Comparative Toxicity Of Zingiber officinale and Deltamethrin On Prostephanus Truncatus (HORN)

Abstract

In Africa, Prostephanus truncatus is a destructive pest of economic importance which has deteriorative effects on dry cassava chips in storage. The present study investigates the effects of Zingiber officinale on P. truncatus on dried cassava chips . Deltamethrin was used as the reference insecticide. The plant extract was used at different concentrations (500 μg/ml ul/ml, 250ul/ml, 125ul/ml, 62.5ul/ml, 0ul/ml(control) and 0.05ul/ml(reference)) 100g of cassava chips were put in a plastic plate and treated differently with Z. officinale and Deltamethrin, the control contains only acetone, each treatment was replicated 3times .10 unsexed P. truncatus adults were put into each plate and the plates were covered with muslin cloth held with a rubber band. Results were taken after 24hrs, 48hrs, 72hrs and 7days after treatment. All the data generated was subjected to one-way analysis of variance (ANOVA) No reference in abstract. The result of the experiment showed that Z. officinale recorded one hundred percent mortality at higher concentrations of 250ul/ml and 500ul/ml,and for which time duration? its effects were similar to the reference insecticide