TITLE:
Efficacy of Different Fungicides against Mango Anthracnose in Senegalese Soudanian Agroclimate
AUTHORS:
Papa Madiallacke Diedhiou, Yaya Diallo, Rokhaya Faye, Abdou Aziz Mbengue, Abdou Sene
KEYWORDS:
Anthracnose, Fungicides, Mango, Soudanian Agroclimate, Senegal
JOURNAL NAME:
American Journal of Plant Sciences,
Vol.5 No.15,
July
4,
2014
ABSTRACT: Anthracnose is the one of the most devastating
diseases of mango produced in the southern part of Senegal. The field trials
against post harvest rot due to anthracnose took place in three orchards over
two production seasons, in 2009 and 2010. Three systemic fungicides
(thiophanate methyl, azoxystrobin and myclobutanyl) and one contact fungicide
(mancozeb) were tested for their efficacy. The first treatments in 2009 took
place in the rainy season, while 20% of mangoes on trees exhibited anthracnose
lesions. At ripening stage, 100% of fruits from non treated control mango trees
were affected by anthracnose and got rotten, while between 73.2% and 80% of
mangoes ripened free of disease when treated with thiophanate methyl. With the
treatment with azoxystrobin, between 46.6% and 60% of fruits were not infected.
Treatment with myclobutanyl was less effective. This level of effectiveness was
clearly improved in 2010 by preventive spraying, days ahead of onset of the
rainy season, before the appearance of anthracnose symptoms on fruits. The
level of effectiveness was higher
respectively for thiophanate methyl (between 96% and 100% of fruits not
infected) and azoxystrobin (between 84% and 96% of fruits not infected).