From the differences between cranberry tipworm and blueberry gall midge sequences, diagnostic PCR primer sets were developed that distinguish the two populations.
Out of 6 blueberry gall midge sequences submitted to NCBI (HQ542186, HQ542187, HQ542188, HQ542189, HQ542190 and HQ542191) from different farms, the 3 sequences HQ542187, HQ542188 and HQ542190 were identical.
1%) between cranberry tipworm (Table 3: #1, 2 and 3) and blueberry gall midge (Table 3: #4, 5, 6 and 7) but low divergence within cranberry tipworm (%D = 0-1.
In the neighbor-joining tree, the sequences from cranberry tipworm, blueberry gall midge and other Dasineura species from NCBI GenBank separated into 3 distinct clusters: blueberry gall midge from Pitt Meadows, British Columbia, and from Britain; cranberry tipworm from Pitt Meadows, British Columbia; and the 5 other species of Dasineura from GenBank (Fig.
Blueberry gall midge adult emergence data in the field were collected with emergence traps placed at a blueberry farm in Gainesville, FL.
Blueberry gall midge pupates in the soil; therefore, containers were prepared with substrates into which larvae could burrow and pupate.
Two models were used to estimate the lower temperature threshold, c, and the thermal constant, K, for the blueberry gall midge pupal stage.
Key words: gall midge
, predator, avocado lace bug, Persea americana
eds, New approaches to gall midge
resistance in rice.
Parasitoid-mediated AR has previously been observed in the interactions of the gall midge Asphondylia borrichiae Rossi & Strong (Diptera: Cecidomyiidae) with 2 of its host species, Borrichia frutescens (L.
The attractant decoy hypothesis and other explanatory mechanisms requiring host switching by the gall midge are unlikely, given that host choice experiments showed minimal cross-genus oviposition by A.
Effects of large-scale host plant addition and removal on parasitoid-mediated associational resistance in the gall midge Asphondylia borrichiae.
In particular, midges that develop in Borrichia are statistically larger and genetically distinct from the populations associated with the 2 species of Iva and much evidence suggests that the original host plant of the gall midge was sea oxeye daisy (B.
This study investigated whether the largest parasitoid, Torymus umbilicatus, exhibits HAD in size that is consistent with its gall midge host.
The importance of gall size for sea daisy gall midge parasitoids.