Storage pests

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sf: we need more images of most of the beetles listet.

Clemson University - USDA Cooperative Extension Slide Series,
Is this a Minor Pest?
Minor Pest Title

Storage pests

Minor Pest Description

A number of beetles feed on dry cassava causing post harvest losses. In Benin Republic the most common are Dinoderus sp., Carpophilus sp., the coffee bean weevil (Araecerus fasciculatus), the lesser grain borer (Rhizopertha dominica), and more recently, the larger grain borer (Prostephanus truncatus). (see below)


Infestation by these insects is heavier in the rainy season than in the dry season, is more prevalent in the humid zone than in the savannah, and is found more in large chips than in smaller ones. Maximum infestation was found after 6 to 8 months in storage, at which time chips would fall into dust when squeezed (Bokanga, IITA, FAO).



Minor Pest What to do.
  • Ensure grains are dried to 12% moisture content prior to storage
  • Use improved storage structures
    Minor Pest Position
    Minor Pest Firstcontent
    Pest Type
    Host Plants