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Zoology

2002

Malathion

Articles 1 - 2 of 2

Full-Text Articles in Animal Sciences

Level Of Lactate Dehydrogenase (Ldh) In Resistant And Susceptible Strains Of Culicine Mosquitoes Of The Karachi Region After Treatment With Ddt, Malathion And Cyfluthrin, M. Arshad Azmi, Imtiaz Ahmed, Syed Naim-Ul-Hasan Naqvi, Kahkashan Akhtar Jan 2002

Level Of Lactate Dehydrogenase (Ldh) In Resistant And Susceptible Strains Of Culicine Mosquitoes Of The Karachi Region After Treatment With Ddt, Malathion And Cyfluthrin, M. Arshad Azmi, Imtiaz Ahmed, Syed Naim-Ul-Hasan Naqvi, Kahkashan Akhtar

Turkish Journal of Zoology

The effects of Malathion, Cyfluthrin, and DDT were observed on the activity of lactate dehydrogenase (LDH) in susceptible and resistant strains of culicine mosquitoes. Biochemical estimation (colorimetry) revealed a remarkable increase in the enzyme activity in Culex fatigans (L.Y. strain). In contrast, in Culex fatigans (G.I. strain) and Culex fatigans (K.U strain), inhibition of enzyme activity was found after treatment with pesticides.


The Toxic Effects Of Malathion (Organophosphate Insecticide) On The Daphnia Magna Straus, 1820 (Crustacea, Cladocera), Maryam Rassoulzadegan, Nusret Akyurtlakli Jan 2002

The Toxic Effects Of Malathion (Organophosphate Insecticide) On The Daphnia Magna Straus, 1820 (Crustacea, Cladocera), Maryam Rassoulzadegan, Nusret Akyurtlakli

Turkish Journal of Zoology

The toxic effects of technical grade (95 %) malathion and commercial (25 %) malathion were investigated on young (£ 24 h old) Daphnia magna in static acute toxicity tests (24 and 48 h). The culture of D. magna and toxicity tests were performed at 24 ± 1 ºC with a photoperiod of 16 h light and 8 h dark. To obtain a healthy population, the fecundity of each female in their life cycle was also investigated. The immobilization of daphnids was considered for determination of the 24 h / 48 h effective concentration (50 %). The EC50 values were found …