【摘要】 为了探索古巴蝇防治甘蔗螟虫在广西蔗区应用的可行性,广西甘蔗研究所于2004～2005年从古巴引进古巴蝇并进行了相应研究。结果表明:古巴蝇能寄生二点螟、条螟、黄螟和玉米螟等甘蔗害虫,化蛹率为70%～90%,羽化率在80%～90%。不能寄生桑蚕。能用非自然寄主大蜡螟人工繁殖古巴蝇,平均化蛹率为100.46%,平均羽化率为86.32%。古巴蝇喜欢温暖潮湿,在26～28℃、相对湿度75%～85%时,生长发育最佳,生物学周期为25～40d。接种(寄生)至化蛹为8～10d,蛹期为6～10d,雄蝇寿命3～6d,雌蝇寿命20～30d。0℃以下的低温和42℃以上的高温对古巴蝇的生长发育、化蛹和羽化不利,古巴蝇蛹在8～10℃保存5～10d羽化率不受影响,但蛹期相应延长。本研究对指导广西蔗区应用古巴蝇防治甘蔗螟虫,促进广西蔗糖业可持续发展有着重要意义。更多还原

【Abstract】 A strain of Lixophaga diatraeae Townsend imported from Cuba was assessed for its potential as a biological agent to control sugarcane borers by Guangxi Sugarcane Research Institute from 2004 to 2005. The results showed that: Cuban fly can parasitize some pests, such as Chilo infuscatellus Snellen, Proceras venosatum Walker, Tetramoera schistaceana Snellen and Ostrinia furnacalis Guenee etc., and the pupae rate was about 70% - 90%, the emergence rate was about 80% - 90%. Galleria mellonella can be used as an artificial host to breed Cuban fly. The average rate of pupae was 100.46%, and the average rate of adult emergencies 86.32%. Cuban fly likes warm and humidity habitation. The optimum temperature for Cuba fly development was from 26 to 28℃ and relative humidity was 75% - 85% . The duration of the biological cycle varies between 25 and 40 days. Inoculation (Parasitic) to Pupating were 8-10 days, pupae period was 6-10 days, the longevity of male adult was 3-6 days,the female was 20-30 days. It had an adverse effect for Cuban fly growing, pupating and emerging when the temperature was below 0℃ and above 42℃. After being stored between 8 and 10℃ from 5 to 10 days, the rate of adult emergence was not influenced, but the pupae period was longer. The study guides the application of Cuban fly for a biological control of sugarcane borers in Guangxi sugarcane production; it plays an important role to advance the sustainable development of cane sugar trade in Guangxi.更多还原