Abstract
These studies were conducted to investigate the effect of temperature on the developmentof Delia platura (Meigen) under a laboratory condition at five different temperatures. The developmentalperiods of D. platurcr from egg to adult emcrgence at the temperatures of 11, 15, 19, 23, and 27$^{\circ}$C were67.8k 14.5, 43.7t-9.4, 31.2-t-7.0, 22.4k4.9, and 18.3k4.1 days, respectively. Based on these results,threshold temperature of development and effective cumulative degree-day (DD) for overall developmentwas 0.6"C and 579.8 DD, respectively. Generation of time D. pluturci averaged 30.8 days, and meannumber of eggs produced per female was 246.5 k 16.9 at 23$^{\circ}$C. Hatching rate and emergence rate curvesin relation to the temperature was dome shaped with the peak of 90.0 and 85.2% at 23"C, it wassuggesting that hatching and emergence were inhibited by high temperature above that temperature.Pupation rate of the insect reared on garlic and on onion were higher than those reared on other diets.Oviposition of D. platum usually began 7-9 days after emergence at 23$^{\circ}$C. Females laid about 3-4 eggsin a day. Oviposition of the females peaked at the age of 12- 18 days after emergence. of 12- 18 days after emergence.
씨고자리파리의 발육에 미치는 온도의 영향을 조사한 결과는 다음과 같다. 알에서 우화까지의 발육기간은 11, 5, 19, 23, $27^{\circ}C$에서 각각 $67.8\pm$14.5, $43.7\pm$9.4, $31.2\pm$7.0, 22.4$\pm$4.9, $18.3\pm$4.1일로 온도가 증가할수록 발육기간은 단축되었고 발육영점은 $^0.6{\circ}C$, 유효적산온도는 579.8일도였다. 23$^{\circ}C$에서 한 세대기간은 30.8일이었고 산란수는 246.5개였다. 부화율 및 우화율은 23$^{\circ}C$에서 90.0 및 85.2%로 정점에 도달한 후 다시 감소하여 $23^{\circ}C$를 경계로 이보다 높은 온도에서 부화 및 우화가 저해되었다. 실험실에서 유충의 먹이로 양파와 마늘이 효율적인 것으로 조사되었다. 씨고자리파리는 $23^{\circ}C$에서 우화 후 7~9일경부터 산란하기 시작하여 우화 후 12~18일 사이에 산란수가 가장 많았으며, 이때에 최고 산란수는 2일 동안 17~23개였다.
