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Dec 2025 DOI 10.14302/issn.2694-2275.jzr-25-5595
S GopalakrishnanCorresponding author
Andipalayam Lake, a freshwater body located in Tiruppur, Tamil Nadu, plays a significant role in sustaining the local ecosystem, particularly through its diverse insect populations. This study aims to document and analyze the insect biodiversity present in and around Andipalayam Lake, focusing on the ecological roles these species play in maintaining the lake’s health. Insects are key components of aquatic ecosystems, contributing to processes such as pollination and nutrient cycling and serving as prey for higher trophic levels. Despite their ecological importance, studies on the insect biodiversity of Andipalayam Lake have been limited, prompting the need for an extensive survey. This research employed a combination of sweep nets, pitfall traps, and light traps to collect insect species over a year, covering various seasons to capture population dynamics and seasonal variations. Water quality parameters, such as temperature, pH, and dissolved oxygen, were monitored to assess their influence on insect diversity. The study identified over 38 species of insects from diverse orders, including Odonata (dragonflies), Diptera (flies), Coleoptera (beetles), and Hemiptera (true bugs). Seasonal variations were observed, with higher species richness during the monsoon period due to increased vegetation and moisture levels. The most abundant species were found to belong to Diptera and Coleoptera, indicating their adaptability to fluctuating water levels. Environmental factors such as pollution from nearby agricultural runoff and urban development were found to negatively affect insect diversity, with a notable decline in sensitive species during periods of increased contamination.
May 2020 DOI 10.14302/issn.2639-3166.jar-20-3246
H. M. Adam AbubakerCorresponding author
Department of Crop Science, College of Agriculture, University of Bahri, Khartoum North, Sudan
The fruit flies of familyTephritidae are considered as serious pests of Mango in Sudan. They cause substantial damage to Mango in all Mango production areas. The application of various pesticides appeared to be ineffective. Therefore, this study was carried out to investigate the efficacy of Spinosad as new promising control measure to the fruit flies. This study was carried out at Shendi area, River Nile State during the period from April 2012 to August 2014, where Pheromone and food bait traps were used for detection and monitoring the fruit flies species in the study area. Spinosad (0.24g\L) was applied as a partial spraying pesticide. Results indicated that; the application of Spinosad highly decreased the fruit flies numbers. The average number of fruit flies collected in April was (947.22 and 1001.67) for the treated and untreated orchards respectively. The numbers of fruit flies in the treated orchards had decreased gradually during May, June, July and August, 904.7, 760.22, 609.6 and 452.7, respectively, but in untreated orchards for the same months had increased to 1003.67, 1103.67, 1336.67and 1468.67 respectively. However, the infestation level in mango fruits in the treated orchards was found to be 2% compared with 64% for untreated one.
Apr 2020 DOI 10.14302/issn.2639-3166.jar-20-3250
H. M. Adam AbubakerCorresponding author
Department of Crop Science, College of Agriculture, University of Bahri, Khartoum North, Sudan
The Basil plant (Ocimumbasilicum L) is an annual herb; belongs to family Lamiaceae. It is found to be an important source for Methyl Eugenol (ME), the fruit flies attractant. This study was carried out at Shendi area with main objective to assess the amount of ME extracted from Ocimumbasilicumplant to evaluate its potentiality as fruit fly attractant. Plants of basil were grown till to maturity, then the differential harvest of leaves, flower and seeds were chemically investigated for volatilome. Five basil formulations (paste and powder of leaves, paste and powder of flowers, isolated ME from basil oil) were used for trapping potential of Bactrocera spp in mango orchards, as compared to the synthetic ME. The oil was extracted using Soxhlet apparatus, steam and water distillation, and analyzed using GCMS. The results revealed that highest extracted oil percentages was obtained from flowers, leaves, seed and stem were 5.75%, 3.03%, 0.02% and 0.21% respectively. Moreover, the basil traps catch was found to be lower compared with that of the control traps. Furthermore, when extracted ME from basil plant was compared with the standard synthetic, it gave lower catch fruit flies numbers, but the difference was not significant (>0.05). In conclusion, the basil raw derivates are confirmed not to be attractive for flies but the oil distillable from the leaves could be in force of its attractant ME contents and insecticide potency.