Reference : Efficacy of powdered maize cobs against the maize weevil Sitophilus zeamais (Coleopte...
Scientific journals : Article
Life sciences : Entomology & pest control
Efficacy of powdered maize cobs against the maize weevil Sitophilus zeamais (Coleoptera: Curculionidae) in stored maize in Senegal
Gueye, Talla Momar mailto [ > > ]
Cissokho, Papa Seyni [ > > ]
Goergen, Georg [ > > ]
Ndiaye, Saliou [ > > ]
Seck, Dogo [ > > ]
Gueye, Goulé [ > > ]
Wathelet, Jean-Paul mailto [Université de Liège - ULiège > Chimie et bio-industries > Chimie générale et organique >]
Lognay, Georges mailto [Université de Liège - ULiège > Chimie et bio-industries > Analyse, qual. et risques - Labo. de Chimie analytique >]
International Journal of Tropical Insect Science
CABI Publishing
Yes (verified by ORBi)
[en] actellic ; dose ; losses ; maize cobs ; mortality ; Sitophilus zeamais
[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.
Researchers ; Professionals

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