Cassava Brown Streak Disease threatens the “Rambo root” further north in Africa

by MaryLucy Oronje and Willis Ndeda Ochilo Cassava Brown Streak Disease (CBSD) is threatening gains made in the intensification of cassava production in Africa. Since my colleague, Abigail Rumsey, reported on the resurgence of this disease in East Africa, and spread to Central and Western Africa, there are now reports of it spreading to northern…
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Where did black sigatoka come from?

Black sigatoka, or black leaf streak disease, a disease of bananas and plantains caused by the fungus Mycosphaerella fijiensis, has caused widespread losses to banana crops over the past 50 years. A new study of the phylogeography of black sigatoka on banana leaves from around the world has helped to elucidate the recent origins of…
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