| feeding activity and attraction of blueberry maggot (diptera: tephritidae) to protein baits, ammonium acetate, and sucrose. | attraction and feeding assays were conducted on blueberry maggot, rhagoletis mendax curran, to three protein baits, ammonium acetate, and sucrose. flies fed significantly longer on concentrations of 25 and 50% solbait than they did on any of the concentrations tested for nu-lure, ay50% (mauri yeast australia), or a water control. the number of flies arriving at solbait in an attraction assay was significantly higher than for nu-lure and a water control but was not different from ay50%. flies fed ... | 2004 | 15384337 |
| association and attraction of blueberry maggot fly curran (diptera: tephritidae) to pantoea (enterobacter) agglomerans. | the attraction of washed, medium-free cells of pantoea (enterobacter) agglomerans to wild, adult rhagoletis mendax curran, the blueberry maggot fly, was evaluated in managed blueberry fields in maine. attraction was evaluated using pherocon am and ladd traps, each tested with or without washed bacterial cells. field studies showed significant increases in fly captures on the pherocon am traps. apple volatiles odors on ladd traps seemed to cancel the effects of bacterial odors. aerobic heterotrop ... | 2009 | 19791604 |
| comparative effectiveness of different insecticides for organic management of blueberry maggot (diptera: tephritidae). | laboratory and field assays using insecticides for organic pest management were conducted on the blueberry maggot, rhagoletis mendax curran. topical exposure of flies to spinosad (entrust), pyrethrum (pyganic 1.4 ec), azadirachtin (aza-direct), and phosmet (imidan 70-w) resulted in significantly higher mortality compared with the water control after 2 and 24 h. after 24 h, there were no significant differences in fly mortality among treatments of entrust, pyganic, or imidan, whereas fly mortalit ... | 2005 | 16156576 |
| field type, trap type and field-edge characteristics affect rhagoletis mendax captures in lowbush blueberries. | blueberry maggot, rhagoletis mendax curran (diptera: tephritidae), is the most important pest of blueberries in eastern north america. insecticide use in fruit-bearing lowbush blueberry fields could be reduced with management strategies focused on vegetative fields. fly distribution and fruit infestation levels were assessed where fruit-bearing and vegetative fields adjoin and along forested edges of vegetative fields. | 2014 | 24357556 |
| integrated pest management of rhagoletis mendax (diptera: tephritidae) in lowbush blueberry using vegetative field management. | economic control of rhagoletis mendax was achieved by applying insecticidal sprays to commercial lowbush blueberry vegetative fields, in a biennial production system, rather than to the fruiting fields, when the threshold was exceeded. the viability of this integrated pest management of r. mendax for lowbush blueberries was demonstrated over a 9-yr interval in new brunswick where three sites were monitored for 2 yr, eight sites for 4 yr, and one site for 9 yr. control of r. mendax in lowbush blu ... | 2002 | 12403422 |
| emergence of blueberry maggot flies (diptera: tephritidae) from mulches and soil at various depths. | control of blueberry maggot, rhagoletis mendax curran, typically is achieved with insecticides targeting adult flies before females oviposit in ripening fruit. management strategies targeting other life stages have received less attention. we tested effects of compost or pine needle mulches on emergence of blueberry maggot flies under laboratory and field conditions. few flies emerged from pupae that were buried under 20 cm of pine needles in all experiments, but burial in 20 cm of compost did n ... | 2012 | 22507011 |
| native vaccinium spp. and gaylussacia spp. infested by rhagoletis mendax (diptera: tephritidae) in the great lakes region: a potential source of inoculum for infestation of cultivated blueberries. | in this study, we addressed the question of whether or not native stands of blueberry (vaccinium spp.) and/or huckleberry (gaylussacia spp.) support populations of blueberry maggot, rhagoletis mendax curran, in the great lakes region. infestation of commercial blueberries by the blueberry maggot, r. mendax, is a serious problem in many areas where blueberries are grown. in the past 10-20 yr, commercial bighbush blueberry, vaccinium corymbosum l., production has expanded into places such as south ... | 2001 | 11777039 |
| evaluation of various deployment strategies of imidacloprid-treated spheres in highbush blueberries for control of rhagoletis mendax (diptera: tephritidae). | biodegradable, ammonium-baited spheres treated with the neonicotinoid insecticide provado (imidacloprid) at 2% (ai) were evaluated for controlling blueberry maggot flies, rhagoletis mendax curran. three strategies for sphere deployment in highbush blueberries, vaccinium corymbosum l., were compared with untreated control plots in 1999 and once again compared against control plots and organophosphate insecticide sprays in 2000. the patterns of sphere deployment were as follows: (1) perimeter depl ... | 2001 | 11561850 |
| extreme cold temperature to kill blueberry maggot (diptera: tephritidae) in reusable containers. | pupae of the blueberry maggot, rhagoletis mendax curran (diptera: tephritidae), were subjected to -20 degrees c for 2, 4, 7, 10, and 15 d (control = 0 d at 4 degrees c) in fall 2011 and 2012 and were allowed to overwinter for at least 181 d at 4 degrees c. mean adult emergence in the control was 64% in 2012 and 39% in 2013. no adults emerged in may 2012 from 500 pupae treated for > 2 d at -20 degrees c in fall 2011. two adults emerged in may 2013 from 100 pupae treated for 2 d at -20 degrees c i ... | 2014 | 25026646 |
| recognition of foreign oviposition-marking pheromone in a multi-trophic context. | both phytophagous and parasitic insects deposit oviposition-marking pheromones (omps) following oviposition that function to inform conspecifics of a previously utilized host of reduced suitability. the blueberry maggot fly, rhagoletis mendax curran (diptera: tephritidae), deposits eggs individually into blueberries and then marks the fruit surface with an omp which reduces acceptance of fruit for oviposition by conspecifics. diachasma alloeum (muesebeck) (hymenoptera: braconidae) is a parasitic ... | 2009 | 19151965 |
| kaolin affects blueberry maggot behavior on fruit. | this study assessed the effects of surround (kaolin) on several behavioral parameters of female blueberry maggot, rhagoletis mendax curran (diptera: tephritidae). first fruit visited, walking, cleaning, and oviposition behavior were quantified in two-choice and no-choice assays where females encountered surround-treated and untreated fruit of highbush blueberries (vaccinium spp.). in two-choice assays, females had a propensity (68%) to first visit untreated blueberries. in two-choice and no-choi ... | 2008 | 18330125 |
| the chemosensory basis for behavioral divergence involved in sympatric host shifts ii: olfactory receptor neuron sensitivity and temporal firing pattern to individual key host volatiles. | the rhagoletis species complex has been a key player in the sympatric speciation debate for much of the last 50 years. studies indicate that differences in olfactory preference for host fruit volatiles could be important in reproductively isolating flies infesting each type of fruit via premating barriers to gene flow. single sensillum electrophysiology was used to compare the response characteristics of olfactory receptor neurons from apple, hawthorn, and flowering dogwood-origin populations of ... | 2006 | 16315070 |
| the chemosensory basis for behavioral divergence involved in sympatric host shifts. i. characterizing olfactory receptor neuron classes responding to key host volatiles. | the recent shift of rhagoletis pomonella from its native host hawthorn to introduced, domestic apple has been implicated as an example of sympatric speciation. recent studies suggest that host volatile preference might play a fundamental role in host shifts and subsequent speciation in this group. single sensillum electrophysiology was used to test a proposed hypothesis that differences in r. pomonella olfactory preference are due to changes in the number or odor specificity of olfactory recepto ... | 2006 | 16315069 |
| evaluation of traps and toxicants in an attract-and-kill system for rhagoletis mendax (diptera: tephritidae). | a series of laboratory and field assays were performed to evaluate new methods for an attract-and-kill approach to control blueberry maggot, rhagoletis mendax curran. in laboratory assays, fly mortality was similar among insecticide-treated matted paper, plastic, and biodegradable sphere traps. plastic and biodegradable traps baited with ammonium acetate captured significantly more flies than baited matted paper traps in field assays, whereas fly captures were similar in baited matted paper trap ... | 2004 | 15666758 |
| behavioral evidence for host fidelity among populations of the parasitic wasp, diachasma alloeum (muesebeck). | the concept of "host fidelity," where host-specific mating occurs in close proximity to the oviposition site and location of larval development, is thought to impart a pre-mating isolation mechanism for sympatric speciation (sensu members of the genus rhagoletis). the apple maggot fly, rhagoletis pomonella, and the blueberry maggot fly, r. mendax, are morphologically similar sibling species thought to have speciated in sympatry by divergence of host plant association. both of these fly species a ... | 2005 | 15605254 |
| comparison of neonicotinoid insecticides for use with biodegradable and wooden spheres for control of key rhagoletis species (diptera: tephritidae). | field-based studies and laboratory bioassays were conducted with apple maggot, rhagoletis pomonella (walsh), and blueberry maggot, rhgoletis mendax curran, flies to investigate the performance and duration of activity of insecticide-treated biodegradable and wooden spheres for control of rhagoletis species. four neonicotinoid insecticide treatments including imidacloprid, thiamethoxam, and thiocloprid at 2% (ai) were evaluated with biodegradable spheres. in 1999, significantly more apple maggot ... | 2001 | 11681677 |
| effectiveness of thiamethoxam-coated spheres against blueberry maggot flies (diptera: tephritidae). | studies were conducted to evaluate the mortality of blueberry maggot, rhagoletis mendax curran, flies exposed to thiamethoxam- and imidacloprid-coated biodegradable (8-cm-diameter) red spheres, under both laboratory and field conditions. laboratory studies with spheres coated with 0.1-2.0% (ai) of thiamethoxam indicated that they are effective against r. mendax; however, no dose-dependent response was observed. studies on the effect of visitation time on thiamethoxam-coated spheres showed a decr ... | 2000 | 11057720 |
| effect of trap size, placement, and age on captures of blueberry maggot flies (diptera: tephritidae). | ammonium acetate and protein hydrolysate baited and unbaited green spheres (3.6, 9.0, and 15.6 cm diameter) were evaluated for effectiveness in capturing blueberry maggot flies, rhagoletis mendax curran. early in the season, baited spheres (9.0 cm diameter) captured significantly more r. mendax flies than spheres of 3.6 and 15.6 cm diameter. as the season progressed, the differences in trap captures became less pronounced among the 3.6-, 9.0-, and 15.6-cm-diameter spheres. in other experiments, ... | 2000 | 11057717 |
| protection of fruit against infestation by apple maggot and blueberry maggot (diptera: tephritidae) using compounds containing spinosad. | two insecticide formulations containing the naturalyte insecticide spinosad, gf-120 fruit fly bait and spintor 2 sc, were compared for control of apple maggot, rhagoletis pomonella (walsh), and blueberry maggot, rhagoletis mendax curran. in 2002 and 2003, larval infestation in blueberries and apples was significantly lower in plots treated with gf-120 (spinosad bait) or spintor than in untreated control plots. fruit fly infestation in apples was reduced by 67% in 2002 after weekly application of ... | 2005 | 15889735 |
| lethal and sublethal effects of chlorantraniliprole on three species of rhagoletis fruit flies (diptera: tephritidae). | chlorantraniliprole formulated as a 350 g kg(-1) wg (altacor 35wg) for management of apple maggot rhagoletis pomonella (walsh), blueberry maggot r. mendax curran and cherry fruit fly r. cingulata (loew) (diptera: tephritidae) was evaluated in laboratory assays and field trials. | 2009 | 18937218 |