We willingly imagine that the speed of development of events has always remained constant here on earth. This is reflected in the fact that it is generally believed that the rate of natural phenomena is the same today as it has always been in the past and will remain this way more or less in the future. It is, now, a fact that the speed of progression of events is not constant over time. It was ascertained that since around the beginning of the 20th century the rate has accelerated in vari...

Focuses on plant health issues in sub-Saharan Africa which are key to improving yieldsReviews ways of improving the health of key African crops such as cassava, maize and grain legumesBrings together leading experts on plant health in sub-Saharan Africa