author(s)
Danjumma BJ, Majeed Q, Yusuf M and Peni DN

abstract
The present investigation was to study the effects of leaf powders of Citrus aurantifolia and Senna occidentalis on development of Sitophilus zeamais (Motsch) in Entomology laboratory Usmanu Danfodiyo University Sokoto. The mortality of S. zeamais in maize treated with Citrus aurantifolia were observed to be high, actellic dust (0.5g/100g) and were significantly (P<0.05) higher from the untreated (control). Effects of plant powder on the emergence of adult S. zeamais was significantly (p<0.05) higher. The highest emergence (25.07±0.67) was observed from the grains treated with 2.0g of Senna occidentalis and least (4.00±0.58) was 6.0g of Citrus aurantifolia. This result indicated that the Citrus aurantifolia and Senna occidentalis can be use in protecting the maize from maize weevil infestation during storage.