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/659 <p>In order to evaluate agricultural pests and predators on vegetable crops, the study was carried out in the Meerut district of Uttar Pradesh between August 2024 and May 2025. A variety of insects impact all crops and just feed on vegetable crops. Depending on the plant variety, cropping season, geographic location, and possibility for insect damage, crop losses in vegetables can vary significantly. Vegetable crops are especially susceptible to diseases and insect pests because they are softer, more delicate, and have a shorter lifespan than other crops.</p> <p>The number of existing small pests is increasing along with the introduction of new ones, such as mealybugs, fruit flies, stem borers, diamondback moths among phytophagous insects, and red spider mites among acarines. Harvests of tomatoes and chilies have suffered significant harm due to recent infestations including South American tomato pinworm and chili black blossom thrips.</p> <p>In the Meerut district of Uttar Pradesh, the pest status of vegetable crops. Among the herbivores, insect pests include 13 species of the order Lepidotera, including <em>Erias vitella, Euzopheraperticella, Etiella zinckenella, Hellula undalis, Helicoverpa armigera, Leucinodes orbonalis, Pectinophora gossypiella, Phthorimaea operculella, Pieris brassicae, Plutella xylostella, Spilosoma obliqua, Spodoptera litura, and Thysanoplusia orichalcea; seven species of Hemiptera, including Aphis gossypii, Bemisia tabaci, Brevicoryne brassicae, Bagrada cruciferarum, Dysdercus cingulatus, Lipaphis erysimi, and Myzus persicae.</em></p> <p>During our field investigation in this area, we found that three species of the order Coleoptera <em>Epilachna vigintiocto punctata, Holotrichia consanguinea, and Raphidopalpa foveicollis</em> and one species of the order Diptera<em> Dacus</em> <em>cucurbitae</em> damaged various vegetable crops.</p> Kumkum Minakshi Saini Kanchan Upadhyay Copyright (c) 2025 https://creativecommons.org/licenses/by/4.0 2025-07-04 2025-07-04 5 3 01 08 https://dzarc.com/entomology/article/view/672 <p>A study aims to investigate the effect of extremely low-frequency electromagnetic field (ELF-EMF) designed pulses on the biological and physiological systems of <em>Rhynchophorus ferrugineus</em> (Red Palm Weevils) reared insects under specific conditions for a specified period. About 300 RPW insects at three stages (larvae, pupae, and adults) are evenly divided. Each stage is similarly categorized into two groups: a tested group exposed to ELF-EMF with a strength of 30 mGauss at a frequency of 20 Hz for 86 minutes, and a control group not exposed. A magnetic field is generated and induced at the centre of the rearing holder via an electric current using a current generator device; the magnetic field strength is measured in Gauss with a gauss meter. During rearing, a predetermined number of insects from each group (control and tested) are isolated or taken for biochemical analysis tests that assess the core influence of the ELF-EMF designed pulses on the exposed insects compared to the unexposed, and the results are recorded. The biochemical tests involve measuring and comparing parameters such as total proteins, total carbohydrates, total lipids, invertase, and alkaline phosphatase enzymes. Additionally, the body weight of the insects is recorded before and after exposure, and the change in body weight and growth rate are calculated for comparison. The results indicate that body weight, growth rate, and the biological components of R. ferrugineus are negatively affected by exposure to ELF-EMF designed pulses.</p> Eman F El-Rehewy Kh. Gh. Elmalki A. Elmaghraby A. Amin Heba A. Ahmed Copyright (c) 2025 https://creativecommons.org/licenses/by/4.0 2025-07-07 2025-07-07 5 3 09 13 10.64171/JAE.5.3.09-13