EFFICACY OF NIGERIA-DERIVED DIATOMACEOUS EARTH, BOTANICALS AND RIVERBED SAND AGAINST Sitophilus oryzae AND Rhyzopertha dominica ON WHEAT

Powdered seeds of Dennettia tripetala (Baker f.) and Piper guineense Schumach, Bularafa diatomaceous earth (DE), Riverbed Sand, and combinations of the two botanicals with Bularafa DE and Riverbed Sand were evaluated as protectants of wheat seed against Sitophilus oryzae (L.) and Rhyzopertha dominic...

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Bibliographic Details
Published in:African crop science journal 2015-09, Vol.23 (3)
Main Authors: OTITODUN, G.O, OPIT, G.P, NWAUBANI, S.I, OKONKWO, E.U, GAUTAM, S.G
Format: Article
Language:English
Subjects:
Bularafa DE
Dennettia tripetala
Piper guineense
stocké-produit antiparasitaire
stored-product pest
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Summary:Powdered seeds of Dennettia tripetala (Baker f.) and Piper guineense Schumach, Bularafa diatomaceous earth (DE), Riverbed Sand, and combinations of the two botanicals with Bularafa DE and Riverbed Sand were evaluated as protectants of wheat seed against Sitophilus oryzae (L.) and Rhyzopertha dominica (F.). Insecto®, a commercialised DE, was tested as a standard check. The rates tested were 60 g kg-1 of wheat (for botanicals) and 1 g kg-1 of wheat (for other dusts). The botanicals singly and in combination with Bularafa DE and sand induced 100% mortality and total progeny suppression of both species in 7 days. Insecto and Bularafa DE treatments each induced >69% mortality and >78% progeny suppression against R. dominica, respectively. Sand was ineffective, inducing
ISSN:1021-9730