| techniques for monitoring cranberry tipworm (diptera: cecidomyiidae) in rabbiteye and southern highbush blueberries. | several monitoring techniques were evaluated for their effectiveness, based on the highest mean captures of cranberry tipworm, dasineura oxycoccana (johnson), in detecting d. oxycoccana in rabbiteye, vaccinium ashei reade, and southern highbush, v. corymbosum l. x v. darrowi camp, blueberry plantings. there were no significant differences in captures of d. oxycoccana adults on unbaited sticky board traps, regardless of color (yellow, white, green, or blue). in a separate experiment, three monito ... | 2003 | 14977121 |
| physiological integration plays key role in cranberry (ericales: ericaceae) for tolerance of damage by dasineura oxycoccana (diptera: cecidomyiidae). | understanding the mechanisms by which plants tolerate herbivory is important in the study of insect-plant interactions. in cranberry, current season growth has been identified as the main source of photosynthate for the developing fruits. feeding injury by larvae of cranberry tipworm, dasineura oxycoccana johnson, disrupts the apical growth of cranberry shoots or uprights, but does not impact fruit output. to study the effects of experimentally depleting photosynthate available from sources othe ... | 2014 | 24398156 |
| evaluation of emergence traps for monitoring blueberry gall midge (diptera: cecidomyiidae) adults and within field distribution of midge infestation. | the blueberry gall midge, dasineura oxycoccana (johnson) (diptera: cecidomyiidae), is a key pest of rabbiteye blueberry, vaccinium virgatum aiton, in the southeastern united states, but it has not been studied extensively and little is known about its ecology and management. studies were conducted to develop an improved method for monitoring d. oxycoccana adults and to determine the within-field distribution of infestation. four emergence traps were evaluated in an organic rabbiteye blueberry pl ... | 2010 | 20857735 |
| injury to apical meristem of cranberry by dasineura oxycoccana (diptera: cecidomyiidae) reduces production of floral-units in the next growing season. | cranberry tipworm, dasineura oxycoccana johnson (a gall-making fly), disrupts normal growth of cranberry (vaccinium macrocarpon aiton) by injuring the apical meristem of shoots or uprights. the impact of larval feeding injury on reproductive parameters of cranberry was determined, from one growing season to next, at upright (maine and massachusetts, 2008-2009) and plot levels (massachusetts, 2009-2010 and 2010-2011). we also estimated the proportions of uprights injured because of tipworm feedin ... | 2012 | 22928318 |
| impact of early season apical meristem injury by gall inducing tipworm (diptera: cecidomyiidae) on reproductive and vegetative growth of cranberry. | larvae of cranberry tipworm, dasineura oxycoccana johnson, disrupt early season growth of cranberry (vaccinium macrocarpon aiton) uprights or shoots by feeding on apical meristem tissue. a 2-yr field study was carried out at three different locations to determine the impact of tipworm feeding injury on the reproductive and vegetative growth of two cranberry cultivars ('howes' and 'stevens') in massachusetts. in addition to tipworm-injured and intact control uprights, an artificial injury treatme ... | 2013 | 23865200 |
| field distribution of dasineura oxycoccana (diptera: cecidomyiidae) adults, larvae, pupae, and parasitoids and evaluation of monitoring trap designs in florida. | blueberry gall midge, dasineura oxycoccana (johnson), is a pest of cultivated blueberries throughout the world. larvae feed and develop in developing leaf buds, and also in flower buds of rabbiteye blueberries, which causes buds to fall off the plant. these injuries can cause up to 80% yield loss in heavy infestations. as the larvae are protected from insecticides, adults must be targeted with foliar applications. consequently, the detection of adults through an effective monitoring program is c ... | 2014 | 24665715 |
| parasitism of dasineura oxycoccana (diptera: cecidomyiidae) in north central florida. | blueberry gall midge, dasineura oxycoccana (johnson), is a key pest of blueberries in florida. as a larva, this insect feeds in developing flower and leaf buds. management of d. oxycoccana relies principally on chemical insecticides; however, efficacy is limited because d. oxycoccana is sheltered within the plant during most of its life cycle. natural enemies, particularly parasitoids, may play an important role in regulating d. oxycoccana populations. to determine the seasonal dynamics and para ... | 2013 | 23726050 |
| biology and efficacy of aprostocetus (eulophidae: hymenoptera) as a parasitoid of the blueberry gall midge complex: dasineura oxycoccana and prodiplosis vaccinii (diptera: cecidomyiidae). | in the southeastern united states, bud-infesting larvae of two gall midge species, dasineura oxycoccana (johnson) and prodiplosis vaccinii (felt), destroy from 20 to 80% of the rabbiteye blueberry crop, vaccinium virgatum aiton (syn. v. ashei reade). these midge larvae are attacked by five species of parasitoid wasps. the most effective of these is the bivoltine eulophid aprostocetus sp. nr. marylandensis (eulophidae), whose adults constitute one-third of the gall midge parasitoids, active in bo ... | 2013 | 23448017 |
| assessing the economic importance of dasineura oxycoccana (diptera: cecidomyiidae) in northern highbush blueberries. | infestation by blueberry gall midge, dasineura oxycoccana johnson, is common in northern highbush blueberries, but its effects on crop productivity are unknown. we examined whether infestation by blueberry gall midge reduces flower bud production when compared with uninfested shoots, and how infestation at different times affects the crop response. from the fall of 2009 to the spring of 2011, the number of flower buds on infested and uninfested shoots of blueberry bushes was counted and compared ... | 2015 | 26470334 |
| distribution and phenology of dasineura oxycoccana (diptera: cecidomyiidae) in michigan blueberries. | the blueberry gall midge, dasineura oxycoccana johnson, is a serious pest of rabbiteye blueberries in florida, georgia, and mississippi, and a potential pest of southern and northern highbush blueberries. its damage has been observed with increasing frequency in highbush blueberry plantings in the great lakes region, including in wisconsin and in michigan. unlike in rabbiteye blueberry plantings, where blueberry gall midge primarily damages flowering buds, it is found to damage only the vegetati ... | 2012 | 22732602 |
| phenology of dasineura oxycoccana (diptera: cecidomyiidae) on cranberry and blueberry indicates potential for gene flow. | dasineura oxycoccana (johnson) (diptera: cecidomyiidae) is a pest of cranberry, vaccinium macrocarpon (aiton) (ericales: ericaceae), and highbush blueberry, vaccinium corymbosum (l.) (ericales: ericaceae), in north america. in british columbia, canada, d. oxycoccana was first found on highbush blueberry in 1991 and then on cranberry seven years later. because many cranberry and highbush blueberry farms are adjacent to one another, we hypothesized that d. oxycoccana was moving from highbush blueb ... | 2012 | 22928299 |
| populations of the gall midge dasineura oxycoccana on cranberry and blueberry produce and respond to different sex pheromones. | we identified and field-tested the sex pheromones of dasineura oxycoccana (johnson) (diptera: cecidomyiidae) midges collected from cranberry, vaccinium macrocarpon aiton, and from highbush blueberry, vaccinium corymbosum l., commonly named cranberry tipworm (ctw) and blueberry gall midge (bgm), respectively. coupled gas chromatographic-electroantennographic detection (gc-ead) analyses of pheromone gland extract from the ovipositor of calling ctw females revealed one component (<10 pg per oviposi ... | 2013 | 23297107 |