July 2021

Repellent and insecticidal effects of essential oils of Petroselinum crispum (Mill.) Fuss and Pimenta racemosa var. racemosa (Mill.) J.W. Moore leaves on Dinoderus porcellus Lesne (Coleoptera: Bostrichidae)

Essential oils from leaves of Petroselinum crispum (Mill.) Nym. ex AW HillFuss (Apiaceae) and Pimenta racemosa var. racemosa  (P. Mill.er) J.W. Moore (Myrtaceae) were evaluated for their repellent properties, insecticidal and fumigant activities against Dinoderus porcellus Lesne (Coleoptera: Bostrichidae). The essential oils of these plants were obtained by Clevenger-type hydro distillation method...

Author(s): Loko Yêyinou Laura Estelle, Bogninou Gbêdossou Sophie Reine, Toffa Joelle, Kassa Parfait, Douro Kpindou Ouorou Kobi and Chougourou C. Daniel

July 2021

Performance evaluation of the DehytrayTM solar drying device using plantain, pepper and okra under the tropical conditions of Oyo State, Nigeria

The quest for improved performance of access to solar dryers has led to the development of several designs of solar dryers. This study evaluated the performance of the DehytrayTM, a relatively new solar dryer made up of food grade plastic, in comparison with sun drying using plantain, okra and pepper as test crops in five replicated trials. Freshly harvested crops were divided into two batches, weighing 1.3 kg each. The...

Author(s): Omobowale Mobolaji, Akhere Eromosele Olenloa and Ngozi Emade Okoro

September 2021

Hermetic storage of maize grain in repurposed food oil containers to control maize weevils

Insect-related grain loss is a significant problem in Uganda and other countries in sub Saharan Africa. The maize weevil (Sitophilus zeamais Motschulsky) is one of the major insect pests that infests stored maize grain (Zea mays Linneaus). This study demonstrates the feasibility of hermetic or “air-tight” storage for protecting maize from maize weevil damage using low-cost repurposed food oil containers....

Author(s): Thomas J. Brumm, Carl J. Bern and David F. Webber

October 2021

Compared efficiency of a commercial Neem oil (TopBio) and synthetic insecticide (Antouka Super®) in the management of Dinoderus porcellus Lesne (Coleoptera: Bostrichidae) infesting yam chips

Dinoderus porcellus Lesne is the main pest of stored yam chips in West Africa. Despite their negative impact on the environment and human health, synthetic chemical pesticides are the main control method used by farmers for yam chips protection. This study aims to evaluate the biological effects of different doses (2.5 and 5%) of a commercial Neem oil (TopBio) and the chemical insecticide, Antouka Super® (Permethrin...

Author(s): Joelle Toffa, Yeyinou Laura Estelle Loko, Elie Ayitondji Dannon, Karim Zanzana, Josky Adikpeto, Noel Bada and Appolinaire Adandonon