An Insight into Sweet Potato Weevils Management: A Review

Abstract

Sweet potato is an important food crop that is grown widely in tropical and subtropical regions. Sweet potato weevil is the most disastrous pest affecting sweet potato plantations, causing millions of dollars losses annually. An effective integrated pest management (IPM) method will help to prevent economic losses, and it is crucial to understand the factors that contribute to weevil infestation and strategies that are available to overcome them. This review summarizes the (1) mechanisms of action of weevil on sweet potato and (2) contributing factors in weevil infestation, followed by (3) discussion on current IPM practices used in the different regions, including intercropping, entomopathogenic fungi and bacteria, sex pheromones, and pesticides. Lastly, it also focuses on (4) applications of advanced biotechnology and genomics strategies towards reducing weevil's infestation in sweet potato plantation.

Biophysic Factors Related to a Local Famous Sweet Potato Variety (<i>Ipomoea batatas</i> L.) Production: A Study Based on Local Knowledge and Field Data in Indonesia

“…Other factors that farmers deem influential are the sweet potato variety and pests attack. The influence of sweet potato variety on sugar content is noted by Onggo (2006), Uwah et al (2013), Liu et al (2013), Lai et al (2013) and Kwarteng et al (2014), while the effect of sweet potato weevils on production is studied by Smith (2006), Swamy and Omwenga (2014) and Hue and Low (2015).…”

“…Availability of water in the soil is important to produce soluble solid to be absorbed by the plant (Prabawardani and Suparno, 2015). The effect of water scarcity during dry season not only decreases growth and yield but also increases the possibility of pest, particularly the sweet potato weevil (Cylas, Sp) as stated by Smith (2006), Swamy and Omwenga (2014) and Hue and Low (2015). At Cimasuk cultivation area, around 15% of yield harvest is unmarketable due to sweet potato weevil.…”

“…Environmental variation in single characteristics plays a role in the sweet potatoes production (Ramirez 1995, O'Sullivan et al, 1997Belehu and Hammes, 2004;Gomes et al, 2005;Caliskan et al, 2007;Bareja, 2011;Neduncheshiyan et al, 2012;Laxminarayana and John, 2014;Prabawardani and Suparno, 2015). Other factors are variety (Onggo, 2006;Liu et al, 2013;Lai et al, 2013;Kwarteng et al, 2014) and pest, particularly sweet potato weevil (Smith, 2006;Swamy and Omwenga, 2014;Hue and Low, 2015).…”

Perbandingan Metode Aplikasi Jamur Entomopatogen Beauveria Bassiana Untuk Pengendalian Cylas Formicarius (Coleoptera: Curculionidae)

“…Hal ini disebabkan senyawa insektisida kimia yang diaplikasikan ke permukaan tanaman tidak mampu menjangkau larva yang berada di dalam umbi. Berbagai upaya untuk menanggulangi C. formicarius terus dikembangkan (Tarafdar & Sarkar 2006;Foglie, 2007;Korada et al, 2010;Reddy et al, 2014;Hue & Low, 2015), salah satunya adalah upaya pengendalian hayati menggunakan jamur entomopatogen (Gindin et al, 2006;Ondiaka et al, 2008;Shams et al, 2011;Khosravi et al, 2015).…”

Efficacy of Biopesticide Be-Bas against Sweet Potato Weevils (Cylas formicarius Fabricius) in Tidal Land

“…Because of the chemical compound cannot reach the larvae live inside the tuber under the soil. Various efforts yet to develop to manage C. formicarius (Reddy et al, 2012;Taye & Tadesse, 2014;Hue & Low, 2015), one of which is biological control method using entomopathogenic fungi (Shams et al, 2011;Khosravi et al, 2015).…”