Integrated Pest Management of the Yam Chip Beetle Dinoderus porcellus Lesne (Coleoptera: Bostrichidae): Current Status and Future Prospects

Abstract

In West Africa, Dinoderus porcellus Lesne (Coleoptera: Bostrichidae) is a pest that attacks and spoils stored yam chips. Despite this fact, very little attention has been given to this pest, which could destroy up to 65% of stocks. In order to prevent any damages, farmers are widely using chemical substances for fighting against this pest despite their negative impacts on human health and environment. This chapter aims at proposing a solution approach and discussing the development of an integrated pest management strategy. The solution approach includes storage bags, varietal resistance, botanicals, and biological control. Further research should be done on the use of hermetic bags, essential oils, entomopathogens, insect growth regulators, pheromones, and their combined effects in the D. porcellus control.

Insecticidal Effect Of Adansonia digitata Stem Bark And Leaf Powders On Dinoderus porcellus

“…However, the yam chips are heavily infested by insect pests leading to great losses. The insect D. porcellus is a major pest of stored farm produce of many roots and tubers such as yam in West Africa (Loko et al, 2019). D. porcellus destroys yam chips by making holes , thereby transforming the internal parts of the yam into powder, which adversely affects their quality and market value.…”

Anti-reproductive efficacy of Adansonia digitata Powder against Dinoderus porcellus Associated with Yam Chips Spoilage in Jos Metropolis, Nigeria

“…The plant parts provide food, clothing and numerous medicinal benefits such as anti-inflammatory, antioxidant, analgesic, anti-dysentery anti-diarrhea activity in many developing countries like Nigeria (Zagga et al, 2018). Yam and yam products constitute more than 80% of the total carbohydrate consumption in Nigeria (Loko et al, 2019). Among the yam species, D. rotundata (white yam), D. alata (water yam) and D. cayenesis, (yellow or guinea yam) are the most produced and consumed in Nigeria (Amusa et al, 2003).…”

“…However, yam chips infestation by Dinoderus porcellus and other pests causes huge damages by transforming the chips in powder (Babarinde et al, 2013). Studies by Adesuyi (1979); Osuji (1980); Babarinde et al (2013) and Loko et al (2019) implicated D. porcellus as the major dominant and dangerous postharvest pest of yam chips. Based on this, the study is focused on the efficacy of Adansonia digitata against Dinodurus porcellus affecting yam in Jos metropolis.…”