is a serious quarantine pest in the apple-growing regions of central washington and oregon. the fly is believed to have been introduced into the pacific northwest via the transport of larval-infested apples near portland, oregon, within the last 40 yr. however, r. pomonella also attacks native black hawthorn, crataegus douglasii lindley (rosales: rosaceae), and introduced ornamental hawthorn, crataegus monogyna jacquin, in ... | 2017 | 29029209 |
| attraction of adult rhagoletis indifferens (diptera: tephritidae) to unbaited and odor-baited red spheres and yellow rectangles. | five sizes of red spheres (4, 6, 8, 10, and 12 cm diameter) and 2 orientations of yellow rectangles (vertical and v) were evaluated as unbaited sticky-coated traps for western cherry fruit flies, rhagoletis indifferens curran, in unmanaged cherry trees in washington and oregon. red spheres that were 10 cm in diameter attracted more flies than red spheres that were 8 or 12 cm in diameter and significantly more flies than 4- or 6-cm spheres and yellow rectangles of either orientation. in a 2nd tes ... | 2000 | 10826184 |
| oviposition in sweet cherry by reproductively mature western cherry fruit fly (diptera: tephritidae) fed spinosad and neonicotinoid insecticide baits. | western cherry fruit fly, rhagoletis indifferens curran (diptera: tephritidae),is a major pest of sweet cherry, prunus avium (l.) l., in the pacific northwest of the united states. spinosad bait is applied weekly to kill flies before they develop eggs, but its effects on oviposition by reproductively mature flies are unknown. in this study, the main objective was to identify insecticide bait treatments that can prevent oviposition after being ingested by reproductively mature r. indifferens. fir ... | 2010 | 20429452 |
| evaluation of yellow rectangle traps coated with hot melt pressure sensitive adhesive and sticky gel against rhagoletis indifferens (diptera: tephritidae). | sticky yellow rectangle traps have been used for many years to capture rhagoletis (diptera: tephritidae) fruit flies. traditional sticky yellow traps are coated with a sticky gel (sg) that can leave residues on the hands of users. an alternative to sg on traps are hot melt pressure sensitive adhesives (hmpsas), which are less messy. the main objective here was to evaluate two rectangle traps of two yellow colors, the alpha scents yellow card coated with hmpsa (alpha scents, west linn, or), and t ... | 2011 | 21735911 |
| effects of spinosad, spinosad bait, and chloronicotinyl insecticides on mortality and control of adult and larval western cherry fruit fly (diptera: tephritidae). | effects of spinosad, spinosad bait, and the chloronicotinyl insecticides imidacloprid and thiacloprid on mortality of the adults and larvae of western cherry fruit fly, rhagoletis indifferens curran (diptera: tephritidae), were determined in the laboratory and the field. spinosad and spinosad bait caused higher adult mortality than imidacloprid, which caused higher mortality than thiacloprid. only spinosad bait prevented oviposition. all materials were more toxic to adults when ingested than whe ... | 2006 | 17066805 |