Journal of Applied Entomologist <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 Impact of ecological conditions on population dynamic of Phenacoccus solenopsis Tinsley and associated predators in sweet potato fields ELBeheira Governorate, Egypt <p>The mealy bug, <em>Phenacoccus solenopsis</em> and the two spotted spider mite, <em>Tetranychus urticae</em> are a highly polyphagous sap sucking pests, without a hibernation period, as both are active all the year round. They are destructive pests of important vegetables and field crops. The present study was carried out at Rasheed region, Beheira Governorate during 2021 and 2022 seasons, to monitor the population fluctuations of mealybug and its predators; <em>Coccinella undecimpunctata</em> L., <em>Chrysoperla carnea </em>Steph<em>, Scymnus </em>spp<em>.</em> and<em> Hippodamia tredecimpunctata</em> in the first season, the infestation of <em>P. solenopsis</em> started on sweet potato plants at low numbers, the population increased gradually to reach its highest peak during 30<sup>th</sup> July (115.00 individual). This peak was followed by a relatively high population of the three predators, <em>C. undecimpunctata</em> (4.00 individual), <em>Ch. carnea </em>(8.00 individ.)<em>, Scymnus sp.</em> (3.00 individ.) and <em>H. tredecimpunctata</em> (2.25 individ.). The second peak of the pest was detected on 21<sup>st</sup> Aug<em>.</em> (259.05 individual), synchronized with the peaks of the four, predators. During 2022, the first incidence of the mealybug was recorded on 30<sup>th</sup> July (114.97individ.). This peak was associated with the peaks of the four predators. The second peak of <em>P. solenopsis</em> was observed on 28<sup>th</sup> Aug<em>.</em> (196.50 individ.), it coincided with the peaks of the four predators. The infestation of<em> P. solenopsis</em> and <em>T. urticae</em> and their predators were highly significantly correlated with weather factors (Min.°c. and RH).</p> Elsayed A. Refaei El-sarand E. E. A. Neveen E. El-Metwaly Abd El-Salam A. Farag Ekram A. Abdou Ismael M M Copyright (c) 2024 2024-04-05 2024-04-05 4 2 01 05 Taxonomic Redescription of genus Thriptera Solier, 1836 (Coleoptera: Pimelliinae, Tenebrionidae) in Egypt <p>This study was planned to identify, redescription and determine the recent taxonomic status of genus <em>Thriptera </em>Solier in Egypt. The gathered information indicated that genus <em>Thriptera </em>is represented in Egypt by 4 species. Their diagnostic characters, illustrated habits of adults and illustration of male genetalia were given.</p> El-Shewy Dalia A Copyright (c) 2024 2024-04-12 2024-04-12 4 2 06 11 Monitoring and assessment of mustard aphid, Lipaphis erysismi in North-Western Haryana with yellow sticky trap <p>Production of rapeseed-mustard (Brassica sp.) is severely hampered by aphid infestation in India, specifically Lipaphis erysimi (Kalt.). Impact of weather on the occurrence and multiplication of mustard aphids is very crucial and should be taken into consideration when developing an aphid management plan. Keeping this in view, an experiment was conducted at Oilseeds Section, Department of Genetics and Plant Breeding, CCS HAU, Hisar using yellow chrome painted smeared with transparent grease of 1kg tin box, five in number, height maintained at 30-45 cm above the crop canopy. Maximum numbers of aphid catches were recorded in 10th and 11th standard week. Sunshine hour seems to favour the presence of aphid in significant positive association in both the crop season 2020-21 and 2021-22. Maximum and minimum of temperature of exhibited positive correlation to the numbers of aphid. Presence of numbers of aphid cane be in surrounding mustard field can decide the volume of infestation in forthcoming period through the catch of aphid via yellow chrome smeared tin box to be vigil to manage it.</p> Dalip Kumar Rakesh Punia Ram Avtar Anil Kumar Neeraj Malik Copyright (c) 2024 2024-04-15 2024-04-15 4 2 12 14