Dorothy Obuobi

Assessment of Platostoma africanum and Hyptis spicigera as Botanicals for Controlling Cowpea and Maize Weevils During Storage

Louis Agyemang, Millicent Captain-Esoah, Elijah Dakorah Angyiereyiri, Martin Ntiamoah Donkor, Dorothy Obuobi, Godwin Deku, Theophilus Atio Abalori, Oliver Awo & Mawuli Kwamla Azameti · Asian Plant Research Journal · 2026

In sub-Saharan Africa, maize (Zea mays L.) and cowpea (Vigna unguiculata (L.) Walp) are essential for food security, but infestation by storage weevils — Sitophilus zeamais Motschulsky and Callosobruchus maculatus Fabricius — can cause postharvest losses greater than 30%. This st...

Open access Research Article 10.9734/aprj/2026/v14i5400

Evaluation of the Potency of Azadirachta indica (Neem) Leaf and Fruit Powders as Natural Alternatives to Synthetic Insecticides in Controlling Callosobruchus maculatus (Fabricius)

Millicent Captain-Esoah, Abubakari Yakubu, Sumaila Zurkanani, Kwadwo K. Frempong, Martin N. Donkor, Emmanuella Captain Esoah, Abdul Malik Hussein, Elijah D. Angyiereyiri, Raheem Waliu, Dorothy Obuobi & Mawuli K. Azameti · International Journal of Plant & Soil Science · 2026

Background: The cowpea weevil (Callosobruchus maculatus) poses a serious threat as a significant post-harvest pest of stored cowpeas, causing quantitative and qualitative losses in sub-Saharan African countries. Control of these insects has relied on synthetic insecticides, which...

Open access Research Article 10.9734/ijpss/2026/v38i56068