Unlike the stem borers, which chew and bore through stems and new maize cobs, these whiteflies feed directly on plants’ sap. They also carry cassava … Because of insects’ impact on food security, billions of dollars have gone into research aimed …

Read full article here..

  • http://theconversation.com/africas-most-notorious-insects-the-bugs-that-hit-agriculture-the-hardest-83107