Incidence, spatial distribution and damage severity by the sweet potato weevils in sweet potato producing areas of Central Tanzania
Keywords:This study evaluates the pest status and distribution of weevils in Gairo and Ikungi districts of central Tanzania. It reports that the average field incidence of the pest was higher in Gairo (68%) than that of Ikungi (5%).
Sweet potato (Ipomoea batatas (L.) Lam) is an important staple food and commercial crop in central
Tanzania and most of the tropical countries. The on-farm crop productivity in the country is low estimated at 9.5 t
ha-1 . Of this, the proportion of marketable yield is even lower due to substantial damages inflicted by the sweet
potato weevils, the Cylas spp. A study was conducted to establish the pest status and distribution of weevils in
Gairo and Ikungi districts of central Tanzania.
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