Market Survey of Insect Pest Infestation of Dried Root and Tuber Products across Nigeria-Benin Land Border
A.A. Obadofin, A.O. Joda, J.A. Oluitan

Abstract
A detection survey was conducted to assess infestation of dried cassava chips, yam chips and yam flour transported across Nigeria-Benin land border. Twelve stored products insect pest species and one mite were found in the samples collected across the two countries. Insect pest population found on the consignments from Benin Republic was significantly (α ≤ 0.05) higher than those found on consignments from Nigeria. Trogoderma granarium (Everts), Sitophilus granaries (L), Sitophilus zeamais (Motschulsky), Cryptolestes ferruginensis (Stephens), Ploidia interpunctella (Hubner), Lasioderma serricome (Fabricius) and Acarus siro were found to be insect pests and mite of quarantine significance to dried cassava chips in Nigeria. Relevance of enforcement of Standard quarantine laws amidst trade liberalization are discussed.

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