Journal of Applied Entomologist https://www.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> en-US dzarc.ento@gmail.com (Dzarc Publications (Mamta Kamlashankar Mishra)) sarwanent@pau.edu (Dr. Sarwan Kumar) Fri, 05 Jul 2024 00:00:00 +0000 OJS 3.3.0.10 http://blogs.law.harvard.edu/tech/rss 60 Insect pests, snails and spider mite associated with cultivated field peas, and Liriomyza spp parasitoids https://www.dzarc.com/entomology/article/view/558 <p>Field pea (<em>Pisum sativum</em> L.) is one of the most popular foods having a high nutritional value for human consumption. This important vegetable crop is liable to infestations of several insect pests that negatively affect the yield quantitatively and qualitatively. The current investigation was carried out at the experimental farm of Sakha Agricultural Research Station, during 2019/2020 and 2021 seasons. The objectives were to monitor the population dynamics of some insect pests, as well as two-spotted spider mite and snail. Also, the parasitoids attacking <em>Liriomyza</em> spp were recorded and monitored. In the first plantation (sown on October 10<sup>th</sup>), <em>Liriomyza</em> spp, <em>Bemisia tabaci</em>, <em>Empoasca</em> spp, as well as <em>Tetranychus urticae</em> and the snail, <em>Monacha cantiana</em> were found in considerable higher population densities; compared to <em>Lampides boeticus</em>, <em>Thrips tabaci</em> or <em>Pieris rapae</em>. In the second plantation (sown on January 15<sup>th</sup>), the infestations of field peas by <em>Lampides boeticus</em> and <em>Thrips tabaci</em> were higher than these of the first plantation. Four hymenopterous parasitoids were recorded, as emerging from <em>Liriomyza</em> spp pupae: <em>Opius dissitus</em> Muesebeck (Braconidae), <em>Diglyphus isaea</em> Waker (Eulophidae), <em>D. crassinervis</em> Erdos (Eulophidae) and <em>Pediobius</em> spp (Eulophidae). The total parasitism of the four species, during both seasons of study, ranged between 22.18 and 49.76% <em>Liriomyza</em> spp parasitism by <em>Opius dissitus</em> ranged between 3.60 and 5.31%, <em>Diglyphus isaea</em> between 12.99 and 33.33%, <em>D. crassinervis</em> between 2.04 and 8.85%, while that of <em>Pediobius</em> sp. ranged between 2.77 and 4.56%. The obtained results, from the current study, show that parasitoids of <em>Liriomyza</em> spp may contribute effectively in managing the leafminers attacking field peas. Accordingly, application of insecticides to control the dominant insects should be seriously minimized, particularly that <em>P. sativum</em> is mostly consumed as fresh vegetable, as well as the infestations by monitored pests were low in both seasons of study.</p> Aneesa Saber Sadek Copyright (c) 2024 https://creativecommons.org/licenses/by/4.0 https://www.dzarc.com/entomology/article/view/558 Fri, 05 Jul 2024 00:00:00 +0000 Growth of Spodoptera frugiperda on four host plants and its sensitivity to some insecticides using various exposure methods https://www.dzarc.com/entomology/article/view/555 <p>In the maize fields, fall armyworm,<em> Spodoptera frugiperda</em> (FAW) Smith (Lepidoptera: Noctuidae) is a polyphagous lepidopteran pest, destroying maize crop, causes serious economic damage to corn plants worldwide in recent years especially Egypt. Three different insecticides were application with four exposure methods and four host plants in this research under laboratory conditions against <em>S. frugiperda</em>. Emamectin benzoate was the high efficacy insecticide (LC<sub>50</sub> 1.90 mg <sub>a. i.</sub> / L and Toxicity index 100 %). Therefore, emamectin benzoate was observed the average highest larvae mortality in the larva-dip, leaf-dip, film and spray methods of 83.57, 81.87, 81.25 and 77.27 %, respectively. While, the other insecticides were least toxic with average mortality percentage 75.62 and 48.75 % with, indoxacarb and pyradelil, respectively when the film method was used. The moderate activity of indoxacab and pyradelil spray and leaf-dip methods comparing to that larva-dip method. Also, limited research has been conducted on biological aspects of FAW reared on different plants. Our findings demonstrated that there were various in larvae development period reared on maize had the shortest development duration 16.75 days and pupa period 9.25 days, the fecundity (1650.50 egg) and fertility (95.23 %) were highest, while the larvae (20.00 days) and pupa (14.25 days) duration were the longer fed on cotton, the fecundity (1110.25 egg) and Fertility (66.87%) were least. There were also moderate in the development survival, fecundity and Fertility to FAW reared on cowpea and potato plants. The preferred host of FAW in vitro was maize and other host plants were intermediate host.</p> Abdel Salam A. Farag, Heba S. Abd El-Aty Copyright (c) 2024 https://creativecommons.org/licenses/by/4.0 https://www.dzarc.com/entomology/article/view/555 Fri, 12 Jul 2024 00:00:00 +0000 Application method of local plant material for effective management of Nematode (Nematoda) infestation in tomato (Lycopersicum esculentus) production https://www.dzarc.com/entomology/article/view/574 <p>Tomato (<em>Lycopersicum esculentus</em>) is an important global vegetable crop that contributes to nutrient security. Production of this crop is constrained by many factors of which nematode infestation is observed to be quite threatening. The study aimed to determine appropriate method of application of identified local plant materials for effective management of nematode infestation. This was achieved by conducting field trials at Lower Nursery, Njala campus through establishment of experimental plots of tomato host plant in a factorially Randomized Complete Block Design (RCBD) with three replicates in each treatment, repeated twice in the year. The plot size was 18.8 m ×12m with 12 experimental units. The size of each treatment unit was 3m x 4m with 0.6m path between plots and 1 m between replicates. Each plot consisted of 4 rows with 6 plants stands per row. The experimental design consisted of one level of tomato variety (Mongal) and one local plant material which is Siam weed (<em>Chromolaena odorata</em>). Three methods (Pocketing, Ring, and Broadcasting) of identified local plant material were used to determine the appropriate method of application. Data were collected on percentage survival rate, morphological parameters, phenology and yield parameters of tomato host plant respectively. The Data collected were analyzed using Statistical Analysis System (SAS). Differences between mean values of the various parameters were determined by one-way ANOVA analysis while significantly different means were separated using the Student-Newman-Keuls (SNK) test at <em>p</em>≤0.05 level of significance. The Ring method of <em>Chromolaena odorata</em> application yielded the most favorable results. These values were the highest among all methods, indicating superior growth and effective management of nematodes.</p> Jusu Momoh Lahai, Philip Maada Pessima Mornya, Peter Dennis Musa, Osman Bashir Salam Jalloh Copyright (c) 2024 https://creativecommons.org/licenses/by/4.0 https://www.dzarc.com/entomology/article/view/574 Fri, 02 Aug 2024 00:00:00 +0000 Spatial diversity of Lepidoptera and Odonata species of Village Verna https://www.dzarc.com/entomology/article/view/576 <p>Goa is an extension of the Western Ghat biodiversity hotspot, a tropical, bio-diverse region in India. However, basic literature on insect species in Goa on their abundance, distribution and ecology is still lacking. Documenting biodiversity in Goa is important to provide valuable biological information in order to set up the biodiversity conservation and protection strategies to combat rapid regional habitat loss and climate change. This study provides information on the biodiversity of Lepidoptera and Odonata species in one of the small village areas of Verna in South Goa. Verna, with its undulating terrain, is rich in bio-resources but is facing habitat loss due to land use changes in recent years. A total of 181 Lepidoptera species, including 142 butterfly species from 5 families and 39 species of moth from 11 families, as well as 33 species of Odonata, including 20 species of dragonflies from 3 families and 13 species of damselflies from 4 families, were observed in this village. The study also includes the first finding of <em>Protosticta gravelyi</em> in this village. This study data of Lepidoptera and Odonata species collected through photo documentation contribute to the insect population for biodiversity monitoring in Goa.</p> Dafilgo Fernandes, Neville Socorro Cruz Gama, Fulganco Cardozo Copyright (c) 2024 https://creativecommons.org/licenses/by/4.0 https://www.dzarc.com/entomology/article/view/576 Mon, 05 Aug 2024 00:00:00 +0000