Article (Scientific journals)
Efficacy of powdered maize cobs against the maize weevil Sitophilus zeamais (Coleoptera: Curculionidae) in stored maize in Senegal
Gueye, Talla Momar; Cissokho, Papa Seyni; Goergen, Georg et al.
2012In International Journal of Tropical Insect Science, p. 1-7
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Keywords :
actellic; dose; losses; maize cobs; mortality; Sitophilus zeamais
Abstract :
[en] Powdered maize cobs were tested as an alternative for pesticide use in stored maize. Five doses (2, 4, 6, 8 and 10 g/250 g seed) of powdered maize cobs applied at particle sizes of 1.4 and 0.4mm diameter were compared with actellic powder against Sitophilus zeamais Motschulsky for 120 days. Mortality and survival data showed that cob powders did not act as fumigant but exerted a potent inhibition of progeny on direct contact with S. zeamais adults. The particle size of powdered cobs had no effect on maize damage and losses. At doses equal to or higher than 6 g powdered maize cobs/250 g grain maize, i.e. 2.4% (w/w), damage to grain was ,5% and weight losses ,1%. The protection offered at the highest dose was comparable to the pesticide control. The use of powdered maize cobs is discussed as a natural alternative to synthetic pesticides for protection of maize against S. zeamais.
Disciplines :
Entomology & pest control
Author, co-author :
Gueye, Talla Momar
Cissokho, Papa Seyni
Goergen, Georg
Ndiaye, Saliou
Seck, Dogo
Gueye, Goulé
Wathelet, Jean-Paul ;  Université de Liège - ULiège > Chimie et bio-industries > Chimie générale et organique
Lognay, Georges ;  Université de Liège - ULiège > Chimie et bio-industries > Analyse, qual. et risques - Labo. de Chimie analytique
Language :
English
Title :
Efficacy of powdered maize cobs against the maize weevil Sitophilus zeamais (Coleoptera: Curculionidae) in stored maize in Senegal
Publication date :
2012
Journal title :
International Journal of Tropical Insect Science
ISSN :
1742-7584
Publisher :
CABI Publishing
Pages :
1-7
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 08 June 2012

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