Susceptibility of the saw-toothed grain beetle, Oryzaephilus surinamensis (L.), to gamma radiation

Tuncbilek A. Ş.

JOURNAL OF STORED PRODUCTS RESEARCH, vol.33, no.4, pp.331-334, 1997 (SCI-Expanded) identifier identifier


Gamma radiation was applied over the range of 25-125 Gy at five dose levels against 7-10-day-old adults of Oryzaephilus surinamensis, and the sterility and mortality effects were investigated, All experiments were carried out in incubators maintained at 27 +/- 0.5 degrees C and 70 +/- 5% relative humidity. The results obtained revealed that the percentage of adults surviving was dependent on the dose level, There were no beetles left alive and no progeny produced when adults were exposed to 125 Gy, LD50 and LD99.9 values were determined to be 55.6 and 216.4 Gy respectively; the sterilizing dose levels (SD50 and SD99.9) were estimated to be 26.2 and 117.1 Gy respectively. (C) 1997 Elsevier Science Ltd. All rights reserved.