【摘要】 为探明橘小实蝇Bactrocera dorsalis对我国北方桃、苹果、梨和石榴4种主要水果的产卵选择性及适应性，以香蕉为参照，测定橘小实蝇对这4种北方主要水果的产卵选择性，以及这4种水果对橘小实蝇生长发育的影响。结果表明：橘小实蝇在不同水果上的产卵选择性存在差异，水果块上幼虫数量明显多于完整水果上幼虫数量；橘小实蝇在完整桃和完整苹果上的幼虫数量较多，分别为91.33头和89.17头，显著多于其他3种完整水果上的幼虫数量，在完整石榴上的幼虫数量最少；香蕉块和苹果块上幼虫数量较多，分别为188.49头和161.01头，梨块上幼虫数量最少。橘小实蝇在5种水果上均能完成幼虫的生长发育，其中取食桃的幼虫生长发育情况最好，幼虫期最短，蛹重和羽化率最高，分别10.41 d、11.70 mg和92.58%，取食苹果的幼虫生长发育情况较差，幼虫期最长，蛹重和羽化率最低，分别为16.74 d、8.03 mg和69.36%。表明橘小实蝇在苹果、梨、桃和石榴这4种北方水果上均可以产卵和完成世代发育，其中对桃子的适应性最好，对苹果的适应性最差，水果有伤口更易吸引橘小实蝇产卵，因此在果园生产中应加强橘小实蝇监测，减少果实损伤。更多还原

【Abstract】 To elucidate the oviposition preference and host adaptability of oriental fruit fly Bactrocera dorsalis to four major fruit species in northern China(peach, apple, pear, and pomegranate), banana was used as a control to assess oviposition selectivity and its influence on larval development. The results demonstrated significant differences in oviposition behavior across fruits. Larval numbers were consistently higher on fruit slices than on intact fruits. Among whole fruits, peach and apple attracted the highest number of larvae(91.33 and 89.17, respectively), while pomegranate had the fewest. For fruit slices,banana and apple supported the most larvae(188.49 and 161.01), while pear supported the fewest. Bactrocera dorsalis completed larval development on all tested fruits. Larvae feeding on peach exhibited the best development. with the shortest larval period(10.41 d), highest pupal weight(11.70 mg), and highest eclosion rate(92.58%). In contrast, larvae feeding on apple showed the poorest performance,with the longest larval development duration(16.74 d), lowest pupal weight(8.03 mg), and lowest eclosion rate(69.36%). Collectively, these findings suggest that B. dorsalis can oviposit and develop normally on all four fruits, with peach being the most suitable and apple the least. Additionally, wounded fruits were more attractive for oviposition, highlighting the need for enhanced monitoring and reduced fruit damage in orchard management to mitigate infestation risk.更多还原