Two farmers fit see marks for leaf of African pear tree but di problems fit different. One research team for University of Dschang don map diseases of di fruit tree for three growing areas for Cameroon. Dia study wey dem publish on 3 November show say di disease wey cause di worst damage for one area no necessarily be di one wey cause di worst damage for another.
Di tree na Dacryodes edulis. People still dey call am African plum or safou. Dem dey grow am for fruit wey people dey chop and sell. Di team cover 14 villages for di western highlands, 18 for forest area wey get two rainy periods and six for forest area wey get one rainy period. For dia measurements dem choose one orchard by chance for each village.
Researchers check signs for leaf and fruit and note conditions around di trees. Dem join wetin dem see for farm with lab work to separate organisms wey dey cause disease and test whether dem fit cause am. Dem still record where di trees dey. Dat one help dem connect di different patterns of damage to places for map.
Cercospora leaf spot cause di most severe damage for di highlands and di forest area wey get two rainy periods. Anthracnose cause di most severe damage for di forest area wey get one rainy period. Di team still report problems like branch wey dey die from di tip, red rust and rot near where fruit join im stalk.
Map of trees wey get disease and score for how bad one tree suffer dey answer different questions. To find how common disease be for di farms, di team count di share of trees wey get am among di ones dem examine. To check severity dem inspect damage around di leafy top of di tree. High score no be percentage of fruit crop wey di whole country lose.
Wetin e mean for you. Nigerian farmer wey know di fruit fit use dis difference explain problem: how many trees get damage, where e dey and how bad e be? Di Cameroon survey fit help person compare. E no diagnose disease for farm for Nigeria or show which treatment go work there.