https://dzarc.com/entomology <p><strong>Journal of Applied Entomologist</strong> is open access, refereed, or peer-reviewed research journal, this journal invites you to publish research articles that have a significant impact on science and academic group. This entomology journal's main focus is on critical and creative research and provides a completely open-access research journal platform for scholars and researchers to share their research and findings among practitioners around the globe.</p> Dzarc Publications en-US Journal of Applied Entomologist 2583-1917 https://dzarc.com/entomology/article/view/634 <p>Aquatic insects play a significant role in freshwater systems as they provide information regarding the ecological conditions and changes that take place by acting as bio monitors, hence conditions such as the presence of mayflies, dragonflies, and stoneflies would serve as an indicator to assess the quality of water. The changes to water bodies such as changes in pH, temperature and oxygen levels lead to shifts in aquatic communities and changes to environmental conditions are closely related which can affect the community makeup. An attempt has been made to highlight the significance of biomonitoring score and diversity index to study freshwater insect.</p> Joydeep Das Joydev Maity Copyright (c) 2025 https://creativecommons.org/licenses/by/4.0 2025-04-04 2025-04-04 5 2 01 10 https://dzarc.com/entomology/article/view/637 <p>Investigations were carried out to assess the susceptibility of local varieties of some selected local varieties of cereal crops namely maize, rice and sorghum to the maize weevil,<em> Sitophilus zeamais </em>Motsch. Five pairs of unsexed adults of the weevils were introduced into rearing bottles containing 100 g of each type of clean and disinfested grains in Postgraduate Laboratory of the Department of Biology of Umaru Musa Yar’adua University, Katsina (UMYUK) at 27±2^oC and 65±5% (RH). The experiment was arranged in a completely randomized design (CRD) and replicated five times. Adult emergence, mean developmental periods, grain weight loss, index of susceptibility of the weevils and concentration of body protein of <em>S. zeamais</em> were investigated. Highest number (194.60 ± 1.21) of emerged adults of the weevils was recorded in sorghum, while the least (88.80 ± 1.75) was in rice. The longest developmental period (27.51 ± 1.21 days) of the weevil was in sorghum, while the shortest (25.63 ± 1.36 days) in maize. Grain weight loss due to infestation of <em>S. zeamais </em>ranged from 5.42 ± 2.32% in rice to 7.48 ± 3.12% in sorghum. The index of susceptibility showed that both maize and sorghum were susceptible, while rice was moderately resistant to <em>S zeamais.</em> Farmers are advised not to store sorghum and maize for a relatively long period of time over rice variety in a mix storage system.</p> Mohammed Suleiman Muwaffaq Aminu Sadis Ibrahim Sani Samaila Abubakar Copyright (c) 2025 https://creativecommons.org/licenses/by/4.0 2025-04-08 2025-04-08 5 2 11 15