Fruit fly infestation in mango: A threat to the Horticultural sector in Uganda
Fruit flies (Diptera: Tephtritidae) are one of the most important insect pests to fruits worldwide. In Uganda, fruit flies have inflicted considerable yield losses especially in mangos (Mangifera indica L.), However, there has been no recent assessment of the associated economic damage impact despite the outcries from the farming communities. The objective of this study was to assess fruit fly prevalence and infestation in mango and other hosts, to guide the development and improvement of fruit fly control measures in the mango industry in Uganda. A survey was conducted in the major mango producing areas of the country. Four fruit fly (Diptera: Tephritidae) species were recovered from various field-collected fruits; namely Bactrocera invadens, Ceratitis cosyra, Ceratitis rosa and Ceratitis capitata. Bactrocera invadens was the most prevalent species (98%), while C. capitata was the populous. A total of 73% of the mango fruit samples collected from seven agro-ecological zones was found infested with fruit fly larvae. Fruit samples from West Nile had the highest infestation (83%), followed by Northern Moist, Lake Victoria Crescent, and Western Medium High Farmland, with 78, 75 and 73% fruit fly infestation, respectively. It was common to experience 100% fruit losses across the agro-ecological zones in the absence of control measures. The situation was increasingly severest with exotic commercial varieties. Besides mangoes, over 15 other cultivated and wild fruits acted as alternative hosts to the fruit flies.
Key words: Bactrocera invadens, Diptera, Mangifera indica
Submission of a manuscript implies; that the work described has not been published before (except in the form of an abstract or as part of a published lecture, or thesis) that it is not under consideration for publication elsewhere; that if and when the manuscript is accepted for publication, the authors agree to automatic transfer of the copyright to the publisher.
Copyrights for the papers published in UJAS are retained by the authors, with first publication rights granted to the journal. The journal is not responsible for subsequent uses of the work. It is the responsibility of the author to bring an infringement action if so desired by the author.
The journal has an online Open Access policy licensed according to Creative Commons Share-Alike Non-Commercial.