PROBLEMS OF ARMILLARIA ROOT AND BUTT ROT IN TROPICAL AFRICA: THE CASE OF NIGERIAN FORESTS.

Abstract

Armillaria root and butt infections of plants have been the cause of substantial economic losses in a number
of cash crops and other plants of horticultural importance throughout the African continent. As in most tropicalcountries, research into problems resultingfromArmillaria infectionshas gone through an evolutionary
process. This paper examines the various developments that have taken place and recent contributions aimed at solving problems resulting from themenace of Armillaria on economic crops in tropical Africa. The result
of a field study carried out in Nigeria forests to ascertain the current situation of Armillaria is also presented and discussed.