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/720 <p>Piercing sucking pests considered the most important dangerous pests infesting and destructive, a wide range of different agricultural crops especially watermelon fields. Amature stages and adults of the sucking pests are equally harmful for the green parts on the plants. This study investigated the population fluctuations of the piercing sulking pests,<em> Tetranychus urticae</em> (Acari: Tetranychidae)<em> Bemisia tabaci</em> (Hemiptera: Aleyrodidae),<em> Thrips tabaci</em> (Thysanoptera: Thripidae) and <em>A. gossypii </em>(Hemiptera: Aphididae, and <em>Aphis gossypii</em> and their predators in Kafr El-Sheikh Governorate, Egypt, over the 2024 and 2025 seasons. The findings showed the mite was the most prevalent pest, while thrips were the least common. Spider mite and whitefly populations reached their peak from mid-June to late July in both seasons. Aphid populations were consistently low throughout the study. Four key predatory species were identified: <em>Hippodamia tredecimpunctata</em> (Coleopteran: Coccinellidae), <em>Coccinella undecimpunctata</em> (Coleoptera: Coccinellidae), <em>Orius</em> spp (Hemiptera: Anthocoridae) and <em>Chrysoperla carnea</em> (Nuroptera: Chrysopidae). <em>H. tredecimpunctata</em> being the most abundant and associated with the peaks of the pests on June and July. However, regarding the obtained data in the first and second seasons, observed on June 2^ndwith 268.5 and 255.25 individuals, respectively. Our weather conditions are highly significant correlated with the pests and their predators in the first and second seasons. Therefore, no significant correlation with whitefly and highly significant correlation with the aphid. The overall impact of predators on pests was insignificant and significant on aphid. These results are crucial for developing integrated pest management strategies.</p> Abd-Elsalam A. Farag Samy Kamal Mohammad Korish Copyright (c) 2025 https://creativecommons.org/licenses/by/4.0/ 2025-10-01 2025-10-01 5 4 01 04 10.64171/JAE.5.4.1-4