Osman M.A.M. (2010): Biological efficacy of some biorational and conventional insecticides in the control of different stages of the Colorado potato beetle, Leptinotarsa decemlineata (Say) (Coleoptera: Chrysomelidae). Plant Protect. Sci., 46: 123–134. The biological efficacy of some biorational and conventional insecticides against different stages of Colorado potato beetle, Leptinotarsa deceml...

Plants extracts contain many essential natural synthesized chemical compounds with considerable potentials for medicinal exploitation and application. There has been a growing concern about the adverse effects of mosquito repellants need to search environment-friendly Mosquito repellants. Synthetic insecticides their associated toxicity issuesand incidence insect resistance haveinspired novel i...

Background: Phenol and its derivatives like dinitrophenol and pentachlorophenol (carbolic acid) are widely used as insecticides, but they are very toxic substances. Phenol is a general protoplasmic poison with corrosive local effects that denature proteins. Poisoning with phenol compounds may occur by ingestion, inhalation, and absorption through skin. In this report we presented the toxicity...

Pyrethroid insecticides are known for their potential toxicity to aquatic invertebrates and many fish species. A significant problem in the study of pyrethroid toxicity is their extreme hydrophobicity. They can adsorb to test container surfaces and many studies, therefore, report pyrethroid levels as nominal water concentrations. In this study, pyrethroid adsorption to sampling and test contain...

The joint toxicity of esfenvalerate and chlorpyrifos to the fathead minnow (Pimephales promelas) and the aquatic midge larvae (Chironomus tentans) was determined using comparisons to independent action (IA) and concentration addition (CA) models. Equipotent mixtures of the two insecticides were used for initial testing of both species. A secondary study evaluating the effects of low-level chlor...