Study of the Toxic Effect of Chemical Pesticide Actellic 50EC against Culiseta longiareolata Mosquito Larvae Chaouch Rabah1, Bouaziz Ali2, Gacem Habiba1, Saoudi Boudjema3,* 1Laboratory of Marine Ecobiology and Coastal Environments, Department of Natural Sciences, Higher School for Professors of Technological Education, Skikda (ENSET), Brother Bouceta city Azzaba21000, Algeria 2Laboratory of Terrestrial and Aquatic Ecosystems (LTAE), Faculty of Science, Department of Biology, Mohamed Cherif Messaadia University, Souk-Ahras41000, Algeria 3Laboratory of Organic Chemistry and Interdisciplinarity (LOCI), Faculty of Science and Technology, Mohamed Cherif Messaadia University, Souk Ahras, 41000Souk Ahras, Algeria *Email: b.saoudi@univ-soukahras.dz (corresponding author): ORCID ID 0000-0001-6379-7043
Online Published on 31 August, 2024. Abstract In this study, the toxicity of an insecticide, Actellic 50EC, was tested against L3 and L4 instars of mosquito larvae Culiseta longiareolata (Macquart). The newly exuviated larvae were subjected to various concentrations (25, 40, and 75 µg/l) for 24 hr and out until the adult stage. Probit analysis for L3 stage showed that following obdsevations continued to adult stage LC50=18.70 µg/l and LC90= 60.81 µg/l. On the other hand, L4 stage shows these were LC50= 36.42 µg/l and the LC90= 102.45 µg/l, respectively, indicating that it is more toxic to L3. This study reveals that lipids and carbohydrates have decreased, while there is an increase in proteins, which has been associated in some cases with morphological deformations. Top Keywords Organophosphate, Pirimiphos-methyl, Biochemical metabolite, Culicidian, L3 stage larvae, L4 stage larvae, Lipids, Carbohydrates, Proteins, LC50, LC90, Diseases, Chemical stressors, Morphological deformations. Top |