寄主與齡期對薹潛蠅繭蜂（Opius caricivorae）（膜翅目：小繭蜂科）發育與產卵之影響

Effect of Host and Instar Preference on the Development and Oviposition of the Endoparasitoid Opius caricivorae (Hymenoptera: Braconidae)

錢景秦(Ching-Chin Chien) ； 張淑貞(Shu-Chen Chang)

《台灣農業研究》 61卷3期 (2012/09) Pp. 165-171

https://doi.org/10.6156/JTAR/2012.06103.01

摘要

薹潛蠅繭蜂（Opius caricivorae Fischer）為南美斑潛蠅 [Liriomyza huidobrensis（Blanchard）]、蔬菜斑潛蠅（Liriomyza sativae Blanchard）及非洲菊斑潛蠅 [Liriomyza trifolii（Burgess）] 之幼蟲至蛹內寄生蜂。為建立寄生蜂繁殖方法及對寄主防治潛能之評估，本試驗於室內25℃下進行上述三種寄主與齡期對薹潛蠅繭蜂發育、子蜂數及子代雌性比之影響。結果得知寄主種類對該蜂之發育期與存活率均無顯著影響。在寄主齡期無選擇性或有選擇性試驗時，雌蜂雖均可在寄主三種不同齡期上產卵，但均顯著偏好產卵於寄主第二與三齡幼蟲，且此二處理間無顯著差異。成蜂體型大小雖不受寄主齡期影響，但子蜂數與子代雌性比卻受寄主齡期影響。寄生第一齡寄主者其子蜂數顯著較寄生第二、三齡寄主者減少24.4-32.8%，子代雌性比顯著較寄生第二、三齡寄主者減少19.6-35.2%。顯示薹潛蠅繭蜂較適宜在斑潛蠅第二與三齡幼蟲上繁殖。

關鍵字

薹潛蠅繭蜂 ； 南美斑潛蠅 ； 蔬菜斑潛蠅 ； 非洲菊斑潛蠅 ； 齡期偏好

並列摘要

Opius caricivorae Fischer is a larval-pupal endoparasitoid of the three leafminer species, Liriomyza huidobrensis (Blanchard), Liriomyza sativae Blanchard and Liriomyza trifolii (Burgess), in Taiwan. This study was conducted to determine biological control potential and mass-rearing method of this wasp by investigating effects of host species and different instars of hosts (L. huidobrensis, L. sativae, and L. trifolii) on the development, number of progeny and female proportion of O. caricivorae at 25℃. Results showed that there were no significant (P ＜ 0.05) effect among the three species of leafminer on survival and development of the wasp. Although female wasps could oviposite on larvae of all the three different instars of the three species of leafminers, the female wasps preferred to oviposite on the second and third instars in both experiments of no-choice and free-choice of instars. Also, effect of instars of leafminer was significant (P ＜ 0.05) on number of progeny and female proportion of wasps, but was no significant (P ＜ 0.05) on body size of wasps. The number of progeny from the parasitized, first instar leafminer decreased by 24.4-32.8% compared to the second and third instar leafminer. The proportion of female wasps from the parasitized, first instar leafminer decreased by 19.6-35.2% compared to the second and third instar leafminer. This study indicates that the second and third instar larvae of leafminer are suitably provided for rearing of O. caricivorae.

並列關鍵字

Opius caricivorae ； Liriomyza huidobrensis ； Liriomyza sativae ； Liriomyza trifolii ； Instars preference