Culex pipiens (L.) (Diptera: Culicidae) is the most important medical insect in many parts of world. Biological and natural chemicals have advantages over traditional ones case mosquito control. The efficacy two insecticides belonging to different groups chlorpyrifos-ethyle (oranophosphate) Bacillus thuranginsis var israelinsis) (bio-insecticides)were evaluated against field laboratory individu...

The peach–potato aphid, Myzus persicae (Sulzer), is one of the most important pests economic crops. It damages plant directly by consuming nutrients and water indirectly transmitting viruses. This pest has unenviable title having resistance to more insecticides than any other herbivorous insect pest. Due development its chemical pesticides, it necessary find control options. Consequently, incre...

Bacillus thuringiensis vegetative insecticidal proteins (Vip) are potential alternatives for B. thuringiensis endotoxins that are currently utilized in commercial transgenic insect-resistant crops. Screening a large number of B. thuringiensis isolates resulted in the cloning of vip3Ac1. Vip3Ac1 showed high insecticidal activity against the fall armyworm Spodoptera frugiperda and the cotton boll...

Serratia marcescens is a Gram negative bacterium (Enterobacteriaceae) often associated with infection of insects. In order to find pathogenic bacteria with the potential to control scarab larvae, several bacterial strains were isolated from the hemocoel of diseased Phyllophaga spp (Coleoptera:Scarabaeidae) larvae collected from cornfields in Mexico. Five isolates were identified as Serratia mar...

Commercial formulations and unformulated conidia of Beauveria bassiana strain GHA were applied to field-grown plants and artificially infested with Trichoplusia ni (Hübner) larvae to compare the relative insecticidal activity resulting from direct spray contact with insecticidal activity due to contact with dry spray residue. In general, applications to cabbage, Brassica oleracea L., resulted i...

Mimosine, a non-protein amino acid, is found in several tropical and subtropical plants, which has high value for medicine and agricultural chemicals. Here, in continuation of works aimed to development of natural product-based pesticidal agents, we present the first significant findings for insecticidal and nematicidal activities of novel mimosine derivatives. Interestingly, mimosinol and deut...

In a continuing effort to develop novel β-carbolines endowed with better insecticidal activity, a simple high-yielding method for the synthesis of harmine compounds starting from L-tryptophan has been developed and a series of 1,3-substituted β-carboline derivatives have been synthesized and evaluated for their cytotoxicity against insect cultured Sf9 cell line in vitro and insecticidal activit...

Bacillus thuringiensis (Bt) X022 is a novel strain isolated from soil in China, and showed strong insecticidal activity against several Lepidopteran pests. In this work, we performed whole genome sequencing of this Bt strain using the next-generation sequencing technology, and further conducted a comparative analysis with the proteomics data of the specific spore-release period based on LC-MS/M...