摘要
Fruit flies are serious pests of Mango in Sudan; they cause substantial damage to Mango production, both qualitatively and quantitatively. This study is an effort to establish information about the pest and, to test the susceptibility of some Mango cultivars （Baladi, Kitchener, Shendi, Alphons, Abu Samaka and Bit abusamaka） to the pest infestation. A survey was carded out at Shendi area, River Nile State, during the period of May 2007 to July 2008, using a home made trap resemble lvnfield traps with attractants （Methyl eugenol, Trimedlure, cue lure and Nu lure） to identify the fruit flies species found in the area and to study the seasonal abundance of the pest species and to determine the infestation percentage of different Mango cultivars. Results indicated that the fruit fly Bactrocera invadens is present all year-round in the study area, with population peak July to September. The study showed that Guava （ Psedium guajava ） represents the best alternative host for the pest. Abu samaka and Bit Abusa amaka mango cultivars were the most susceptible, with 100% infestation, followed by Shendi 70%, Kitchener 54%, Alphons and Baladi （30%, 28%, respectively） were the least susceptible. Also results revealed that females of both species Ceratitis cosyra and Bactrocera invadens out numbered males 4-5 times.
