caa a22 4500 388092742 CHVBK 20180307125256.0 cr unu---uuuuu 161130e199908 xx s 000 0 eng 10.4039/Ent131549-4 doi S0008347X00010166 pii (NATIONALLICENCE)cambridge-10.4039/Ent131549-4 GAMMA RADIATION DOSES FOR PREVENTING PUPARIATION AND ADULT EMERGENCE OF RHAGOLETIS MENDAX (DIPTERA: TEPHRITIDAE) [Elektronische Daten] Blueberry maggot, Rhagoletis mendax Curran, eggs and larvae infesting highbush 'Bluecrop' and 'Elizabeth' blueberries, Vaccinium corymbosum L. (Ericaceae), were treated with 4-1200 Gy of gamma radiation. The treatment reduced the number of immature stages that pupated and the number of adults that emerged from puparia. The lethal dose for 99.9968% mortality (LD 99.9968%) [lower and upper fiducial limits (FL)] estimated by linear regression analysis to stop pupariation was 1486 (1400-1585) Gy, at the 95% confidence level. The LD 99.99968% (lower and upper FL) estimated to stop flies emerging from puparia irradiated as immature stages was 88 (83-93) Gy, at the 95% confidence level as estimated by regression analysis. An estimated 100 762 larvae were killed, with no survivors, by irradiating 853 918 'Bluecrop' blueberries in bulk quantities with 71-776 Gy with a commercial irradiator. No flies or parasites emerged from puparia irradiated as larvae with ≥ 71 and > 80 Gy using commercial and research irradiators, respectively. Infestation rate of blueberry maggot larvae in nonirradiated 'Bluecrop' and 'Elizabeth' blueberries averaged 11.1 ± 1.2% and 14.3 ± 2.4%, respectively; the range of infestation rate was from 6.3% to 14.8% and 9.8% to 18%, respectively. Parasitism of blueberry maggot larvae by the larval-puparial parasite, Diachasmimorpha (Opius) mellea (Gahan) (Hymenoptera: Braconidae), averaged 10.1 ± 2.4% (range 3-13.3%). Copyright © Entomological Society of Canada 1999 Sharp Jennifer L. Subtropical Horticulture Research Station, USDA-ARS, 13601 Old Cutler Road, Miami, Florida, USA 33158 Polavarapu Sridhar Rutgers Blueberry and Cranberry Research Center, Lake Oswego Road, Chatsworth, New Jersey, USA 08019 The Canadian Entomologist Cambridge University Press 131/4(1999-08), 549-555 0008-347X 131:4<549 1999 131 TCE https://doi.org/10.4039/Ent131549-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.4039/Ent131549-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sharp Jennifer L. Subtropical Horticulture Research Station, USDA-ARS, 13601 Old Cutler Road, Miami, Florida, USA 33158 NATIONALLICENCE 700 1- Polavarapu Sridhar Rutgers Blueberry and Cranberry Research Center, Lake Oswego Road, Chatsworth, New Jersey, USA 08019 NATIONALLICENCE 773 0- The Canadian Entomologist Cambridge University Press 131/4(1999-08), 549-555 0008-347X 131:4<549 1999 131 TCE CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge