Pyrethroids Resistance Mechanism in Egyptian Cotton Leafworm Spodoptera littoralis (Boisd.)

Abstract

The journal of Toxicology and pest control is one of the series issued twice by the Egyptian Academic Journal of Biological Sciences, and is devoted to publication of original papers related to the interaction between insects and their environment. The goal of the journal is to advance the scientific understanding of mechanisms of toxicity. Emphasis will be placed on toxic effects observed at relevant exposures, which have direct impact on safety evaluation and risk assessment. The journal therefore welcomes papers on biology ranging from molecular and cell biology, biochemistry and physiology to ecology and environment, also systematics, microbiology, toxicology, hydrobiology, radiobiology and biotechnology. www.eajbs.eg.net Provided for non-commercial research and education use. Not for reproduction, distribution or commercial use.

Monitoring of Development of Resistance to Pyrethroids in Musca domestica L. Population, Using Toxicological and Biochemical Features

“…In Spodoptera littoralis exposure to pyrethroids was accompanied by a significant change in biological (larval duration, pupal duration, adult longevity, fecundity and fertility) and biochemical (total carbohydrates, and total lipid contents) aspects of treated larvae. It also caused significant changes in the enzyme activity of the treated larvae (Rasheed et al, 2016).…”

“…Synthetic pyrethroids were developed to enhance the natural insecticide pyrethrum's specificity, persistence, and activity. The pyrethroids are a toxin, secondarily causing adverse effects, because of neuronal hyperexcitability (Rasheed et al, 2016). The nerve excitation occurs because of changes in nerve membrane permeabilities to sodium and potassium ions (Narahashi, 1971).…”

Influence of Effective Microorganisms on Some Biological and Biochemical Aspects of Spodoptera littoralis (Boisduval) (Lepidoptera: Noctuidae)

“…Moreover, Rawi et al [59] found that the treatment of EMs mildly decreased the total protein. Moreover, many researchers reported the effect of bioinsecticides and insect growth regulators on the developmental stages of S. littoralis [60].…”

Insecticides Application and the Egyptian Cotton Leafworm, Spodoptera littoralis (Boisd.) Permanent Larvae

“…In previous studies on development of resistance of cotton leafworm against certain insecticides, treating larvae with Spinetoram for six generations caused an elongation in larval period and the last larval instar could not develop to pupae and died as permanent larvae. When the larvae were treated with Emamectin or Chlorpyrifos , they could not develop to pupae and the phenomenon of permanent larvae was appeared from the first generation, while in case of Lambda-cyhalothrin it was recorded in the second generation (Rasheed 2017, Rasheed et al 2015and Rasheed et al 2016 . This work aimed to explain this phenomenon as a result of treating the cotton leafworm, S. littoralis larvae with Spinetoram pesticide.…”